diff --git a/pom.xml b/pom.xml
index c40090c5dcf60f822c54e694ab6c0ce9e4143891..e8d0dd0861ab16602bc65a318f3ec73a7355fe4c 100644
--- a/pom.xml
+++ b/pom.xml
@@ -130,6 +130,9 @@
 						</goals>
 					</execution>
 				</executions>
+				<configuration>
+					<excludePackageNames>com.xeiam.xchart.internal.*</excludePackageNames>
+				</configuration>
 			</plugin>
 		</plugins>
 	</build>
diff --git a/src/main/java/com/xeiam/xchart/Chart.java b/src/main/java/com/xeiam/xchart/Chart.java
index 580105ef656747d92a7fa9437827df5564ca89f7..3f3433773e2b81ac8448c082ed6ed54a2c4b981d 100644
--- a/src/main/java/com/xeiam/xchart/Chart.java
+++ b/src/main/java/com/xeiam/xchart/Chart.java
@@ -24,27 +24,29 @@ import java.util.Collection;
 import java.util.Date;
 import java.util.Locale;
 
-import com.xeiam.xchart.series.Series;
-import com.xeiam.xchart.series.SeriesColor;
-import com.xeiam.xchart.series.SeriesLineStyle;
-import com.xeiam.xchart.series.SeriesMarker;
+import com.xeiam.xchart.internal.chartpart.AxisPair;
+import com.xeiam.xchart.internal.chartpart.ChartTitle;
+import com.xeiam.xchart.internal.chartpart.Legend;
+import com.xeiam.xchart.internal.chartpart.Plot;
 
 /**
+ * An XChart Chart
+ * 
  * @author timmolter
  */
 public class Chart {
 
-  protected int width;
-  protected int height;
+  public int width;
+  public int height;
   private Color backgroundColor;
-  protected Color bordersColor;
-  protected Color fontColor;
+  public Color bordersColor;
+  public Color fontColor;
 
-  protected final static int CHART_PADDING = 10;
+  public final static int CHART_PADDING = 10;
 
-  protected ChartTitle chartTitle = new ChartTitle(this);
-  protected Legend chartLegend = new Legend(this);
-  protected AxisPair axisPair = new AxisPair(this);
+  public ChartTitle chartTitle = new ChartTitle(this);
+  public Legend chartLegend = new Legend(this);
+  public AxisPair axisPair = new AxisPair(this);
   protected Plot plot = new Plot(this);
 
   /**
diff --git a/src/main/java/com/xeiam/xchart/ChartColor.java b/src/main/java/com/xeiam/xchart/ChartColor.java
index b8c1f419872e29e29c5988f92b5c5b1fe2b5e8f6..9735a7f0ecf5863237454512064d930dfbe8492d 100644
--- a/src/main/java/com/xeiam/xchart/ChartColor.java
+++ b/src/main/java/com/xeiam/xchart/ChartColor.java
@@ -18,6 +18,8 @@ package com.xeiam.xchart;
 import java.awt.Color;
 
 /**
+ * Pre-defined Colors used for various Chart Elements
+ * 
  * @author timmolter
  */
 public enum ChartColor {
diff --git a/src/main/java/com/xeiam/xchart/QuickChart.java b/src/main/java/com/xeiam/xchart/QuickChart.java
index 97522a41c305d8b87ac914d49328c8c41e38a19a..a7ace066eb20a17d73b9fc65c8ec806c0f7ad4b1 100644
--- a/src/main/java/com/xeiam/xchart/QuickChart.java
+++ b/src/main/java/com/xeiam/xchart/QuickChart.java
@@ -15,11 +15,8 @@
  */
 package com.xeiam.xchart;
 
-import com.xeiam.xchart.series.Series;
-import com.xeiam.xchart.series.SeriesMarker;
-
 /**
- * A convenience class for making Charts with one line of code.
+ * A convenience class for making Charts with one line of code
  * 
  * @author timmolter
  */
diff --git a/src/main/java/com/xeiam/xchart/Series.java b/src/main/java/com/xeiam/xchart/Series.java
new file mode 100644
index 0000000000000000000000000000000000000000..fc1980c2f1dd62eadb3111bde2c7b48083be4f9b
--- /dev/null
+++ b/src/main/java/com/xeiam/xchart/Series.java
@@ -0,0 +1,204 @@
+/**
+ * Copyright 2011-2012 Xeiam LLC.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package com.xeiam.xchart;
+
+import java.awt.BasicStroke;
+import java.awt.Color;
+import java.math.BigDecimal;
+import java.util.Collection;
+import java.util.Date;
+import java.util.Iterator;
+
+import com.xeiam.xchart.internal.chartpart.Axis.AxisType;
+import com.xeiam.xchart.internal.markers.Marker;
+
+/**
+ * A Series containing X and Y data to be plotted on a Chart
+ * 
+ * @author timmolter
+ */
+public class Series {
+
+  public String name = "";
+
+  public Collection<?> xData;
+
+  public Collection<Number> yData;
+
+  public Collection<Number> errorBars;
+
+  /** the minimum value of axis range */
+  public BigDecimal xMin;
+
+  /** the maximum value of axis range */
+  public BigDecimal xMax;
+
+  /** the minimum value of axis range */
+  public BigDecimal yMin;
+
+  /** the maximum value of axis range */
+  public BigDecimal yMax;
+
+  /** Line Style */
+  public BasicStroke stroke;
+
+  /** Line Color */
+  public Color strokeColor;
+
+  /** Marker Style */
+  public Marker marker;
+
+  /** Marker Color */
+  public Color markerColor;
+
+  /**
+   * Constructor
+   * 
+   * @param name
+   * @param xData
+   * @param xAxisType
+   * @param yData
+   * @param yAxisType
+   * @param errorBars
+   */
+  public Series(String name, Collection<?> xData, AxisType xAxisType, Collection<Number> yData, AxisType yAxisType, Collection<Number> errorBars) {
+
+    this.name = name;
+    this.xData = xData;
+    this.yData = yData;
+    this.errorBars = errorBars;
+
+    // xData
+    BigDecimal[] xMinMax = findMinMax(xData, xAxisType);
+    xMin = xMinMax[0];
+    xMax = xMinMax[1];
+
+    // yData
+    BigDecimal[] yMinMax = null;
+    if (errorBars == null) {
+      yMinMax = findMinMax(yData, yAxisType);
+    } else {
+      yMinMax = findMinMaxWithErrorBars(yData, errorBars);
+    }
+    yMin = yMinMax[0];
+    yMax = yMinMax[1];
+    // System.out.println(yMin);
+    // System.out.println(yMax);
+
+    Color color = SeriesColor.getNextAWTColor();
+    strokeColor = color;
+    markerColor = color;
+
+    marker = SeriesMarker.getNextMarker();
+    stroke = SeriesLineStyle.getNextBasicStroke();
+
+  }
+
+  /**
+   * Finds the min and max of a dataset
+   * 
+   * @param data
+   * @return
+   */
+  private BigDecimal[] findMinMax(Collection<?> data, AxisType axisType) {
+
+    BigDecimal min = null;
+    BigDecimal max = null;
+
+    for (Object dataPoint : data) {
+
+      BigDecimal bigDecimal = null;
+
+      if (axisType == AxisType.NUMBER) {
+        bigDecimal = new BigDecimal(((Number) dataPoint).toString());
+
+      } else if (axisType == AxisType.DATE) {
+        Date date = (Date) dataPoint;
+        bigDecimal = new BigDecimal(date.getTime());
+      }
+      if (min == null || bigDecimal.compareTo(min) < 0) {
+        min = bigDecimal;
+      }
+      if (max == null || bigDecimal.compareTo(max) > 0) {
+        max = bigDecimal;
+      }
+    }
+
+    return new BigDecimal[] { min, max };
+  }
+
+  /**
+   * Finds the min and max of a dataset accounting for error bars
+   * 
+   * @param data
+   * @return
+   */
+  private BigDecimal[] findMinMaxWithErrorBars(Collection<Number> data, Collection<Number> errorBars) {
+
+    BigDecimal min = null;
+    BigDecimal max = null;
+
+    Iterator<Number> itr = data.iterator();
+    Iterator<Number> ebItr = errorBars.iterator();
+    while (itr.hasNext()) {
+      BigDecimal bigDecimal = new BigDecimal(itr.next().doubleValue());
+      BigDecimal eb = new BigDecimal(ebItr.next().doubleValue());
+      if (min == null || (bigDecimal.subtract(eb)).compareTo(min) < 0) {
+        min = bigDecimal.subtract(eb);
+      }
+      if (max == null || (bigDecimal.add(eb)).compareTo(max) > 0) {
+        max = bigDecimal.add(eb);
+      }
+    }
+    return new BigDecimal[] { min, max };
+  }
+
+  public void setLineStyle(SeriesLineStyle lineStyle) {
+
+    stroke = SeriesLineStyle.getBasicStroke(lineStyle);
+  }
+
+  public void setLineStyle(BasicStroke lineStyle) {
+
+    stroke = lineStyle;
+  }
+
+  public void setLineColor(SeriesColor lineColor) {
+
+    strokeColor = SeriesColor.getAWTColor(lineColor);
+  }
+
+  public void setLineColor(java.awt.Color lineColor) {
+
+    strokeColor = lineColor;
+  }
+
+  public void setMarker(SeriesMarker marker) {
+
+    this.marker = SeriesMarker.getMarker(marker);
+  }
+
+  public void setMarkerColor(SeriesColor lineColor) {
+
+    this.markerColor = SeriesColor.getAWTColor(lineColor);
+  }
+
+  public void setMarkerColor(java.awt.Color lineColor) {
+
+    this.markerColor = lineColor;
+  }
+
+}
diff --git a/src/main/java/com/xeiam/xchart/SeriesColor.java b/src/main/java/com/xeiam/xchart/SeriesColor.java
new file mode 100644
index 0000000000000000000000000000000000000000..605c2275075263794fe49735eaf495cd289aff4b
--- /dev/null
+++ b/src/main/java/com/xeiam/xchart/SeriesColor.java
@@ -0,0 +1,118 @@
+/**
+ * Copyright 2011-2012 Xeiam LLC.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package com.xeiam.xchart;
+
+import java.awt.Color;
+import java.util.EnumSet;
+import java.util.HashMap;
+import java.util.Map;
+
+/**
+ * Pre-defined Colors used for Series Lines and Markers
+ * 
+ * @author timmolter
+ */
+public enum SeriesColor {
+
+  /** BLUE */
+  BLUE(0, new Color(0, 55, 255)),
+
+  /** ORANGE */
+  ORANGE(1, new Color(255, 172, 0)),
+
+  /** PURPLE */
+  PURPLE(2, new Color(128, 0, 255)),
+
+  /** GREEN */
+  GREEN(3, new Color(0, 205, 0)),
+
+  /** RED */
+  RED(4, new Color(205, 0, 0)),
+
+  /** YELLOW */
+  YELLOW(5, new Color(255, 215, 0)),
+
+  /** MAGENTA */
+  MAGENTA(6, new Color(255, 0, 255)),
+
+  /** PINK */
+  PINK(7, new Color(255, 166, 201)),
+
+  /** LIGHT_GREY */
+  LIGHT_GREY(8, new Color(207, 207, 207)),
+
+  /** CYAN */
+  CYAN(9, new Color(0, 255, 255)),
+
+  /** BROWN */
+  BROWN(10, new Color(150, 74, 0)),
+
+  /** BLACK */
+  BLACK(11, new Color(0, 0, 0)),
+
+  /** RANDOM */
+  RANDOM(12, new Color((int) (Math.random() * 255), (int) (Math.random() * 255), (int) (Math.random() * 255)));
+
+  int id;
+  Color color;
+
+  private static int nextId = 0;
+
+  private static final Map<Integer, SeriesColor> idLookup = new HashMap<Integer, SeriesColor>();
+  static {
+    for (SeriesColor seriesColor : EnumSet.allOf(SeriesColor.class)) {
+      idLookup.put(seriesColor.getId(), seriesColor);
+    }
+  }
+
+  private Integer getId() {
+
+    return id;
+  }
+
+  protected static void resetId() {
+
+    nextId = 0;
+  }
+
+  protected static Color getAWTColor(SeriesColor seriesColor) {
+
+    return seriesColor.color;
+  }
+
+  protected static Color getNextAWTColor() {
+
+    SeriesColor seriesColor = idLookup.get(nextId);
+    if (seriesColor == null) {
+      // rotate thru from beginning
+      resetId();
+    }
+    return idLookup.get(nextId++).color;
+  }
+
+  /**
+   * Constructor
+   * 
+   * @param id
+   * @param color
+   */
+  private SeriesColor(int id, Color color) {
+
+    this.id = id;
+    this.color = color;
+  }
+
+}
diff --git a/src/main/java/com/xeiam/xchart/SeriesLineStyle.java b/src/main/java/com/xeiam/xchart/SeriesLineStyle.java
new file mode 100644
index 0000000000000000000000000000000000000000..55fe62a75bce9e5dafe2da185d05602c39d314a6
--- /dev/null
+++ b/src/main/java/com/xeiam/xchart/SeriesLineStyle.java
@@ -0,0 +1,106 @@
+/**
+ * Copyright 2011-2012 Xeiam LLC.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package com.xeiam.xchart;
+
+import java.awt.BasicStroke;
+import java.util.EnumSet;
+import java.util.HashMap;
+import java.util.Map;
+
+/**
+ * Pre-defined Line Styles used for Series Lines
+ * 
+ * @author timmolter
+ */
+public enum SeriesLineStyle {
+
+  /** NONE */
+  NONE(-1, null),
+
+  /** SOLID */
+  SOLID(0, new BasicStroke(1, BasicStroke.CAP_BUTT, BasicStroke.JOIN_BEVEL)),
+
+  /** DASH_DOT */
+  DASH_DOT(1, new BasicStroke(1, BasicStroke.CAP_BUTT, BasicStroke.JOIN_BEVEL, 10.0f, new float[] { 3.0f, 1.0f }, 0.0f)),
+
+  /** DASH_DASH */
+  DASH_DASH(2, new BasicStroke(1, BasicStroke.CAP_BUTT, BasicStroke.JOIN_BEVEL, 10.0f, new float[] { 3.0f, 3.0f }, 0.0f)),
+
+  /** DOT_DOT */
+  DOT_DOT(3, new BasicStroke(1, BasicStroke.CAP_BUTT, BasicStroke.JOIN_BEVEL, 10.0f, new float[] { 1.0f, 1.0f }, 0.0f));
+
+  int id;
+
+  BasicStroke basicStroke;
+
+  private static int nextId = 0;
+
+  /**
+   * Constructor
+   * 
+   * @param id
+   * @param color
+   */
+  private SeriesLineStyle(int id, BasicStroke basicStroke) {
+
+    this.id = id;
+    this.basicStroke = basicStroke;
+  }
+
+  private static final Map<Integer, SeriesLineStyle> idLookup = new HashMap<Integer, SeriesLineStyle>();
+  static {
+    for (SeriesLineStyle seriesLineStyle : EnumSet.allOf(SeriesLineStyle.class)) {
+      idLookup.put(seriesLineStyle.getId(), seriesLineStyle);
+    }
+  }
+
+  private Integer getId() {
+
+    return id;
+  }
+
+  protected static void resetId() {
+
+    nextId = 0;
+  }
+
+  /**
+   * Get an AWT Stroke
+   * 
+   * @param seriesMarker
+   * @return
+   */
+  protected static BasicStroke getBasicStroke(SeriesLineStyle seriesMarker) {
+
+    return seriesMarker.basicStroke;
+  }
+
+  /**
+   * Gets the next Stroke
+   * 
+   * @return
+   */
+  protected static BasicStroke getNextBasicStroke() {
+
+    SeriesLineStyle seriesLineStyle = idLookup.get(nextId);
+    if (seriesLineStyle == null) {
+      // rotate thru from beginning
+      resetId();
+    }
+    return idLookup.get(nextId++).basicStroke;
+  }
+
+}
diff --git a/src/main/java/com/xeiam/xchart/SeriesMarker.java b/src/main/java/com/xeiam/xchart/SeriesMarker.java
new file mode 100644
index 0000000000000000000000000000000000000000..69edc8ee6d9df2f780df3ceb89b107a150355bbf
--- /dev/null
+++ b/src/main/java/com/xeiam/xchart/SeriesMarker.java
@@ -0,0 +1,102 @@
+/**
+ * Copyright 2011-2012 Xeiam LLC.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package com.xeiam.xchart;
+
+import java.util.EnumSet;
+import java.util.HashMap;
+import java.util.Map;
+
+import com.xeiam.xchart.internal.markers.Circle;
+import com.xeiam.xchart.internal.markers.Diamond;
+import com.xeiam.xchart.internal.markers.Marker;
+import com.xeiam.xchart.internal.markers.Square;
+import com.xeiam.xchart.internal.markers.TriangleDown;
+import com.xeiam.xchart.internal.markers.TriangleUp;
+
+/**
+ * Pre-defined Markers used for Series Lines
+ * 
+ * @author timmolter
+ */
+public enum SeriesMarker {
+
+  /** NONE */
+  NONE(-1, null),
+
+  /** CIRCLE */
+  CIRCLE(0, new Circle()),
+
+  /** DIAMOND */
+  DIAMOND(1, new Diamond()),
+
+  /** SQUARE */
+  SQUARE(2, new Square()),
+
+  /** TRIANGLE_DOWN */
+  TRIANGLE_DOWN(3, new TriangleDown()),
+
+  /** TRIANGLE_UP */
+  TRIANGLE_UP(4, new TriangleUp());
+
+  int id;
+  Marker marker;
+  private static int nextId = 0;
+
+  private static final Map<Integer, SeriesMarker> idLookup = new HashMap<Integer, SeriesMarker>();
+  static {
+    for (SeriesMarker seriesMarker : EnumSet.allOf(SeriesMarker.class)) {
+      idLookup.put(seriesMarker.getId(), seriesMarker);
+    }
+  }
+
+  private Integer getId() {
+
+    return id;
+  }
+
+  protected static void resetId() {
+
+    nextId = 0;
+  }
+
+  protected static Marker getMarker(SeriesMarker seriesMarker) {
+
+    return seriesMarker.marker;
+  }
+
+  protected static Marker getNextMarker() {
+
+    SeriesMarker seriesMarker = idLookup.get(nextId);
+    if (seriesMarker == null) {
+      // rotate thru from beginning
+      resetId();
+    }
+    return idLookup.get(nextId++).marker;
+  }
+
+  /**
+   * Constructor
+   * 
+   * @param id
+   * @param color
+   */
+  private SeriesMarker(int id, Marker marker) {
+
+    this.id = id;
+    this.marker = marker;
+  }
+
+}
diff --git a/src/main/java/com/xeiam/xchart/ServletEncoder.java b/src/main/java/com/xeiam/xchart/ServletEncoder.java
index d4d6e81067d2557e126976a063d5fade2dc9c6ba..d5bee0c23254cfd5e82160efc0c0686b5ac2faf4 100644
--- a/src/main/java/com/xeiam/xchart/ServletEncoder.java
+++ b/src/main/java/com/xeiam/xchart/ServletEncoder.java
@@ -23,6 +23,8 @@ import javax.imageio.ImageIO;
 import javax.servlet.ServletOutputStream;
 
