AutoCAD Civil 3D :: Surfaces In Multiple Files

Aug 7, 2013

How practical is it to create and manage surfaces across multiple DWG files?  One of the reasons I'm asking is some of our users are insisting their work can only done in a single file, resulting in massive DWG files and naturally, Civil3D slows to a crawl.  I'll admit I'm not a full time Civil3D user or specialist - thats not my job.  I'm reasonably certain it can be done from the most basic of research (which apparently nobody else wants to do...), but am Uncertain what the potential pitfalls are.

They complain of slowness and are requesting better computers from IT (I've talked them down to more RAM).  I'm trying to forestall a potentially nasty political situation spiraling out of control: they get better computers, others will want them as well and either get them only because of connections, or won't get them and are resentful for the perceived lack of importance.  We don't need people doing 2D schematic drawings on gaming rigs.

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AutoCAD Civil 3D :: Sample Multiple Surfaces For Multiple Alignments

May 18, 2012

I need to figure out a way to sample multiple surfaces for multiple alignments.

Example 1: I am creating cross sections for a river dredge showing the pre-dredge bathymetry, design dredge elevation, and post-dredge bathymetry results. I have 100's of alignments that I need to sample 3 surfaces and display in profile view. Due to the clients requirements for display, using the cross section tools don't work for me, so I have resorted to using a seperate alignment for each cross section.

Example 2: Working in a subdivision with many utility alignments it would save quite a bit of time to be able to choose a group of alignments and sample multiple surfaces in just a few clicks. 

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AutoCAD Civil 3D :: Multiple Surfaces On One Section?

May 16, 2012

How do I create sections that show multiple surfaces?

All surfaces are existing, none are design. (existing ground, grubbed surface, bedrock surface)

How I miss LDD.

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AutoCAD Civil 3D :: How To Export Contours With Multiple Surfaces

Sep 8, 2013

where the contours of each surface are separated into different layers? Usually it just produces two layers for all of the contours, major and minor.

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AutoCAD Civil 3D :: Multiple Surfaces Lowest Elevations

Apr 30, 2012

I have many surfaces overlapping and I want to create one surface with the lowest elevation for each x,y coordinate from the existing surfaces. Does autocad civil 3D have a command for this?.

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AutoCAD Civil 3D :: How To Figure Multiple Volumes From Two Surfaces

Sep 26, 2013

using CIvil3D to figure volumes.  I have a very large aerial topo from a couple years ago to compare against a topographical survey I completed this year.  No problem creating surfaces. 

Question:  In the topo's, I need to get a volume from two different area being a fill area, the other being the borrow area.  Don't want any volume data throughout the rest of the site.

Do I just create one large surface for each topo and designate boundaries somehow?  Or do I need to create multiple surfaces for each topo?  If this is the case, will I need to make sure any breaklines, etc. don't cross from one area to the other?

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AutoCAD Civil 3D :: Combining Multiple Surfaces To Create Final Surface

Nov 28, 2012

I am creating my Final Grading surface with from 2 surfaces - a proposed road surface and a proposed grading surface.  (Note of roads within the road surface)

The issue is that when I paste the proposed road surface (that consists of several looped sections) over the proposed grading surface, the proposed grading surface within the looped road areas dissappears.

I have tried several options using boundaries for the inner looped areas on my road surface, and has altered my order of opterations for my final surface edits, and many other things also. 

I have attached an image for reference.

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AutoCAD Civil 3D :: Data Bands - Multiple Surfaces Sampling From One Design Profile?

Jun 26, 2013

I have 2 different surfaces (Existing Ground & Proposed Pipe Invert) that I want to have the elevations shown for in a profile data band, but I want them to show at the design profile's PVIs (Proposed Road).  Is it possible to set up a data band style that samples at one profile's geometry points but displays the elevations from these points from a different profile?  My workaround is to set the data bands to all sample from the design profile first and label over the design profile's data band but I'm hoping for a cleaner solution.  Attached is an image showing the profile view in question.

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AutoCAD Civil 3D :: Output Surfaces As XML Files

Oct 26, 2012

I need to export a DTM for use in another package which I previously did by Extracting the Triangles, Selecting the 3D faces & Wblocking to DXF for import to the other package.

