Visualice slope and elevation of a surface

[WilliamMaestre]

Good evening!

I have a surface made of  1100 points where the difference in elevation from the lowest to the highest is only 1.5m. Once I definined all the items like braklines, boundary and points that are part of the surface, I tried to analise it (surface properties, Analysys, Slopes, Number=8) but the surface remains empty of colours. In the Surface Style menu, Display, I activated the Slope icon as well.

I have the same problem with the Elevation, and the Slope Arrows.

I've read the Messages about this issue in the forum and I did as they state, with no luck.

I use Autocad Civil 3D 2009, by the way.

I'm obviously doing something wrong. Could some one tell me what? I started short time ago usin 3CD, and I'm not an expert at all.

Any help would be appreciated. Thanks!

[doni49]

Did you remember to click the arrow button and set Surface style to Slope Banding?

[doni49]

I ran a quick test here and I've attached my test dwg file for your use.

I placed a rectangle at elevation of 0 and several random points at elevation 4.921259842519685' which is 1.5m -- I just didn't feel like converting my file to metric.

Then I did the colors as you described.

[WilliamMaestre]

Good morning! Thanks a lot for the help! I did as you said and it didnt work! Why? Because the layer was OFF!!!!!!!!!

I turned it ON... and there are all the beautiful colours of the slopes!!!!!!

Really sorry for the stupid question and thanks again for your answer and yor time.

Have a nice day!

[doni49]

Yes -- sometimes it's the simplest thing that will cause a problem.  I'm glad to hear you got it resolved though.