How to use

RadarView

in

jsc.kit.component.radarview

/**
 * 计算value顶点
 *
 * @param startAngle
 * @param radarEntities
 * @param maxRadius
 * @return
 */
private List<RadarPoint> getDataPoints(int startAngle, float maxRadius, List<RadarEntity> radarEntities) {
  List<RadarPoint> points = new ArrayList<>();
  int count = radarEntities.size();
  int avgAngle = 360 / count;
  for (int i = 0; i < count; i++) {
    RadarEntity entity = radarEntities.get(i);
    int angle = startAngle + avgAngle * i;
    float tempRadius = maxRadius * entity.getValue();
    RadarPoint point = getPointAtSpecialAngle(angle, getWidth() / 2.0f, getWidth() / 2.0f, tempRadius);
    points.add(point);
  }
  return points;
}

  return;
int maxHPadding = Math.max(getPaddingLeft(), getPaddingRight());
int maxVPadding = Math.max(getPaddingTop(), getPaddingBottom());
float maxRadius = getWidth() / 2.0f - layerStrokeWidth - Math.max(maxHPadding, maxVPadding);
int count = radarEntities.size();
for (int i = 0; i < layerCount; i++) {
  float tempRadius = maxRadius - maxRadius * i / layerCount;
  List<RadarPoint> points = getPointsOnCircle(startAngle, count, getWidth() / 2.0f, getWidth() / 2.0f, tempRadius);
  drawPolygon(canvas, points, paint);
  pointLists.add(points);
    RadarPoint point1 = pointLists.get(0).get(i);
    RadarPoint point2 = pointLists.get(layerCount - 1).get(i);
    drawPolygonLine(canvas, point1, point2, paint);
drawPolygon(canvas, getDataPoints(startAngle, maxRadius, radarEntities), paint);
  drawLabel(canvas, radarEntities.get(i), point, textPaint, vertexRadius + 8);

/**
 * 计算多边形顶点
 *
 * @param startAngle
 * @param count
 * @param centerX
 * @param centerY
 * @param radius
 * @return
 */
private List<RadarPoint> getPointsOnCircle(int startAngle, int count, float centerX, float centerY, float radius) {
  List<RadarPoint> points = new ArrayList<>();
  int avgAngle = 360 / count;
  for (int i = 0; i < count; i++) {
    int angle = startAngle + avgAngle * i;
    points.add(getPointAtSpecialAngle(angle, centerX, centerY, radius));
  }
  return points;
}