Rhinoceros

Taper

Deforms an object by moving its control points toward a specified axis.

Steps:

1. Pick

   the start of an axis line to taper the objects around.

2. Pick the end of the axis line.

3. Pick the start distance.

4. Pick the end distance.

Options for taper axis

Note: The options for drawing the stretch axis are the same as the Line
command.

Normal

Angled

Vertical

FourPoint

Bisector

Perpendicular

Tangent

Extension

BothSides

Copy

Rigid

No

Individual selected objects are deformed.

Yes

Individual objects are not deformed, but are rotated along the backbone line.

Options

Flat

Creates a one-directional, one-dimensional taper.

Infinite

Yes

The deformation happens throughout the object, even if the axis is shorter.  

No

The deformation takes place only the length of the axis. The length of the axis is important. If the axis is shorter than the object, the taper applies only to that part of the object.

Shear

Deforms an object by shifting it at a specified angle parallel to the construction plane.

The Shear command is analogous to placing a deck of cards on a table and then gently pressing down on the top of the deck and moving your hand to the right or left. Each card slides over the card beneath it. A sheared rectangle converts to a parallelogram. The sides of the parallelogram will progressively lengthen as deformation proceeds but the top and bottom lines maintain their original length.

Steps:

1. Select

   objects.

2. Pick

   the origin point.

3. The base point does not move with the shear.

4. Pick the reference point that defines the first point of the shear angle.

5. Pick the shear angle.

Options

Copy

Taper