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Manipulating Images 65<br />
• To move the fixed point, move the cursor over the fixed point symbol<br />
until the cursor changes, then drag (this then lets you perform arc<br />
rotations). To move the entire region, drag from elsewhere within the<br />
region.<br />
• Watch the HintLine for details on many key-assisted options such as<br />
skew, squash/stretch, and perspective effects. In this respect, the tool<br />
works almost exactly like the regular Deform Tool (see p. 62).<br />
4. Click the button again to return to standard mode.<br />
To add a new node:<br />
• Double-click on a line segment.<br />
OR<br />
• Click on a line segment then select the Add Node button on the<br />
displayed Context toolbar.<br />
The new node appears, along with extra nodes where the new connecting lines<br />
intersect existing lines. Adding a new node further subdivides the mesh.<br />
To delete one or more nodes:<br />
1. Select the node(s).<br />
2. Press Delete.<br />
OR<br />
Click the Delete node(s) button on the displayed Context toolbar.<br />
Deleting a node also deletes lines and nodes connected to it. If you delete a corner<br />
or edge node, the overall mesh area will decrease. To delete a specific grid line and<br />
its nodes, click to place a marker on the line, then press Delete.<br />
The bendability of line segments depends on the type of nodes at either end. You<br />
can change a node from one type to another simply by selecting it and using the<br />
Context toolbar buttons:<br />
Mesh nodes can be sharp, smooth, or symmetric (see illustrations below).<br />
Changing a node's type lets you control how much the curved segments bend on<br />
either side of the node. To determine a node's current type, select it and check to<br />
see which Mesh Node button on the toolbar is also selected.