HFSS15: Modifying Coordinate Systems

Keep in mind that when you edit a CS, the following will also be affected:

• All objects drawn on 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. 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:

1. Click Modeler>Coordinate System>Edit.

The Select Working CS window appears.

2. Click the CS you want to modify.

3. Click Select.

This selects that coordinate system and enables the editable fields in the status bar 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.

4. You can select Absolute or Relative as the Coordinate system If you selected a relative CS, follow the directions for creating a relative CS.

If you selected a face CS, follow the directions for creating a face CS.

If you selected an Object CS, follow the directions for creating an object CS.

5. You select the coordinate system from the drop down menus as Cartesian, Cylindrical, or Spherical.

6. Select the units from the drop down menu.

The value you give here is translated to Cartesian coordinates in the Properties for the Coordinate system.

Object CS can be edited in the same way they are created. For example, if CS is created in offset mode, it will be edited in offset mode only.

• You can edit the reference CS of object CS through the property. This will impact object CS created in offset and rotated mode. It will not impact object CS created in both modes as it fully depends on object.

• Origin will be editable when object CS is created in rotated mode. Otherwise it will be read only text.

• X Axis and Y Axis will be editable via the Properties dialog when object CS is created in offset mode. Otherwise it will be read only text.

• Either of X Axis or Y axis can be reversed through the Properties dialog. When X axis is reversed, Y axis does not change and vice a versa.

• Some of the examples of origin properties as a text are - Vertex_10, Face_7 center, Edge_9 midpoint, Edge_8 quadrant, Edge_17 arc center.

• Some of the examples of axis properties as a text are - Face_7 normal, Edge_9 direction, Vertex_10, Face_6 axis