 /**
+ * A helper class to be used in conjuction with a Servlet for streaming a Chart to an HTTP client
+ * 
  * @author timmolter
  */
 public class ServletEncoder {
diff --git a/src/main/java/com/xeiam/xchart/SwingWrapper.java b/src/main/java/com/xeiam/xchart/SwingWrapper.java
index 4e109e04edfbc20abf4758b146e8efa650ae8c8d..7805f879587c77babcf207e44f05c1189e1fd95c 100644
--- a/src/main/java/com/xeiam/xchart/SwingWrapper.java
+++ b/src/main/java/com/xeiam/xchart/SwingWrapper.java
@@ -23,6 +23,8 @@ import javax.swing.JFrame;
 import javax.swing.JPanel;
 
 /**
+ * A convenience class used to display a Chart in a barebones Swing application
+ * 
  * @author timmolter
  */
 public class SwingWrapper {
@@ -83,7 +85,7 @@ public class SwingWrapper {
         // Create and set up the window.
         JFrame frame = new JFrame("XChart");
         frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
-        JPanel chartPanel = new XChartJPanel(charts.get(0));
+        JPanel chartPanel = new XChartPanel(charts.get(0));
         frame.add(chartPanel);
 
         // Display the window.
@@ -112,7 +114,7 @@ public class SwingWrapper {
 
         for (Chart chart : charts) {
           if (chart != null) {
-            JPanel chartPanel = new XChartJPanel(chart);
+            JPanel chartPanel = new XChartPanel(chart);
             frame.add(chartPanel);
           } else {
             JPanel chartPanel = new JPanel();
diff --git a/src/main/java/com/xeiam/xchart/XChartPanel.java b/src/main/java/com/xeiam/xchart/XChartPanel.java
new file mode 100644
index 0000000000000000000000000000000000000000..c4842a5741ab8c05ac8bfda3e501a669eaf4bf7e
--- /dev/null
+++ b/src/main/java/com/xeiam/xchart/XChartPanel.java
@@ -0,0 +1,58 @@
+/**
+ * Copyright 2012 Xeiam LLC.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *    http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package com.xeiam.xchart;
+
+import java.awt.Dimension;
+import java.awt.Graphics;
+import java.awt.Graphics2D;
+
+import javax.swing.JPanel;
+
+/**
+ * A Swing JPanel that contains a Chart
+ * 
+ * @author timmolter
+ * @create Sep 9, 2012
+ */
+public class XChartPanel extends JPanel {
+
+  private final Chart chart;
+
+  /**
+   * Constructor
+   * 
+   * @param chart
+   */
+  public XChartPanel(final Chart chart) {
+
+    this.chart = chart;
+
+  }
+
+  @Override
+  protected void paintComponent(Graphics g) {
+
+    super.paintComponent(g);
+
+    chart.paint((Graphics2D) g, getWidth(), getHeight());
+  }
+
+  @Override
+  public Dimension getPreferredSize() {
+
+    return new Dimension(chart.width, chart.height);
+  }
+}
diff --git a/src/main/java/com/xeiam/xchart/internal/chartpart/Axis.java b/src/main/java/com/xeiam/xchart/internal/chartpart/Axis.java
new file mode 100644
index 0000000000000000000000000000000000000000..731049cd26a825191271c49247f451815baf0bf5
--- /dev/null
+++ b/src/main/java/com/xeiam/xchart/internal/chartpart/Axis.java
@@ -0,0 +1,235 @@
+/**
+ * Copyright 2011-2012 Xeiam LLC.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package com.xeiam.xchart.internal.chartpart;
+
+import java.awt.Graphics2D;
+import java.awt.Rectangle;
+import java.awt.font.FontRenderContext;
+import java.awt.font.TextLayout;
+import java.math.BigDecimal;
+
+import com.xeiam.xchart.Chart;
+import com.xeiam.xchart.internal.interfaces.IChartPart;
+
+/**
+ * Axis
+ * 
+ * @author timmolter
+ */
+public class Axis implements IChartPart {
+
+  public enum AxisType {
+
+    NUMBER, DATE;
+  }
+
+  /** parent */
+  protected AxisPair axisPair;
+
+  /** the axisType */
+  protected AxisType axisType;
+
+  /** the axis title */
+  public AxisTitle axisTitle;
+
+  /** the axis tick */
+  public AxisTick axisTick;
+
+  /** the axis direction */
+  protected Direction direction;
+
+  protected BigDecimal min = null;
+
+  protected BigDecimal max = null;
+
+  /** the bounds */
+  private Rectangle bounds;
+
+  /** the paint zone */
+  private Rectangle paintZone;
+
+  /** An axis direction */
+  protected enum Direction {
+
+    /** the constant to represent X axis */
+    X,
+
+    /** the constant to represent Y axis */
+    Y
+  }
+
+  /**
+   * Constructor
+   * 
+   * @param direction the axis direction (X or Y)
+   * @param chart the chart
+   */
+  protected Axis(AxisPair axisPair, Direction direction) {
+
+    this.axisPair = axisPair;
+    this.direction = direction;
+
+    axisTitle = new AxisTitle(this);
+    axisTick = new AxisTick(this);
+  }
+
+  /**
+   * @param min
+   * @param max
+   */
+  protected void addMinMax(BigDecimal min, BigDecimal max) {
+
+    // System.out.println(min);
+    // System.out.println(max);
+    if (this.min == null || min.compareTo(this.min) < 0) {
+      this.min = min;
+    }
+    if (this.max == null || max.compareTo(this.max) > 0) {
+      this.max = max;
+    }
+
+    // System.out.println(this.min);
+    // System.out.println(this.max);
+  }
+
+  protected void setAxisType(AxisType axisType) {
+
+    if (this.axisType != null && this.axisType != axisType) {
+      throw new IllegalArgumentException("Date and Number Axes cannot be mixed on the same chart!! ");
+    }
+    this.axisType = axisType;
+  }
+
+  @Override
+  public Rectangle getBounds() {
+
+    return bounds;
+  }
+
+  protected Rectangle getPaintZone() {
+
+    return paintZone;
+  }
+
+  public AxisTitle getAxisTitle() {
+
+    return axisTitle;
+  }
+
+  public void setAxisTitle(String title) {
+
+    this.axisTitle.setText(title);
+  }
+
+  protected void setAxisTitle(AxisTitle axisTitle) {
+
+    this.axisTitle = axisTitle;
+  }
+
+  /**
+   * @return
+   */
+  protected int getSizeHint() {
+
+    if (direction == Direction.X) { // X-Axis
+
+      // Axis title
+      double titleHeight = 0.0;
+      if (axisTitle.isVisible) {
+        TextLayout textLayout = new TextLayout(axisTitle.getText(), axisTitle.getFont(), new FontRenderContext(null, true, false));
+        Rectangle rectangle = textLayout.getPixelBounds(null, 0, 0);
+        titleHeight = rectangle.getHeight() + AxisTitle.AXIS_TITLE_PADDING;
+      }
+
+      // Axis tick labels
+      double axisTickLabelsHeight = 0.0;
+      if (axisTick.isVisible) {
+        TextLayout textLayout = new TextLayout("0", axisTick.axisTickLabels.font, new FontRenderContext(null, true, false));
+        Rectangle rectangle = textLayout.getPixelBounds(null, 0, 0);
+        axisTickLabelsHeight = rectangle.getHeight() + AxisTick.AXIS_TICK_PADDING + AxisTickMarks.TICK_LENGTH + Plot.PLOT_PADDING;
+      }
+      return (int) (titleHeight + axisTickLabelsHeight);
+    } else { // Y-Axis
+      return 0; // We layout the yAxis first depending in the xAxis height hint. We don't care about the yAxis height hint
+    }
+  }
+
+  @Override
+  public void paint(Graphics2D g) {
+
+    paintZone = new Rectangle();
+    bounds = new Rectangle();
+
+    // determine Axis bounds
+    if (direction == Direction.Y) { // Y-Axis
+
+      // calculate paint zone
+      // ----
+      // |
+      // |
+      // |
+      // |
+      // ----
+      int xOffset = Chart.CHART_PADDING;
+      int yOffset = (int) (axisPair.getChartTitleBounds().getY() + axisPair.getChartTitleBounds().getHeight() + Chart.CHART_PADDING);
+      int width = 80; // arbitrary, final width depends on Axis tick labels
+      int height = axisPair.chart.height - yOffset - axisPair.xAxis.getSizeHint() - Chart.CHART_PADDING;
+      Rectangle yAxisRectangle = new Rectangle(xOffset, yOffset, width, height);
+      this.paintZone = yAxisRectangle;
+      // g.setColor(Color.green);
+      // g.draw(yAxisRectangle);
+
+      // fill in Axis with sub-components
+      axisTitle.paint(g);
+      axisTick.paint(g);
+
+      xOffset = (int) paintZone.getX();
+      yOffset = (int) paintZone.getY();
+      width = (int) (axisTitle.isVisible ? axisTitle.getBounds().getWidth() : 0) + (int) axisTick.getBounds().getWidth();
+      height = (int) paintZone.getHeight();
+      bounds = new Rectangle(xOffset, yOffset, width, height);
+      // g.setColor(Color.yellow);
+      // g.draw(bounds);
+
+    } else { // X-Axis
+
+      // calculate paint zone
+      // |____________________|
+
+      int xOffset = (int) (axisPair.yAxis.getBounds().getWidth() + (axisPair.yAxis.axisTick.isVisible ? Plot.PLOT_PADDING : 0) + Chart.CHART_PADDING);
+      int yOffset = (int) (axisPair.yAxis.getBounds().getY() + axisPair.yAxis.getBounds().getHeight());
+      int width = (int) (axisPair.chart.width - axisPair.yAxis.getBounds().getWidth() - axisPair.getChartLegendBounds().getWidth() - (axisPair.chart.chartLegend.isVisible ? 3 : 2) * Chart.CHART_PADDING);
+      int height = this.getSizeHint();
+      Rectangle xAxisRectangle = new Rectangle(xOffset, yOffset, width, height);
+      this.paintZone = xAxisRectangle;
+      // g.setColor(Color.green);
+      // g.draw(xAxisRectangle);
+
+      axisTitle.paint(g);
+      axisTick.paint(g);
+
+      xOffset = (int) paintZone.getX();
+      yOffset = (int) paintZone.getY();
+      width = (int) paintZone.getWidth();
+      height = (int) ((axisTitle.isVisible ? axisTitle.getBounds().getHeight() : 0) + (int) axisTick.getBounds().getHeight());
+      bounds = new Rectangle(xOffset, yOffset, width, height);
+      bounds = new Rectangle(xOffset, yOffset, width, height);
+      // g.setColor(Color.yellow);
+      // g.draw(bounds);
+    }
+
+  }
+}
diff --git a/src/main/java/com/xeiam/xchart/internal/chartpart/AxisPair.java b/src/main/java/com/xeiam/xchart/internal/chartpart/AxisPair.java
new file mode 100644
index 0000000000000000000000000000000000000000..6ec16346c6178eaab2e5ab5f1672bd7118f5c600
--- /dev/null
+++ b/src/main/java/com/xeiam/xchart/internal/chartpart/AxisPair.java
@@ -0,0 +1,156 @@
+/**
+ * Copyright 2011-2012 Xeiam LLC.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package com.xeiam.xchart.internal.chartpart;
+
+import java.awt.Graphics2D;
+import java.awt.Rectangle;
+import java.util.ArrayList;
+import java.util.Collection;
+import java.util.Date;
+import java.util.Iterator;
+import java.util.LinkedHashMap;
+import java.util.Map;
+
+import com.xeiam.xchart.Chart;
+import com.xeiam.xchart.Series;
+import com.xeiam.xchart.internal.chartpart.Axis.AxisType;
+import com.xeiam.xchart.internal.interfaces.IChartPart;
+
+/**
+ * @author timmolter
+ */
+public class AxisPair implements IChartPart {
+
+  /** parent */
+  protected Chart chart;
+
+  public Map<Integer, Series> seriesMap = new LinkedHashMap<Integer, Series>();
+
+  private int seriesCount;
+
+  public Axis xAxis;
+  public Axis yAxis;
+
+  /**
+   * Constructor.
+   * 
+   * @param chart the chart
+   */
+  public AxisPair(Chart chart) {
+
+    this.chart = chart;
+    seriesCount = 0;
+
+    // add axes
+    xAxis = new Axis(this, Axis.Direction.X);
+    yAxis = new Axis(this, Axis.Direction.Y);
+  }
+
+  /**
+   * @param <T>
+   * @param xData
+   * @param yData
+   */
+  public <T> Series addSeries(String seriesName, Collection<T> xData, Collection<Number> yData, Collection<Number> errorBars) {
+
+    // Sanity checks
+    if (seriesName == null) {
+      throw new IllegalArgumentException("Series Name cannot be null!!!");
+    }
+    if (yData == null) {
+      throw new IllegalArgumentException("Y-Axis data cannot be null!!!");
+    }
+    if (yData.size() == 0) {
+      throw new IllegalArgumentException("Y-Axis data cannot be empty!!!");
+    }
+    if (xData != null && xData.size() == 0) {
+      throw new IllegalArgumentException("X-Axis data cannot be empty!!!");
+    }
+
+    Series series = null;
+    if (xData != null) {
+      // Check if xAxis series contains Number or Date data
+      Iterator<?> itr = xData.iterator();
+      Object dataPoint = itr.next();
+      if (dataPoint instanceof Number) {
+        xAxis.setAxisType(AxisType.NUMBER);
+      } else if (dataPoint instanceof Date) {
+        xAxis.setAxisType(AxisType.DATE);
+      }
+      yAxis.setAxisType(AxisType.NUMBER);
+      series = new Series(seriesName, xData, xAxis.axisType, yData, yAxis.axisType, errorBars);
+    } else { // generate xData
+      Collection<Number> generatedXData = new ArrayList<Number>();
+      for (int i = 1; i < yData.size(); i++) {
+        generatedXData.add(i);
+      }
+      xAxis.setAxisType(AxisType.NUMBER);
+      yAxis.setAxisType(AxisType.NUMBER);
+      series = new Series(seriesName, generatedXData, xAxis.axisType, yData, yAxis.axisType, errorBars);
+    }
+
+    // Sanity check
+    if (xData != null && xData.size() != yData.size()) {
+      throw new IllegalArgumentException("X and Y-Axis sizes are not the same!!! ");
+    }
+    if (errorBars != null && errorBars.size() != yData.size()) {
+      throw new IllegalArgumentException("errorbars and Y-Axis sizes are not the same!!! ");
+    }
+
+    seriesMap.put(seriesCount++, series);
+
+    // add min/max to axis
+    xAxis.addMinMax(series.xMin, series.xMax);
+    yAxis.addMinMax(series.yMin, series.yMax);
+
+    return series;
+  }
+
+  protected Rectangle getChartTitleBounds() {
+
+    return chart.chartTitle.getBounds();
+  }
+
+  protected Rectangle getChartLegendBounds() {
+
+    return chart.chartLegend.getBounds();
+  }
+
+  protected static int getTickSpace(int workingSpace) {
+
+    return (int) (workingSpace * 0.95);
+  }
+
+  protected static int getMargin(int workingSpace, int tickSpace) {
+
+    int marginSpace = workingSpace - tickSpace;
+    return (int) (marginSpace / 2.0);
+  }
+
+  @Override
+  public void paint(Graphics2D g) {
+
+    yAxis.paint(g);
+    xAxis.paint(g);
+  }
+
+  @Override
+  public Rectangle getBounds() {
+
+    return null; // should never be called
+  }
+
+}
diff --git a/src/main/java/com/xeiam/xchart/internal/chartpart/AxisTick.java b/src/main/java/com/xeiam/xchart/internal/chartpart/AxisTick.java
new file mode 100644
index 0000000000000000000000000000000000000000..39a5d568e473ffb7e54df5a57b2ede16fc4b009b
--- /dev/null
+++ b/src/main/java/com/xeiam/xchart/internal/chartpart/AxisTick.java
@@ -0,0 +1,280 @@
+/**
+ * Copyright 2011-2012 Xeiam LLC.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package com.xeiam.xchart.internal.chartpart;
+
+import java.awt.Graphics2D;
+import java.awt.Rectangle;
+import java.math.BigDecimal;
+import java.text.DecimalFormat;
+import java.text.NumberFormat;
+import java.text.SimpleDateFormat;
+import java.util.LinkedList;
+import java.util.List;
+import java.util.Locale;
+
+import com.xeiam.xchart.internal.chartpart.Axis.AxisType;
+import com.xeiam.xchart.internal.interfaces.IChartPart;
+import com.xeiam.xchart.internal.interfaces.IHideable;
+
+/**
+ * An axis tick.
+ */
+public class AxisTick implements IChartPart, IHideable {
+
+  /** the default tick mark step hint */
+  private static final int DEFAULT_TICK_MARK_STEP_HINT = 64;
+
+  /** the padding between the tick labels and the tick marks */
+  protected final static int AXIS_TICK_PADDING = 4;
+
+  /** parent */
+  protected Axis axis;
+
+  /** the axisticklabels */
+  public AxisTickLabels axisTickLabels;
+
+  /** the axistickmarks */
+  protected AxisTickMarks axisTickMarks;
+
+  /** the arraylist of tick label position in pixels */
+  protected List<Integer> tickLocations;
+
+  /** the arraylist of tick label values */
+  protected List<String> tickLabels;
+
+  private int workingSpace;
+
+  /** the Locale for Date tick labels */
+  public Locale locale;
+
+  public String normalDecimalPattern;
+  public String scientificDecimalPattern;
+  public String datePattern;
+
+  /** the bounds */
+  private Rectangle bounds;
+
+  /** the visibility state of axistick */
+  protected boolean isVisible = true; // default to true
+
+  /**
+   * Constructor
+   * 
+   * @param axis the axis
+   */
+  protected AxisTick(Axis axis) {
+
+    this.axis = axis;
+    axisTickLabels = new AxisTickLabels(this);
+    axisTickMarks = new AxisTickMarks(this);
+
+    // formatting
+    locale = Locale.getDefault();
+    normalDecimalPattern = "#.###";
+    scientificDecimalPattern = "0.###E0";
+    datePattern = "HHmmss";
+
+  }
+
+  @Override
+  public Rectangle getBounds() {
+
+    return bounds;
+  }
+
+  @Override
+  public void paint(Graphics2D g) {
+
+    bounds = new Rectangle();
+
+    if (axis.direction == Axis.Direction.Y) {
+      workingSpace = (int) axis.getPaintZone().getHeight(); // number of pixels the axis has to work with for drawing AxisTicks
+      // System.out.println("workingspace= " + workingSpace);
+    } else {
+      workingSpace = (int) axis.getPaintZone().getWidth(); // number of pixels the axis has to work with for drawing AxisTicks
+      // System.out.println("workingspace= " + workingSpace);
+    }
+
+    determineAxisTick();
+
+    // for (Integer position : tickLocations) {
+    // System.out.println(position);
+    // }
+    // for (String label : tickLabels) {
+    // System.out.println(label);
+    // }
+
+    if (isVisible) {
+      axisTickLabels.paint(g);
+      axisTickMarks.paint(g);
+
+      if (axis.direction == Axis.Direction.Y) {
+        bounds = new Rectangle((int) axisTickLabels.getBounds().getX(), (int) (axisTickLabels.getBounds().getY()),
+            (int) (axisTickLabels.getBounds().getWidth() + AXIS_TICK_PADDING + axisTickMarks.getBounds().getWidth()), (int) (axisTickMarks.getBounds().getHeight()));
+        // g.setColor(Color.red);
+        // g.draw(bounds);
+      } else {
+        bounds = new Rectangle((int) axisTickMarks.getBounds().getX(), (int) (axisTickMarks.getBounds().getY()), (int) axisTickLabels.getBounds().getWidth(), (int) (axisTickMarks.getBounds().getHeight()
+            + AXIS_TICK_PADDING + axisTickLabels.getBounds().getHeight()));
+        // g.setColor(Color.red);
+        // g.draw(bounds);
+      }
+    }
+
+  }
+
+  /**
+   * 
+   */
+  private void determineAxisTick() {
+
+    tickLocations = new LinkedList<Integer>();
+    tickLabels = new LinkedList<String>();
+
+    // System.out.println("workingSpace= " + workingSpace);
+
+    int tickSpace = AxisPair.getTickSpace(workingSpace);
+    // System.out.println("tickSpace= " + tickSpace);
+
+    int margin = AxisPair.getMargin(workingSpace, tickSpace);
+
+    // a check if all axis data are the exact same values
+    if (axis.max == axis.min) {
+      tickLabels.add(format(axis.max));
+      tickLocations.add((int) (margin + tickSpace / 2.0));
+    } else {
+
+      final BigDecimal min = new BigDecimal(axis.min.doubleValue());
+      BigDecimal firstPosition;
+      BigDecimal gridStep = getGridStep(tickSpace);
+
+      double xyz = min.remainder(gridStep).doubleValue();
+      if (xyz <= 0.0) {
+        firstPosition = min.subtract(min.remainder(gridStep));
+      } else {
+        firstPosition = min.subtract(min.remainder(gridStep)).add(gridStep);
+      }
+
+      for (BigDecimal b = firstPosition; b.compareTo(axis.max) <= 0; b = b.add(gridStep)) {
+
+        // System.out.println("b= " + b);
+        tickLabels.add(format(b));
+        int tickLabelPosition = (int) (margin + ((b.subtract(axis.min)).doubleValue() / (axis.max.subtract(axis.min)).doubleValue() * tickSpace));
+        // System.out.println("tickLabelPosition= " + tickLabelPosition);
+
+        tickLocations.add(tickLabelPosition);
+      }
+    }
+  }
+
+  private BigDecimal getGridStep(int tickSpace) {
+
+    double length = Math.abs(axis.max.subtract(axis.min).doubleValue());
+    // System.out.println(axis.getMax());
+    // System.out.println(axis.min);
+    // System.out.println(length);
+    double gridStepHint = length / tickSpace * DEFAULT_TICK_MARK_STEP_HINT;
+
+    // gridStepHint --> mantissa * 10 ** exponent
+    // e.g. 724.1 --> 7.241 * 10 ** 2
+    double mantissa = gridStepHint;
+    int exponent = 0;
+    if (mantissa == 0) {
+      exponent = 1;
+    } else if (mantissa < 1) {
+      while (mantissa < 1) {
+        mantissa *= 10.0;
+        exponent--;
+      }
+    } else {
+      while (mantissa >= 10) {
+        mantissa /= 10.0;
+        exponent++;
+      }
+    }
+
+    // calculate the grid step with hint.
+    BigDecimal gridStep;
+    if (mantissa > 7.5) {
+      // gridStep = 10.0 * 10 ** exponent
+      gridStep = BigDecimal.TEN.multiply(pow(10, exponent));
+    } else if (mantissa > 3.5) {
+      // gridStep = 5.0 * 10 ** exponent
+      gridStep = new BigDecimal(new Double(5).toString()).multiply(pow(10, exponent));
+    } else if (mantissa > 1.5) {
+      // gridStep = 2.0 * 10 ** exponent
+      gridStep = new BigDecimal(new Double(2).toString()).multiply(pow(10, exponent));
+    } else {
+      // gridStep = 1.0 * 10 ** exponent
+      gridStep = pow(10, exponent);
