diff --git a/xchart-demo/src/main/java/org/knowm/xchart/demo/charts/pie/PieChart02.java b/xchart-demo/src/main/java/org/knowm/xchart/demo/charts/pie/PieChart02.java
index 9b4af0025fad87817224a2372f82a1b8c205f763..268fe317f1d6755e68b2e8e03a5f2a28048ecdd2 100644
--- a/xchart-demo/src/main/java/org/knowm/xchart/demo/charts/pie/PieChart02.java
+++ b/xchart-demo/src/main/java/org/knowm/xchart/demo/charts/pie/PieChart02.java
@@ -20,6 +20,7 @@ import java.awt.Color;
import org.knowm.xchart.ChartBuilderPie;
import org.knowm.xchart.Chart_Pie;
+import org.knowm.xchart.Series_Pie;
import org.knowm.xchart.SwingWrapper;
import org.knowm.xchart.demo.charts.ExampleChart;
@@ -48,7 +49,8 @@ public class PieChart02 implements ExampleChart<Chart_Pie> {
Chart_Pie chart = new ChartBuilderPie().width(800).height(600).title(getClass().getSimpleName()).build();
chart.addSeries("Gold", 24);
chart.addSeries("Silver", 21);
- chart.addSeries("Platinum", 39);
+ Series_Pie series = chart.addSeries("Platinum", 39);
+
chart.addSeries("Copper", 17);
chart.addSeries("Zinc", 40);
diff --git a/xchart/src/main/java/org/knowm/xchart/Chart_Pie.java b/xchart/src/main/java/org/knowm/xchart/Chart_Pie.java
index e6452a4ce1b4e2d2f87c4bdf4a23adfc2119ced7..aa2b8015f9cb7cc7a90fd66207934c2edea4f695 100644
--- a/xchart/src/main/java/org/knowm/xchart/Chart_Pie.java
+++ b/xchart/src/main/java/org/knowm/xchart/Chart_Pie.java
@@ -91,7 +91,7 @@ public class Chart_Pie extends Chart<StyleManagerPie, Series_Pie> {
* @param value
* @return
*/
- public Series addSeries(String seriesName, Number value) {
+ public Series_Pie addSeries(String seriesName, Number value) {
Series_Pie series = new Series_Pie(seriesName, value);
diff --git a/xchart/src/main/java/org/knowm/xchart/StyleManagerPie.java b/xchart/src/main/java/org/knowm/xchart/StyleManagerPie.java
index 2e3c8e6dd153f35befcb1bda22c62e402655a49f..b78b68bcad616ebd674222d6ac7f85d39fe73941 100644
--- a/xchart/src/main/java/org/knowm/xchart/StyleManagerPie.java
+++ b/xchart/src/main/java/org/knowm/xchart/StyleManagerPie.java
@@ -27,6 +27,9 @@ public class StyleManagerPie extends StyleManager {
private ChartPieSeriesRenderStyle chartPieSeriesRenderStyle;
+ private double pieFillPercentage;
+ private boolean isCircular;
+
/**
* Constructor
*/
@@ -39,7 +42,9 @@ public class StyleManagerPie extends StyleManager {
@Override
protected void setAllStyles() {
- chartPieSeriesRenderStyle = ChartPieSeriesRenderStyle.Pie; // set default to area
+ chartPieSeriesRenderStyle = ChartPieSeriesRenderStyle.Pie; // set default to pie, donut may be a future one
+ pieFillPercentage = theme.getPieFillPercentage();
+ isCircular = theme.isCircular();
}
public ChartPieSeriesRenderStyle getChartPieSeriesRenderStyle() {
@@ -57,6 +62,36 @@ public class StyleManagerPie extends StyleManager {
this.chartPieSeriesRenderStyle = chartPieSeriesRenderStyle;
}
+ public double getPieFillPercentage() {
+
+ return pieFillPercentage;
+ }
+
+ /**
+ * Sets the amount of space that the pie chart fills. Full fill is 100%, i.e. 1.0
+ *
+ * @param pieFillPercentage
+ */
+ public void setPieFillPercentage(double pieFillPercentage) {
+
+ this.pieFillPercentage = pieFillPercentage;
+ }
+
+ public boolean isCircular() {
+
+ return isCircular;
+ }
+
+ /**
+ * Sets whether or not the pie chart is forced to be circular. Otherwise it's shape is oval, matching the containing plot.
