[英]Java draw line with border
I'm developing a JApplet in which the user can draw some lines over an image. 我正在开发一个JApplet,用户可以在其上绘制一些图像线。 Lines can be red or green, but I need to highlight them because I don't know the background color.
线条可以是红色或绿色,但我需要突出显示它们,因为我不知道背景颜色。
So I thought that I can draw a white "border" to the line, and I tried to do this creating other two white lines to the left and to the rigth of the original one. 所以我认为我可以在线上绘制一个白色的“边框”,我试图在左边创建另外两条白色线条并在原始线条的边缘创建。 But the result is poor.
但结果很糟糕。
Is there a better way to accomplish this goal? 有没有更好的方法来实现这一目标?
As mentioned by @Jesper, draw the line first using a thicker Stroke
(as seen in this answer ). 如@Jesper所述,首先使用较粗的
Stroke
绘制线条(如本答案所示 )。
The black outline on the letters has width 2. 字母上的黑色轮廓宽度为2。
g.setStroke(new BasicStroke(2f));
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