旋转矩形在安卓2D图形? [英] rotate rect in android 2d graphics?
问题描述
我要旋转矩形(不仅画出旋转的矩形,但得到了新的旋转值)在Android中,我试图
i want to rotate a rect(not only draw rotated rect but get the new rotated value ) in android ,i tried
canvas.rotate
但它并没有反映在矩形的新值它只是画一个旋转的拍摄。
but it didn't reflect the new values on the rect its just draw a rotated rec.
这是没有帮助我,因为我使用了矩形的碰撞检测
And this is not helping me because i used the rect in collision detection
有没有办法来旋转矩形的模型不仅画一个旋转的?
感谢
推荐答案
我同意grWEn,请尝试使用的OpenGL-ES。你可以看到这篇博客,它真的帮助了我。 这里:<一href="http://blog.jayway.com/2010/01/01/opengl-es-tutorial-for-android-%E2%80%93-part-iii-%E2%80%93-transformations/" rel="nofollow">http://blog.jayway.com/2010/01/01/opengl-es-tutorial-for-android-%E2%80%93-part-iii-%E2%80%93-transformations/
i agree with grWEn, try using opengl-es. you can read this blog, it really helped me. Here: http://blog.jayway.com/2010/01/01/opengl-es-tutorial-for-android-%E2%80%93-part-iii-%E2%80%93-transformations/
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