Overview
Union is a Boolean Operation. The Union boolean operation will combine two or more overlapping shapes into one larger shape, consisting of the outer contour of the shapes. At least two overlapping shapes must be selected for the Union command to have the desired effect. If the selected shapes are not overlapping, the Union command will have the same effect as the Combine command. This command is intended to work on shapes (closed paths) but open paths are affected by the Union command as well, however, the results are somewhat unpredictable. On open paths, the command works by first closing each path with a straight path segment between the end nodes, then combining the two shapes. Sometimes multiple paths are created.
Usage
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