Modifying Coordinate Systems
Keep in mind that when you edit a CS, the following are also affected:
- All objects drawn in the CS.
- All CSs that were defined relative to that CS.
- All objects drawn on a CS that was defined relative to that CS.
There are two ways to modify a coordinate system: you can select the coordinate system in the history tree in the modeler window, and open its properties dialog box. This approach does not also allow you to change whether the coordinate system is Absolute or Relative, or to change how you express the coordinates (as Cartesian, Cylindrical, or Spherical).
If you want to also modify the whether the coordinate system is Absolute or Relative, and to change how your express the coordinate, do the following:
- Click Modeler > Coordinate System > Edit.
- Click the CS you want to modify.
- Click Select.
- You can select Absolute or Relative as the Coordinate system If you selected a relative CS, follow the directions for creating a relative CS.
- You select the coordinate system from the drop down menus as Cartesian, Cylindrical, or Spherical.
- Select the units from the drop-down menu.
The Select Coordinate System dialog box appears.
This selects that coordinate system and enables the editable fields at the lower right of the modeler window. After you click the cursor in the first field, you can type in values, and tab to the next fields.
If you selected a face CS, follow the directions for creating a face CS.
The value you give here is translated to Cartesian coordinates in the Properties for the Coordinate system.
Related Topics
Creating a Relative Coordinate System