Project

Creates curves or points on a surface that are the intersections of the surface and curves or points projected toward the construction plane.

Steps:

1. Select curves and points to project.

2. Select surfaces and polysurfaces.

Notes

• You can select all the projection objects and target surfaces before starting the command.

• The curves are projected vertical to the construction plane that is active when the surface selection is completed.

• If the projection misses the selected surfaces and polysurfaces, a curve will not be created. Make sure the correct construction plane is active when you select the surfaces.

• The Pull command will suck the curve back toward the surface by closest points. The Project command will not work in situations where you want to pull a curve onto a cylinder when the curve goes most of the way around the cylinder. Use the Pull command in this case.

• The Project command creates complex curves that can be simplified with the Rebuild command. You will need to be careful with the Rebuild command and use enough points to keep the curve trimmable.

• The Project command can be faster than Extrude followed by Trim or Split.

• Smooth projection curves create smooth trim curves. Basic shapes like ellipses, circles, lines, and free-form curves work well for projection curves.

Options

DeleteInput

Pull

Creates curves and points on a surface that are the intersections of curve or points pulled toward a surface in the surface normal direction.

Steps:

1. Select curves.

2. Select the surface to pull the curves back to.

Notes

• When exiting the command, the newly created curves will be always be selected without regard for pre-selection.

• Use the Pull command to create complex trim curves, such as a curve that goes most of the way around a cylinder.

• Use the Project command if you know what the trim curve looks like from a single viewport.

• Use Pull command if you know where on the surface (in 3 D) the trim path should be. Use curve commands to draw the curve, drag the control points or edit points to move the curve near the surface. Then, use the Pull command to pull the curve onto the surface. You can also use the InterpCrvOnSrf command to create a curve on a surface.

• When drawing the curves, use the fewest control points possible. This guarantees the smoothest possible trim curve.

Options

DeleteInput

ProjectToCPlane

Flattens objects onto the construction plane.

Steps:

• Select objects.

• Choose to either keep or delete the input objects.

• The objects will project to the construction plane in the viewport that is current when the command ends.

Note: The projected object has the same control point structure as the original object, except that all the control points are projected to the construction plane. This command works on points, curves, surfaces, and polysurfaces.