Drawing and editing vector objects : Modifying lines and curves
 
Modifying lines and curves
You can edit the properties of lines and curves. You can reshape a curve by changing its nodes the shape of the contour at a node by changing the node type, by modifying its line segments on either side of a node, or by connecting line segments. You can also cut a line segment. When you cut a closed path or contour, you open it. When you cut an open path or contour, you create two separate contours.
To edit a line or curve
Edit workspace 
1 On the Tools toolbar, choose the Pen tool .
2 On the Tool Options palette, click the Edit Mode button .
3 Select the shape.
4 Modify any of the settings on the Tool Options palette.
You can also edit the curve by clicking the Pick tool , selecting the curve, and modifying any of the settings on the Tool Options palette.
To adjust a line segment by changing the nodes
Edit workspace 
1 On the Tools toolbar, choose the Pen tool .
2 On the Tool Options palette, click the Edit Mode button .
3 Right-click a node, choose Node Type, and select one of the following options:
Convert to Line — straightens the segment before and after the node
Line Before — straightens the segment before the node
Line After — straightens the segment after the node
Curve Before — curves the segment before the node
Curve After — curves the segment after the node
To connect multiple line segments
Edit workspace 
1 Create as many connected line segments as you want.
2 On the Tool Options palette, click one of the following buttons:
Start New Contour — connects line segments in an open shape
Close Selected Open Contours — connects line segments in a closed shape
3 Click the Apply button .
You can save a set of Tool Options palette settings as presets. For more information, see Using and creating presets.
To cut a line segment
Edit workspace 
1 From the Tools toolbar, choose the Pen tool .
2 On the Tool Options palette, click the Knife Mode button .
3 Drag across the contour where you want to cut it.
When you click the Knife Mode button, you can cut through all selected contours in an object.