2.7.1. General rules for drawing polygonal items

Sections of an item that are straight lines are drawn using two vertexes (for the beginning and ending points):

Correct Incorrect

The green arrows on the drawing below show correct usage; the red ones — incorrect usage (because there are too many vertexes):

Curved sections of items should be drawn using as few vertexes as possible (while ensuring that the outline remains smooth at all map scales (all the way to 19):

Correct Incorrect

The green arrows on the drawing show correct usage; the red ones — incorrect usage (because there are not enough vertexes to make the outline sufficiently smooth):