将图形绘图从android移植到标准Java [英] Porting graphics drawing from android to standard java

问题描述

我有一个android应用程序，可将图像直接绘制到画布上. 它特别使用路径和贝塞尔曲线.

I have an android application which draws images directly onto the canvas. It uses notably paths and beziers.

我现在需要将此端口移植到用标准Java编写的Windows应用程序中，并且很难找到要使用的正确图形库.

I now need to port this to a windows app written in standard java and am having difficulty in finding the correct graphics library to use.

我需要在内存中创建带路径的位图. 该路径必须能够容纳线条，贝塞尔曲线，椭圆形和空心矩形. 然后，将生成的图像多次渗入输出图形中.

I need to create bitmaps in memory, drawn with a path. The path needs to be able to hold lines, beziers, ovals and hollow rectangles. The resulting image is then blitted into the output graphic a number of times.

我看过Graphics2D，但是路径绘制不允许创建椭圆作为其一部分.

I have looked at Graphics2D, but the path drawing does not permit creating ovals as a part of it.

是否有解决方法或其他标准库? java中是否有与Android画布相当的东西?

Is there a workaround or another standard library available ? Is there an android canvas equivalent within java ?

推荐答案

Java2D中的路径(以java.awt.geom.Path2D或java.awt.geom.GeneralPath的形式)可以附加任何java.awt.Shape. java.awt.geom.Ellipse2D表示圆形或椭圆形，并且实现了java.awt.Shape，因此可以将其添加到Path2D中.

Paths in Java2D (in the form of java.awt.geom.Path2D or java.awt.geom.GeneralPath) can have any java.awt.Shape appended to them. java.awt.geom.Ellipse2D represents a circle or oval, and it implements java.awt.Shape so you can add one to a Path2D.

您可以在java.awt.image.BufferedImage上绘制路径，并将缓冲的图像绘制到屏幕上.

You can draw paths onto a java.awt.image.BufferedImage and draw the buffered image onto the screen.

您真正需要的是Java2D API.

The Java2D API really is what you need.

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