This tutotial demonstrates how to draw a BSpline curve in PolyCAD. It demonstrates use of both the graphics window and the attribute panel.
1. Make sure that GRID and GRIDSNAP are both turned on from the status bar.
2. Select BSpline Curve from the create menu (Create -> BSpline Curve)
3. Go to the graphics window and one grid unit above the origin click and release the left mouse button. A control point, indicated by a small circle, will appear.
4. Without pressing any mouse buttons, drag the mouse one grid unit to the right. Then, click and release the mouse.
Completing the Curve >>>