AutoCAD Civil 3D :: Surface Drawing Triangles Across Breakline

Jan 6, 2014

i am trying to add as a breakline. i have not been able to get this particular line to work as a breakline and the surface keeps drawing triangles through the line like its not even there. The figure properties show that it is a breakline. The figure prefix database brings the line style in as a breakline from the start.

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AutoCAD Civil 3D :: Reduced Maximum Length For Surface Triangles Causes Surface Holes

Oct 22, 2012

Has instances where you set your tolerance for the maximum triangle lenth to say 50m to reduce the amount of triangles along the edge that run at long distances. When I do this I end up with multiple surface holes and I'm not sure why as there are points in the area.

I thought well maybe it's because i should've reduced my max triangles first then added breaklines. Would this matter? I also thought I could add a line to the surface to fix the holes vs. deleting surface lines along the entire edge of a surface for many many miles.

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AutoCAD Civil 3D :: Editing Breakline Within Surface

Dec 3, 2013

I have a point in my surface that has a bad elevation. My question is this, I unlocked the points and edited the point containing the bad elevation and I am wondering why my surface is not automatically updating. I have a breakline in the surface that uses the "bad" point and by editing the point to the correct elevation, I was assuming that my surface would automatically update, which did not happen, so I selected the breakline and edited that also to the correct elev., and the surface still did not update until I chose "rebuild surface" even though I had "rebuild surface automatically" turned on, so I am a bit confused.

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AutoCAD Civil 3D :: Remove Breakline From Surface Using .net API?

May 3, 2012

I see BreakLinesDefinition prop, but only add methods.

I assume the RemoveAt is of no use, as you cannot get the objectID of each breakline to decide if its one that should be removed.

COM is the only way it seems.


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AutoCAD Civil 3D :: Create A Separate Surface Inside Breakline?

Jul 2, 2012

I have created a breakline from a feature line which cuts the triangles of my surface. Is there any way to create a seperate surface from the triangles inside the breakline.

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AutoCAD Civil 3D :: Surface Display Disappears When Breakline Added

Sep 24, 2013

After adding 9 or so breaklines, the display of my surface (e.g. contours) disappears when I add the next breakline.  Based on the surface elevation shown at the pointer location, the breakline seems to have been added and the surface rebuilt. 

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AutoCAD Civil 3D :: Adding Data To A Surface / Non-Destructive Breakline

Nov 7, 2012

When adding data to a surface, there is the option to add it as a "Non-destructive" breakline. [URL] .....

What is this good for? I created a surface, copied it, and created a volume surface between the two of them. As expected, the resultant volume was 0.

I then draw a 3d polyline and snapped to elevations on the surface. I then took that 3d polyline and moved it up 5'. I then added that breakline to the surface as a "Non-destructive" breakline and the resultant volume between the original surface and the one modified with the new breakline was still 0. Absolutely no change was made to the actual surface, it just added additional triangles. 

I'm trying to find a reason it's even option and I'm coming up blank. There has to be SOME reason it's there.

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AutoCAD Civil 3D :: API / Delete All Breakline Sets Included In Definition Of Surface?

Oct 29, 2013

I want delete all breakline sets of one selected surface using API.

There is "SurfaceOperationAddBreakline" but I don´t find "SurfaceOperationDeleteSetBreakline" for example.

Is there other way to delete all breakline sets of one surface?

Later, I want to create one set breakline for each layer which has been selected by user.

I know that I can use qselect, but I want do this process automatically.
Autocad Civil 3D 2014 +SP1
Quad Core Intel i7 3770-cpu 3.40Ghz.
ssd samsung 840 pro 512gb+ssd samsung 840 pro 256 gb+1tb hdd
32gb RAM 1600 Mhz.
nVidia Quadro 2000.
Win 7 Pro 64bit

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AutoCAD Civil 3D :: Remove (delete) All Breakline Sets Included In Definition Of Surface

Oct 30, 2013

I would like remove(delete) all brealkine sets inluded in definition of surface.

Document doc = Autodesk.AutoCAD.ApplicationServices.Application.DocumentManager.MdiActiveDocument;
Database db = doc.Database;


However, I don´t understand how I can get type of Surface Operation..

