Curve Pen¶

Reference

The Curve Pen tool allows you to construct and edit curves rapidly.

Usage¶

Extrude Point: LMB click to add a new point connected to the currently selected point. The new point will have handle type of Vector. Shift-LMB click will add point as type Auto. However, the handle type switches to Align when handles are moved (See Move Point).
Delete Point: Ctrl-LMB click on an existing point to delete it.
Insert Point: Ctrl-LMB click on a Curve Segment to insert a new control point between the two adjacent control points. Ctrl-LMB click and drag to control the handles of the inserted points.
Move Segment: LMB drag on a segment in between two control points to adjust the handles, changing the shape of the curve without affecting the location of any control points.
Select Point: LMB click to select a single point or handle at a time.
Move Point: LMB drag to move existing points or handles. With an endpoint of a stroke selected, click and drag on empty space to Extrude Point and move the handle at the same time.
Close Stroke: Make the stroke Cyclic by clicking the endpoints.
Cycle Handle Type: Double LMB click on the control point to cycle through all handle types.

Free-Align Toggle: Hold LeftCtrl while dragging a handle to switch between Free and Align handle types. Can be used to create sharp corners along the curve.
Move Entire Point: Hold LeftAlt while dragging a handle to move the entire point.
Snap Handle Angle: Hold LeftShift while dragging a handle to limit the movement of the handle to multiples 45 degrees, so the handle can only be vertical, horizontal or diagonal.