| Value | Meaning |
|---|---|
| operationUnion0 | Create regions where either subject or clip polygons (or both) are filled. |
| operationDifference1 | Create regions where subject polygons are filled except where clip polygons are filled. |
| operationIntersection2 | Create regions where both subject and clip polygons are filled. |
| operationXor3 | Create regions where either subject or clip polygons are filled but not where both are filled. |