This command unrolls polylines according to a curved axis. It is suitable to make longitudinal profiles of a curved way or a curved bridge for instance.
Requirements
Select the polyline(s) and/or the set(s) of polylines to unroll, then launch the command.
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Select the axis polyline.
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Wrong selection can be corrected using
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You can choose to reverse the axis using
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Optionally, apply an offset to the result either manually or automatically. In both cases, the reference altitude parameter is subtracted from the input heights. In other words, let 0 to keep true heights.
Polylines to unroll are supposed to follow the axis in 2D to minimize deformations due to the projection.