Hi, i ve got a little problem while moving my project to the new VTP release error LNK2001: unresolved external symbol "public: virtual class vtNodeBase *...
Nico, That method now takes arguments. Since your linker is looking for it as (void), this means that some part of your project is still built against the ...
hi Ben As you may know from previos emails, I am a developer and am using the vtlib and vtdata libraries for a 3d visualization of a georefrenced data. For the...
Hi, Do you use tiled image set ? it can reduce loading speed also if you are not using some part of the vtlib, you can try to remove some parts of the vtlib...
Inayat, Since vtlib doesn't load elevation from TIFF by default, i assume you are using your own code to load the GeoTIFF and create a vtElevationGrid. It's ...
Nico, ... This made me curious, so i tried it out. With a small terrain, i found that total load time for Enviro was 4.92 seconds, but this decreased to 2.20 ...
... Earth ... are ... lat/lon ... just ... Thanks. I used country boundaries, timelines, and lat/lon shp file that comes with arcGIS. It has .dbf files also....
Hi Ben, I ve removed skydome and sunlight and also other minor changes but I have to check because i dont really remember ;) I dont needed light because all...
Hello, I have some questions about how to correctly cleanup after myself when shutting down a VTP session. Our application is leaking significant amounts of...
... Well, yes. I did say it would handle lat-lon lines, international time lines, or country boundaries. These are all examples of polyline data. ... ...
Steve, ... vtTerrainScene should never be created of destroyed more than once (there should be no need to). It is just a lightweight container. You can add...
are there any papers/information on terrain rendering for objects? I have just start to model an object that is 20Km wide,10km Heigh the object need to be...
Hi Tom, an object which is 10 km high and 20km wide is sort of hard to imagine. Do you mean a volume? Of which type? Regular, Irregular, Spherical Harmonics,...
Hi Tom, what you need is not a C-LOD terrain rendering algorithm, you need something like a general mesh simplification algorithm such as the progressive...
Hi Can anybody tell me how can find programmatically whether two objects placed over the ground( of some specific heights) are visible from each other position...
... In principal, you have to travel from point A to B on a straight line and check for each touched heixel if it occludes the line of sight. Since this can be...
Hi Stefan, Tom: Semi-regular grids could work very nicely on that kind of object. Then again, it could be represented to 1cm accuracy with a small fixed set of...
Mark Duchaineau
duchaine@...
Nov 6, 2006 6:35 pm
4689
... vtHeightFieldGrid3::LineOfSight() http://vterrain.org/Doc/vtdata/classvtHeightFieldGrid3d.html Example of use: If...
Yes, semi-regular grids could work well, indeed, since ROAM tiles work for arbitrary meshes. Do you know some use cases where this has already been implemented...
Hi Stefan, I know of a few implenetations of dual-queue diamond-tile systems on spheres (including the next-gen JGRASS system by John Preston). Those have cube...
Mark Duchaineau
duchaine@...
Nov 6, 2006 9:43 pm
4692
Hi Ben, Thanks - this was very helpful. The ownership transfer helped to clean up numerous small leaks. However, it turned the source of my very large leak was...
Hi Mark, I found your note on cube base meshes very interesting. I have been trying a similar thing, but never finished it, because recently I was involved...
I have added this entry to the VTP site: Virtual Earth 3D * Microsoft's 3D terrain visualization software. * It apparently does not have a website of its own,...
Steve, ... I see the problem - you didn't realize that LoadFromBT would do the allocation for you. I will try to make that more clear in the documentation. ...
... Roger, Simply edit your kml file in a text editor and add the following: <GroundOverlay> <name>Orthoimage</name> <Icon> <href>Relativepath/filename</href> ...
... ObCommercialPlug: Demos of this are here: http://3dnature.com/kml.html I believe I can say that we must have won an unofficial prize somewhere for abusing...
... Google Earth has a Menu command Add: Image Overlay. Hacking of KML files or third-party apps aren't necessary. However, as mentioned in last year's review...
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