General Cylinder

Purpose:

To create or modify a general cylinder.

Prerequisites:

If points in the cylinder directrix are to be indicated in a view, a plane view perpendicular to the generator axis of the general cylinder must exist.

Instructions:

• In create mode, the user must first select the generator axis of the general cylinder. When this has been done, any number of points forming the directrix may be entered. The points may either be given as coordinates in a form or (using the Indicate button) indicated in the drawing. The Apply button should be used to enter all points but the last one, in which case the Ok button is used. This will close the form, and a second form, letting the user set the limits and end point angles of the cylinder, will appear.

• In modify mode, the cylinder definition may be changed.

Options:

In create mode, the user may use Options when indicating points in the drawing to get back to the form for entering points.

Result:

• In create mode, a new general cylinder will be created and selected.

• In modify mode, the selected general cylinder will be updated with the new definition data.