刚学会了在image上画线，如image1.Canvas.MoveTo(x,y);image1.Canvas.lineTo(x,y);，不知如何以x,y为圆心，

X

xiaoxiami2

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• 2002-07-20

• #1

刚学会了在image上画线，如image1.Canvas.MoveTo(x,y);image1.Canvas.lineTo(x,y);，不知如何以x,y为圆心，r为半径画圆？(10分)<br />刚学会了在image上画线，如image1.Canvas.MoveTo(x,y);image1.Canvas.lineTo(x,y);，不知如何以x,y为圆心，r为半径画圆？

 

T

tan_jian

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• 2002-07-20

• #2

Ellipse,内切园的正方形四个坐标点!你的分太少,看嘛,没人回答,只好我来了!

 

K

kkyy

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• 2002-07-20

• #3

四点座标是：x-r,y-r,x+r,y+r

 

卷

卷起千堆雪tyn

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• 2002-07-20

• #4

Image1.Canvas.Ellipse(x-r,y-r,x+r,y+r);

 

X

xiaoxiami2

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• 2002-07-22

• #5

多人接受答案了。