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问题描述
我有三个带有 x 和 y 值的点.我真正想要的是实际向量所在的位置(查看提供的图像).你能帮助我吗 ?我尝试了一些 atan2 和平行四边形,但不幸的是没有成功.
I have three points with x and y values to start with. What I actually want is the position where the actual vector would go (look at image provided). Can you help me ? I tried around a little bit with atan2 and parallelograms, but unfortunately without success.
推荐答案再次提醒,我可能会遗漏一些东西,但我认为这是一个非常简单的向量相加:>
Again, I'll remind that I might be missing something, but I think this is pretty simple addition of vectors:
let point A be (700, 500) let point B be (400, 400) let point C be (650, 100) let point D be (???, ???) the vector from A to B is: (-300, -100) // i.e. x = B-A, 400 - 700, etc the vector from A to C is: (-50, -400) Adding these together yields the vector from A to D: (-350, -500). Adding that vector to point A yields the coordinates of the point D: (350, 0)更多推荐
如何获得两个向量之间的向量?
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