Biron, Patrick D. (LARC-E402)[ANALYTICAL MECHANICS ASSOCIATES INC] wrote:
Hello,
I haven’t heard any input from anyone interested in checking out
OSGExplore. I realized that I have not provided an executable of the
application, so I added a windows executable (and the necessary DLL’s
for the application to run) to the OSGExplore sourceforge site (rather
than leaving the user to compile the application). I recommend opening a
small file, at first (such as fountain.osg) to see how the application
operates (playing with osg::Material, specifically, with that example –
focusing on color properties, will help with understanding the application).
I also included an example document to help show how OSGExplore works.
Thank you,
Patrick
*From:* Biron, Patrick D. (LARC-E402)[ANALYTICAL MECHANICS ASSOCIATES INC]
*Sent:* Tuesday, February 02, 2010 10:35 AM
*To:* [email protected]
*Subject:* RE: OSGExplore
Also, the application is hosted on sourceforge.
*From:* [email protected]
[mailto:[email protected]] *On Behalf Of
*Biron, Patrick D. (LARC-E402)[ANALYTICAL MECHANICS ASSOCIATES INC]
*Sent:* Tuesday, February 02, 2010 10:32 AM
*To:* [email protected]
*Subject:* [osg-users] OSGExplore
Hello All,
I’m a graduate student looking for, for any who are interested, input on
an application I’ve developed - if it’s useful, things that it does
poorly, decently…and, importantly: inputs on the concepts behind the
application, etc. (warning – I am a tad rusty on C++ and I am new to QT,
among other things…so, though the application mostly works, the
development behind it might not be as efficient/proper as it should be).
The application is called OSGExplore (based/borrowed on OSGEdit…and
borrowing from basic examples from OSG and QT). Essentially, OSGExplore
uses data visualization techniques to help users find osg types (such as
osg::Material) on a visualization screen, rather than with a tree view
(though one is provided) so that it can be found and edited quickly.
I’ve developed the application using visual studio, QT 4.5.2, Boost
1.40.0 (cmake 2), osg 2.8.0, and qt property browser 2.5.1.
Environment variables:
$BOOST_DIR (location of boost – example “C:\Boost\boost-1.40.0.cmake2”)
$QTDIR (location of QT – example “C:\QT\4.5.2”)
$QTPropertyBrowser (Location of the qt property browser – example
“C:\QT\qtpropertybrowser-2.5_1-opensource”)
$OSG_ROOT (location of OSG – example “C:\Program Files\OpenSceneGraph”)
As for how the application is used, here is an example on how I hope it
would help/work.
Using the fountain.osg example, there are four osg::Materials…finding
each material might take some work using a tree view, given that there
are multiple copies of each osg::Material being used. But, using the
filter of osg::Explore, the user can choose osg::Material as the filter
class type, then choose _specularFront as the filter property. The four
osg::Material nodes will now be colored with the color used for
“specular front.” From there, we can “attract” osg::Materials to each
other on the visualization screen (by clicking the attract check box),
and change their shape to “Big”, so that they’re easier to spot on our
visualization screen. From there, we could click on each node until we
find our proper osg::Material (or just look at the colors of each
material “node”), and then (from the property view on the left hand side
of the application) change the material properties.
Warning – if you have a large number of nodes of a certain type,
choosing to turn on “class links” may slow down the application
drastically (this is also the case for parent/child links in general).
Here are some application commands:
“R”: randomly places the visualization nodes
“-“: Zooms out
“+”: Zooms in
Mouse Wheel: Zoom out/in
Clicking nodes drags them
“Esc”: Lose focus of the current node
“Space”: Pause node movement
Some other options to play with:
Node attraction and repulsion strength (the forces between each node
globally and the forces between filtered nodes to global nodes).
Just to let you know you are not being ignored. :-)
I have kept this post from you in my inbox with the intent of trying it. I
haven't had time due to other obligations. Hopefully I'll get to it in the near
future.
It sounds like an interesting tool. Keep up the good work.
--
-Paul Martz Skew Matrix Software
http://www.skew-matrix.com/
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