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Combine or subtract 2D shapes with the REGION command to create custom shapes


Sometimes you need to create a 2D profile that is a combination of the basic geometrical shapes that AutoCAD creates. While you might be able to use the PLINE command to create what you want, an easier way might be to combine or subtract simpler shapes.

For example, let’s say that you want to [...]

AutoCAD Tutorial: Create regions for mix-it-up, 2D/3D flexibility


A region is an interesting type of AutoCAD object. You can think of it as a 2D surface. Regions are always closed and they look like polylines, but AutoCAD can do some interesting things with regions, such as:

Calculate centroid, moments of inertia, and products of inertia Extrude them to create 3D solids Combine [...]