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Posted on 2007-12-21 14:27 济公 阅读(11816) 评论(3) 编辑 收藏 引用 所属分类: C#Asp.net
//数据初始化
string[] month=new string[12]{"一月","二月","三月","四月","五月","六月","七月","八月","九月","十月","十一月","十二月"};
float[] d=new float[12]{20.5F,60,10.8F,15.6F,30,70.9F,50.3F,30.7F,70,50.4F,30.8F,20};
//画图初始化
Bitmap bMap=new Bitmap(500,500);
Graphics gph=Graphics.FromImage(bMap);
gph.Clear(Color.White);
PointF cPt=new PointF(40,420);//中心点
PointF[] xPt=new PointF[3]{
new PointF(cPt.Y+15,cPt.Y),
new PointF(cPt.Y,cPt.Y-8),
new PointF(cPt.Y,cPt.Y+8)};//X轴三角形
PointF[] yPt=new PointF[3]{
new PointF(cPt.X,cPt.X-15),
new PointF(cPt.X+8,cPt.X),
new PointF(cPt.X-8,cPt.X)};//Y轴三角形
gph.DrawString("某工厂某产品月生产量图表",new Font("宋体",14),
Brushes.Black,new PointF(cPt.X+12,cPt.X));//图表标题
//画X轴
gph.DrawLine(Pens.Black,cPt.X,cPt.Y,cPt.Y,cPt.Y);
gph.DrawPolygon(Pens.Black,xPt);
gph.FillPolygon(new SolidBrush(Color.Black),xPt);
gph.DrawString("月份",new Font("宋体",12),
Brushes.Black,new PointF(cPt.Y+12,cPt.Y-10));
//画Y轴
gph.DrawLine(Pens.Black,cPt.X,cPt.Y,cPt.X,cPt.X);
gph.DrawPolygon(Pens.Black,yPt);
gph.FillPolygon(new SolidBrush(Color.Black),yPt);
gph.DrawString("单位(万)",new Font("宋体",12),Brushes.Black,new PointF(6,7));
for(int i=1;i<=12;i++ )
{
//画Y轴刻度
if(i<11)
{
gph.DrawString((i*10).ToString(),new Font("宋体",11),Brushes.Black,
new PointF(cPt.X-30,cPt.Y-i*30-6));
gph.DrawLine(Pens.Black,cPt.X-3,cPt.Y-i*30,cPt.X,cPt.Y-i*30);
}
//画X轴项目
gph.DrawString(month[i-1].Substring(0,1),new Font("宋体",11),Brushes.Black,
new PointF(cPt.X+i*30-5,cPt.Y+5));
gph.DrawString(month[i-1].Substring(1,1),new Font("宋体",11),
Brushes.Black,new PointF(cPt.X+i*30-5,cPt.Y+20));
if(month[i-1].Length>2)
gph.DrawString(month[i-1].Substring(2,1),new Font("宋体",11),
Brushes.Black,new PointF(cPt.X+i*30-5,cPt.Y+35));
//画点
gph.DrawEllipse(Pens.Black,cPt.X+i*30-1.5F,cPt.Y-d[i-1]*3-1.5F,3,3);
gph.FillEllipse(new SolidBrush(Color.Black),cPt.X+i*30-1.5F,cPt.Y-d[i-1]*3+1.5F,3,3);
//画数值
gph.DrawString(d[i-1].ToString(),new Font("宋体",11),Brushes.Black,
new PointF(cPt.X+i*30,cPt.Y-d[i-1]*3));
//画折线
if(i>1)
gph.DrawLine(Pens.Red,cPt.X+(i-1)*30,cPt.Y-d[i-2]*3,cPt.X+i*30,cPt.Y-d[i-1]*3);
}
//显示在pictureBox1控件中
this.pictureBox1.Image=bMap;
//保存输出图片
bMap.Save("c:\\test.bmp");
图片如下： 
Feedback
# re: 坐标系画图（C#）示例 回复 更多评论
2007-12-22 16:34 by
VERY GOOD!
# re: 坐标系画图（C#）示例 回复 更多评论
2009-07-11 16:36 by
好的很。
# re: 坐标系画图（C#）示例 回复 更多评论
2010-07-26 20:43 by
很好 学习
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