TRIM SURFACE

This function allows the user to trim out a portion of a selected surface. The work is completed using the TRIM SURFACE window.

1.Select SELECT SURFACE to copy.

2.Select an existing closed curve as the trim line.

3.If there is no existing line, choose EXIT, and select DEFINE CURVE.

Figure 5.2.5 Define Trim Line

4.DEFINE TRIM LINE is displayed. See Figure 5.2.5

Select one of the curve types: line (polygon), circle, spline curve, or intersection line.

Select CLOSED or OPEN to close the defined line automatically or to leave it open.

Select points on the surface to form a line.

If the type is a CIRCLE, a circle will be formed and shown after two points are selected. The first point is the center, and the distance to the second point is the radius. The COORDINATE button then enables the user to select or define a point.

If the type is a LINE or SPLINE CURVE, the user needs to pick a sequence of points and select DONE to complete the definition of the line.

If the type is an INTERSECTION LINE, no point needs to be selected. The user selects another surface to define the intersection line.

During the point selection, the user can select REJECT POINT to deselect the last selected point.

After the curve is defined, select DONE

5.After the curve is defined or selected, select EXIT. The window, Figure 5.2.6, appears.

Figure 5.2.6 DYNAFORM Question window

Selecting YES will trim out the inner boundary of the selected/defined line. Selecting NO will retain the inner boundary of the selected/defined line.