how to define the location of points within a shape that is invariant to shape transformation?
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How can we define the location of points within a shape such that when the shape goes through horizontal or vertical transform, the definition of its location remains almost unchanged? For example, while triangle A transforms to triangle B, the location of P remains similar with respect to the triangle. Obviously, Cartesian coordinates will not work here as they would change a lot after the transformation.
The solution better be general for all type of shapes, such as quadrangle, hexagon or even circle. Thanks a lot!
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Image Analyst
2019 年 7 月 15 日
There are lots of points inside the triangle that are still inside it after you transform the triangle's shape and location.
If you convert it to a digital image, (say with poly2mask), you can simply AND the two digital images.
Otherwise to do it analytically for an original triangle, and a new triangle that's overlapped, and thus having a common/overlap region that may have anywhere from 3 to 6 sides will be very tricky.
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