The developers of the other package have introduced an XML import which I have been trying out but when the surface is imported into the other package via XML most (but not all) of the triangles honour the original 3D faces.

The question is therefore: Does the XML output contain sufficient information to allow the other package to "join the dots" in the correct way so as to mirror the original 3D faces and thus create an exact copy of the DTM??

IDSP Premium 2014 (mainly Civil 3D 2014)
Win 7 Pro x64, 256Gb SSD, 300Gb 15,000 rpm HDD
16Gb Ram Intel Xeon CPU E5-1607 0 @ 3.00GHz (4 CPUs), ~3.0GHz
NVIDIA Quadro 4000, Dual 27" Monitor, Dell T3600

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AutoCAD Civil 3D :: Merging Duplicated Files But With Unique Grading And Surfaces

Jun 8, 2012

I started with a points file which I created an existing surface called EG. I then used a number of feature line to create the gradings, grading surfaces and associated volume surfaces (compared to EG) also had other drawing elements and aerial photo in place. I had a lot of grading scenarios to do and it was all in one file. It was getting out of hand, so I duplicated the file, deleted the gradings (retained the EG surface) then added another set of new gradings and volume surfaces against EG. I did this in 4 files. So now I have multiple files that contain duplicates of the same EG surface and other features, but have unique gradings and surfaces referenced to those individual EGs.

Files all have similar structure:

+Various features (duplicated in all files)

  - base aerial photo

  - other drawing elements


  - EG surface (duplicated in all files)

  - Grading A-1 surface

  - Grading A-2 surface

  - Grading A-1 volume surface

  - Grading A-2 volume surface

+Site A

  - Grading A-1

  - Grading A-2

I recognise now that I should have data shared the EG surface from 1 file (and xrefed the other common drawing elements??) but given my situation now, what is the recommend way of putting it all together? 
Civil3D 2013 (infrastructure suite) ANZ & UKIE
Self-built i7-3930K, 16Gb RAM, P9X79 m/board
SSD(system), HDD(data), GTX680, Win7Pro64

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AutoCAD Inventor :: Embossing Onto Multiple Surfaces

Dec 18, 2012

Is there any way of embossing onto

1. Multiple faces
2. surfaces that are not flat, cylindrical or conical

I have tried using the “stitch surface” command but I can’t seem to get it to select .

The surface was created using the loft command, but I don’t know how to select it as a composite surface . When I am doing the emboss. Maybe it has to be done using another method besides emboss?

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AutoCAD Inventor :: Error - Importing Multiple Surfaces Results In 1 Composite Surface

Feb 16, 2012

When importing objects into Inventor, all surface objects are being joined together into 1 composite surface. What I need is multiple surfaces, or seperate surface/composite objects.

Capture 1

Shows 3 solids imported from Rhino

Each solid is a sepreate solid

Capture 2

Shows 2 solids and 1 surface composite imported from Rhino

Capture 3

Shows 1 solid and 1 surface composite imported from Rhino

1. Why is Inventor creating 1 composite from multiple non intersecting surfaces?

2. How can I avoid this from happening?

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AutoCAD Civil 3D :: Can't Open Multiple Drawing Files Through Sheet Set Manager

Jun 25, 2012

I have been using the sheet set manager with very few problems for years until - you guessed it - I was upgraded to Windows 7 OS v6.1 and Civil3D 2012 IDS.

Up until then, I was able to open layouts in different drawing files through the sheet set manager while in an open file.  Now, I get an error message (see attached) and have to close the file I'm in to open the other. 

I can open files through the regular file open command and have more than one open at the same time, but it takes away the convenience of using the sheet set manager to avoid having to browse to the desired sheet layouts when copyclipping sheet layout drawing elements from one file to another.

I have studied every sheet set system variable to see if that was the problem, but could not find an answer.  I have the same problem in Civil3D 2010. It happens to new and existing sheet sets in both versions and sheet sets made before the Windows update.

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AutoCAD Civil 3D :: Sharing Custom Projection Files With Multiple Users

Jul 29, 2013

How to share custom projection files with multiple users?  I created a custom projection for C3D on my computer, now I need to give it to several other people.  Can't seem to find where this file is stored.