+    }
+    return gridStep;
+  }
+
+  /**
+   * Calculates the value of the first argument raised to the power of the second argument.
+   * 
+   * @param base the base
+   * @param exponent the exponent
+   * @return the value <tt>a<sup>b</sup></tt> in <tt>BigDecimal</tt>
+   */
+  private BigDecimal pow(double base, int exponent) {
+
+    BigDecimal value;
+    if (exponent > 0) {
+      value = new BigDecimal(new Double(base).toString()).pow(exponent);
+    } else {
+      value = BigDecimal.ONE.divide(new BigDecimal(new Double(base).toString()).pow(-exponent));
+    }
+    return value;
+  }
+
+  private String format(BigDecimal value) {
+
+    if (axis.axisType == AxisType.NUMBER) {
+
+      NumberFormat nf = NumberFormat.getNumberInstance(locale);
+
+      if (Math.abs(value.doubleValue()) <= 9999 && Math.abs(value.doubleValue()) > .0001 || value.doubleValue() == 0) {
+
+        DecimalFormat normalFormat = (DecimalFormat) nf;
+        normalFormat.applyPattern(normalDecimalPattern);
+        return normalFormat.format(value.doubleValue());
+
+      } else {
+
+        DecimalFormat scientificFormat = (DecimalFormat) nf;
+        scientificFormat.applyPattern(scientificDecimalPattern);
+        return scientificFormat.format(value.doubleValue());
+
+      }
+    } else {
+
+      // TODO set this more intelligently
+      SimpleDateFormat simpleDateformat = new SimpleDateFormat(datePattern, locale);
+      simpleDateformat.applyPattern(datePattern);
+      return simpleDateformat.format(value.longValueExact());
+
+    }
+
+  }
+
+  @Override
+  public void setVisible(boolean isVisible) {
+
+    this.isVisible = isVisible;
+  }
+}
diff --git a/src/main/java/com/xeiam/xchart/internal/chartpart/AxisTickLabels.java b/src/main/java/com/xeiam/xchart/internal/chartpart/AxisTickLabels.java
new file mode 100644
index 0000000000000000000000000000000000000000..ef66f9915ab60c9e82ed68c3da3281e4bc461fcf
--- /dev/null
+++ b/src/main/java/com/xeiam/xchart/internal/chartpart/AxisTickLabels.java
@@ -0,0 +1,118 @@
+/**
+ * Copyright 2011-2012 Xeiam LLC.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package com.xeiam.xchart.internal.chartpart;
+
+import java.awt.Font;
+import java.awt.Graphics2D;
+import java.awt.Rectangle;
+import java.awt.font.FontRenderContext;
+import java.awt.font.TextLayout;
+
+import com.xeiam.xchart.internal.interfaces.IChartPart;
+
+/**
+ * Axis tick labels
+ */
+public class AxisTickLabels implements IChartPart {
+
+  /** parent */
+  private AxisTick axisTick;
+
+  /** the font */
+  public Font font;
+
+  /** the bounds */
+  private Rectangle bounds;
+
+  /**
+   * Constructor
+   * 
+   * @param axisTick
+   */
+  protected AxisTickLabels(AxisTick axisTick) {
+
+    this.axisTick = axisTick;
+    font = new Font(Font.SANS_SERIF, Font.BOLD, 12); // default font
+  }
+
+  @Override
+  public Rectangle getBounds() {
+
+    return bounds;
+  }
+
+  @Override
+  public void paint(Graphics2D g) {
+
+    bounds = new Rectangle();
+
+    g.setColor(axisTick.axis.axisPair.chart.fontColor);
+
+    if (axisTick.axis.direction == Axis.Direction.Y) { // Y-Axis
+
+      int xOffset = (int) (axisTick.axis.getAxisTitle().getBounds().getX() + axisTick.axis.getAxisTitle().getBounds().getWidth());
+      int yOffset = (int) (axisTick.axis.getPaintZone().getY());
+      int maxTickLabelWidth = 0;
+      for (int i = 0; i < axisTick.tickLabels.size(); i++) {
+
+        String tickLabel = axisTick.tickLabels.get(i);
+        int tickLocation = axisTick.tickLocations.get(i);
+
+        FontRenderContext frc = g.getFontRenderContext();
+        // TextLayout layout = new TextLayout(tickLabel, font, new FontRenderContext(null, true, false));
+        TextLayout layout = new TextLayout(tickLabel, font, frc);
+        Rectangle tickLabelBounds = layout.getPixelBounds(null, 0, 0);
+        layout.draw(g, xOffset, (int) (yOffset + axisTick.axis.getPaintZone().getHeight() - tickLocation + tickLabelBounds.getHeight() / 2.0));
+
+        if (tickLabelBounds.getWidth() > maxTickLabelWidth) {
+          maxTickLabelWidth = (int) tickLabelBounds.getWidth();
+        }
+      }
+
+      // bounds
+      bounds = new Rectangle(xOffset, yOffset, maxTickLabelWidth, (int) axisTick.axis.getPaintZone().getHeight());
+      // g.setColor(Color.blue);
+      // g.draw(bounds);
+
+    } else { // X-Axis
+
+      int xOffset = (int) (axisTick.axis.getPaintZone().getX());
+      int yOffset = (int) (axisTick.axis.getAxisTitle().getBounds().getY());
+      int maxTickLabelHeight = 0;
+      for (int i = 0; i < axisTick.tickLabels.size(); i++) {
+
+        String tickLabel = axisTick.tickLabels.get(i);
+        int tickLocation = axisTick.tickLocations.get(i);
+
+        FontRenderContext frc = g.getFontRenderContext();
+        TextLayout layout = new TextLayout(tickLabel, font, frc);
+        Rectangle tickLabelBounds = layout.getPixelBounds(null, 0, 0);
+        layout.draw(g, (int) (xOffset + tickLocation - tickLabelBounds.getWidth() / 2.0), yOffset);
+
+        if (tickLabelBounds.getHeight() > maxTickLabelHeight) {
+          maxTickLabelHeight = (int) tickLabelBounds.getHeight();
+        }
+      }
+
+      // bounds
+      bounds = new Rectangle(xOffset, yOffset - maxTickLabelHeight, (int) axisTick.axis.getPaintZone().getWidth(), maxTickLabelHeight);
+      // g.setColor(Color.blue);
+      // g.draw(bounds);
+
+    }
+
+  }
+}
diff --git a/src/main/java/com/xeiam/xchart/internal/chartpart/AxisTickMarks.java b/src/main/java/com/xeiam/xchart/internal/chartpart/AxisTickMarks.java
new file mode 100644
index 0000000000000000000000000000000000000000..30e29ca9f97da3f71d2f0949c80ebebb73821807
--- /dev/null
+++ b/src/main/java/com/xeiam/xchart/internal/chartpart/AxisTickMarks.java
@@ -0,0 +1,113 @@
+/**
+ * Copyright 2011-2012 Xeiam LLC.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package com.xeiam.xchart.internal.chartpart;
+
+import java.awt.BasicStroke;
+import java.awt.Graphics2D;
+import java.awt.Rectangle;
+import java.awt.Stroke;
+
+import com.xeiam.xchart.internal.interfaces.IChartPart;
+
+/**
+ * Axis tick marks.
+ */
+public class AxisTickMarks implements IChartPart {
+
+  /** the tick length */
+  public static final int TICK_LENGTH = 3;
+
+  /** parent */
+  private AxisTick axisTick;
+
+  /** the line style */
+  private Stroke stroke = new BasicStroke(1, BasicStroke.CAP_BUTT, BasicStroke.JOIN_BEVEL);
+
+  /** the bounds */
+  private Rectangle bounds;
+
+  /**
+   * Constructor
+   * 
+   * @param axisTick
+   */
+  protected AxisTickMarks(AxisTick axisTick) {
+
+    this.axisTick = axisTick;
+  }
+
+  @Override
+  public Rectangle getBounds() {
+
+    return bounds;
+  }
+
+  @Override
+  public void paint(Graphics2D g) {
+
+    bounds = new Rectangle();
+
+    g.setColor(axisTick.axis.axisPair.chart.bordersColor);
+
+    if (axisTick.axis.direction == Axis.Direction.Y) { // Y-Axis
+
+      int xOffset = (int) (axisTick.axisTickLabels.getBounds().getX() + axisTick.axisTickLabels.getBounds().getWidth() + AxisTick.AXIS_TICK_PADDING);
+      int yOffset = (int) (axisTick.axis.getPaintZone().getY());
+
+      // tick marks
+      for (int i = 0; i < axisTick.tickLabels.size(); i++) {
+
+        int tickLocation = axisTick.tickLocations.get(i);
+
+        g.setColor(axisTick.axis.axisPair.chart.bordersColor);
+        g.setStroke(stroke);
+
+        g.drawLine(xOffset, yOffset + (int) (axisTick.axis.getPaintZone().getHeight() - tickLocation), xOffset + TICK_LENGTH, yOffset + (int) (axisTick.axis.getPaintZone().getHeight() - tickLocation));
+
+      }
+      // Line
+      g.drawLine(xOffset + TICK_LENGTH, yOffset, xOffset + TICK_LENGTH, yOffset + (int) axisTick.axis.getPaintZone().getHeight());
+
+      // bounds
+      bounds = new Rectangle(xOffset, yOffset, TICK_LENGTH, (int) axisTick.axis.getPaintZone().getHeight());
+      // g.setColor(Color.yellow);
+      // g.draw(bounds);
+
+    } else { // X-Axis
+
+      int xOffset = (int) (axisTick.axis.getPaintZone().getX());
+      int yOffset = (int) (axisTick.axisTickLabels.getBounds().getY() - AxisTick.AXIS_TICK_PADDING);
+
+      // tick marks
+      for (int i = 0; i < axisTick.tickLabels.size(); i++) {
+
+        int tickLocation = axisTick.tickLocations.get(i);
+
+        g.setColor(axisTick.axis.axisPair.chart.bordersColor);
+        g.setStroke(stroke);
+
+        g.drawLine(xOffset + tickLocation, yOffset, xOffset + tickLocation, yOffset - TICK_LENGTH);
+      }
+      // Line
+      g.drawLine(xOffset, yOffset - TICK_LENGTH, xOffset + (int) axisTick.axis.getPaintZone().getWidth(), yOffset - TICK_LENGTH);
+
+      // bounds
+      bounds = new Rectangle(xOffset, yOffset - TICK_LENGTH, (int) axisTick.axis.getPaintZone().getWidth(), TICK_LENGTH);
+      // g.setColor(Color.yellow);
+      // g.draw(bounds);
+    }
+  }
+}
diff --git a/src/main/java/com/xeiam/xchart/internal/chartpart/AxisTitle.java b/src/main/java/com/xeiam/xchart/internal/chartpart/AxisTitle.java
new file mode 100644
index 0000000000000000000000000000000000000000..e52fef2b196044c17fadd9bf5f1906e2fe880632
--- /dev/null
+++ b/src/main/java/com/xeiam/xchart/internal/chartpart/AxisTitle.java
@@ -0,0 +1,151 @@
+/**
+ * Copyright 2011-2012 Xeiam LLC.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package com.xeiam.xchart.internal.chartpart;
+
+import java.awt.Font;
+import java.awt.Graphics2D;
+import java.awt.Rectangle;
+import java.awt.font.FontRenderContext;
+import java.awt.font.TextLayout;
+import java.awt.geom.AffineTransform;
+
+import com.xeiam.xchart.internal.interfaces.IChartPart;
+import com.xeiam.xchart.internal.interfaces.IHideable;
+
+/**
+ * AxisTitle
+ */
+public class AxisTitle implements IChartPart, IHideable {
+
+  protected final static int AXIS_TITLE_PADDING = 10;
+
+  /** parent */
+  private Axis axis;
+
+  /** the title text */
+  protected String text = ""; // default to ""
+
+  /** the visibility state of title */
+  protected boolean isVisible = false; // default to false, set true if text is set
+
+  /** the font */
+  public Font font;
+
+  /** the bounds */
+  private Rectangle bounds;
+
+  /**
+   * Constructor.
+   * 
+   * @param axis the axis
+   */
+  protected AxisTitle(Axis axis) {
+
+    this.axis = axis;
