TransDEM Forum

I got it now, Garry. Just before I created my last two routes, I zoomed down far enough to see the baseboards for the route and made sure that the bounding box covered the SW corner of the route and that I included the baseboard that held that corner - then went one baseboard further. I am ...

I have goofed up royally. :oops:

Maybe it was because I was the one who wrote the tutorial, maybe not, but I found my error. In the midst of creating and recreating my route, I kept forgetting to add the ROUTE itself to the GE images (little blue line tracing the tracks). Once I had that in place ...

Well, that didn't go well. I recreated all my 21 GE images, making sure I had the marker in the SW corner. Then I gathered all the images into a master georef file after converting to UTM and saving. for some reason, when I checked for File Name into SRTM hgt, I was only given ONE zip file, but the ...

Aha! That makes all the sense in the world, Roland. I had completely missed the requirement of the marker in the Southwest corner. When I created my test route, I put the GE marker in the SouthEAST corner. The resulting missing tiles were always to the West of the westmost correct tile. I can see ...

Thanks for all that information, Garry. I've printed it out and will be delving into it soon.

I am totally frustrated in my attempts to use GE images as 3D baseboards. The whole process seems to be hit-or-miss whether the tiles will be created or "skipped" because TD "can't find the source for tile ...

Okay. Armed with that information, I'll try again. My test routes are, in fact, in the US, but my actual routes are in Northern Japan and, as such, I'm having trouble locating anything but the SRTM hgt ZIP files so I will have to live with that. Armed with the GE images, (if I can get them to ...

Thanks, Jerker, for the explanation. I figured that the input DEM dataset would have given me this effect of "flattening" most terrain features, but I am only using the suggested SRTM site given in the "Building your first route" section of the help manual (dds.cr.usgs.gov/srtm/). Where do I find ...

I've been using TD now for about a month. It is a great program and I have managed several nice routes using either the Map Tile Servers, or Google Earth as the source for 3D tiles. But, in the course of creating some of these routes, I have wondered about why rivers, deep gullies, embankments, and ...