C3D - 2014,

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AutoCAD Civil 3D :: Importing Multiple Building Sites As ADSK Files

Jan 2, 2014

I am working on a project where I need to bring in multiple building site files from Revit as .adsk files to one Civil 3D model. The first building always imports just fine.  For any building after the first, I get the following message:

"The selected file contains a definition of a building site that is already in use."

"What would you like to do?"

"Update the definition of the existing building site (cancel the import and use the selected file to update the definition of the existing building site.)" - THIS OPTION REPLACES THE FIRST BUILDING WITH THE NEW BUILDING I HAVE SELECTED

"Browse to another file (display the file browse dialog to select a different file.)"

My team and I have tried every we can think of including the following (see attached):

Renaming the files Moving the files to different folders Importing each building site into a new file and copy and pasting into the model (this works until someone tries to import a building site, which will inevitably happen and ruin this work around)Double-checking all related settings.

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AutoCAD Civil 3D :: Creating Excel Table For Populating Point Loc And Label Multiple Files

Jan 18, 2013

I have some data in the form of

point#    |    X    |    Y   |    Desc_1   |   Desc_2  |   Desc_3  |....... ect

I would like to make an excel table that i can create multiple points from and make that table dynamic, ie if i edit the table the points will change.I would be labeling the points according to the different desc_# in multiple drawings

Is there any way to do this? I have messed with creating a user defined property classification and creating a new point file format, but i want that point file I imported to be dynamic, and if I change values the values will change in all my drawings.

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AutoCAD Civil 3D :: Volume From Surfaces

Sep 6, 2012

i'm jumping into 3d late in life...playing with volumes. i've created surfaces from aerial surveys and have saved the surfaces as separate files. i would now like to run volumes of the two as they represent the same quarry site from different years. it appears (?) i need to have both surfaces listed in prospector to run volumes. each separate file has its own surface listed. do i get (import?) the second surface drawing into one of the files so i have both listed and can run volumes? i see where i can create a surface from importing a .tin file...but i don't see how to export the surface as a .tin file.

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AutoCAD Civil 3D :: Surfaces Are Not Updating

Feb 5, 2013

I am having a problem with my data shortcuts for my surfaces not updating. I have 2 surfaces (one ex and one prop) both are on auto-rebuild.  Both of them are in separate files and data short cutted into my profiles files (I have one for water, one sewer and a third for storm drains). Any time I make a change whether I add or subtract data the file the data does not update in the profiles. As a work around I have been creating a new data short cut and adding it to my profiles files. What am I doing wrong that would make them not update?

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AutoCAD Civil 3D :: How To Connect The Surfaces

Nov 2, 2013

When you paste a surface into another how does it connect the surfaces?  Does it create a vertical wall where at the edge of the paste surface?  Can you tell it to grade a certain slope to the surface you are pasting into?

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AutoCAD Civil 3D :: Creating Two Surfaces Do Not Interact

Jun 14, 2013

I'm trying to create a surface under my 'existing ground' surface. There is shallow rock where one of our projects is located and using geotechnical data I want to create a 'rock surface' at the known rock elevations. I just want this surface for visual reasons and do not want it to interact with the existing ground or pipe network.

I have 4 places along the roadway where I know the rock elevations. I created new points around each known point with the same elevation so there would be more than just four points on the surface and so I could make it the width of the road allowance. But when I look back to my profile of the road, it shows the existing profile drop to the rock surface at each place that I created points for the rock elevation. Not sure how to make it so the existing ground surface doesn't pick up the new points I added for the rock elevations.

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AutoCAD Civil 3D :: Comparing Surfaces As A Visual

Oct 9, 2012

We will be doing some grading in a park with trees.  Probably maximum depth or fill of 12 inches.  The question has come up to be able to show cut and fill quantities as a visual shade of colors.  I have a way to display cut and fill ticks and it will give me the value, but that's not what they want.  I change the cut ticks to red and the fill ticks to green.  What is the best way to represent this like when you turn on slope percentages and assign different colors.  but I want like 0-2" fill to be red, 2" - 4" to be green, etc.

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AutoCAD Civil 3D :: Correcting Surfaces / Contours

Nov 6, 2012

Im working in Civil 09. I need to adjust the surface I created in order for the contours to be correct. Right now I'm interpolating point elevations to adjust the contours. I find myself adding lines and adding and deleting points. It's tedious. I tried changing the grid spacing to smaller one. It didn't seem to work.