+    font = new Font(Font.SANS_SERIF, Font.BOLD, 12); // default font
+  }
+
+  protected String getText() {
+
+    return text;
+  }
+
+  protected void setText(String text) {
+
+    if (text.trim().equalsIgnoreCase("")) {
+      this.isVisible = false;
+    } else {
+      this.isVisible = true;
+    }
+    this.text = text;
+  }
+
+  protected Font getFont() {
+
+    return font;
+  }
+
+  @Override
+  public void setVisible(boolean isVisible) {
+
+    this.isVisible = isVisible;
+  }
+
+  @Override
+  public Rectangle getBounds() {
+
+    return bounds;
+  }
+
+  @Override
+  public void paint(Graphics2D g) {
+
+    bounds = new Rectangle();
+
+    g.setColor(axis.axisPair.chart.fontColor);
+
+    if (axis.direction == Axis.Direction.Y) {
+      if (isVisible) {
+
+        FontRenderContext frc = g.getFontRenderContext();
+        TextLayout nonRotatedTextLayout = new TextLayout(text, font, frc);
+        Rectangle nonRotatedRectangle = nonRotatedTextLayout.getPixelBounds(null, 0, 0);
+        // System.out.println(nonRotatedRectangle);
+
+        TextLayout rotatedTextLayout = new TextLayout(text, font.deriveFont(AffineTransform.getRotateInstance(Math.PI / -2.0, 0, 0)), frc);
+        // Rectangle rotatedRectangle = rotatedTextLayout.getPixelBounds(null, 0, 0);
+        // System.out.println(rotatedRectangle);
+
+        int xOffset = (int) (axis.getPaintZone().getX() + nonRotatedRectangle.getHeight());
+        int yOffset = (int) ((axis.getPaintZone().getHeight() + nonRotatedRectangle.getWidth()) / 2.0 + axis.getPaintZone().getY());
+        rotatedTextLayout.draw(g, xOffset, yOffset);
+
+        // bounds
+        bounds = new Rectangle((int) (xOffset - nonRotatedRectangle.getHeight()), (int) (yOffset - nonRotatedRectangle.getWidth()), (int) nonRotatedRectangle.getHeight() + AXIS_TITLE_PADDING,
+            (int) nonRotatedRectangle.getWidth());
+        // g.setColor(Color.blue);
+        // g.draw(bounds);
+      } else {
+        bounds = new Rectangle((int) axis.getPaintZone().getX(), (int) axis.getPaintZone().getY(), 0, (int) axis.getPaintZone().getHeight());
+      }
+
+    } else {
+
+      if (isVisible) {
+
+        FontRenderContext frc = g.getFontRenderContext();
+        TextLayout textLayout = new TextLayout(text, font, frc);
+        Rectangle rectangle = textLayout.getPixelBounds(null, 0, 0);
+        // System.out.println(rectangle);
+
+        int xOffset = (int) (axis.getPaintZone().getX() + (axis.getPaintZone().getWidth() - rectangle.getWidth()) / 2.0);
+        int yOffset = (int) (axis.getPaintZone().getY() + axis.getPaintZone().getHeight() - rectangle.getHeight());
+
+        textLayout.draw(g, xOffset, (float) (yOffset - rectangle.getY()));
+
+        bounds = new Rectangle(xOffset, yOffset - AXIS_TITLE_PADDING, (int) rectangle.getWidth(), (int) rectangle.getHeight() + AXIS_TITLE_PADDING);
+        // g.setColor(Color.blue);
+        // g.draw(bounds);
+
+      } else {
+        bounds = new Rectangle((int) axis.getPaintZone().getX(), (int) (axis.getPaintZone().getY() + axis.getPaintZone().getHeight()), (int) axis.getPaintZone().getWidth(), 0);
+        // g.setColor(Color.blue);
+        // g.draw(bounds);
+
+      }
+    }
+  }
+}
diff --git a/src/main/java/com/xeiam/xchart/internal/chartpart/ChartTitle.java b/src/main/java/com/xeiam/xchart/internal/chartpart/ChartTitle.java
new file mode 100644
index 0000000000000000000000000000000000000000..3b38c746279436a974f625a118aabe5d87c0039f
--- /dev/null
+++ b/src/main/java/com/xeiam/xchart/internal/chartpart/ChartTitle.java
@@ -0,0 +1,103 @@
+/**
+ * Copyright 2011-2012 Xeiam LLC.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package com.xeiam.xchart.internal.chartpart;
+
+import java.awt.Font;
+import java.awt.Graphics2D;
+import java.awt.Rectangle;
+import java.awt.font.FontRenderContext;
+import java.awt.font.TextLayout;
+
+import com.xeiam.xchart.Chart;
+import com.xeiam.xchart.internal.interfaces.IChartPart;
+import com.xeiam.xchart.internal.interfaces.IHideable;
+
+/**
+ * Chart Title
+ */
+public class ChartTitle implements IChartPart, IHideable {
+
+  /** parent */
+  private Chart chart;
+
+  /** the title text */
+  protected String text = ""; // default to ""
+
+  /** the visibility state of title */
+  protected boolean isVisible = false; // default to false
+
+  /** the font */
+  public Font font;
+
+  /** the bounds */
+  private Rectangle bounds;
+
+  /**
+   * Constructor
+   * 
+   * @param chart
+   */
+  public ChartTitle(Chart chart) {
+
+    this.chart = chart;
+    font = new Font(Font.SANS_SERIF, Font.BOLD, 14); // default font
+  }
+
+  public void setText(String text) {
+
+    if (text.trim().equalsIgnoreCase("")) {
+      this.isVisible = false;
+    } else {
+      this.isVisible = true;
+    }
+    this.text = text;
+  }
+
+  @Override
+  public void setVisible(boolean isVisible) {
+
+    this.isVisible = isVisible;
+  }
+
+  @Override
+  public void paint(Graphics2D g) {
+
+    bounds = new Rectangle();
+
+    if (isVisible) {
+
+      FontRenderContext frc = g.getFontRenderContext();
+      TextLayout textLayout = new TextLayout(text, font, frc);
+      Rectangle rectangle = textLayout.getPixelBounds(null, 0, 0);
+      int xOffset = (int) ((chart.width - rectangle.getWidth()) / 2.0);
+      int yOffset = (int) ((isVisible ? (Chart.CHART_PADDING - rectangle.getY()) : 0));
+
+      bounds = new Rectangle(xOffset, yOffset + (isVisible ? (int) rectangle.getY() : 0), (int) rectangle.getWidth(), (int) (isVisible ? rectangle.getHeight() : 0));
+      // g.setColor(Color.green);
+      // g.draw(bounds);
+
+      g.setColor(chart.fontColor);
+      textLayout.draw(g, xOffset, yOffset);
+    }
+
+  }
+
+  @Override
+  public Rectangle getBounds() {
+
+    return bounds;
+  }
+}
\ No newline at end of file
diff --git a/src/main/java/com/xeiam/xchart/internal/chartpart/Legend.java b/src/main/java/com/xeiam/xchart/internal/chartpart/Legend.java
new file mode 100644
index 0000000000000000000000000000000000000000..984b8d41d88d389504c3a7783914d9293e911824
--- /dev/null
+++ b/src/main/java/com/xeiam/xchart/internal/chartpart/Legend.java
@@ -0,0 +1,156 @@
+/**
+ * Copyright 2011-2012 Xeiam LLC.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package com.xeiam.xchart.internal.chartpart;
+
+import java.awt.Color;
+import java.awt.Font;
+import java.awt.Graphics2D;
+import java.awt.Rectangle;
+import java.awt.font.FontRenderContext;
+import java.awt.font.TextLayout;
+import java.util.Map;
+
+import com.xeiam.xchart.Chart;
+import com.xeiam.xchart.ChartColor;
+import com.xeiam.xchart.Series;
+import com.xeiam.xchart.internal.interfaces.IChartPart;
+import com.xeiam.xchart.internal.interfaces.IHideable;
+import com.xeiam.xchart.internal.markers.Marker;
+
+/**
+ * @author timmolter
+ */
+public class Legend implements IChartPart, IHideable {
+
+  private static final int LEGEND_PADDING = 10;
+
+  /** parent */
+  private Chart chart;
+
+  /** the visibility state of legend */
+  protected boolean isVisible = true; // default to true
+
+  /** the font */
+  public Font font;
+
+  /** the background color */
+  public Color backgroundColor;
+
+  /** the bounds */
+  private Rectangle bounds;
+
+  /**
+   * Constructor
+   * 
+   * @param chart
+   */
+  public Legend(Chart chart) {
+
+    this.chart = chart;
+    backgroundColor = ChartColor.getAWTColor(ChartColor.LIGHT_GREY); // default background color
+    font = new Font(Font.SANS_SERIF, Font.PLAIN, 11); // default font
+  }
+
+  @Override
+  public void setVisible(boolean isVisible) {
+
+    this.isVisible = isVisible;
+  }
+
+  @Override
+  public void paint(Graphics2D g) {
+
+    bounds = new Rectangle();
+
+    if (isVisible) {
+
+      Map<Integer, Series> seriesMap = chart.axisPair.seriesMap;
+
+      // determine legend text content max width
+      int legendTextContentMaxWidth = 0;
+      int legendTextContentMaxHeight = 0;
+
+      for (Integer seriesId : seriesMap.keySet()) {
+        Series series = seriesMap.get(seriesId);
+        TextLayout textLayout = new TextLayout(series.name, font, new FontRenderContext(null, true, false));
+        Rectangle rectangle = textLayout.getPixelBounds(null, 0, 0);
+        // System.out.println(rectangle);
+        if (rectangle.getWidth() > legendTextContentMaxWidth) {
+          legendTextContentMaxWidth = (int) rectangle.getWidth();
+        }
+        if (rectangle.getHeight() > legendTextContentMaxHeight) {
+          legendTextContentMaxHeight = (int) rectangle.getHeight();
+        }
+      }
+
+      // determine legend content height
+      int legendContentHeight = 0;
+      int maxContentHeight = Math.max(legendTextContentMaxHeight, Marker.SIZE);
+      legendContentHeight = maxContentHeight * seriesMap.size() + LEGEND_PADDING * (seriesMap.size() - 1);
+
+      // determine legend content width
+      int legendContentWidth = (int) (3.0 * Marker.SIZE + LEGEND_PADDING + legendTextContentMaxWidth);
+
+      // Draw Legend Box
+      int legendBoxWidth = legendContentWidth + 2 * LEGEND_PADDING;
+      int legendBoxHeight = legendContentHeight + 2 * LEGEND_PADDING;
+      int xOffset = chart.width - legendBoxWidth - Chart.CHART_PADDING;
+      int yOffset = (int) ((chart.height - legendBoxHeight) / 2.0 + chart.chartTitle.getBounds().getY() + chart.chartTitle.getBounds().getHeight());
+
+      g.setColor(chart.bordersColor);
+      g.drawRect(xOffset, yOffset, legendBoxWidth, legendBoxHeight);
+      g.setColor(backgroundColor);
+      g.fillRect(xOffset + 1, yOffset + 1, legendBoxWidth - 1, legendBoxHeight - 1);
+
+      // Draw legend content inside legend box
+      int startx = xOffset + LEGEND_PADDING;
+      int starty = yOffset + LEGEND_PADDING;
+      for (Integer seriesId : seriesMap.keySet()) {
+        Series series = seriesMap.get(seriesId);
+        // paint line
+        if (series.stroke != null) {
+          g.setColor(series.strokeColor);
+          g.setStroke(series.stroke);
+          g.drawLine(startx, starty - Marker.Y_OFFSET, (int) (startx + Marker.SIZE * 3.0), starty - Marker.Y_OFFSET);
+        }
+        // paint marker
+        if (series.marker != null) {
+          g.setColor(series.markerColor);
+          series.marker.paint(g, (int) (startx + (Marker.SIZE * 1.5)), starty - Marker.Y_OFFSET);
