Re: [osg-users] VPB: How to use a vector database with osgdem?
On Thu, Oct 1, 2009 at 9:50 PM, Chris 'Xenon' Hanson xe...@alphapixel.com wrote: Robert Osfield wrote: I should add that I'm not the author of the shapefile support in VPB, so I can't answer in too much about it's implementation. Can you point the finger to who is? I'll do no finger pointing :-) Feel free to use svn log. Robert. ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] VPB: How to use a vector database with osgdem?
Hi Robert, Thanks for the information. By the way, how you can modify a terrain without rebuild it? I mean, suppose you have more raster data that you want to put as additional texture layers. How you can do it without rebuild the entire thing, as it would do using a source file? Regards, -- A. On Thu, Oct 1, 2009 at 11:43 AM, Robert Osfield robert.osfi...@gmail.com wrote: HI Alejandro and Chris, On Thu, Oct 1, 2009 at 6:55 AM, Chris 'Xenon' Hanson xe...@alphapixel.com wrote: I was just asking about the same thing. I'm curious too, I'm not sure if they're fully implemented. In VPB the vector (build and forest outlines imported from shape files) support is limited to databases build that use polygonal meshes rather than osgTerrain::TerrainTile. VPB now defaults to generating databases with osgTerrain::TerrainTile's as they are more compact and more flexible as they allow runtime decimation of data as well as terrain modifications, but it doesn't yet have support for handling vector data. To use the polygonal build you'll need to use --polygonal. I would like to see support added to osgTerrain::TerrainTile to allow us to provide polygonal outlines and fixed points of interest that the tesselation will honour, once this is in place we'll be able to get the shapefile support in VPB rolled out to all combinations. I should add that I'm not the author of the shapefile support in VPB, so I can't answer in too much about it's implementation. Robert. ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] VPB: How to use a vector database with osgdem?
Hi Alejando, On Fri, Oct 2, 2009 at 2:49 PM, Alejandro Aguilar Sierra algsie...@gmail.com wrote: Thanks for the information. By the way, how you can modify a terrain without rebuild it? That depends upon how and when you want to modify it. Modify it only the fly as it's loaded from disk? Load modify and resave tiles on disk? Modify the terrain dynamically per frame in the application. I mean, suppose you have more raster data that you want to put as additional texture layers. How you can do it without rebuild the entire thing, as it would do using a source file? In the case of osgTerrain based VPB database you'd need to find the TerrainTile's in each loaded subgraph and then add/remove/modify the ColorLayers as required. However, this only part of the story, as I alluded to above, how you go about this depends on what exactly you to do. Robert. ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] VPB: How to use a vector database with osgdem?
Alejandro, One option is to use osgEarth for this: http://wush.net/trac/osgearth/wiki/TileSourcePluginVPB Glenn On Fri, Oct 2, 2009 at 9:49 AM, Alejandro Aguilar Sierra algsie...@gmail.com wrote: Hi Robert, Thanks for the information. By the way, how you can modify a terrain without rebuild it? I mean, suppose you have more raster data that you want to put as additional texture layers. How you can do it without rebuild the entire thing, as it would do using a source file? Regards, -- A. On Thu, Oct 1, 2009 at 11:43 AM, Robert Osfield robert.osfi...@gmail.com wrote: HI Alejandro and Chris, On Thu, Oct 1, 2009 at 6:55 AM, Chris 'Xenon' Hanson xe...@alphapixel.com wrote: I was just asking about the same thing. I'm curious too, I'm not sure if they're fully implemented. In VPB the vector (build and forest outlines imported from shape files) support is limited to databases build that use polygonal meshes rather than osgTerrain::TerrainTile. VPB now defaults to generating databases with osgTerrain::TerrainTile's as they are more compact and more flexible as they allow runtime decimation of data as well as terrain modifications, but it doesn't yet have support for handling vector data. To use the polygonal build you'll need to use --polygonal. I would like to see support added to osgTerrain::TerrainTile to allow us to provide polygonal outlines and fixed points of interest that the tesselation will honour, once this is in place we'll be able to get the shapefile support in VPB rolled out to all combinations. I should add that I'm not the author of the shapefile support in VPB, so I can't answer in too much about it's implementation. Robert. ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] VPB: How to use a vector database with osgdem?