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AutoCAD Civil 3D :: Can Get CV Coordinates For Nurbs Surfaces

Nov 6, 2013

I want to ask, Can I get CV Coordinates for Nurbs Surfaces ? How can I get ?

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AutoCAD Civil 3D :: Corridor Surfaces And Superelevation

Feb 26, 2013

I have an alignement to which I have applied superelevation.

The superevation has been applied and the alignment has been annotation and it shows the change from camber to superelevation on  the curves.

However when I create a surface of my corridor it does not show the superelevation, the surface is showing a cambered alignment throughout.

I have created a new alignment, a new corridor and surface and still the same.

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AutoCAD Civil 3D :: LiDAR Generated Surfaces

Jan 14, 2011

I have recently upgraded to Civil 3D 2011 when we started receiving LiDAR data.  I have been playing around with the data a bit and have a few questions on how the data is dealt with.  It appears that when a point cloud is added to a surface, it is using the point cloud display somehow to generate the TIN.  I believe that the point cloud display is showing a percentage of points based on the maximum number of 1.5 million points.  On these particular datasets (citywide LiDAR coverage, about 2,600' x 2,600' panels), we may have 4-7 million points in each LAS file.  Is Civil 3D ignoring all points beyond 1.5 million in surface building operations?  Also, when adjusting the slider, is there any way to know which points will be displayed...or maybe the points are reduced randomly??

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AutoCAD Civil 3D :: Volumes / Grading And Surfaces

May 30, 2012

I have an existing topo surface created as well as grading for a proposed elevated pad of earth done in civil 3d 2013. I simply want to calculate the cut and fill quantities. I created the grading with automatic surface creation checked on. When I use volume tools to see what the quantities are, it says 0.0 for both cut and fill.

I created another surface (TIN) and pasted the existing topo surface and the proposed grading surface into it and I couldn't get any quantities.

I created another surface (TIN volume) and set the base surface as the existing surface and the comparison surface as the surface created from the grading but again could get no quantities.

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AutoCAD Civil 3D :: Connecting Separate Surfaces

Mar 3, 2013

I created a grading and a surface for a pond that is abotu 30' away from a roaway that has a seperate surface.  What would be the best way to connect the two surfaces?  I need a uniform slope from the edge of pavement to the top of berm of the pond.

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AutoCAD Civil 3D :: Combining 2 Cut Area Surfaces

Mar 19, 2013

I have an oddly shapped "cut" area with various elevations that I want to create as a surface so that I can compare the volume with existing survey data. I've been able to get the basic "cut" template in 2 seperate surfaces, but now I want to combine them into 1 surface. When I paste one surface into another, the surfaces go haywire. I have attached a plan and cross section view of what the 2 surfaces (cuts) look like in relation to each other. how I could combine them into one surface and "trim" off the inside grading that overlaps..?

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AutoCAD Civil 3D :: When Publish The Surfaces Will Not Plot

Oct 5, 2010

I have a set of sheets that have an surface (contours) on them.

When I plot them individually the surface plots fine.  When I publish them using the same page setup, the surface will not plot.  The contour labels do plot, just not the actual surface contours.

The surface is data shortcuted from another file.

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AutoCAD Civil 3D :: Junction Corridors And Surfaces

Oct 17, 2012

I've changed my workflow slightly and have created 4 junctions via the wizard but kept them all in the same Corridor (previously I kept each one in its own corridor).

I now need to create the formation surfaces for the corridor (in the way I always have done it) but only one of the junctions has a surface. I then added a show boundary and the "missing" surfaces appeared but with many connecting triangles and superfluous triangles in the curved areas.

How to get a nicely shrink wrapped surface or is it a matter of brute force removal of triangles etc? 

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AutoCAD Civil 3D :: Grading Groups And Surfaces?

Jul 8, 2013

I have created several pond embankments using the grading tools and have created surfaces using the grading groups. The problem I am having is when I turn on the triangles for one surface, I get the triangles for all the embankments and EG. The software keeps adding to the EG and doesn't cut out each embankment. I know I'm missing a step but I'm unable to find it.

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