2D图形 Line线

• 创建线段Line line = new Line(0, 0, 100, 100);

• 设置线条颜色line.setStroke(Color.valueOf("#ff9999"));

• 设置线条宽度line.setStrokeWidth(5);

• 设置线条端点形状（圆角）line.setStrokeLineCap(StrokeLineCap.ROUND);

• 设置线条平滑line.setSmooth(true);

• 设置线条虚线（线段长度，线段距离，线段长度，线段距离……）参数不足则循环使用line.getStrokeDashArray().addAll(5.0, 10.0, 5.0, 20.0);

• 设置线条虚线偏移量line.setStrokeDashOffset(4);

• 线段连接的效果

  AnchorPane otherBox = new AnchorPane();  
  Line otLine = new Line(0, 0, 100, 0);  
  otLine.setStroke(Color.valueOf("#ff9999"));  
  otLine.setStrokeWidth(10);  
  otLine.setStrokeLineCap(StrokeLineCap.ROUND);  
  otherBox.getChildren().add(otLine);  
  Line otLine1 = new Line(100, 0, 100, 100);  
  otLine1.setStroke(Color.valueOf("#996699"));  
  otLine1.setStrokeWidth(10);  
  otLine1.setStrokeLineCap(StrokeLineCap.BUTT);// 两条线段之间衔接后会有空隙  
  otherBox.getChildren().add(otLine1);  
  Line otLine2 = new Line(100, 100, 200, 100);  
  otLine2.setStroke(Color.valueOf("#ffcccc"));  
  otLine2.setStrokeWidth(10);  
  otLine2.setStrokeLineCap(StrokeLineCap.SQUARE);// 默认值  
  otherBox.getChildren().add(otLine2);