Overview

Filters provide a simple mechanism for selecting drawing objects that meet certain criteria. In the AutoCAD Map 3D UI, a basic filter can be used to select drawing objects for an export operation.

A basic filter has options for filtering based on combinations of layer names, object classification, and block names. Custom filters can filter based on other criteria. Both types are based on the Filters.ObjectFilter class.

An ObjectFilterGroup can combine multiple filters into a single filter operation.

Objects for working with filters are in the Autodesk.Gis.Map.Filters namespace.