+        }
+
+        // paint series name
+        g.setColor(chart.fontColor);
+        TextLayout layout = new TextLayout(series.name, font, new FontRenderContext(null, true, false));
+        layout.draw(g, (float) (startx + Marker.SIZE + (Marker.SIZE * 1.5) + LEGEND_PADDING), (starty + Marker.SIZE));
+        starty = starty + legendTextContentMaxHeight + LEGEND_PADDING;
+      }
+
+      // bounds
+      bounds = new Rectangle(xOffset, yOffset, legendBoxWidth, legendBoxHeight);
+      // g.setColor(Color.blue);
+      // g.draw(bounds);
+    }
+
+  }
+
+  @Override
+  public Rectangle getBounds() {
+
+    return bounds;
+  }
+
+}
diff --git a/src/main/java/com/xeiam/xchart/internal/chartpart/Plot.java b/src/main/java/com/xeiam/xchart/internal/chartpart/Plot.java
new file mode 100644
index 0000000000000000000000000000000000000000..2713239afb1d0711a790f8bb66a25f4ec10f741a
--- /dev/null
+++ b/src/main/java/com/xeiam/xchart/internal/chartpart/Plot.java
@@ -0,0 +1,73 @@
+/**
+ * Copyright 2011-2012 Xeiam LLC.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package com.xeiam.xchart.internal.chartpart;
+
+import java.awt.Graphics2D;
+import java.awt.Rectangle;
+
+import com.xeiam.xchart.Chart;
+import com.xeiam.xchart.internal.interfaces.IChartPart;
+
+/**
+ * @author timmolter
+ */
+public class Plot implements IChartPart {
+
+  /** parent */
+  protected Chart chart;
+
+  public PlotSurface plotSurface;
+
+  protected PlotContent plotContent;
+
+  public static final int PLOT_PADDING = 3;
+
+  /** the bounds */
+  private Rectangle bounds;
+
+  public Plot(Chart chart) {
+
+    this.chart = chart;
+    this.plotSurface = new PlotSurface(this);
+    this.plotContent = new PlotContent(this);
+  }
+
+  @Override
+  public Rectangle getBounds() {
+
+    return bounds;
+  }
+
+  @Override
+  public void paint(Graphics2D g) {
+
+    bounds = new Rectangle();
+
+    // calculate bounds
+    int xOffset = (int) (chart.axisPair.yAxis.getBounds().getX() + chart.axisPair.yAxis.getBounds().getWidth() + (chart.axisPair.yAxis.axisTick.isVisible ? (Plot.PLOT_PADDING + 1) : 0));
+    int yOffset = (int) (chart.axisPair.yAxis.getBounds().getY());
+    int width = (int) chart.axisPair.xAxis.getBounds().getWidth();
+    int height = (int) chart.axisPair.yAxis.getBounds().getHeight();
+    bounds = new Rectangle(xOffset, yOffset, width, height);
+    // g.setColor(Color.green);
+    // g.draw(bounds);
+
+    plotSurface.paint(g);
+    plotContent.paint(g);
+
+  }
+
+}
diff --git a/src/main/java/com/xeiam/xchart/internal/chartpart/PlotContent.java b/src/main/java/com/xeiam/xchart/internal/chartpart/PlotContent.java
new file mode 100644
index 0000000000000000000000000000000000000000..16a3d68dbd185f3758d6fda80fc5e3c3af976ab7
--- /dev/null
+++ b/src/main/java/com/xeiam/xchart/internal/chartpart/PlotContent.java
@@ -0,0 +1,162 @@
+/**
+ * Copyright 2011-2012 Xeiam LLC.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package com.xeiam.xchart.internal.chartpart;
+
+import java.awt.BasicStroke;
+import java.awt.Graphics2D;
+import java.awt.Rectangle;
+import java.math.BigDecimal;
+import java.util.Collection;
+import java.util.Date;
+import java.util.Iterator;
+import java.util.Map;
+
+import com.xeiam.xchart.Series;
+import com.xeiam.xchart.internal.chartpart.Axis.AxisType;
+import com.xeiam.xchart.internal.interfaces.IChartPart;
+
+/**
+ * @author timmolter
+ */
+public class PlotContent implements IChartPart {
+
+  /** parent */
+  private Plot plot;
+
+  /**
+   * Constructor
+   * 
+   * @param plot
+   */
+  protected PlotContent(Plot plot) {
+
+    this.plot = plot;
+  }
+
+  @Override
+  public Rectangle getBounds() {
+
+    return plot.getBounds();
+  }
+
+  @Override
+  public void paint(Graphics2D g) {
+
+    Rectangle bounds = plot.getBounds();
+
+    Map<Integer, Series> seriesMap = plot.chart.axisPair.seriesMap;
+    for (Integer seriesId : seriesMap.keySet()) {
+
+      Series series = seriesMap.get(seriesId);
+
+      // X-Axis
+      int xTickSpace = AxisPair.getTickSpace((int) bounds.getWidth());
+      int xLeftMargin = AxisPair.getMargin((int) bounds.getWidth(), xTickSpace);
+
+      // Y-Axis
+      int yTickSpace = AxisPair.getTickSpace((int) bounds.getHeight());
+      int yTopMargin = AxisPair.getMargin((int) bounds.getHeight(), yTickSpace);
+
+      // data points
+      Collection<?> xData = series.xData;
+      BigDecimal xMin = plot.chart.axisPair.xAxis.min;
+      BigDecimal xMax = plot.chart.axisPair.xAxis.max;
+      Collection<Number> yData = series.yData;
+      BigDecimal yMin = plot.chart.axisPair.yAxis.min;
+      BigDecimal yMax = plot.chart.axisPair.yAxis.max;
+      Collection<Number> errorBars = series.errorBars;
+
+      int previousX = Integer.MIN_VALUE;
+      int previousY = Integer.MIN_VALUE;
+
+      Iterator<?> xItr = xData.iterator();
+      Iterator<Number> yItr = yData.iterator();
+      Iterator<Number> ebItr = null;
+      if (errorBars != null) {
+        ebItr = errorBars.iterator();
+      }
+      while (xItr.hasNext()) {
+
+        BigDecimal x = null;
+        if (plot.chart.axisPair.xAxis.axisType == AxisType.NUMBER) {
+          x = new BigDecimal(((Number) xItr.next()).doubleValue());
+        }
+        if (plot.chart.axisPair.xAxis.axisType == AxisType.DATE) {
+          x = new BigDecimal(((Date) xItr.next()).getTime());
+          // System.out.println(x);
+        }
+
+        BigDecimal y = new BigDecimal(yItr.next().doubleValue());
+        // System.out.println(y);
+        double eb = 0.0;
+        if (errorBars != null) {
+          eb = ebItr.next().doubleValue();
+        }
+
+        // int xTransform = (int) (xLeftMargin + ((x - xMin) / (xMax - xMin) * xTickSpace));
+        int xTransform = (int) (xLeftMargin + (x.subtract(xMin).doubleValue() / xMax.subtract(xMin).doubleValue() * xTickSpace));
+        // int yTransform = (int) (bounds.getHeight() - (yTopMargin + (y - yMin) / (yMax - yMin) * yTickSpace));
+        int yTransform = (int) (bounds.getHeight() - (yTopMargin + y.subtract(yMin).doubleValue() / yMax.subtract(yMin).doubleValue() * yTickSpace));
+
+        // a check if all y data are the exact same values
+        if (Math.abs(xMax.subtract(xMin).doubleValue()) / 5 == 0.0) {
+          xTransform = (int) (bounds.getWidth() / 2.0);
+        }
+
+        // a check if all y data are the exact same values
+        if (Math.abs(yMax.subtract(yMin).doubleValue()) / 5 == 0.0) {
+          yTransform = (int) (bounds.getHeight() / 2.0);
+        }
+
+        int xOffset = (int) (bounds.getX() + xTransform - 1);
+        int yOffset = (int) (bounds.getY() + yTransform);
+        // System.out.println(yOffset);
+        // System.out.println(yTransform);
+
+        // paint line
+        if (series.stroke != null) {
+          if (previousX != Integer.MIN_VALUE && previousY != Integer.MIN_VALUE) {
+            g.setColor(series.strokeColor);
+            g.setStroke(series.stroke);
+            g.drawLine(previousX, previousY, xOffset, yOffset);
+          }
+          previousX = xOffset;
+          previousY = yOffset;
+        }
+
+        // paint marker
+        if (series.marker != null) {
+          g.setColor(series.markerColor);
+          series.marker.paint(g, xOffset, yOffset);
+        }
+
+        // paint errorbar
+        if (errorBars != null) {
+          g.setColor(plot.chart.bordersColor);
+          g.setStroke(new BasicStroke(1, BasicStroke.CAP_BUTT, BasicStroke.JOIN_BEVEL));
+          int bottom = (int) (-1 * bounds.getHeight() * eb / (yMax.subtract(yMin).doubleValue()));
+          int top = (int) (bounds.getHeight() * eb / (yMax.subtract(yMin).doubleValue()));
+          g.drawLine(xOffset, yOffset + bottom, xOffset, yOffset + top);
+          g.drawLine(xOffset - 3, yOffset + bottom, xOffset + 3, yOffset + bottom);
+          g.drawLine(xOffset - 3, yOffset + top, xOffset + 3, yOffset + top);
+        }
+      }
+
+    }
+
+  }
+
+}
diff --git a/src/main/java/com/xeiam/xchart/internal/chartpart/PlotSurface.java b/src/main/java/com/xeiam/xchart/internal/chartpart/PlotSurface.java
new file mode 100644
index 0000000000000000000000000000000000000000..8965a721c69498afdd42a287d8d0338d9a04740c
--- /dev/null
+++ b/src/main/java/com/xeiam/xchart/internal/chartpart/PlotSurface.java
@@ -0,0 +1,130 @@
+/**
+ * Copyright 2011-2012 Xeiam LLC.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package com.xeiam.xchart.internal.chartpart;
+
+import java.awt.BasicStroke;
+import java.awt.Color;
+import java.awt.Graphics2D;
+import java.awt.Rectangle;
+import java.util.List;
+
+import com.xeiam.xchart.ChartColor;
+import com.xeiam.xchart.internal.interfaces.IChartPart;
+import com.xeiam.xchart.internal.interfaces.IHideable;
+
+/**
+ * @author timmolter
+ */
+public class PlotSurface implements IChartPart, IHideable {
+
+  /** parent */
+  private Plot plot;
+
+  /** the gridLines Color */
+  private Color gridLinesColor;
+
+  /** the background color */
+  private Color foregroundColor;
+
+  /** the line style */
+  private BasicStroke stroke;
+
+  /** the visibility state of PlotSurface */
+  protected boolean isVisible = true; // default to true
+
+  /**
+   * Constructor
+   * 
+   * @param plot
+   */
+  protected PlotSurface(Plot plot) {
+
+    this.plot = plot;
+    gridLinesColor = ChartColor.getAWTColor(ChartColor.GREY); // default gridLines color
+    foregroundColor = ChartColor.getAWTColor(ChartColor.LIGHT_GREY); // default foreground Color color
+    stroke = new BasicStroke(1, BasicStroke.CAP_BUTT, BasicStroke.JOIN_BEVEL, 10.0f, new float[] { 3.0f, 3.0f }, 0.0f);
+  }
+
+  @Override
+  public Rectangle getBounds() {
+
+    return plot.getBounds();
+  }
+
+  @Override
+  public void paint(Graphics2D g) {
+
+    Rectangle bounds = plot.getBounds();
+
+    // paint foreground
+    Rectangle backgroundRectangle = new Rectangle((int) bounds.getX() - 1, (int) bounds.getY(), (int) (bounds.getWidth()), (int) bounds.getHeight());
+    g.setColor(foregroundColor);
+    g.fill(backgroundRectangle);
+    Rectangle borderRectangle = new Rectangle((int) bounds.getX() - 1, (int) bounds.getY(), (int) (bounds.getWidth()), (int) bounds.getHeight());
+    g.setColor(plot.chart.bordersColor);
+    g.draw(borderRectangle);
+
