AutoCAD Civil 3D :: Surface Analysis By Elevation?

Feb 8, 2006

I've tried to create a surface analysis by using a point group reading xdata to set the elevations and when I set my surface properties to display the elevation shades it will only allow me to set the range to 5 or less. All of the other analysis settings for direction, slope, and slope arrows allow me to input the nuber of ranges I want, but I need the elevation analysis.

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AutoCAD Civil 3D :: 3D View Of Elevation Analysis?

Feb 23, 2012

I've got an elevation analysis with a nice range of colours in plan which look fine but I want to display this in a 3D view for a presentation.

I selected the object and went to object viewer but I can't get the analysis in colour. I'm guessing I'm missing something obvious but can't figure out what...

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AutoCAD Civil 3D :: Average Elevation For Zoning Analysis?

Nov 8, 2013

We have to compute the average elevation along the front, sides and rear of a proposed building envelope to calculate the required set back.

Right now I am setting FL with elevation nodes at the required interval, assigning EG elevation and pasting from the panorama to excel to compute the average.

Is there a way I could create a toolbox report to do this? Maybe even from a profile report?

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Intel Xeon CPU E31240 @ 3.30 Hz
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AutoCAD Civil 3D :: Change Reference Surface For Surface Elevation Label

Apr 4, 2012

Is there any way to change the referenced surface on a Surface Elevation Label. I can see the surface in the properties but cannot change it.

C3D 2011

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AutoCAD Civil 3D :: Surface Volume Analysis

Jan 3, 2014

I have a large 200+ acre site that I have created a volume surface and analyzed it using the elevation banding with color to show different levels of cut and fill.  The owner has broken this area into 10 different irregular zones.  Is there a way to do the elevation banding of a volume surface and have it color the individual parcels.  They don't all have to be at once.  I can do each one at a time and PDF the drawing.

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AutoCAD Civil 3D :: Exporting Surface Analysis

Jul 11, 2013

We have an "original" existing surface of a ditch, a massive ditch. dredging has taken place and now we have a new existing surface of the ditch. the client wanted to see the delineation between the areas that are now 3" lower, 6" lower and 9" lower (and so on). I was able to do this easily with elevation banding. now the client would like some sort of GPS uploadable based on the color map that shows the banding. How to accomplish this without having someone set there and set points along the different colors on the surface. that is going to be incredibly time consuming. is there an automated way to export the data that I am looking for?

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AutoCAD Civil 3D :: Surface Analysis And Transparency

Nov 6, 2013

It appears color transparency for surface analysis is now broke in 2013.  It used to work in 2011 because I use to bring in Lidar data and run elevation analysis over top of aerial photos. I never found any type of resolution.  Is Autodesk aware and are they working on this?

This issue reminds me of the Point Cloud issue with Lidar data right after 2013 came out.  It worked in 2011 just fine and then 2013 they broke it.  After calls to autodesk support and thread exchanges plus several months of waiting, service pack 2 for 2013 fixed the lidar classification issue.

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AutoCAD Civil 3D :: Depth Analysis Between Two Surface

Feb 8, 2013

 I have two surface ( OG surface and Gravel LIFT ), i need to have a table that Show me Depths range between those two surface with a color range, in a table and also to be able to see it in the the top surface.

Basically, In every Spot of the surface, need to represent a Depth range between the OG and the gravel surface by a specific Color.

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AutoCAD Civil 3D :: Export / Import Surface Analysis

Sep 7, 2011

Within the UKIE Country Kit there is a lsp that exports/imports Surface elevation Analysis data (attached lisp file)

Is it possible to be modified so that a Slope analysis is exported/imported and how easy/difficult it is to do (or even make the alterations themselves!).

IDSP Premium 2014 (mainly Civil 3D 2014 UKIE SP1 & Infraworks with some limited 3ds Max Design)
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AutoCAD Civil 3D :: Surface Analysis Range Colours

Oct 31, 2012

Is there a way to automatically adjust the cut range colours (REDS) in the attached scheme such that the lighter colours denote lower cut depths in the same way that the fill range does (Greens)

I know they can be manually adjusted but when the analysis is run again the colours revert back

(No connection with Autodesk other than using the products in the real world)

IDSP Premium 2014 (mainly Civil 3D 2014 UKIE SP1 & Infraworks with some limited 3ds Max Design)
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NVIDIA Quadro 4000, Dual 27" Monitor, Dell T3600

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AutoCAD Civil 3D :: Default Surface Analysis Type?

Jun 20, 2013

I am working on a commercial development with multiple large tenants with multiple standards.  To begin to verify the preliminary grading is in compliance, I use the slope arrow surface analysis type.

Due to my multiple standards, I find myself changing these values frequently.  My question : Is there a way to make the slope arrow the default analysis type when you are in the surface properties dialog box? 

