Re: [osg-users] [vpb] Some questions about VPB and cloud of points
Hi, ... Thank you! Cheers, Andrea -- Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=16766#16766 ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] [vpb] Some questions about VPB and cloud of points
Hi Jagovic, thank you for your suggestion. I've tried 3Dem ... but what i mean is to find a procedure that i can use to design and develop inside a software application (using technologies like osg, gdal, vpb, osgearth,...). So i can create and visualize automatically my row data. Using 3Dem, instead, i can't realize this automatic procedure, but i need to use different software applications. Thank you again! Andrea PS: Sorry, i have posted a blank email above! :( -- Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=16767#16767 ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] [vpb] Some questions about VPB and cloud of points
Andrea Martini wrote: Hi Jagovic, thank you for your suggestion. I've tried 3Dem ... but what i mean is to find a procedure that i can use to design and develop inside a software application (using technologies like osg, gdal, vpb, osgearth,...). So i can create and visualize automatically my row data. Using 3Dem, instead, i can't realize this automatic procedure, but i need to use different software applications. The GDAL grid utility: http://www.gdal.org/gdal_grid.html Can convert scattered points into a heighfield. It is built upon the same underlying GDAL library that VPB/OSGDEM use, so OSG already has it as a dependency. You could use the source to gdal_grid to integrate this functionality into your application. I do geospatial, GDAL, OSG and VPB consulting if you need someone to assist you. Thank you again! Andrea -- 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] Some questions about VPB and cloud of points
Hi Glenn, thank you for your answer. What do you think about the first question? Can i create a dem file starting from a cloud of points using osgdem? This cloud of points is an ascii file with n rows each one with x,y,z values. These values are referred to a coordinate system (i know this one). If i do that, i can create earth and seaground with osgdem then i will assembly them with osgearth. Is it right? Thank you! Andrea -- Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=16732#16732 ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] [vpb] Some questions about VPB and cloud of points
Andrea, I'm afraid I don't know the answer to that one. All the OSG terrain options take a regular grid of height postings as input, so you would probably need to preprocess an arbitrary could if you want to go that route. osgdem, osgEarth, etc. all use GDAL under the hood to read data formats; you might explore the GDAL utilities (http://remotesensing.org/gdal) and see it there's a pathway there. Once you have regular gridded data in a known format, you can use either osgdem/VPB or osgEarth to create your terrain (you don't need both in this case). Wish I could be of more assistance. Glenn Waldron : Pelican Mapping : http://pelicanmapping.com : +1.703.652.4791 On Wed, Aug 26, 2009 at 2:19 AM, Andrea Martinimartini.and...@gmail.com wrote: Hi Glenn, thank you for your answer. What do you think about the first question? Can i create a dem file starting from a cloud of points using osgdem? This cloud of points is an ascii file with n rows each one with x,y,z values. These values are referred to a coordinate system (i know this one). If i do that, i can create earth and seaground with osgdem then i will assembly them with osgearth. Is it right? Thank you! Andrea -- Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=16732#16732 ___ 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] Some questions about VPB and cloud of points
Hi Andrea, you can create a .dem by 3dem software, download it at http://freegeographytools.com/3dem_setup.exe When you start the software you have to selet File-load terrain model-XYZ PointCloud and after File-Save Ugs asci dem. Hope this helps, /Jagovic Andrea, I'm afraid I don't know the answer to that one. All the OSG terrain options take a regular grid of height postings as input, so you would probably need to preprocess an arbitrary could if you want to go that route. osgdem, osgEarth, etc. all use GDAL under the hood to read data formats; you might explore the GDAL utilities (http://remotesensing.org/gdal) and see it there's a pathway there. Once you have regular gridded data in a known format, you can use either osgdem/VPB or osgEarth to create your terrain (you don't need both in this case). Wish I could be of more assistance. Glenn Waldron : Pelican Mapping : http://pelicanmapping.com : +1.703.652.4791 On Wed, Aug 26, 2009 at 2:19 AM, Andrea Martinimartini.and...@gmail.com wrote: Hi Glenn, thank you for your answer. What do you think about the first question? Can i create a dem file starting from a cloud of points using osgdem? This cloud of points is an ascii file with n rows each one with x,y,z values. These values are referred to a coordinate system (i know this one). If i do that, i can create earth and seaground with osgdem then i will assembly them with osgearth. Is it right? Thank you! Andrea -- Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=16732#16732 ___ 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
[osg-users] [vpb] Some questions about VPB and cloud of points
Hi to all, i would like to create or use a software application ables to visualize a seaground (get from a cloud of points) 3d model inside earth model created by osgdem. I'm wondering if VPB, OsgEarth or osgGIS are the correct technologies to solve my problem. Some questions : 1) Can i create a DEM file from a cloud of points (I have information about its coordinates) using osgdem? 2) How i can add the DEM file obtained from previous question (or a generic 3d model) to earth model created by osgdem? 3) I have created the earth model with osgdem using blu marble image from nasa web site. The best image resolution get from this website is too far from the ground (i think that image was taken from about 900 km of quote). I would like to insert or ADD 3d model of my clouds of point (the seaground), in DEM format, and i would like to visualize this model only at a certain level (i.e. after the last level created by osgdem). Hoping my questions could be enough clear ... Thank you! Cheers, Andrea -- Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=16639#16639 ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] [vpb] Some questions about VPB and cloud of points
Andrea, You could try doing this with osgEarth. This sample .earth file shows how to incorporate a high-resolution inset into an existing osgdem (VPB) model: http://wush.net/trac/osgearth/browser/trunk/tests/vpb_with_inset.earth In addition, osgEarth layers can take min_level and max_level attributes that direct the LOD at which the data should appear. Glenn Waldron : Pelican Mapping : http://pelicanmapping.com : +1.703.652.4791 On Mon, Aug 24, 2009 at 9:52 AM, Andrea Martinimartini.and...@gmail.com wrote: Hi to all, i would like to create or use a software application ables to visualize a seaground (get from a cloud of points) 3d model inside earth model created by osgdem. I'm wondering if VPB, OsgEarth or osgGIS are the correct technologies to solve my problem. Some questions : 1) Can i create a DEM file from a cloud of points (I have information about its coordinates) using osgdem? 2) How i can add the DEM file obtained from previous question (or a generic 3d model) to earth model created by osgdem? 3) I have created the earth model with osgdem using blu marble image from nasa web site. The best image resolution get from this website is too far from the ground (i think that image was taken from about 900 km of quote). I would like to insert or ADD 3d model of my clouds of point (the seaground), in DEM format, and i would like to visualize this model only at a certain level (i.e. after the last level created by osgdem). Hoping my questions could be enough clear ... Thank you! Cheers, Andrea -- Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=16639#16639 ___ 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