Hi Chris and Alejandro, I'm not sure what the status of of these options are in osgdem, but you can use osgGIS to accomplish these tasks. It works well with draping over VPB databases. Thanks, Jason On Thu, Oct 1, 2009 at 1:55 AM, Chris 'Xenon' Hanson xe...@alphapixel.comwrote: Alejandro Aguilar Sierra wrote: Hello: Can someone please explain how can be used the command line option --vector with osgdem? Is there reproducible examples of the use of --building, --forest, --type-attribute, --height options? I was just asking about the same thing. I'm curious too, I'm not sure if they're fully implemented. -- Chris 'Xenon' Hanson, omo sanza lettere Xenon AlphaPixel.com PixelSense Landsat processing now available! http://www.alphapixel.com/demos/ There is no Truth. There is only Perception. To Perceive is to Exist. - Xen ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] VPB: How to use a vector database with osgdem?
HI Alejandro and Chris, On Thu, Oct 1, 2009 at 6:55 AM, Chris 'Xenon' Hanson xe...@alphapixel.com wrote: I was just asking about the same thing. I'm curious too, I'm not sure if they're fully implemented. In VPB the vector (build and forest outlines imported from shape files) support is limited to databases build that use polygonal meshes rather than osgTerrain::TerrainTile. VPB now defaults to generating databases with osgTerrain::TerrainTile's as they are more compact and more flexible as they allow runtime decimation of data as well as terrain modifications, but it doesn't yet have support for handling vector data. To use the polygonal build you'll need to use --polygonal. I would like to see support added to osgTerrain::TerrainTile to allow us to provide polygonal outlines and fixed points of interest that the tesselation will honour, once this is in place we'll be able to get the shapefile support in VPB rolled out to all combinations. I should add that I'm not the author of the shapefile support in VPB, so I can't answer in too much about it's implementation. Robert. ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] VPB: How to use a vector database with osgdem?
Robert Osfield wrote: I should add that I'm not the author of the shapefile support in VPB, so I can't answer in too much about it's implementation. Can you point the finger to who is? Robert. -- Chris 'Xenon' Hanson, omo sanza lettere Xenon AlphaPixel.com PixelSense Landsat processing now available! http://www.alphapixel.com/demos/ There is no Truth. There is only Perception. To Perceive is to Exist. - Xen ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] VPB: How to use a vector database with osgdem?
That would be ideal, but osggis seems to be pretty unstable, always segfaults, whatever I do. In my lap I am using osg 2.9.0 and osggis revision 193. In my main workstation at my lab, osg 2.9.6. Any hint? -- A. On Thu, Oct 1, 2009 at 6:54 AM, Jason Beverage jasonbever...@gmail.com wrote: Hi Chris and Alejandro, I'm not sure what the status of of these options are in osgdem, but you can use osgGIS to accomplish these tasks. It works well with draping over VPB databases. Thanks, Jason ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
[osg-users] VPB: How to use a vector database with osgdem?
Hello: Can someone please explain how can be used the command line option --vector with osgdem? Is there reproducible examples of the use of --building, --forest, --type-attribute, --height options? Thanks in advance for any help. -- Alejandro ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] VPB: How to use a vector database with osgdem?
Alejandro Aguilar Sierra wrote: Hello: Can someone please explain how can be used the command line option --vector with osgdem? Is there reproducible examples of the use of --building, --forest, --type-attribute, --height options? I was just asking about the same thing. I'm curious too, I'm not sure if they're fully implemented. -- Chris 'Xenon' Hanson, omo sanza lettere Xenon AlphaPixel.com PixelSense Landsat processing now available! http://www.alphapixel.com/demos/ There is no Truth. There is only Perception. To Perceive is to Exist. - Xen ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
