To Work With Parallel and Perspective Views

Define a Perspective View of a 3D Model Using DVIEW

1. At the Command prompt, enter DVIEW.
2. Select the objects to display.
3. Enter ca (Camera).

   By default, a camera point is set at the center of the drawing.

4. Adjust the view as if you're aiming a camera.

   A representation of a house shows the current viewing angle. You can set your view dynamically by moving the crosshairs and clicking.

5. To switch between angle-input methods, enter t (Toggle Angle).

   You also can adjust the view with one of two angle-input methods.

   • For Enter Angle From The XY Plane, enter an angle up or down relative to the XY plane of the current UCS. The default, 90 degrees, points the camera straight down from above.

     After you enter the angle, the camera is locked at that elevation. You can rotate the camera around the target relative to the X axis of the current UCS.

   • For Enter Angle In The XY Plane From The X Axis, rotate the camera around the target relative to the X axis of the current UCS.
6. To turn on the perspective view, enter d (Distance).
7. Enter a distance, or press Enter to set the perspective view.

   You can use the slider bar to set the distance between the selected objects and the camera, or you can enter a real number. If the target and camera points are very close (or if the Zoom option is set high), you might see only a small part of your drawing.

Turn off a Perspective View Using DVIEW

1. At the Command prompt, enter DVIEW.
2. Select the objects to display.
3. Enter o (Off).

   Perspective is turned off and the view is restored to a parallel projection.

Create a Parallel Projection Dynamically

1. At the Command prompt, enter DVIEW.
2. Do one of the following:
   • Select the objects to display and press Enter.
   • Press Enter without selecting objects to see a representation of a house that shows the current viewing angle.
3. Enter ca (Camera).

   By default, a camera point is set at the center of the drawing.

4. Adjust the view as if you're aiming a camera.

   You can set your view dynamically by moving the crosshairs and clicking.

5. To switch between the angle-input methods, enter t (Toggle Angle).

   You can also adjust the view with one of two angle-input methods.

   • For Enter Angle From The XY Plane, enter an angle up or down relative to the XY plane of the current UCS. The default, 90 degrees, points the camera straight down from above.

     After you enter the angle, the camera is locked at that elevation. You can rotate the camera around the target relative to the X axis of the current UCS.

   • For Enter Angle In The XY Plane From The X Axis, rotate the camera around the target relative to the X axis of the current UCS.
6. Press Enter to exit and apply the projection.