Huge gaps and missing tiles for terrain

[D68js]

Hello everyone.

After a very long break from TS due to a busy semester, I was finally able to sit back down and begin working on my route again. I had left off at importing terrain. For some reason after processing the terrain data through ReDEM and putting it into TS, I am getting these very long gaps and entire missing tiles as can be seen here:

Screenshot_Summit and Southern RR_41.09053--81.50300_12-00-17.jpg

I have tried re-processing the .BIL files through ReDEM to no avail. I also double checked and according to the National Map site all the terrain I downloaded is 1/9 arc second. I have found a few previous posts on this same problem but none have helped me so far.

Any suggestions are greatly appreciated.

Joe

[BoostedFridge]

What is your distance between your marker files? I had the same issue because mine were too far apart. I regenerated my terrain in Redem with more markers (shorter distance between markers) and fixed it.

viewtopic.php?f=7&t=11705

[D68js]

Thanks for the suggestion. I will go back and add more markers this afternoon and let you know how it goes.

[hminky]

Combining the bil files into one Dem in Microdem solved that for me.

Harold

[D68js]

Combining the bil files into one Dem in Microdem solved that for me.

Harold

Is combining the .bil files into one a straightforward process? If so, I may try that first since adding more markers will be a fair amount of work.

Joe

[hminky]

All the bils have to be in the same folder is the only part Microdem doesn't tell you.

Just use "Open and Merge" and CTRL-Click on them.

It is easy.

Harold

[D68js]

When I try to open and merge I get an "Out of memory" error. Does this mean that I am trying to merge too much terrain. (For reference the terrain I need is for the most part the populated areas of Summit and Stark counties in OH)

[bnsfsubdivision]

When I try to open and merge I get an "Out of memory" error. Does this mean that I am trying to merge too much terrain. (For reference the terrain I need is for the most part the populated areas of Summit and Stark counties in OH)

Yes and therefore you'll need QGIS (freeware) http://www.qgis.org/en/site/ Once you've downloaded it, follow up this tutorial: viewtopic.php?f=7&t=11218&view=unread

[D68js]

When I try to open and merge I get an "Out of memory" error. Does this mean that I am trying to merge too much terrain. (For reference the terrain I need is for the most part the populated areas of Summit and Stark counties in OH)

Yes and therefore you'll need QGIS (freeware) http://www.qgis.org/en/site/ Once you've downloaded it, follow up this tutorial: viewtopic.php?f=7&t=11218&view=unread

I was about to try QGIS (I have in the past), but tried the 64-bit version of MicroDEM and that seemed to work; however when I loaded up the terrain generated, it formed HUGE spikes all around. My terrain is nothing but spikes. Did I do something wrong or is it a problem with the merged MicroDEM file? I have a hunch it is the merged MicroDEM file because when MicroDEM was done merging this is what it showed:

Problem.jpg

[bnsfsubdivision]

When I try to open and merge I get an "Out of memory" error. Does this mean that I am trying to merge too much terrain. (For reference the terrain I need is for the most part the populated areas of Summit and Stark counties in OH)

Yes and therefore you'll need QGIS (freeware) http://www.qgis.org/en/site/ Once you've downloaded it, follow up this tutorial: viewtopic.php?f=7&t=11218&view=unread

I was about to try QGIS (I have in the past), but tried the 64-bit version of MicroDEM and that seemed to work; however when I loaded up the terrain generated, it formed HUGE spikes all around. My terrain is nothing but spikes. Did I do something wrong or is it a problem with the merged MicroDEM file? I have a hunch it is the merged MicroDEM file because when MicroDEM was done merging this is what it showed:

Problem.jpg

Import it into QGIS to check it through that.

[D68js]

When I try to open and merge I get an "Out of memory" error. Does this mean that I am trying to merge too much terrain. (For reference the terrain I need is for the most part the populated areas of Summit and Stark counties in OH)

Yes and therefore you'll need QGIS (freeware) http://www.qgis.org/en/site/ Once you've downloaded it, follow up this tutorial: viewtopic.php?f=7&t=11218&view=unread

I was about to try QGIS (I have in the past), but tried the 64-bit version of MicroDEM and that seemed to work; however when I loaded up the terrain generated, it formed HUGE spikes all around. My terrain is nothing but spikes. Did I do something wrong or is it a problem with the merged MicroDEM file? I have a hunch it is the merged MicroDEM file because when MicroDEM was done merging this is what it showed:

Problem.jpg

Import it into QGIS to check it through that.

Upon first inspection it seems that merging in QGIS fixed it! I will have to take some time and inspect all the terrain, but thanks for your help everyone! If all goes well, maybe I can have some early teaser shots up towards the end of next week.