I know it is not a major issue, but it is annoying and repetitive, having to go to the list box, and select slope arrow over and over again.  One workaround I have considered to avoid this maddening situation is to make two surfaces, with each criteria assigned to the surface properties and simply paste the main surface into each.  Then control which is visible based on what I need to look at.

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AutoCAD Civil 3D :: Cut And Fill Analysis / Values Different - Corrupted Surface

Jul 10, 2012

I was undertaking a cut and fill analysis but the values were very different. Evaluating spot levels the depth was given as 1.2m but the volume surface stated it was only .6m.

After a while I noticed that the master surface had been "corrupted" duing a recovery, all definitions to the controlling corridor and other objects had been removed and a snapshot added with the description "added during recovery".

I had to remove the surface and start from scratch re-building the definitions.

Civil3D 2013 / 2014
Windows 7 Professional 64-bit
Intel(R) Core(TM) i7-3820 CPU @ 3.60GHz (8 CPUs), ~4.0GHz With 32768MB RAM, AMD FirePro V4900, Dedicated Memory: 984 MB, Shared Memory: 814 MB

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AutoCAD Civil 3D :: TIN Surface At Zero Elevation

May 22, 2013

I used the Volume dashboard to cal volume so when I view the surface in object viewer or 3D I see my TIN volumes surface at zero elevation is this right? I think the reason is because they want us to see both surface so they are not on top of one to another.

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AutoCAD Civil 3D :: Zero Elevation For Volume Surface?

Sep 27, 2013

I'm getting a zero elevation for the surface I create when I compare surfaces to get volumes. What am I missing?

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AutoCAD Civil 3D :: Surface Elevation Labels

Jun 26, 2013

I have a drawing that someone else created that has a spot elevation label for a surface. It labels the surface (PAD) then automatically subtracts a set distance for another elevation (GFE) and adds a set distance for another elevation (FFE). After doing some research, it looks like it was created with an expression?

I have two questions:

First, where to go to get a better understadning of this? I'm not familiar with expressions.

Second, where can I find the expression in drawing to make an edit to the set distances. I can remove the GFE/FFE as they are separate components in the label style, but I don't see where to modify the distance it adds or subtracts.

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AutoCAD Civil 3D :: No Elevation When Hovering Over Surface?

Apr 25, 2013

I have created a surface, when I hover over a contour on it I used to get name,style, layer, elevation.  Now I get them all except elevation, I didn't change anything (not on purpose at least) in my drawings.

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AutoCAD Civil 3D :: Surface Transparency (elevation)

Apr 17, 2012

In the previous C3D 2012 version I was able to set surface transparency just setting it on a layer with defined transparency. Example: I set my "existing ground" surface to a created  "EG" layer (example name) and set transparency layer to 50% (example, again) and it WORKS! My surface become transparent...

But now, in the C3D 2013, I can't get the same results... my surface is not getting transparent. I already tried to turn off/on hardware acceleration and adaptive degradation and show/hide transparency.

More details: I can get transparency on points, triangles, contours etc... but not on elevation, and this is my priority.

Autocad Civil 3D 2013 - Infrastructure Design Suite
Windows 7 64 i7 860 @2.80GHz 8GB Ram Quadro 2000D

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AutoCAD Civil 3D :: Surface Elevation Labels

May 3, 2012

We work with Hydro graphic surveys that have large numbers of points. We would like to be able to display girded spot heights colored to represent the elevation. (Similar to elevation banding)

I have created a surface and then created surface elevation points on a grid with spacing of 15m. I have tried looking at setting up a style  that will adjust the color depending on the elevation ie 0 to -1 = red but haven't made any progress.

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AutoCAD Civil 3D :: Manhole Rim Elevation From Surface

Aug 16, 2013

I have a question about pipeline networks.

I have a civil3d pipe network that has modeled by my co-worker before.

Now I want to put that pipe network on new surface and get rim elevation from surface automatically and also after stretch it can update rim elv based on that surface.

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AutoCAD Civil 3D :: Block Attributes Surface Elevation

Feb 18, 2013

I got this plan from a third person and, the point from the survey have the property " bloc ". In their attribute property, I can see the elevation value. but in the z of the actual bloc, it shows zero. I would like to tell C3D to use the attribute elevation for his actual Z in the drawing. How can I achieve this ?

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AutoCAD Civil 3D :: Export Surface Elevation Values

Nov 15, 2013

is it possible to export elevations from a surface at a given interval?  i can easily export all the data i used to build the surface, but now I am wondering if its possible to export/extract the surface to a CSV or TXT file with a position and elevations, say, every 5 feet?

