2D图形 Circle圆形

• 创建圆形Circle circle = new Circle();

• 设置圆心

  circle.setCenterX(0);  
  circle.setCenterY(0);
  

• 设置半径circle.setRadius(100);

• 其他设置

  Circle circle2 = new Circle();  
  circle2.setCenterX(0);  
  circle2.setCenterY(0);  
  circle2.setRadius(100);  
  circle2.setFill(Color.valueOf("#ff9999"));  
  circle2.setStrokeWidth(3);  
  circle2.setStroke(Color.valueOf("#996699"));  
  circle2.setSmooth(true);  
  circle2.getStrokeDashArray().addAll(10.0, 10.0);// 虚线
  

• 获取坐标

  // 将该组件添加到根节点上
  Circle circle4 = new Circle();  
  circle4.setCenterX(0);  
  circle4.setCenterY(0);  
  circle4.setRadius(100);  
  circle4.setFill(Color.valueOf("#ff9999"));  
  circle4.setSmooth(true);  
  circle4.setOnMouseClicked(event -> {  
      if (event.getClickCount()>1){  
          return;  
      }  
      System.out.println(circle4.getLayoutBounds());  
      System.out.println(circle4.getBoundsInLocal());  
      System.out.println(circle4.getBoundsInParent());  
  });
  

  BoundingBox [minX:-100.0, minY:-100.0, minZ:0.0, width:200.0, height:200.0, depth:0.0, maxX:100.0, maxY:100.0, maxZ:0.0]
  BoundingBox [minX:-100.0, minY:-100.0, minZ:0.0, width:200.0, height:200.0, depth:0.0, maxX:100.0, maxY:100.0, maxZ:0.0]
  BoundingBox [minX:-100.0, minY:-100.0, minZ:0.0, width:200.0, height:200.0, depth:0.0, maxX:100.0, maxY:100.0, maxZ:0.0]