Chris750 wrote:I still don't understand if I can add new (not replace existing) to an existing route without having to export the route and DEM all over again.
Yes you can, as already said earlier:
geophil wrote:Adding tiles to an existing route is influenced by a number of factors but basically you can replace existing tiles with new tile textures without the need to delete the existing tiles first.
I checked the evaluation procedure in the source code again. To replace an existing tile you must set the KUID management to either "overwrite, new KUID" or "overwrite, keep KUID".
TransDEM is conservative by nature. When to tell TransDEM to keep/reuse the KUID and it finds the tile in the scenery folder, it will create a new tile object with a new texture but with the original KUID. When it finds an object with that KUID and matching coordinates in the route, it will not change the reference in the route, since it is still valid. But you must import the new tile with Content Manager.
When you tell TransDEM to create a new tile with a new KUID, it will create the UTM scenery object as above, with a new KUID, replacing any previous object with the same name in the scenery subfolder, but will also remove any existing previous tile at the same location in the route itself. The obs file will therefore change. You still have to import the new tile(s) with Content Manager.
Once again and most important: Make sure to export UTM tiles to the correct incarnation of the route, the one that was actually exported by Content Manager ("Open for editing"). If a previous route with the same name exists in the common folder, Content Manager silently assigns a cryptic name to its new export which often leads to confusion: "nothing has changed".