+ *
+ * @param isCircular
+ */
+ public void setCircular(boolean isCircular) {
+
+ this.isCircular = isCircular;
+ }
+
/**
* Set the theme the style manager should use
*
diff --git a/xchart/src/main/java/org/knowm/xchart/internal/chartpart/PlotContent_Pie.java b/xchart/src/main/java/org/knowm/xchart/internal/chartpart/PlotContent_Pie.java
index 647dd74cb94292ee6f9e5bab5105b254015d5aed..768d1a0fb09f6dadb6d4c7506df93a3e845d9e5b 100644
--- a/xchart/src/main/java/org/knowm/xchart/internal/chartpart/PlotContent_Pie.java
+++ b/xchart/src/main/java/org/knowm/xchart/internal/chartpart/PlotContent_Pie.java
@@ -66,13 +66,30 @@ public class PlotContent_Pie<SM extends StyleManager, S extends Series> extends
g.setClip(bounds.createIntersection(rectangle));
// pie bounds
- double percentage = .70;
+ double percentage = styleManagerPie.getPieFillPercentage();
+
+ // if (styleManagerPie.isCircular()) {
+ //
+ // double pieDiameter = Math.min(bounds.getWidth(), bounds.getHeight());
+ // }
+
double halfBorderPercentage = (1 - percentage) / 2.0;
- Rectangle2D pieBounds = new Rectangle2D.Double(bounds.getX() + bounds.getWidth() * halfBorderPercentage, bounds.getY() + bounds.getHeight() * halfBorderPercentage, bounds.getWidth() * percentage,
- bounds.getHeight() * percentage);
- // g.setStroke(new BasicStroke(1, BasicStroke.CAP_BUTT, BasicStroke.JOIN_BEVEL));
- // g.setColor(Color.black);
- // g.draw(pieBounds);
+ double width = styleManagerPie.isCircular() ? Math.min(bounds.getWidth(), bounds.getHeight()) : bounds.getWidth();
+ double height = styleManagerPie.isCircular() ? Math.min(bounds.getWidth(), bounds.getHeight()) : bounds.getHeight();
+
+ Rectangle2D pieBounds = new Rectangle2D.Double(
+
+ bounds.getX() + bounds.getWidth() / 2 - width / 2 + halfBorderPercentage * width,
+
+ bounds.getY() + bounds.getHeight() / 2 - height / 2 + halfBorderPercentage * height,
+
+ width * percentage,
+
+ height * percentage);
+
+ // g.setStroke(new BasicStroke(1, BasicStroke.CAP_BUTT, BasicStroke.JOIN_BEVEL));
+ // g.setColor(Color.black);
+ // g.draw(pieBounds);
// get total
double total = 0.0;
diff --git a/xchart/src/main/java/org/knowm/xchart/internal/style/GGPlot2Theme.java b/xchart/src/main/java/org/knowm/xchart/internal/style/GGPlot2Theme.java
index 5909d99d6256b7f78443b05833564b518f978812..e8086333037e036ed09f963029be0965fced0aa3 100644
--- a/xchart/src/main/java/org/knowm/xchart/internal/style/GGPlot2Theme.java
+++ b/xchart/src/main/java/org/knowm/xchart/internal/style/GGPlot2Theme.java
@@ -334,6 +334,20 @@ public class GGPlot2Theme implements Theme {
return true;
}
+ // Pie Charts ///////////////////////////////
+
+ @Override
+ public double getPieFillPercentage() {
+
+ return .90;
+ }
+
+ @Override
+ public boolean isCircular() {
+
+ return true;
+ }
+
// Line, Scatter, Area Charts ///////////////////////////////
@Override
diff --git a/xchart/src/main/java/org/knowm/xchart/internal/style/MatlabTheme.java b/xchart/src/main/java/org/knowm/xchart/internal/style/MatlabTheme.java
index 1749f61cd0f811ba47f357fd526183fc54d4044f..59ed862dd31538ad334e589eeeab2110f7d8e2ce 100644
--- a/xchart/src/main/java/org/knowm/xchart/internal/style/MatlabTheme.java
+++ b/xchart/src/main/java/org/knowm/xchart/internal/style/MatlabTheme.java
@@ -338,6 +338,20 @@ public class MatlabTheme implements Theme {
return true;
}
+ // Pie Charts ///////////////////////////////
+
+ @Override
+ public double getPieFillPercentage() {
+
+ return .90;
+ }
+
+ @Override
+ public boolean isCircular() {
+
+ return true;
+ }
+
// Line, Scatter, Area Charts ///////////////////////////////
@Override
diff --git a/xchart/src/main/java/org/knowm/xchart/internal/style/Theme.java b/xchart/src/main/java/org/knowm/xchart/internal/style/Theme.java
index eb8e8388d179d40847fcdd99cb72dc628727f556..2297cfaf16a96df688806ff525bb9c282957cb40 100644
--- a/xchart/src/main/java/org/knowm/xchart/internal/style/Theme.java
+++ b/xchart/src/main/java/org/knowm/xchart/internal/style/Theme.java
@@ -132,6 +132,12 @@ public interface Theme extends SeriesMarkers, SeriesLines, SeriesColors {
public boolean isBarFilled();
+ // Pie Charts ///////////////////////////////
+
+ public double getPieFillPercentage();
+
+ public boolean isCircular();
+
// Line, Scatter, Area Charts ///////////////////////////////
public int getMarkerSize();
diff --git a/xchart/src/main/java/org/knowm/xchart/internal/style/XChartTheme.java b/xchart/src/main/java/org/knowm/xchart/internal/style/XChartTheme.java
index 888cd960cf07ec6850940e4cc9bc92b0f04832ae..61e52800ee89edd47cf8bce20845db1c67d3b0d1 100644
--- a/xchart/src/main/java/org/knowm/xchart/internal/style/XChartTheme.java
+++ b/xchart/src/main/java/org/knowm/xchart/internal/style/XChartTheme.java
@@ -334,6 +334,20 @@ public class XChartTheme implements Theme {
return true;
}
+ // Pie Charts ///////////////////////////////
+
+ @Override
+ public double getPieFillPercentage() {
+
+ return .90;
+ }
+
+ @Override
+ public boolean isCircular() {
+
+ return true;
+ }
+
// Line, Scatter, Area Charts ///////////////////////////////
@Override