Can someone with TransDEM shift a DEM for me?

[rwk]

Is it possible to shift an existing DEM even a HOG one using TransDEM? I currently don't have TransDEM at the moment, so could someone shift a DEM about half a baseboard to the east if I send it to them? The route with the darker grid. Note how the highway doesn't line up on the left, it's like they are two of them. And you can notice in the route that the mountains don't line up, but all it needs is about a half a baseboard shift to the east and it will line up. The site I used to host the screenshot, this forum won't let you use the url in the insert image tag so I had to paste the url directly and you have to click on the link to see the image.

https://ibb.co/Vcc1Lpkw

 

[rwk]

I think what I'm going to do is fudge it, use Surveyor tools to blend the mountain edges together. I could also try merging the Green Mountain Rutland route with the Bellows Falls area deleted and keep the Bellows Falls area on the Brattleboro to Wells River DEM and see how the merge works out there.

 

[JCitron]

You can shift an existing DEM by up to a half a baseboard left or right in TransDEM. Read through the documentation on how to do it.

 

[rwk]

I think I did it in the past with a route that was off. I guess you can do it with an existing Trainz route. But how will TransDEM fill in missing DEM data for the area that is shifted at the one side? But why would two HOG routes be off? I think they are both fishlipsatwork DEMs. If he created the blank routes at different times maybe one of them the world orientation is off. I don't have access to TransDEM at the moment until I contact Roland. What I could do is do what I stated above, use the Surveyor terrain tool to blend some of the edges of the mountains together to take away that sharp cliff like edge at the merge seam. Or try to merge the other route and deleting the Bellows Falls area from the Rutland route and keeping the Bellows Falls area on the Brattleboro to Wells River north south route. I'll just have to experiment. Bellows Falls was one of the past sites of Steamtown from the early 1960's to 1984 when it moved to Scranton, PA. Before Bellows Falls it was across the river at North Walpole, NH and they ran excursions down a B&M branch that is gone now. Several miles of that branch is on the DEM route I have.

 

[JCitron]

I think I did it in the past with a route that was off. I guess you can do it with an existing Trainz route. But how will TransDEM fill in missing DEM data for the area that is shifted at the one side? But why would two HOG routes be off? I think they are both fishlipsatwork DEMs. If he created the blank routes at different times maybe one of them the world orientation is off. I don't have access to TransDEM at the moment until I contact Roland. What I could do is do what I stated above, use the Surveyor terrain tool to blend some of the edges of the mountains together to take away that sharp cliff like edge at the merge seam. Or try to merge the other route and deleting the Bellows Falls area from the Rutland route and keeping the Bellows Falls area on the Brattleboro to Wells River north south route. I'll just have to experiment. Bellows Falls was one of the past sites of Steamtown from the early 1960's to 1984 when it moved to Scranton, PA. Before Bellows Falls it was across the river at North Walpole, NH and they ran excursions down a B&M branch that is gone now. Several miles of that branch is on the DEM route I have.

The HOG routes were created with highly inaccurate MicroDEM, which don't use UTM coordinates, with route lines, rivers, and streets imported from old federal TIGER grant maps. The combination produced usable, as separate entities but not able integrate with actual data such as that created by TransDEM. The only way to do what you want to do is to build and fill in the missing data manually or use TransDEM to shift over the maps by the half meter that they are off.