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PathAlongArc

Transforms a path to a coordinate system in which the 'axis' arc is vertical or horizontal.

Name	Type	Description
inPath	Path	Input path
inAxis	Arc2D	Input axis arc
inAxisType	Axis	Type of axis the input axis arc is parallel to
inAxisCoordinate	Real	Coordinate of the axis arc
inInverse	Bool	Switches to the inverse operation
outPath	Path	Transformed path

Applications

Usually used to revert an ImageAlongArc transformation.

Description

This filter transforms each point in inPath the same way how PointAlongArc does.

Examples

ImageAlongArc performed on the sample image with inAxisType = X and inScanWidth = 50. Blue path on output image was reprojected on original image (as orange path) using PathAlongArc with inAxisType = X, inAxisCoordinate = 25, inInverse = true. ImageAlongArc and PathAlongArc used the same arc for transformations.

Remarks

No new points are being added to input path during transformation, and this may lead to some "distortions" of path. This is especially visible on long, straight portions of input path, which are described with only 2 points: the beginning one and the ending one. After transformation, such part of path is still a line, but it may not be corresponding to the transformed image. Easy way to overcome this problem is to increase number of points creating an transformed path.

Complexity Level