Jump to content

Civil 3D Help Needed


arlene

Recommended Posts

I am receiving error message "surfaces do not overlap" when i try to get volume between two surfaces.. i have two surfaces:

1. Made up of Survey points

2. Polyline which i put an elevation to make it 3d poly and then convert it into block before making it a surface.

 

What could have I done wrong?

 

Help me please :)

Link to comment
Share on other sites

You may need a boundary to clip surface that basicly limits the area the volume will be calculated within it must fit within both surfaces. If you have a flat plane as second surface as it sounds like to me just add 4 points with height well outside volume area to the surface. You only really need 5 points to make a surface (4 outside 1 in middle) if you want a volume to a flat plane.

Link to comment
Share on other sites

You only really need 5 points to make a surface (4 outside 1 in middle) if you want a volume to a flat plane.

 

Why 5?

4 or even 3 could do it.

 

Which reminds me, Carlson has always had a nice feature where you could calc a volume between any surface and a flat elevation, withOUT having to make a surface for the flat elevation.

Very useful.

Link to comment
Share on other sites

3 pts min is correct pretty sure old version of civ3d asked for 5, side note our 3rd party software allows for volumes by slices handy for water volume calcs or part full volumes.

Link to comment
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.

Guest
Unfortunately, your content contains terms that we do not allow. Please edit your content to remove the highlighted words below.
Reply to this topic...

×   Pasted as rich text.   Restore formatting

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

×
×
  • Create New...