[osg-users] Placing OSG graphics in an FLTK Fl_Gl_Window
My apologies in advance if what I am asking for is either preposterous or un-achievable. I was wanting to use the FLTK forms package as a frontend for for a visualization of a finite element (FEA) model using osg as the rendering agent. As a start, I was able to get the provided example code: osgviewerFLTK compiled, linked and running and it did well. (Did this on Windows 10 using Visual Studio 2019) But, as per design, it creates its own window. What I was hoping to do was create a simple FLTK form and place an Fl_Gl_Window on it and then have osg place the rendering in that window (or some similar FLTK widget). That way, using buttons, menus, etc. I could control the rendering to my liking. I have already done something similar using a VB.Net form with a C++ DLL backend, but was wanting to transition to an all C++ solution and how to do it with FLTK presently escapes me. I was hoping that one of the members here had already plowed that ground and could post a bare-bones example of how they did it. Your help would be most appreciated. Thanks, Bob Kiser -- You received this message because you are subscribed to the Google Groups "OpenSceneGraph Users" group. To unsubscribe from this group and stop receiving emails from it, send an email to osg-users+unsubscr...@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/osg-users/c6ddad69-a74a-42ab-9965-176122065195n%40googlegroups.com. ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] extending the osgWidget example osgWidgetMenu
Thank you for this reply, Mr. Osfield. I didn't want to be a pest, but was hoping that someone would see this and have a quick fix in their back pocket. Perhaps I can message this gentleman and maybe Jeremy Moles as well to see if they might have a suggested path for me to try. Thanks, Bob Kiser -- Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=67136#67136 ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] extending the osgWidget example osgWidgetMenu
So, was this question too ridiculously easy as to be worth answering or was it too hard for anyone to answer? Either way, I'm still stuck. Thanks in advance, Bob Kiser -- Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=67134#67134 ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
[osg-users] extending the osgWidget example osgWidgetMenu
Hello All I was looking over the example program osgWidgetMenu in the OSG 3.4.0 distribution, wanting to extend it a bit for my needs. Specifically, I wanted to have the sub-menu fly up (pop up) when my mouse was over the menu button and then have the sub-menu disappear when I clicked on one of the sub-menu options. The first part was easy enough. The second part has got me stuck: how to tell the parent of the sub-menu (the menu button) to make the sub-menu disappear (presumably by calling it's _window->hide() operation). I don't see how to get back to the derived class to get access to the _window object. Perhaps this is obvious to a C++ guru. (I'm very much a C++ newbie, though). Anybody have any thoughts as to how to go about this? Thanks in advance, Bob Kiser -- Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=67084#67084 ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] Odd Font/Text issue
Hello Mr. Osfield Yes, it could be a driver issue. I really don't know one way or the other. As of the moment, I don't have a way of checking this out on another driver. I will endeavor to find a way to do that, however. I didn't mean to impugn the reputation of the osgText code. Just observing that I have a somewhat different environment and hardware and am seeing a similar phenomenon. I don't know if that tells us anything of significance or not. Best regards, Bob Kiser -- Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=67007#67007 ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] Odd Font/Text issue
Hello All I thought I'd add my recent experience to this thread in case it helps get to the bottom of this strange behavior. Like the earlier posters, I was noticing that some of my text (changed from a callback) was getting dropped (displayed as blanks). As was suggested earlier, a crude but workable hack was on the first call to setText send a string with all the displayable ASCII characters and then send a blank string. Then, all the subsequent updates displayed fine. That hack was good enough for my purposes, so I didn't investigate any further. I did have the line text->setDataVariance(osg::Object::DYNAMIC); set in case that matters. For what it's worth: Windows 8.1 Pro 64 bit Microsoft Visual Studio Enterprise 2015 Update 1 using dual monitors and 2 graphics cards: Intel HD 4000 and AMD Radeon HD 7570 I don't know if this info helps or is just noise. My hope is that if there is indeed an obscure bug with osgText that this is another clue in getting to the bottom of it. Best Regards, Bob Kiser -- Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=67005#67005 ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
[osg-users] determining new size of rendering window after a user resizing
Hello All First, I apologize profusely if I am asking a newbie question with an obvious answer. I am a technical software developer w/ 30 years experience in other languages (FORTRAN, Assembler, VB.Net) but have only very recently been exposed to C++ and OSG. My question is: how (on a Windows system) can I determine the size of the rendering window after the user has resized it? (I was wanting this info so I could set the rendering window back to the desired size the next time the user ran the program.) I thought that there would be a quick and simple answer, but for some reason I can't seem to some up with it. I've done numerous google searches along the lines of: "OpenSceneGraph get window size", "OpenSceneGraph get window width", etc. to no avail. I did find a hit talking about a class called Producer which I am understanding is deprecated from an older version of OSG. I am presently using OSG 3.4.0 and was wanting a solution for that version. Thanks in advance for your help as I delve deeper into the exciting world of OSG. -- Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=66691#66691 ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
