Lisa P Hill

Hi Volker, Thank you again as always for the detailed explanation. Yes, even if USGS states the projection is the same in their citation, I should just assume it's not and the units have to be confirmed. I suspected but took it on faith. I'm traveling this weekend and when I return, I will complete. Thank you, Lisa On Fri, Jan 31, 2025, 5:19 AM Volker Wichmann reklov_w@users.sourceforge.net wrote: Hi Lisa, from you screenshot it still seems that your data is in lat/long (with units in degree). You...

Hi Jan, Thank you again for this information. The selected DEMs are in 1m resolution. I just sent Volker an email. Here is my response. " Hi Volker, I went back and reviewed basic SAGA tutorials, also understanding how the Z axis is presented in SAGA. Thank you again for the prior information. Here are three images of my steps. Pic #1: I uploaded the DEM and you can see the settings. To me, it looks pretty standard. I noted the Z-scale = 1 and Z-offset = 0. The DEMS are in meter units. Pic #2: I...

Hi Volker, I went back and reviewed basic SAGA tutorials, also understanding how the Z axis is presented in SAGA. Thank you again for the prior information. Here are three images of my steps. Pic #1: I uploaded the DEM and you can see the settings. To me, it looks pretty standard. I noted the Z-scale = 1 and Z-offset = 0. The DEMS are in meter units. Pic #2: I completed a basic visualization of the DEM and this image shows the defaults to complete a 3D imagery. Here the default Z= -45. Pic #3: This...

Good morning, thank you for your reply. Yes, I checked the projection and am reviewing basic videos again. I know I missed something and am still working on the process. I had great success earlier on with applying 3D on the selected DEMs, but now I'm coming up with issues. A bit frustrating, but I am learning. Thank you for the insight. Lisa I On Sat, Jan 18, 2025, 10:06 AM Vladimir Zbozinek vladimires@users.sourceforge.net wrote: Dear Lisa, 3D esp. anaglyphs is what got me to SAGA (thus total beginner...

Good morning and thank you. I am reviewing this information this morning. I figure it's good to review some basics, so again - thank you. Lisa On Fri, Jan 10, 2025 at 12:06 AM Volker Wichmann reklov_w@users.sourceforge.net wrote: Hi Lisa, it is somewhat outdated and the tools have evolved in the meantime, but the presentation I gave at GEOSTAT 2012 can still be used as an introduction to the topic:: Introduction to SAGA and Point Cloud Processing https://sourceforge.net/p/saga-gis/wiki/Introduction%20to%20SAGA%20and%20Point%20Cloud%20Processing/...

Hi Volker, yes I will run the 3D and add the image. Meant too, just was pretty frustrated but it makes sense about the Z factor. And I am reloading the 1m DEM also. I had issues before, but I'll at least try to correct the Z factor. I'll add pictures after running SAGA GIS again. We had really high winds yesterday, so SAGA GIS kept crashing. Thank you again, Lisa H. On Thu, Jan 9, 2025 at 12:53 AM Volker Wichmann reklov_w@users.sourceforge.net wrote: Hi Lisa, I'm not sure about the "straight lines"...

Hi Jan, Thank you and I will check out the Z scale. It makes sense as the 3D view are straight lines, no horizontal. Next time I will add an image. The 1 m and 10m image is a bit of a conundrum, with the lower elevations (valleys) definitely pixelated. I will research the SRTM with the EPSG:4326 coordinate system. I am still learning about using LIDAR, and SAGA GIS. Any links to this information would be appreciated. I do a lot of research myself, not afraid to try different tests, but sometimes...

I've come across from this on other USGS DEM files. When I complete the basic GRID Terrain Map View geoprocessing, the valleys in the image are pixelated. And if I try to complete 3D all I receive are lines. I've increased resoultion to 1000, turned on and off the contours, kept the 3D exaggeration to 1 and I still receive straight lines under 3D geoprocessing. Any suggestions? Thank you, Lisa H.