Carlson Software Forum

I'm having problems with the volumes by triangulation tool. Everything was working fine, I had done 10 - 15 areas and got the correct volumes but now I'm been getting zero volumes in the reports.

I haven't changed any settings or the way I've been drawing/triangulating the areas.

Any suggestions?

Try to go back into a job where you were able to successfully calculate the volumes and rerun the command.

My guess is that there is a problem with one or both of the .tin files you are currently working with. You may be getting 0 volumes because the surfaces are the same, even though they have different file names?

We haven't had this software long and this is the only job I've done volume calculations on.

I have two different surfaces with two different tins. Everything is setup correctly... I'm just not getting the correct answer. I'm really not getting any answer... just 0.00's.

The previous surface models are still working properly. The give the same answer now as they did last week.

Interesting. Did you create the surface tin files with Carlson? If not, it's possible Carlson can't read the surface correctly.

Have you tried to run One Triangulation Surface Volumes and setting your datum arbitrarily low (or high)? If you set the reference elevation to 0.0, run the command and you still get no calculations then there is something wrong with your software installation. If it reports a volume, then you know the surface is good.

If you made the surfaces in Carlson (and you know they are good, ie you can build contours from them), then make sure you are using 2 unique surfaces. I just ran the command selecting the same surface for both Existing and Final and this is the report that was returned.

Volumes by Triangulation (Prisms) Tue May 11 11:53:28 2010
Existing Surface: S:\__Share\__2010 PROJECTS\054-835-B. 74 Pine Rd - Septic Design\DTM\054-835B Surface 5-10-2010.tin
Final Surface: S:\__Share\__2010 PROJECTS\054-835-B. 74 Pine Rd - Septic Design\DTM\054-835B Surface 5-10-2010.tin

Cut volume: 0.0 C.F., 0.00 C.Y.
Fill volume: 0.0 C.F., 0.00 C.Y.

Area in Cut : 0.0 S.F., 0.00 Acres
Area in Fill: 0.0 S.F., 0.00 Acres
Area exactly in daylight: 7,753.9 S.F., 0.18 Acres
Total inclusion area: 7,753.9 S.F., 0.18 Acres

Export Volume: 0.0 C.Y.
Elevation Change To Reach Balance: 0.000
Volume Change Per .1 ft: 28.7 C.Y.

Cut (C.Y.) / Area (acres): 0.00
Fill (C.Y.) / Area (acres): 0.00

If your report is giving you a Total Inclusion Area but no area calculations then you are using the same surfaces.

Alternatively, you can draw the two tin files on different layers in Carlson and use the "Volume by Layers" command under the surface menu.

I made the files using Carlson 2010. I manually entered the points, I connected them with a 3 polyline and I made that 3d polyline my boundary.

I've tried the one triangulation deal with both surfaces, using a high and low elevation, and still get all zeros.

I have not tried the volumes by layers... but I will give it a shot.

check your ucs, make sure you're still in world. or the original ucs you started in.