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). Thank you, ~Patrick
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