Hi Brad -- I've developed some OSG tools for PolyTrans that allow the user to
load any format supported by PolyTrans and export to .osg/.ive. Due to PolyTrans
licensing restrictions, this is not open source. If you're interested, email me
offline and we'll see about getting you some binaries.
-Paul
On 12/29/2010 9:32 AM, Brad Lotocki wrote:
Hello,
I'm new to the board and have a question about importing CAD models, hopefully
someone out there can help. My basic question is this - is there a way to
convert or directly import native CAD formats (.stp, .stl, .asm, etc) into OSG,
while preserving the model's coordinate frames? I apologize if I'm not using
the same terminology. I had searched through your archives without luck.
Here is a little background of where I'm coming from - our team uses OSG to
graphically simulate our lab's robot. As the robot is moved by the operator,
OSG moves the graphical robot to mimic the physical one. Periodically we need
to add another model to the OSG simulator, usually new robotic end effectors.
To date, each time we've needed to add a model, we use Solidworks or Pro/E to
export the model to VRML format (.wrl). That VRML file is imported into
Blender (another open source application you're probably familiar with).
Within Blender, we often take time to reduce complexity, or change colors, etc.
Then we use Blender to export to OSG format. We then use the matrix
transformation information in that OSG file to manipulate the graphics in our
simulator.
This process works, but the Blender step is very time consuming and seems like
it could be bypassed completely.
I've tried using osgconv.exe with .obj and .stl files. Both types result in an
OSG file which can be viewed, but it lacks the matrix transformation
information we need.
Please let me know if you can offer any advice.
Warning - I am not very OSG savvy. I can use the osgviewer.exe and
osgconv.exe, and know basic command line interface operations. Our team has an
experienced programmer that owns the OSG side of things. I am the CAD guy and
hopefully can communicate any technical OSG information to our programmer.
Thanks very much,
Brad Lotocki
------------------
Read this topic online here:
http://forum.openscenegraph.org/viewtopic.php?p=35217#35217
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--
-Paul Martz Skew Matrix Software
http://www.skew-matrix.com/
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