Region object

A bounded planar face consisting of lines, circles, arcs, elliptical arcs, and spline curves.

Each object in the region retains its layer, linetype, and color. AutoCAD deletes the original objects after converting them to regions and does not hatch the regions by default.

You can explode a region into the individual loops by using the Explode method. The Boolean method allows you to create composite 3D solids or regions from the intersection, union, or subtraction of a solid or region from another solid or region.

To create a region, use the AddRegion method. To edit or query a region, use the following methods and properties: