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28.4.2 Controlling Perspective and Camera Parameters

Perspective and other camera parameters are defined in the Camera Parameters panel, which you can open by clicking on the Camera... button in the Views panel (Figure  28.4.1).

Display $\rightarrow$ Views...



Perspective and Orthographic Views


You may choose to display either an orthographic view or a perspective view of your graphics. To show a perspective view (the default), select Perspective in the Projection drop-down list in the Camera Parameters panel (Figure  28.4.2). To turn off perspective, select Orthographic in the Projection drop-down list.



Modifying Camera Parameters


Instead of translating, rotating, and zooming the display as described in Section  28.4.1, you may sometimes want to modify the "camera'' through which you are viewing the graphics display.

The camera is defined by four parameters: position, target, up vector, and field, as illustrated in Figure  28.4.5. "Position'' is the camera's location. "Target'' is the location of the point the camera is looking at, and "up vector'' indicates to the camera which way is up. "Field'' indicates the field of view (width and height) of the display.

Figure 28.4.5: Camera Definition
figure

To modify the camera's position, select Position in the Camera drop-down list and specify the X, Y, and Z coordinates of the desired point. To modify the target location, select Target in the Camera drop-down list and specify the coordinates of the desired point. Select Up Vector to change the up direction. The up vector is the vector from (0,0,0) to the specified ( X,Y,Z) point. Finally, to change the field of view, select Field in the Camera list and enter the X (horizontal) and Y (vertical) field distances.

figure   

Click Apply after you change each camera parameter ( Position, Target, Up Vector, and Field).


next up previous contents index Previous: 28.4.1 Scaling, Centering, Rotating,
Up: 28.4 Modifying the View
Next: 28.4.3 Saving and Restoring
© Fluent Inc. 2006-09-20