SAR704 wrote:
There's another issue with the route.
For some reason, it won't generate the UTM overlays along the entirety of the marked route, which is about 220kms. It only generates them along a small edge of the baseboard in TRS19. Essentially the UTM tiles are at one point, above the terrain. Then the end of them is reached, and the standard terrain becomes visible.
There is a built in limit to UTM tile generation per invocation, about 25 without a route filter and about 1000 with a route filter active. The lateral extension is defined by the filter setting in the export dialog. To anchor each UTM tile in the route, the corresponding baseboard must exist.
2D and 3D UTM tiles have slightly different policies regarding their vertical position when placed by TransDEM. It should all be in the manual.
Quote:
'Error writing file'
"(UTM overlay objects)"
No UTM tiles in mask or filter ranges.
The baseboards for the UTM tiles must exist in the route. It's not the DEM that's relevant here, it's the route previously generated.
Quote:
And just noticed the error message implying it couldn't obtain maps for the area. They definitely exist in G Earth at a desirable zoom level. So why can they not be obtained through TransDEM? It says no UTM source for tile XXX (vast majority of tiles). Is there any work around at all for this?
Acquiring map tiles from a server and exporting UTM tiles to Trainz are two different and totally independent steps. You first need to download the map tiles from a server or manually create screenshots with Google Earth. Only those present and currently loaded in TransDEM can be exported as UTM tiles. Also note that neither the Map tile services, the WMS services or Google Earth screenshots will adhere to the UTM grid. Therefore we can activate the 1000m UTM grid to show the borders of potential UTM tiles, similar to the optional 720m grid for baseboards.
I believe the video tutorial by W. Flint illustrates the process quite well. I describe it in two separate tutorials, the map tile tutorial in the main manual and the UTM tile export chapter in the "Muengsten" tutorial in the TransDEM Trainz manual.