+    // paint grid lines
+    if (isVisible) {
+      // horizontal
+      List<Integer> yAxisTickLocations = plot.chart.axisPair.yAxis.axisTick.tickLocations;
+      for (int i = 0; i < yAxisTickLocations.size(); i++) {
+
+        int tickLocation = yAxisTickLocations.get(i);
+
+        g.setColor(gridLinesColor);
+        g.setStroke(stroke);
+        // System.out.println("bounds.getY()= " + bounds.getY());
+        g.drawLine((int) bounds.getX(), (int) (bounds.getY() + bounds.getHeight() - tickLocation), (int) (bounds.getX() + bounds.getWidth() - 2), (int) (bounds.getY() + bounds.getHeight() - tickLocation));
+      }
+
+      // vertical
+      List<Integer> xAxisTickLocations = plot.chart.axisPair.xAxis.axisTick.tickLocations;
+      for (int i = 0; i < xAxisTickLocations.size(); i++) {
+
+        int tickLocation = xAxisTickLocations.get(i);
+
+        g.setColor(gridLinesColor);
+        g.setStroke(stroke);
+
+        g.drawLine((int) (bounds.getX() + tickLocation - 1), (int) (bounds.getY() + 1), (int) (bounds.getX() + tickLocation - 1), (int) (bounds.getY() + bounds.getHeight() - 1));
+      }
+    }
+  }
+
+  @Override
+  public void setVisible(boolean isVisible) {
+
+    this.isVisible = isVisible;
+  }
+
+  /**
+   * @param gridLinesColor the gridLinesColor to set
+   */
+  public void setGridLinesColor(Color gridLinesColor) {
+
+    this.gridLinesColor = gridLinesColor;
+  }
+
+  /**
+   * @param foregroundColor the foregroundColor to set
+   */
+  public void setForegroundColor(Color foregroundColor) {
+
+    this.foregroundColor = foregroundColor;
+  }
+
+}
diff --git a/src/main/java/com/xeiam/xchart/internal/interfaces/IChartPart.java b/src/main/java/com/xeiam/xchart/internal/interfaces/IChartPart.java
new file mode 100644
index 0000000000000000000000000000000000000000..0e385adc3b31feb1e15514bbc0db944615af507c
--- /dev/null
+++ b/src/main/java/com/xeiam/xchart/internal/interfaces/IChartPart.java
@@ -0,0 +1,32 @@
+/**
+ * Copyright 2011-2012 Xeiam LLC.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package com.xeiam.xchart.internal.interfaces;
+
+import java.awt.Graphics2D;
+import java.awt.Rectangle;
+
+/**
+ * All components of a chart that need to be painted should implement this interface
+ * 
+ * @author timmolter
+ */
+public interface IChartPart {
+
+  public Rectangle getBounds();
+
+  public void paint(final Graphics2D g);
+
+}
diff --git a/src/main/java/com/xeiam/xchart/internal/interfaces/IHideable.java b/src/main/java/com/xeiam/xchart/internal/interfaces/IHideable.java
new file mode 100644
index 0000000000000000000000000000000000000000..b546fc47fbf4dda488b53b80828f5c3d924c1d72
--- /dev/null
+++ b/src/main/java/com/xeiam/xchart/internal/interfaces/IHideable.java
@@ -0,0 +1,18 @@
+/*******************************************************************************
+ * Copyright (c) 2008-2011 SWTChart project. All rights reserved. 
+ * 
+ * This code is distributed under the terms of the Eclipse Public License v1.0
+ * which is available at http://www.eclipse.org/legal/epl-v10.html
+ *******************************************************************************/
+package com.xeiam.xchart.internal.interfaces;
+
+/**
+ * ChartParts that can be set visible or not should implement this interface
+ * 
+ * @author timmolter
+ */
+public interface IHideable extends IChartPart {
+
+  public void setVisible(boolean isVisible);
+
+}
\ No newline at end of file
diff --git a/src/main/java/com/xeiam/xchart/internal/markers/Circle.java b/src/main/java/com/xeiam/xchart/internal/markers/Circle.java
new file mode 100644
index 0000000000000000000000000000000000000000..c60b6238a823e6d868c50183dea273dd9a87e945
--- /dev/null
+++ b/src/main/java/com/xeiam/xchart/internal/markers/Circle.java
@@ -0,0 +1,33 @@
+/**
+ * Copyright 2011-2012 Xeiam LLC.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package com.xeiam.xchart.internal.markers;
+
+import java.awt.Graphics2D;
+
+/**
+ * @author timmolter
+ */
+public class Circle extends Marker {
+
+  @Override
+  public void paint(Graphics2D g, int xOffset, int yOffset) {
+
+    g.setStroke(stroke);
+    g.fillOval(xOffset + Marker.X_OFFSET, yOffset + Marker.Y_OFFSET, Marker.SIZE, Marker.SIZE);
+
+  }
+
+}
diff --git a/src/main/java/com/xeiam/xchart/internal/markers/Diamond.java b/src/main/java/com/xeiam/xchart/internal/markers/Diamond.java
new file mode 100644
index 0000000000000000000000000000000000000000..f14c43ad23370d0bbde13a3bc3c40f27a0d47045
--- /dev/null
+++ b/src/main/java/com/xeiam/xchart/internal/markers/Diamond.java
@@ -0,0 +1,52 @@
+/**
+ * Copyright 2011-2012 Xeiam LLC.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package com.xeiam.xchart.internal.markers;
+
+import java.awt.Graphics2D;
+import java.awt.Polygon;
+
+/**
+ * @author timmolter
+ */
+public class Diamond extends Marker {
+
+  @Override
+  public void paint(Graphics2D g, int xOffset, int yOffset) {
+
+    g.setStroke(stroke);
+
+    int[] x = new int[4];
+    int[] y = new int[4];
+    int n = 4;
+
+    // Make a diamond
+    int halfSize = (int) (Math.ceil((Marker.SIZE + 3) / 2.0));
+    x[0] = xOffset - halfSize + 0;
+    x[1] = xOffset - halfSize + halfSize;
+    x[2] = xOffset - halfSize + Marker.SIZE + 3;
+    x[3] = xOffset - halfSize + halfSize;
+
+    y[0] = 1 + yOffset - halfSize + halfSize;
+    y[1] = 1 + yOffset - halfSize + Marker.SIZE + 3;
+    y[2] = 1 + yOffset - halfSize + halfSize;
+    y[3] = 1 + yOffset - halfSize + 0;
+
+    Polygon diamond = new Polygon(x, y, n);
+    g.fillPolygon(diamond);
+
+  }
+
+}
diff --git a/src/main/java/com/xeiam/xchart/internal/markers/Marker.java b/src/main/java/com/xeiam/xchart/internal/markers/Marker.java
new file mode 100644
index 0000000000000000000000000000000000000000..304c19b603b8e3dd0691d72471d644c5b89c9ce9
--- /dev/null
+++ b/src/main/java/com/xeiam/xchart/internal/markers/Marker.java
@@ -0,0 +1,34 @@
+/**
+ * Copyright 2011-2012 Xeiam LLC.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package com.xeiam.xchart.internal.markers;
+
+import java.awt.BasicStroke;
+import java.awt.Graphics2D;
+
+/**
+ * @author timmolter
+ */
+public abstract class Marker {
+
+  protected BasicStroke stroke = new BasicStroke(1, BasicStroke.CAP_BUTT, BasicStroke.JOIN_BEVEL);
+
+  public static final int SIZE = 7; // make this an odd number!
+
+  public static final int X_OFFSET = (int) (-1.0 * (SIZE / 2.0));
+  public static final int Y_OFFSET = (int) (-1.0 * (SIZE / 2.0));
+
+  public abstract void paint(Graphics2D g, int xOffset, int yOffset);
+}
diff --git a/src/main/java/com/xeiam/xchart/internal/markers/Square.java b/src/main/java/com/xeiam/xchart/internal/markers/Square.java
new file mode 100644
index 0000000000000000000000000000000000000000..5117a4d7223d74eb1a3865c98ef3f7fcb24cfac6
--- /dev/null
+++ b/src/main/java/com/xeiam/xchart/internal/markers/Square.java
@@ -0,0 +1,34 @@
+/**
+ * Copyright 2011-2012 Xeiam LLC.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package com.xeiam.xchart.internal.markers;
+
+import java.awt.Graphics2D;
+import java.awt.Rectangle;
+
+/**
+ * @author timmolter
+ */
+public class Square extends Marker {
+
+  @Override
+  public void paint(Graphics2D g, int xOffset, int yOffset) {
+
+    g.setStroke(stroke);
+    g.fill(new Rectangle(xOffset + Marker.X_OFFSET, yOffset + Marker.Y_OFFSET, Marker.SIZE, Marker.SIZE));
+
+  }
+
+}
diff --git a/src/main/java/com/xeiam/xchart/internal/markers/TriangleDown.java b/src/main/java/com/xeiam/xchart/internal/markers/TriangleDown.java
new file mode 100644
index 0000000000000000000000000000000000000000..944f5d80321df7081afc24d17c4ee7a49d3ce013
--- /dev/null
+++ b/src/main/java/com/xeiam/xchart/internal/markers/TriangleDown.java
@@ -0,0 +1,49 @@
+/**
+ * Copyright 2011-2012 Xeiam LLC.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package com.xeiam.xchart.internal.markers;
+
+import java.awt.Graphics2D;
+import java.awt.Polygon;
+
+/**
+ * @author timmolter
+ */
+public class TriangleDown extends Marker {
+
+  @Override
+  public void paint(Graphics2D g, int xOffset, int yOffset) {
+
+    g.setStroke(stroke);
+
+    int[] x = new int[3];
+    int[] y = new int[3];
+    int n = 3;
+
+    // Make a triangle
+    int halfSize = (int) (Math.ceil((Marker.SIZE + 1) / 2.0));
+    x[0] = xOffset - halfSize + 0;
+    x[1] = xOffset - halfSize + halfSize;
+    x[2] = xOffset - halfSize + Marker.SIZE + 1;
+
+    y[0] = 1 + yOffset - halfSize + 0;
+    y[1] = 1 + yOffset - halfSize + Marker.SIZE + 1;
+    y[2] = 1 + yOffset - halfSize + 0;
+
+    Polygon triangle = new Polygon(x, y, n);
+    g.fillPolygon(triangle);
+
+  }
+}
diff --git a/src/main/java/com/xeiam/xchart/internal/markers/TriangleUp.java b/src/main/java/com/xeiam/xchart/internal/markers/TriangleUp.java
new file mode 100644
index 0000000000000000000000000000000000000000..5d7e4bb45209f5053073d58d61ac90f39dfd0b26
--- /dev/null
+++ b/src/main/java/com/xeiam/xchart/internal/markers/TriangleUp.java
@@ -0,0 +1,49 @@
+/**
+ * Copyright 2011-2012 Xeiam LLC.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package com.xeiam.xchart.internal.markers;
+
+import java.awt.Graphics2D;
+import java.awt.Polygon;
+
+/**
+ * @author timmolter
+ */
+public class TriangleUp extends Marker {
+
+  @Override
+  public void paint(Graphics2D g, int xOffset, int yOffset) {
+
+    g.setStroke(stroke);
+
+    int[] x = new int[3];
+    int[] y = new int[3];
+    int n = 3;
+
+    // Make a triangle
+    int halfSize = (int) (Math.ceil((Marker.SIZE + 1) / 2.0));
+    x[0] = xOffset - halfSize + 0;
+    x[1] = xOffset - halfSize + Marker.SIZE + 1;
+    x[2] = xOffset - halfSize + halfSize;
+
+    y[0] = yOffset - halfSize + Marker.SIZE + 1;
+    y[1] = yOffset - halfSize + Marker.SIZE + 1;
+    y[2] = yOffset - halfSize + 0;
+
+    Polygon triangle = new Polygon(x, y, n);
+    g.fillPolygon(triangle);
+
+  }
+}
diff --git a/src/test/java/com/xeiam/xchart/example/Example1.java b/src/test/java/com/xeiam/xchart/example/Example1.java
index e71b16b7ba80f1d093332badf9ab7c866957780f..d3378f195ba32c709243379abd4bf79bc6f505af 100644
--- a/src/test/java/com/xeiam/xchart/example/Example1.java
+++ b/src/test/java/com/xeiam/xchart/example/Example1.java
@@ -22,7 +22,7 @@ import com.xeiam.xchart.BitmapEncoder;
 import com.xeiam.xchart.Chart;
 
