Processing of horizontal signatures

The processing of hachures is carried out during the removal of hachures if the "Contour Line Generalization" dialog box is set to "Remove contour line labels." For each label, its association with the hachure being deleted is checked. If the label belongs to the hachure being removed, the label is deleted. The association of the label with the hachure is determined by matching the absolute height value from the label text with the height value from the hachure semantics, as well as by the proximity of the label's first metric point to the hachure. A processing tolerance called "Maximum distance from contour line to label" is used. The label belongs to the hachure if the height from the label text matches the height from the hachure semantics and if the distance from the label's first metric point to the hachure is less than the distance specified in the "Maximum distance from contour line to label" field.