Ting, Your Boston.ive terrain is in a projected coordinate system (UTM). Your .earth file is set to create a geocentric map (round-earth). These are not compatible. You need to pick one or the other. If you pick projected, you will also need to tell osgEarth what the profile is for the data. You can do this by including a <profile> tag (see: http://osgearth.org/wiki/MapElementProfile).
Or course, you could skip the VPB creation altogether and simply load the Boston TIFFs directly into osgEarth using the GDAL driver (see: http://osgearth.org/wiki/TileSourcePluginGDAL). Glenn On Sun, Aug 15, 2010 at 4:38 AM, ting zhang <bee...@sina.com> wrote: > Hi, > > Today I tried again. Here is the detail: > > I generated a ive file using the Boston tif materials and VPB. The VPB > parameter command line is: > -t boston-10m-utm19n-meters.tif -d boston-dem-downtown-5m-utm19n-meters.tif > --TERRAIN -l 4 -v 3 -o Boston.ive > Note: I used–TERRAIN in my command line for using the vpb driver of > osgEarth. > The generated terrain is shown in Fig. 1 and Fig. 2. > Then I viewed the ive file using .earth file (modified by > vpb_earth_bayarea.earth; Boston.ive and its related subtiles are located in > my D partition of hard disk ). The ive file is as follows: > <!-- > osgEarth Sample > This example pulls imagery and dems from an online VirtualPlanetBuilder > generated database. > --> > <map name="Virtual Planet Builder model" type="geocentric"> > <image name="imagery layer 0" driver="vpb"> > <url>d:\Boston.ive</url> > <primary_split_level>5</primary_split_level> > <secondary_split_level>11</secondary_split_level> > </image> > <heightfield name="dem" driver="vpb"> > <url>d:\Boston.ive</url> > </heightfield> > <!-- > <cache> > <path>cache</path> > </cache> > --> > </map> > Then I view the .earth file using osgviewer, but nothing is in the scene > (in Fig.3 ). Could anyone tell me what is the problem? Thank you. > > > > Thank you! > > Cheers, > ting > > ------------------ > Read this topic online here: > http://forum.openscenegraph.org/viewtopic.php?p=30745#30745 > > > > > Attachments: > http://forum.openscenegraph.org//files/nothing_174.jpg > http://forum.openscenegraph.org//files/boston_terrain_212.jpg > http://forum.openscenegraph.org//files/boston_255.jpg > > > _______________________________________________ > osg-users mailing list > osg-users@lists.openscenegraph.org > http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org >
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