如何用cocos2d绘制一个实心圆圈的iPhone [英] How to draw a solid circle with cocos2d for iPhone

问题描述

可以用cocos2d绘制一个圆圈吗？
使用drawCircle（）函数可以完成一个圆圈，但是有办法以某种颜色填充它吗？

Is it possible to draw a filled circle with cocos2d ? An outlined circle can be done using the drawCircle() function, but is there a way to fill it in a certain color? Perhaps by using pure OpenGL?

推荐答案

在DrawingPrimitives.m中，在drawCricle中更改：

In DrawingPrimitives.m, change this in drawCricle:

glDrawArrays(GL_LINE_STRIP, 0, segs+additionalSegment);

到：

glDrawArrays(GL_TRIANGLE_FAN, 0, segs+additionalSegment);

您可以在这里阅读更多有关opengl原语的信息：
http://www.informit.com/articles/article.aspx?p=461848

You can read more about opengl primitives here: http://www.informit.com/articles/article.aspx?p=461848

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