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Vector data handling

In the Fusion Vector Resource dialog, you can select options for processing your source files:

How Fusion handles geometry

Example Description Fusion handling
Self-intersecting polygons Self-intersecting polygon cycles. For example, “bow tie” figures.

Fusion might skip or might not process correctly.

Crossing cycles Polygon cycles that are not properly nested. For example, an inner cycle that is partly outside the outer cycle, or cycles that cross each other within a single polygon. Fusion might skip or might not process correctly.
Touching vertices Fusion allows polygon cycles with touching vertices. For example, outer cycle or inner cycle vertices that touch each other. This geometry is valid. Fusion processes correctly.
Identical coordinates Polygon cycle linestrings that have consecutive points within an XY tolerance that is equal to or less than 0.0003m. Fusion removes the duplicate vertices.
Spike Polygon cycles with “spikes.“ A spike is defined as an angle that is equal to or less than 3.15e-3 radians. Fusion removes the spike and merges the edges.
Gore Polygon cycles with “gores.” A gore is defined as an angle that is equal to or less than 3.15e-3 radians. Fusion removes the gore and merges the edges.
Zero area Polygon cycles with zero area. If the polygon is a triangle with an angle that is less than 3.15e-3 radians, Fusion treats it as a spike and removes it. After the spike is removed, the result is a polygon with zero area. Fusion removes the polygon with zero area.