Modify

1. Move and Delete

You can move or delete polygons and their vertices.

move_and_delete.gif

Tip

Multiple selection is supported.

2. Edit

Double click polygon or annotations list to open edit interface.

edit.gif

3. Repaint

repaint.gif

Tip

Repaint process:

  • Click the Repaint button to switch to repaint mode.

  • Click on a vertex of polygon to start repaint.

  • Click on another vertex of polygon to end repaint.

4. Adjust the Layer

layer.gif

Tip

Adjust the occlusion status of objects by changing the layer order.

5. Intersection, Union, Difference, and XOR

  • Intersection

intersect.gif

  • Union

union.gif

  • Difference

subtract.gif

  • XOR (Symmetric Difference)

exclude.gif

Tip

Always use the attributes of the first polygon.