WPF - 如何制作绘制方格纸状正方形的画笔? [英] WPF - How can I make a brush that paints graph-paper-like squares?

问题描述

如何创建一个画笔来绘制一个规则的、重复的网格，该网格由 1 个单位的粗线在水平轴和垂直轴上均匀分布?想象一下方格纸，如果你愿意的话.

How might I create a brush that paints a regular, repeated grid of 1-unit thick lines spaced evenly in both the horizontal and vertical axes? Imagine graph paper, if you will.

理想情况下，该解决方案将允许控制用于线条和背景(正方形内的区域)的画笔.通过这种方式，背景可以是透明的，这样网格就可以用作叠加层.

Ideally the solution would allow control over the brushes used for the lines and the background (the regions within the squares). In this way the background could be transparent, so that the grid could serve as an overlay.

编辑下面这张图显示了 Tom 的回答结果:

EDIT Here is an image that shows the result of Tom's answer below:

在本例中，使用网格来合成三层以显示网格是真正透明的.

For this example a grid was used to composite three layers to show that the grid is truly transparent.

推荐答案

来自 http://msdn.microsoft.com/en-us/library/aa480159.aspx

<DrawingBrush Viewport="0,0,10,10" 
              ViewportUnits="Absolute"
              TileMode="Tile">
  <DrawingBrush.Drawing>
    <DrawingGroup>
      <GeometryDrawing Geometry="M0,0 L1,0 1,0.1, 0,0.1Z" Brush="Green" />
      <GeometryDrawing Geometry="M0,0 L0,1 0.1,1, 0.1,0Z" Brush="Green" />
    </DrawingGroup>
  </DrawingBrush.Drawing>
</DrawingBrush>

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