 /**
- * Creates a simple charts and saves it as a PNG image file.
+ * Creates a simple Chart and saves it as a PNG and JPEG image file.
  * 
  * @author timmolter
  */
@@ -41,6 +41,7 @@ public class Example1 {
     chart.addSeries("y(x)", xData, yData);
 
     BitmapEncoder.savePNG(chart, "./Sample_Chart.png");
+    BitmapEncoder.saveJPG(chart, "./Sample_Chart.jpg", 0.95f);
 
   }
 
diff --git a/src/test/java/com/xeiam/xchart/example/Example2.java b/src/test/java/com/xeiam/xchart/example/Example2.java
index 94075eb392ec1d3cf493f3c927d7dc3ea63042d0..909d98d832969f18f14d22a436139b44ec5dae05 100644
--- a/src/test/java/com/xeiam/xchart/example/Example2.java
+++ b/src/test/java/com/xeiam/xchart/example/Example2.java
@@ -19,11 +19,11 @@ import java.util.ArrayList;
 import java.util.Collection;
 
 import com.xeiam.xchart.Chart;
+import com.xeiam.xchart.Series;
+import com.xeiam.xchart.SeriesColor;
+import com.xeiam.xchart.SeriesLineStyle;
+import com.xeiam.xchart.SeriesMarker;
 import com.xeiam.xchart.SwingWrapper;
-import com.xeiam.xchart.series.Series;
-import com.xeiam.xchart.series.SeriesColor;
-import com.xeiam.xchart.series.SeriesLineStyle;
-import com.xeiam.xchart.series.SeriesMarker;
 
 /**
  * Embed a Chart in a simple Swing application
diff --git a/src/test/java/com/xeiam/xchart/example/Example8.java b/src/test/java/com/xeiam/xchart/example/Example8.java
index 8f5330b17b6c97a488e9094bf37c4962bbb8eed7..b3322d18f634cebdaed799eb482646ac084130c4 100644
--- a/src/test/java/com/xeiam/xchart/example/Example8.java
+++ b/src/test/java/com/xeiam/xchart/example/Example8.java
@@ -19,11 +19,11 @@ import java.util.ArrayList;
 import java.util.Collection;
 
 import com.xeiam.xchart.Chart;
+import com.xeiam.xchart.Series;
+import com.xeiam.xchart.SeriesColor;
+import com.xeiam.xchart.SeriesLineStyle;
+import com.xeiam.xchart.SeriesMarker;
 import com.xeiam.xchart.SwingWrapper;
-import com.xeiam.xchart.series.Series;
-import com.xeiam.xchart.series.SeriesColor;
-import com.xeiam.xchart.series.SeriesLineStyle;
-import com.xeiam.xchart.series.SeriesMarker;
 
 /**
  * Create a Chart with error bars
diff --git a/src/test/java/com/xeiam/xchart/example/Example9.java b/src/test/java/com/xeiam/xchart/example/Example9.java
index 8ffe4c116393899ac2c8dff0f29b77a62f236ae4..dc9b777df6cb74e45d87c2326514bb95b25cb855 100644
--- a/src/test/java/com/xeiam/xchart/example/Example9.java
+++ b/src/test/java/com/xeiam/xchart/example/Example9.java
@@ -27,11 +27,11 @@ import java.util.Locale;
 
 import com.xeiam.xchart.Chart;
 import com.xeiam.xchart.ChartColor;
+import com.xeiam.xchart.Series;
+import com.xeiam.xchart.SeriesColor;
+import com.xeiam.xchart.SeriesLineStyle;
+import com.xeiam.xchart.SeriesMarker;
 import com.xeiam.xchart.SwingWrapper;
-import com.xeiam.xchart.series.Series;
-import com.xeiam.xchart.series.SeriesColor;
-import com.xeiam.xchart.series.SeriesLineStyle;
-import com.xeiam.xchart.series.SeriesMarker;
 
 /**
  * Create a chart with a Date x-axis and extensive chart customization