Simplify Geometry dialog

This dialog is used when simplifying polygon geometry data. It is used to select thinning and correction options for a selection of polygons.

The dialog is displayed by selecting Selection | Simplify geometry. Show image

dialog option		Description
Thinning		Tick to reduce the number of vertices of selected objects according to the thinning options defined.
Correction		Tick to carry out correction of self intersecting polygons. See Simplifying object geometry for further information.
Thinning Options	Min Segment Length	The distance between vertices in map unit length (m or ft). Vertices at a distance less than the minimum segment length from another vertex will be removed by the thinning process.
	Triangle Height	Minimum triangle height. Vertices forming a triangle height less than the triangle height specified will be removed by the thinning process.
	Maximum Change in Area	If as a result of thinning, the change in area of an object is greater than this value, no thinning will be carried out on that object.