#### Adding a 3D Grid

Select a 3D Grid check box to turn on the 3D grid for the selected view. Unlike the rulers, the origin of the 3D grid will always be located at the part's current alignment.

The 3D Grid Setup button brings up the 3D Grid Setup dialog box. From here you can modify the grid spacing.

3D Grid Setup dialog box

Modify the grid line spacing by typing a value in the X Axis, Y Axis, and Z Axis boxes or select the Auto check boxes to have PC-DMIS automatically compute reasonable spacing.

Grid line labels are placed around the outside of the window. These lines follow the current alignment defined in the Edit window. They can be inset by the value shown in the Label Inset box. This value determines the pixel buffer size that PC-DMIS places between the outer edge of the Graphics Display window and the 3D grid labels.

Click OK and PC-DMIS displays the 3D grid in the Graphic's Display window.

Example of a 3D—Grid with Label Inset of 10 in the X-Y Plane

There are three possible grids that can be drawn:

X-Y

Y-Z

Z-X

PC-DMIS draws only one grid at a time. The grid drawn depends on the axis plane rotated closest to your screen (determined by the axis indicator). For example, the following axis indicator from the Graphics Display window shows the X-Y axis plane facing the user; PC-DMIS draws the X-Y axis grid.

Axis Indicator showing the X-Y plane.

Note: The color of the 3D grid can be modified from the Screen Color dialog box. See "Changing Screen Colors"