how to plot a point on a sphere.

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luca antonioli 2019-10-7

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https://ww2.mathworks.cn/matlabcentral/answers/484016-how-to-plot-a-point-on-a-sphere

评论： Adam Danz 2019-10-8

hi everybody..

I have a sphere with r=12.6 and center in [0 0 0]....I have on the plane z=-15 a series of points that i should plot on the sphere surface keeping into account the arclength of this projection the projection is centerd in (0 0 -15).. I've started with finding the angle that generates such a projection... arclength+radius*angle

but now i dont know what to do

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darova 2019-10-8

Use this simple scheme to get Z coordinate

Adam Danz 2019-10-8

I'm wondering the same thing Bjorn Gustavsson is wondering. If the floor plane was at depth -12.6 I could understand how you want to wrap the coordinate to the sphere. But the floor plane is at -15 which would give it a different radius.

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