If necessary, you can make changes to an exclusion mask, such as adding vertices or reshaping a polygon.
The commands on the Vector Editing Toolbar, which you use to modify an exclusion mask, are as described in the following table.
| Button | Name | Description |
|---|---|---|
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Find | Select a shape and identify the start and end vertices. |
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Add Vertices | Create a new vertex where you click. The new vertex is connected to the two closest existing vertices.
Tip: To move an existing vertex, drag it to a new location. To insert a new vertex on an existing line, hold down the Ctrl+Alt keys, and then click near the line. The new vertex will snap to the line and the shape of the line will remain the same.
|
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Reshape | Reshape a selected polygon. The first click adds a vertex at the snap indicator. Drag, and then click, as necessary, to reshape the polygon. Double-click to complete the new shape. |
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Start Vertex | Move the cursor to the start vertex in a selected shape. |
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Previous Vertex | Move the cursor from one vertex to the previous vertex of a selected shape. |
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Midpoint | Move the cursor halfway between two vertices in the direction of the line. |
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Next Vertex | Move the cursor from one vertex to the previous vertex in a selected shape. |
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End Vertex | Move the cursor to the end vertex in a selected shape. |
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Show Vertices | Increase the visibility of the vertices in a shape. |
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Vertices | Open the Vertices window, which displays the vertex coordinates of the selected shape. |
To modify an exclusion mask
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In Mosaic Tool window, do one of the following:
- To modify a global mask, under Auxiliary Layers, select Global Mask.
- To modify a local mask, Source Images, expand the input image with the mask you want to modify, and then click Local mask.
- On the Editing toolbar, click Vector Editing Toolbar, and then in the view pane, click the shape you want.
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Use the vector-editing tools to modify the mask shapes, as necessary.
Changes to the mask shapes are applied as you make them.