Querying bounding box of geo from python shell...

[manitou]

Hi, could someone show an example of the use of the "hou.Geometry.boundingBox()" class?  I want to query the of bbox objects from the Python Shell.

I've written scripts in maya-mel, and I'm getting my head around python in Houdini.

Any syntax examples would be appreciated

Brian Samuels

 

 

[f1480187]

You need to get an instance of hou.Geometry. Sometimes there is no easy way to track what set of calls you need to get hou.Something. You may try to construct it by calling hou.Something(). It may throw an "AttributeError: No constructor defined", which is, I think, will happen with most of hou classes. Even if you can construct hou.Geometry, you obviously need a specific geometry, not an empty one. Fortunately, any SopNode seems to have a Geometry. Here is Python Shell example:

>>> node = hou.node('/obj/geo1/platonic1')
>>> geo = node.geometry()
>>> bb = geo.boundingBox()
>>> bb
<hou.BoundingBox [-0.92793, 0.92793, -0.975684, 0.975684, -0.789344, 0.789344]>
>>> mv = bb.minvec()
>>> mv
<hou.Vector3 [-0.92793, -0.975684, -0.789344]>
>>> tuple(mv)
(-0.9279304146766663, -0.9756839275360107, -0.7893444299697876)

 

[manitou]

Thanks, this helps