# Direction Modify

- Type
- Scope
- Projection
- Position
- View

Change here the position and orientation for a single direction or a list of directions.

To modify a direction, click over its graphic image, or write its identification (name and number) on the Direction entry. To modify a list of directions, press the button List (after creating the list of directions with Direction->Select). Parameters for empty entries or Local choices remain unchanged.

To change a direction name write the new name in the Direction entry, followed by the direction number (GAMGI needs the number to identify the direction). To change the name for a list of directions, press List first and then write the new common name in the Name entry.

### Translation

The position of a direction object can be changed using the X, Y, Z entries. The change can be Absolute or Relative (to the current position).

To go back to the initial position, set X, Y, Z, to 0, 0, 0, in Absolute mode.

### Rotation

The orientation of a direction object, defined by the Euler angles theta, phi, psi, can be changed using the E1, E2, E3 entries. The change can be Absolute or Relative (to the current orientation). Euler angles are not addictive, so the direction is rotated back with the old angles and forward with the new ones.

To go back to the initial orientation, set E1, E2, E3, to 0, 0, 0, in Absolute mode.

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