Cage Transform is ready for testing (implemented the last bit: extrapolation)
That was a tough task. The points outside of the outline of the cage are not defined in green coordinates, so we would either need to: - chop the grid into smaller chunks near the outline, which would make the grid non-uniform with lots of inherited complications - extrapolate the points near the outline of the cage based on the internal points which lay inside the cage polygon. I chose the latter approach. It is much easier to implement, but has one small drawback. Sometimes, if your cage is too narrow (e.g. 8-16px wide), the interpolator may not find the points suitable for a base. In such a case the corresponding cell of the grind will be dropped from the processing and you may see an empty cell. The cell sizes: 1) Preview: 16 px 2) Real transform: 8 px So when creating the cage, just ensure you are not creating the cage polygons more narrow than 8 px. This limitation applies only to the non-deformed grid. The deformed one can have arbitrary configuration. CCMAIL:kimageshop@kde.org
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