Warp just a subset of a plot

Question

David 2013-2-13

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https://ww2.mathworks.cn/matlabcentral/answers/63373-warp-just-a-subset-of-a-plot

Hello, I'm trying to warp and move around aspects of a plot. I'm using Doug's George body figure. http://blogs.mathworks.com/images/steve/37/maketform_tformfwd_01.png http://blogs.mathworks.com/images/steve/37/george.mat

And I'm trying to find a way to, say, just bend it's head to the side, or say stretch it's sides so it looks like it has arms.

I image that i could some how tessellate the points and use this to some how pull everything, but I really don't know where to start.

any help would be greatly appreciated.

More specifically, goal is to be able to pick a point on this body outline, move it to some other location, and have the neighboring points move with it in a smooth way.

now, this doesn't need to be that pretty, just wanna make it do "basic" warps, like nod and stuff. doesn't need to be very clean.

thanks!

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Answer 1

Image Analyst 2013-2-13

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https://ww2.mathworks.cn/matlabcentral/answers/63373-warp-just-a-subset-of-a-plot#answer_74970

See Steve's blog: http://blogs.mathworks.com/steve/2006/08/04/spatial-transformations-defining-and-applying-custom-transforms/

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David 2013-2-13

i'll definitely look at that right now. I'll close this question a little later when I think i have a handle on the problem (so that I don't start spreading my question around if I run into issues).

thank you, big fan of your posts!

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