I'm trying to animate an object along a path...while it's moving it should continue to "point" towards another object (or CGPoint). What should I be looking for in the framework (Cocoa-Touch) to accomplish this? Maybe something in CAShapeLayer? Though I think that's more for animating the path itself... It's not jumping out at me...
我试图沿路径动画一个物体......当它移动时它应该继续“指向”另一个物体（或CGPoint）。我应该在框架（Cocoa-Touch）中寻找什么才能实现这一目标？也许是CAShapeLayer的东西？虽然我认为这更像是为了让路径本身动起来......但它并没有跳出来......
1 个解决方案
#1
0
I believe you're looking for the "bearing" between two points. Here's a good starting point to get you going.
我相信你正在寻找两点之间的“轴承”。这是一个很好的起点让你前进。
#1
0
I believe you're looking for the "bearing" between two points. Here's a good starting point to get you going.
我相信你正在寻找两点之间的“轴承”。这是一个很好的起点让你前进。