Elevation Analysis

[ZackTheisen]

I am trying to creating a color scheme to show color shading for three different elevation ranges: 2480-2490, 2490-2494 & 2494-2495. I have successfully created those ranges with the desired colors, but it is also shading in everything outside of the ranges that I have set. I am having a hard time figuring out how to NOT color in the elevation ranges that I have not set. Any help on how to turn off that off would be great! 

Screen shot attached for reference.

TIA

[BrianHailey]

Can you share a file that is showing this behavior? The elevation banding should only fill in the areas that you have in your ranges. 

[BrianHailey]

One quick thought, make sure your surface style isn't displaying anything but the elevations.

[ZackTheisen]

I am not able to get the file size down small enough to attach a copy of it. I did try having only the elevation turned in, but it still had everything colored.

[Joe-Bouza]

you got a OneDrive?

[ZackTheisen]

Lets see of this works

2024-125 Burian Billings County Waterline-LiDAR.dwg

[Pointdump]

Hi Zack,
Thanks for posting your drawing.
Your drawing is only 34.5MB. This forum will accept up to 71MB files.
I'm not seeing the problem you layed out.
Dave

[ZackTheisen]

It was a lot bigger, but I changed a few settings and the size by about 2/3. Thanks for noticing!

[Pointdump]

Gonna need the Tiff too, to re-build the surfaces.
Dave

[ZackTheisen]

These are the 2 .tifs for the area that I am looking at currently.

[Pointdump]

Zack,
I get same as you.
That dark blue you see is Layer C-TINN-VIEW. Here I changed that layer's color to white.
Your surfaces are grid surfaces. Have you tried TIN surfaces?
Dave

[Pointdump · Accepted solution]

Zack,
If you create a TIN Surface it works as expected. I don't know why Grid Surfaces behave like that.
Dave

[Joe-Bouza]

Pretty cool, right 👍😎

[Joe-Bouza]

What are grid surface for? They seem to not abide by many typical surface routines 

[Pointdump]

Hi Joe,
"What are grid surfaces for?"
I haven't done much with Grid Surfaces, so I don't know a lot about them. There must be some things that a Grid Surface can do better than a TIN. Like creating a mesh for use in other programs.
Dave

[ZackTheisen]

Thanks for the help! I had created the surface two ways, the first time I created a .tin surface and then added the .tif fil0e. I had some issues with the contours showing so I fiddled with the drawing and reimported the surface but this time using the "Create Surface from DEM..." option. It never dawned on me that it was a Grid surface and not a tin surface (even though it is stated ion the surface name). It all works perfectly now!

[brian.strandberg]

Biggest thing grid surfaces are used for is working with DEM files.  USGS Digital Elevation Map (DEM) creates points on a grid, so you are not trying to get every wrinkle in the ground modeled, you are just working with the area wholesale. 

This is great when you are working with city or township sized data, but not very useful for average day to day surface modeling where we need to model every wrinkle in the ground.