Hi Frédérique,

I attached AutoLISP file which can help you to work with DVIEW command (create camera view).

Use APPLOAD to load it, then use SET_CAM command to create camera view.

The routine will:

- set view to plan

- ask for camera point location in plane

- ask for target point (view direction)

- ask for camera level above current UCS (or WCS) plane

- ask for camera focal length (lower values will give you wider view angle)

- create perspective view (camera view)

HTH