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PlanarCircles are distorted in anisotropic images
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Description

When creating a PlanarCircle in an anisotropic image (i.e., x-spacing != y-spacing), it is distorted and appears as an ellipsoid.

The reason for this is that currently 2D index coordinates are used for calculating the contour of the circle.

To solve this problem, 2D world coordinates should be used instead of 2D index coordinates for all PlanarFigure related calculations.

Event Timeline

[SVN revision 20204]
FIX (#2881): Change from index to world coordinates for storing PlanarFigure control points

The above commit fixes the problem of distortion for anisotropic images / geometries. Closing bug.