Add radar layer custom color support

PhilJay#5273
AppDevNext · Mar 7, 2022 · dc917c5 · dc917c5
1 parent db1f18f
commit dc917c5
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Showing 3 changed files with 65 additions and 2 deletions.
diff --git a/MPChartExample/src/main/java/com/xxmassdeveloper/mpchartexample/RadarChartActivity.java b/MPChartExample/src/main/java/com/xxmassdeveloper/mpchartexample/RadarChartActivity.java
@@ -29,6 +29,7 @@
 import com.xxmassdeveloper.mpchartexample.notimportant.DemoBase;
 
 import java.util.ArrayList;
+import java.util.List;
 
 public class RadarChartActivity extends DemoBase {
 
@@ -147,6 +148,13 @@ private void setData() {
  data.setValueTextColor(Color.WHITE);
 
  chart.setData(data);
+ List<Integer> colorList = new ArrayList<>();
+ colorList.add(Color.rgb(222, 166, 111));
+ colorList.add(Color.rgb(220, 206, 138));
+ colorList.add(Color.rgb(243, 255, 192));
+ colorList.add(Color.rgb(240, 255, 240));
+ colorList.add(Color.rgb(250, 255, 250));
+ chart.setLayerColorList(colorList);
  chart.invalidate();
  }
 

diff --git a/MPChartLib/src/main/java/com/github/mikephil/charting/charts/RadarChart.java b/MPChartLib/src/main/java/com/github/mikephil/charting/charts/RadarChart.java
@@ -16,6 +16,8 @@
 import com.github.mikephil.charting.renderer.YAxisRendererRadarChart;
 import com.github.mikephil.charting.utils.Utils;
 
+import java.util.List;
+
 /**
  * Implementation of the RadarChart, a "spidernet"-like chart. It works best
  * when displaying 5-10 entries per DataSet.
@@ -64,6 +66,8 @@ public class RadarChart extends PieRadarChartBase<RadarData> {
  */
  private YAxis mYAxis;
 
+ private List<Integer> colorList;
+
  protected YAxisRendererRadarChart mYAxisRenderer;
  protected XAxisRendererRadarChart mXAxisRenderer;
 
@@ -179,6 +183,25 @@ public float getSliceAngle() {
  return 360f / (float) mData.getMaxEntryCountSet().getEntryCount();
  }
 
+
+ public void setLayerColorList(List<Integer> colorList) {
+ if (colorList == null || colorList.size() == 0) {
+ return;
+ }
+ this.colorList = colorList;
+ }
+
+ public boolean isCustomLayerColorEnable() {
+ if (mData == null) {
+ return false;
+ }
+ return colorList != null && colorList.size() == getYAxis().mEntryCount;
+ }
+
+ public List<Integer> getLayerColorList() {
+ return colorList;
+ }
+
  @Override
  public int getIndexForAngle(float angle) {
 

diff --git a/MPChartLib/src/main/java/com/github/mikephil/charting/renderer/RadarChartRenderer.java b/MPChartLib/src/main/java/com/github/mikephil/charting/renderer/RadarChartRenderer.java
@@ -28,6 +28,12 @@ public class RadarChartRenderer extends LineRadarRenderer {
  protected Paint mWebPaint;
  protected Paint mHighlightCirclePaint;
 
+ private Paint paint = new Paint(Paint.ANTI_ALIAS_FLAG);
+ private Path previousPath = new Path();
+ private Path innerArea = new Path();
+ private Path temp = new Path();
+
+
  public RadarChartRenderer(RadarChart chart, ChartAnimator animator,
  ViewPortHandler viewPortHandler) {
  super(animator, viewPortHandler);
@@ -38,6 +44,10 @@ public RadarChartRenderer(RadarChart chart, ChartAnimator animator,
  mHighlightPaint.setStrokeWidth(2f);
  mHighlightPaint.setColor(Color.rgb(255, 187, 115));
 
+ paint.setStyle(Paint.Style.FILL);
+ paint.setStrokeWidth(2f);
+ paint.setColor(Color.RED);
+
  mWebPaint = new Paint(Paint.ANTI_ALIAS_FLAG);
  mWebPaint.setStyle(Paint.Style.STROKE);
 
@@ -282,18 +292,40 @@ protected void drawWeb(Canvas c) {
  MPPointF p1out = MPPointF.getInstance(0, 0);
  MPPointF p2out = MPPointF.getInstance(0, 0);
  for (int j = 0; j < labelCount; j++) {
-
+ if (mChart.isCustomLayerColorEnable()) {
+ innerArea.rewind();
+ paint.setColor(mChart.getLayerColorList().get(j));
+ }
  for (int i = 0; i < mChart.getData().getEntryCount(); i++) {
-
  float r = (mChart.getYAxis().mEntries[j] - mChart.getYChartMin()) * factor;
 
  Utils.getPosition(center, r, sliceangle * i + rotationangle, p1out);
  Utils.getPosition(center, r, sliceangle * (i + 1) + rotationangle, p2out);
 
  c.drawLine(p1out.x, p1out.y, p2out.x, p2out.y, mWebPaint);
+ if (mChart.isCustomLayerColorEnable()) {
+ if (p1out.x != p2out.x) {
+ if (i == 0) {
+ innerArea.moveTo(p1out.x, p1out.y);
+ } else {
+ innerArea.lineTo(p1out.x, p1out.y);
+ }
+ innerArea.lineTo(p2out.x, p2out.y);
+ }
+ }
 
 
  }
+ if (mChart.isCustomLayerColorEnable()) {
+ temp.set(innerArea);
+ if (!innerArea.isEmpty()) {
+ boolean result = innerArea.op(previousPath, Path.Op.DIFFERENCE);
+ if (result) {
+ c.drawPath(innerArea, paint);
+ }
+ }
+ previousPath.set(temp);
+ }
  }
  MPPointF.recycleInstance(p1out);
  MPPointF.recycleInstance(p2out);