View Management.

 

There are two types of views, natural views (NVIW) and complex views (CVIW). A complex view can contain up to 10 natural views. A natural view has a view type. There are several view types:

2D (for Design)

TOP, FRONT, LEFT, RIGHT, BACK, BOTTOM. (these are parallel to axes)

AXONOMETRIC (sometimes called ISOMETRIC)

PERSPECTIVE

The perspective views are similar to AXONOMETRIC views but have a focus distance. 2D views have the X axis and the Y axis according to 2D CAD systems and can be used to create drawings.

Although plotting PERSPECTIVE views produces better results than AXONOMETRIC views, it is easier to use AXONOMETRIC views because it is not possible to pan PERSPECTIVE views.

There are immediate actions available on views using the keyboard.

PG-UP Zoom in. Put the cursor on a view and push PG-UP. The view is zoomed out around cursor. Cannot be done on perspective views.
PG-DOWN Zoom out. Put the cursor on a view and push PG-DOWN. The view is zoomed in around cursor. This cannot be performed on perspective views.
END Panning. Put the cursor on a view and push END. The view is panned, and the position of the cursor becomes the center of the view. This cannot be performed on perspective views.
UP Reset. Resets the view to its original position. Cannot be performed while in hidden line mode.
INSERT Reduce focus distance. This can only be done on perspective views.
DELETE Increase focus distance. This can only be done on perspective views.
ARROWS Rotations. Can only be done on perspective or axonometric views. Cannot be done while in hidden line mode.

Main View Management Menu.
Create a single view.
Create a complex view.
Create a complex view with single views.
Recall a view.
Fixes a view partition.

Creates a complex view that can be recalled.

Display Modes.

The following parameters are important to customize Display Mode.

Seg/Curv: Number of segments per curve (default 32).

Seg/Circ: Number of segments per circle (default 32).

Iso/Patch: Number of isoparametric by patch (default 1).

Arrow: Defines if arrows must be displayed at the end of a line indicating the end of the line. This parameter does not work in hidden line mode. (default YES)

Disp/Text: Texts can be displayed NORMAL, TURBO (using a fast font), FRAME, or NONE.

Patches: Patches can be displayed as in wireframe or as in polyhedron.

Polyhedron: Polyhedron can be displayed in wireframe or in hidden line. It may apply to patches also. The hidden-line algorithm of Minos is efficient. It is better to activate it.

Dgn Frame: Select YES if you want to display the frames of the Designs.

Smooth: Applies only to hidden line mode. Defines if it is necessary to display frontier between smooth facets. (Default YES).

Views frame.
Target point.
Eye point.
Set display mode to wireframe and update screen.
Set display mode to hidden line and update screen.
Create immediate views.

Main Immediate view Menu.
Create 2D view.
Create a top view.
Create a front view.
Create a left view.
Create a bottom view.
Create a back view.
Create a right view.
Create an axonometric view.
Create a perspective view.
Create a multiple view.

Copyright © Régis Le Boité 1998