3.3. document3D – Step and 3D documents

This application adds a Document3D document which can display a STEP file in the browser via WebGL. It also adds the ability to decompose a STEP file into several parts and documents and to recompose an up-to-date STEP file.

3.3.1. Dependencies

This application depends on pythonOCC. It has been tested with the version 0.5.

Changed in version 1.1.

It also depends on POV-Ray to generate thumbnails of STEP file. It has been tested with the version 3.6.1.

3.3.2. settings.py

To enable the document3D application, it must be enabled in the settings file: add 'openPLM.apps.document3D' to the list of installed applications (INSTALLED_APPS).

You must also create a directory in media:

• mkdir media/3D/
• chown www-data:www-data media/3D

and edit your apache configuration file to add the following lines:

# WSGIScriptAlias ...
<Location /media/3D>
    WSGIAccessScript /var/django/openPLM/trunk/openPLM/apache/access.wsgi
</Location>
# alias media/ ...

3.3.3. Collecting static files

Run ./manage.py collectstatic.

3.3.4. Synchronize the database

Run ./manage.py migate document3D && ./manage.py update_index document3D. Then restart celery and apache.

3.3.5. Testing

To test this application, create a new Document3D and add a STEP file (a sample file document3D/data_test/test.stp is available). After a moment, a 3D view will be available via the 3D tab. Your step file should appear if your browser supports WebGL.

If it does not work, you should check celery’s log (in /var/log/celery/) to see if an error happened. A valid conversion should output a line like this one [2012-03-12 14:46:48,089: INFO/MainProcess] Task openPLM.apps.document3D.models.handle_step_file[9f732451-1b43-497c-8b89-f726db861941] succeeded in 27.816108942s: True.

If the 3D view is ok, you can also try to decompose the STEP file:

1. Attach the document to a draft part with an empty BOM
2. Go to the “BOM-CHILD” page of the part
3. A message explaining that the part can be decomposed should appear, click on “Yes”
4. Fill the form and click on the “create” button.
5. If it’s ok, you part should have a complete BOM. Each child part has a Document3D attached and each Document3D should be viewable via its 3D tab.
6. Now, the original STEP file is bound to the BOM, so if a child STEP file is updated, or a BOM link is deleted, the STEP file is updated.

Note

You can check whether your browser supports or not WebGL here.