From: Micha B. <kri...@us...> - 2008-12-06 18:50:02
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Hi all, nice to hear about porting to Qt4. I would like bring an old message from Todd Keith to your attention. Afterwards, Todd provided a patched version of the then actual library (0.2.4 beta) to me. Are you still interested in these features? Let me know if, and in this case how to provide them (some tarball, zip or whatever to one of you might be the simplest way). Micha ===8<==============Original message text=============== Read and respond to this message at: https://sourceforge.net/forum/message.php?msg_id=2884389 By: takeith FTF: Excellent Library! Thanks to the developer(s)! Unless I missed something, rotation (and translation and scaling) in qwtplot3d can currently only be done in model space, whereas it is often desirable to do such transformations in view (screen) space, and also possibly using an arcball rotation control. For example, if I move the mouse along the X axis, I might want the model to rotate around the screen y axis or translate along the screen x-axis, not rotate around the the model Y axis or translate along the model X axis. Using quaternion-based transformation control, all of this can be achieved cleanly and consistently. I have modified qwtplot3d along these lines and would be glad to have the changes incorporated into the qwtplot3d library ... Also, I added the ability to select grid nodes / suface polygons, with the mouse using OpenGL's selection mechanism and emit a signal indicating such a selection has been made. This may also be of general interest. What is the preferred way for me to merge my changes into the official qwtplot3d library, assuming of course you are interested? Thanks again! ===8<===========End of original message text=========== |