Added mention of material='void' to user's guide.

This commit is contained in:
Paul Romano 2012-07-11 11:16:05 -04:00
parent 3bd35b850f
commit e1b1dec119

View file

@ -413,7 +413,8 @@ Each ``<cell>`` element can have the following attributes or sub-elements:
*Default*: None
:material:
The ``id`` of the material that this cell contains.
The ``id`` of the material that this cell contains. If the cell should
contain no material, this can also be set to "void".
.. note:: If a material is specified, no fill should be given.