JavaFx 2.x:如何绘制虚线或虚线? [英] JavaFx 2.x : How to draw dashed or dotted lines?

问题描述

我想从实线，点线或虚线动态更改线条的绘制:似乎我必须使用line.setStroke，这是正确的方法吗?

I would like to dynamically change the draw of a line from solid, dotted or dashed: it seems I have to use line.setStroke, is it the correct method?

那么，如何实现呢?

谢谢

推荐答案

不，这不是正确的方法，setStroke设置笔触的颜色.
正确的方法是getStrokeDashArray().add():

No that is not the correct method, setStroke sets the color of the stroke.
Correct method is getStrokeDashArray().add():

Line line1 = new Line(20, 40, 270, 40);
line1.getStrokeDashArray().addAll(25d, 20d, 5d, 20d);

Line line2 = new Line(20, 60, 270, 60);
line2.getStrokeDashArray().addAll(50d, 40d);

Line line3 = new Line(20, 80, 270, 80);
line3.getStrokeDashArray().addAll(25d, 10d);

Line line4 = new Line(20, 100, 270, 100);
line4.getStrokeDashArray().addAll(2d);

Line line5 = new Line(20, 120, 270, 120);
line5.getStrokeDashArray().addAll(2d, 21d);

pane.getChildren().addAll(line1, line2, line3, line4, line5);

StrokeDashArray定义线和间隙序列的模式.看到以下不同的模式作为上述内容的输出:

StrokeDashArray defines the pattern of line and gap sequences. See the following different patterns as output of aboves:

当然，通过操纵StrokeDashArray数组元素，您可以动态更改模式.

Of course by manipulating the StrokeDashArray array elements you can change the pattern dynamically.

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