Incremental Volume Report

[Anonymous]

Is it possible to do an Incremental Volume Report between contour elevations in C3d ' 07?

[petrocat]

Mikey,

It sounds like you are doing a pond.
If I understand what you are asking for, this has been asked a couple of times before. Look at the post on "Elevation Banding Volumes?" that was just posted yesterday.
In short, C3D won't do it.
One work around is to copy your pond surface, explode it twice, get the 2d areas from the contours, and do some average-end-area volume calcs by hand or by spreadsheet or by 3rd party software.
Maybe someone will come up with a snazzy little routine to do it, or maybe AUTOCAD will add it to their next release. Sure would be nice.

Mark

[Anonymous]

Yea, you guessed my dilemma correctly. I pretty much did it the way you were speaking of, but I was just curious if it was a command I was overlooking someplace. Thank!

[Anonymous]

Hi Mark,

For shapes like ponds which typically increase in area with increase in
depth the average end area algorithm gives inaccurate answers.

You should use Simpsons Rule for these computations.

The average end area algorithm is more appropriate for things like road
volumes where the cross section areas vary randomly along the job.

--

Laurie Comerford
CADApps
www.cadapps.com.au
www.civil3Dtools.com
wrote in message news:5485291@discussion.autodesk.com...
Mikey,

It sounds like you are doing a pond.
If I understand what you are asking for, this has been asked a couple of
times before. Look at the post on "Elevation Banding Volumes?" that was
just posted yesterday.
In short, C3D won't do it.
One work around is to copy your pond surface, explode it twice, get the 2d
areas from the contours, and do some average-end-area volume calcs by hand
or by spreadsheet or by 3rd party software.
Maybe someone will come up with a snazzy little routine to do it, or maybe
AUTOCAD will add it to their next release. Sure would be nice.

Mark

[sboon]

My problem is with stockpile volumes - the inverse of yours, but this may be the solution to what you are trying to get.

[petrocat]

Laurie,

That's true. I was just throwing out a suggestion to get him started.

Mark

[Anonymous]

C'mon, Laurie, we're not counting dirt by the spoonful. If accuracy is an
issue the prismoidal version of the average end area method should be
sufficient especially considering that our usual surface is simply an
approximation.

I'm with Mikey. I've posted several times on this topic but the solutions
either did not work or involved using some other program. I'm just having a
hard time accepting "Explode-&-Hand-Calculate".

--
Mike Norton
Total CAD Systems - Houston, Texas
"Laurie Comerford" wrote in message
news:5485349@discussion.autodesk.com...
Hi Mark,

For shapes like ponds which typically increase in area with increase in
depth the average end area algorithm gives inaccurate answers.

You should use Simpsons Rule for these computations.

The average end area algorithm is more appropriate for things like road
volumes where the cross section areas vary randomly along the job.

--

Laurie Comerford
CADApps
www.cadapps.com.au
www.civil3Dtools.com
wrote in message news:5485291@discussion.autodesk.com...
Mikey,

It sounds like you are doing a pond.
If I understand what you are asking for, this has been asked a couple of
times before. Look at the post on "Elevation Banding Volumes?" that was
just posted yesterday.
In short, C3D won't do it.
One work around is to copy your pond surface, explode it twice, get the 2d
areas from the contours, and do some average-end-area volume calcs by hand
or by spreadsheet or by 3rd party software.
Maybe someone will come up with a snazzy little routine to do it, or maybe
AUTOCAD will add it to their next release. Sure would be nice.

Mark