Mirea Andrei Marian wrote

> Hello Octave Community!

> I haven't used Octave since I graduated College and even letting

> "downtime" aside I wouldn't know how to approach it.

> I was hoping Octave had a function for outputting the transformation

> matrix, affine or otherwise (projective (conformal or otherwise)), by

> providing input of 2 or 3 sets of points. My guess is no but who knows?If

> not, how would I go about it for mapping points from a projected curved

> space or at least a plane space, onto a plane (projection plane)?Note that

> I don't know the nature of the curved surface or the orientation of the

> plane to be projected. All I have is a set of points on the projected and

> its corresponding set on the projection surface, respectively.

> Any help is warmly appreciated.

>

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https://lists.gnu.org/mailman/listinfo/help-octaveHi,

If your aim is to map points in one 2D space to another 2D space, then you

may find "cp2tform" useful:

https://octave.sourceforge.io/image/function/cp2tform.htmlThe function can't handle arbitrary transforms but the most common ones are

present including 2nd to 4th order polynomial.

Pantxo

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