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AutoCAD Civil 3D :: Elevation Colors In Surface Style

Jun 24, 2013

I have a surface with all sorts of heights, and want to add color to different heights. Getting the color there is not that difficult, but how do I swap them around? i.e. red is 'low ground' and blue is 'high ground'. In Holland we use it the other way around though, so blue should be low ground and red high ground. 

Where exactly do I change this? I've tried it in the surface style tab, surface properties tab, analysis tab, and some others, but no success so far.

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AutoCAD Civil 3D :: Elevation Banding On Flat Surface

Jun 19, 2012

I am using Civil 3d 2012 and an trying to apply elevation banding (one color) to a surface that is completely flat. Everything seems to be in order but nothing shows up. If I add another point file to it that has a variety of elevations then the elevation bands show up, if i remove it it disappears again. I can view the boundary and get elevation readings when I mouse over the surface.

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AutoCAD Civil 3D :: Displaying Surface Elevation And Description On DWG

Sep 27, 2013

I just used 8 points to create a surface - see the right-hand-side of  the 1st attached file.

I went to Settings => Surface => Label Style => Spot Elevation =>Elevation Only => Label Style Composer - Elevation Only => Text  Contents: <[Surface Elevation(Uft[P2[RN]AP[SN|OF]>P<[Description(CP) - see the 2nd attached file.. 

I went to Prospector => Surface => Surface1 => Definition and I did not see any place for editing Elevation - see the left-hand-side of the 1st attached file. 

How to make the Elevation and my stuff in Description show up in the DWG.

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AutoCAD Civil 3D :: Surface Elevation Labels Display?

Oct 30, 2012

I have a project I designed and grading plan is almost done. My proposed surface lables read as 1256.50. How can I get them to read just 56.50? I have a FG surface I created and am labeling using surface elevations. I am running out of room and need to free up some space. I don't want do drop my surface 1200'.

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AutoCAD Civil 3D :: Sample And Extract Elevation From A Surface

Feb 27, 2012

I just got a topographic map of some land we plan to develope, and would like to work out some preliminary earthmoving analysis.

I would like to sample that surface at very specific locations --  I could produce the required points in PNE format.

What I want is to find the way to: (1) import those points, (2) sample elevation from the surface at those locations, and (3) export the 3D poitns in PNEZ format.

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AutoCAD Civil 3D :: Surface Sport Elevation Label Rotate

Jul 5, 2013

I have been searching for a way to rotate surface spot elevation labels but have not been able to find a solution to do so.  Has this feature been added to 2013 or 14?  I do not want to use the point and label styles for my surface elevation, even though these can be rotated.  I have several miles of roadway with many horizontal curves and would like the surface labels aligned with and along the centerline.  I prefer not to update the spot elevations when the profile is revised.

C3D 2013 (latest updates), 2014 Infrastructure Design Suite

Win 7 Pro, 64-bit
16 GB RAM

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AutoCAD Civil 3D :: Different Surface Cross Slopes And Super Elevation

Mar 6, 2012

Our provincial standard requires subgrade and subbase surfaces to have a normal cross slope of -3%.  The base and asphalt surfaces have a normal cross slope for the driving lane of -2% and -5% for the shoulder.

I have been trying to figure out how to do this in C3D.  I have thought of different ways of handling this for a straight tangent, but have not tested them.  What is causing me the most grief at the moment is how to handle this in a curve with super elevation.

The transition will be different for -2%, -3% and -5% Runout distances. 

Can C3D handle this? What about using Subassembly Composer?

(I should mention that I have tried with Subassembly Composer, but I am not sure how to deal with superelevation.  -

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AutoCAD Civil 3D :: Create Surface From OG - Show Only Two Elevation Contours

Oct 1, 2013

I created a new surface, pasted my OG surface into it, set the build to exclude elevations less than and greater than but my surface still is showing every contour range. I want to only show contours at elevations of  371.5 and 370.5

Is it because it's a pasted surface?

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AutoCAD Civil 3D :: Spot Elevation For Surface To Plot Screened

Dec 18, 2013

xrefing a drawing that has annotated surface labels spot elevations into a Precise Grading Breakout Sheet, but making sure those labels plot screened.  How do I make sure I can plot it screened?  I have set the label styles By Layer and the text within that style is set By Layer and the Layer I created for the styles is set to plotstyle screened and color 8, I also made sure that the Precise Grading breakout sheet has the xref layers applicable to those surface labels set to screened plotstyle and color 8. 

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AutoCAD Civil 3D :: Elevation Bandon (2D) Surface Style Is Missing

Apr 9, 2013

I've created a triangulation volume surface to compare two surfaces. Under the analysis tab in Surface Properties I have banded my levels in metre intervals and coloured the bands accordingly. I would now like to display the 'banding' in my drawing. Under the information tab I should be able to select 'Elevation Banding (2D)' as a Surface Style, however this is missing and I can only select 'Standard'... How to get this selection back.

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