Processing of hachures

Processing of hachures is performed after processing horizontals if the "Delete Hachures" mode is set in the dialog. Objects whose types are listed in the "Hachures" tab of the dialog are processed.

If a hachure does not belong to any of the remaining horizontals, it is deleted. The belonging of a hachure to a horizontal is determined by the proximity of the first point of the hachure metric and the current point of the horizontal metric. The processing tolerance "Maximum distance from contour to hachure" is used in this case.

During processing, the minimum distance between the hachure and all remaining horizontals is determined. If the found minimum distance is greater than the tolerance, meaning the hachure is far from all horizontals, then the hachure is deleted.