View rotation

The following command are available for view rotation operations:

  • The RTROT (Real-Time Constrained Sphere) command rotates 3D drawings in real-time.
  • The RTROTCTR (Real-time Sphere Center) command freely rotates 3D drawings in real-time about a user-defined center point.
  • The RTROTF (Real-time Free Sphere) command freely rotates 3D drawings in real-time.
  • The RTROTX, RTROTY and RTROTZ commands rotates 3D drawings in real-time about the x-, y- or z-screen axis.
  • The DDVPOINT command sets 3D viewpoints or plan view, through a dialog box (short for "dynamic dialog view point").
  • The PLAN command restores the plan (top) view.
  • The VPOINT command changes the 3D viewpoint.
Note:
  • If the CONTINUOUSMOTION system variable is set, the view rotation continues until you press the Esc key to conclude the command.
  • View rotation commands should not be used when working in 2D. Use the PLAN command or the LookFrom control to restore top view.

Rotating a view freely

  1. Launch the RTROT, RTROTF, RTROTX, RTROTY or RTROTZ command.

    The shape of the cursor changes according to the selected command.

  2. Hold down the left mouse button, then move the mouse.

  3. (option) Right-click to display a context menu.

    The options are:

    • Exit: exits the command.
    • Pan: switches to the RTPAN command.
    • Zoom: switches to the RTZOOM command.
    • Constraint Sphere: switches to the RTROT command.
    • Sphere: switches to the RTROTF command.
  4. Press the Esc key to exit the command.

Using Preset Viewpoints

Note: Switch off Perspective mode before starting the command.
  1. Launch the DDVPOINT command.

    The Set Viewpoint dialog box appears.

  2. Click the Angle Precision button to set the display mode for the Set Viewpoint dialog box.

    The options are: 45°, 15° or 5°.

    The Horizontal and Vertical select panes are divided accordingly.

  3. Click an angle in the Horizontal and Vertical select panes.

    The view orientation is updated.

  4. (option) Click the Plan button to restore the plan (top) view.

  5. (option) Repeatedly click the Previous button to restore previous viewpoints.

  6. To conclude the command:
    • Click the OK button to keep the current view.
    • Click the Cancel button to restore the original view.