In a large square, the need to draw a lot of a circle with the same size, have been able to draw a circle, ask what should do to achieve continuous circle, draw until full, vs2013 is the use

CodePudding user response:

Have a great god can say what to get

CodePudding user response:

Has draw a circle, the radius has settled, then right, it is ok to find a good circle, square, circular trajectory is a square, so in other painting circle, circle can be in the square, you can literally painting,

CodePudding user response:

Center moving, judge whether can

CodePudding user response:

If you want to limit in the rectangular area, SelectClipRgn clipping area first
Cycle the Ellipse
change coordinatesSelectClipRgn restore the clipping area