C#使用Matrix执行缩放的方法

本文实例讲述了c#使用matrix执行缩放的方法。分享给大家供大家参考。具体实现方法如下：

using system;
using system.collections.generic;
using system.componentmodel;
using system.data;
using system.drawing;
using system.text;
using system.windows.forms;
using system.drawing.drawing2d;
namespace advanced_drawing
{
  public partial class form4 : form
  {
    public form4()
    {
      initializecomponent();
    }
    private void button1_click(object sender, eventargs e)
    {
      //使用转换将单位设置为英寸
      graphics g=this.creategraphics();
      matrix matrix = new matrix();
      matrix.scale(g.dpix, g.dpiy);
      g.transform = matrix;
      font rulerfont = new font("ms sans serif", 8.25f / g.dpiy);
      pen blackpen=new pen(color.black,0);
      float rulerfontheight = rulerfont.getheight(g);
      rectanglef rulerrect = new rectanglef(0, 0, 6.5f, rulerfontheight * 1.5f);
      g.drawrectangle(blackpen, rulerrect.x, rulerrect.y, rulerrect.width, rulerrect.height);
      brush brush = system.drawing.brushes.red;
      g.drawstring("zhuzhao", rulerfont, brush, rulerrect);
    }
  }
}

希望本文所述对大家的c#程序设计有所帮助。