Grading tools

[cadplayer]

Hi!

 

I have not found a link that can help me to calculate volumes from gradings

I have done a featureline from my 3dPolyline and than I use a new grading and get cut and fill slopes. Question is now how can I get volume from grading group

If I push button "grading volume" I get message

"Surface must be set in Grading Group Properties to compute volumes"

But I didn´t understand what it means?

[CyberAngel]

I haven't done much work with grading, but I think you have to associate a grading group with a new surface to do anything with it. You should also have the option to create a surface from a grading when you create the grading object, or to add that grading to an existing surface. Of course the grading surface should be different from the existing surface.

 

This is one of those concepts that makes Civil 3D so hard to learn. Common sense would suggest that a grading would have to belong to a surface, but no, not necessarily.

[cadplayer]

Thanks I think so too.

 

My solution to can calculate cut volume for example is: make a featureline from terass ground and than use grading target survey ground with 1:2. At the same time you can get a gradingsurface which you can add to terass ground surface.

Finally you calculate volume between terass- and survey- surface.

 

I wonder me why have grading tools button for volume calculation too ?

[clepine]

When you created your grading surface did you select your base surface?

Also you should be able to get volumes using the Volume button on the Analyze ribbon, select create new volume entry, set your base surface and the comparision surface.