[postgis-users] get transformation matrix for st_affine using before and after polygons

Rhys A.D. Stewart rhys.stewart at gmail.com
Sun Jul 29 09:45:55 PDT 2018

Greetings folks,

Lets say I have two polygons, A and B. These polygons are identical
(I.E. st_astext(A) = st_astext(B) is true, vertex for vertex clones).
If I were to move (both translate and rotate)  B somewhere else (using
QGIS for example) is it possible to generate the transformation
matrixthat could be used in st_affine to accomplish the same using


Peace & Love|Live Long & Prosper

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