This code line doesn´t work.

if (OperationColl[i].GetType().ToString()== "SurfaceOperationAddBreakline")

Autocad Civil 3D 2014 +SP1
Quad Core Intel i7 3770-cpu 3.40Ghz.
ssd samsung 840 pro 512gb+ssd samsung 840 pro 256 gb+1tb hdd
32gb RAM 1600 Mhz.
nVidia Quadro 2000.
Win 7 Pro 64bit

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AutoCAD Civil 3D :: Error Adding Breakline Message When Editing Surface With Feature Lines

Jul 11, 2012

I am working on a 6 mile highway project whose surface file is 85MB big. So, I created a Data Shortcut of this surface and used this for creating profiles. However, at some locations the corridors go below the surface(as per their original profile) which was not intended. So, I need to restrict the surface to follow the corridors but not go beyond it.

I have created feature lines from corridors and tried to add them as breaklines to the surface. But " error adding breakline" error pops up. 

Is it because I am trying to add the breaklines to the mirror surface which I created from Data Shortcut ??

Will it be useful if I copy feature lines to original surface file and add these feature lines as breaklines in that file??

Windows 7 x 64
Nvidia Quadro 2000
24 GB Ram
i7 960 @ 3.20 GHz
Civil 3D 2012

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AutoCAD Civil 3D :: Delete A Breakline And Keep It In The Drawing?

Dec 12, 2011

I have a feature line in my drawing. It is one of over 1000 breaklines in a surface. I want to delete it from the surface but keep it in the drawing. How do I do this?

In 2009 this was easy. I could erase the featue line then use the OOPS command to get it back in the drawing. Unlike the UNDO command, OOPS did not put it back in the surface definition. This was a wonderful feature/bug. In 2012 OOPS behaves the same as UNDO.

I found this post regarding finding a breakline in the surface definition but that is not realistic with 1000 breaklines.

Here are a few options I have tried:
Delete all breaklines from the surface and add the ones I want. (This is my best option so far.)Copy the featureline to the clipboard, erase it, then paste it back in. (Copying feature lines to the clipboard, or wblock, is very slow. The feature line should be moved back to the orignal site.)Explode the feature line into a 3D polyline and then convert back into a feature line. (Good option but does not work well for curves.)

Civil 3D 2012 SP3 | Win 7 64-bit SP1
Xeon E5-1620 @ 3.60GHz, 16GB Ram | NVidia Quadro 600

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AutoCAD Civil 3D :: On / Off Display Toggle For Surface Points And Triangles?

Dec 5, 2013

Since Action recorder does not work with the surface style display box, is there any way

to automate the toggle of points and triangles display ?

I dont see any command lines that can change the light bulb status?

using c3d 2012

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AutoCAD Civil 3D :: Surface Triangles Not Appearing In Object Viewer

Mar 7, 2013

Today I opened a file that has previously worked perfectly well, only to find that when I open my surface in Object Viewer and begin to rotate it manually, the triangles making up the surface do not appear. I have the contour lines and border (what is enabled in the Edit Surface Style/Display/Model tab) although the triangles (which should be displayed as well) do not appear. Other surfaces show like they should.

Is there another option other than the Edit Surface Style/Display/Model tab and the VISUALSTYLES command?

using Civil 3D 2013.

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AutoCAD Civil 3D :: Added Featurelines To Surface As Breaklines - Triangles Still Crossing

Mar 25, 2013

I added three feature lines to my surface as breaklines.  But the triangles still cross them.  Triangles shouldn't be crossing breaklines.

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AutoCAD Civil 3D :: Exporting Surface Triangles Using Genio Export Extension (2013)

Mar 11, 2013

with the Genio Exporter. I need to export the surface triangles from my job, but the Genio export dialouge box only gives me the option to export suface boundaries.

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AutoCAD Civil 3D :: Add A Surface To Blank Drawing / Then Upload DEM Files To Surface

Oct 2, 2012

I am issues with DEM files that I am downloading from the USGS website.I download 24k, elevation for the area I need. I then choose staged 1 second, add a surface to a blank drawing, then upload the DEM files to the surface.

The surface imports correcty, but when I try to import  points taken by a surveyor on the same drawing, they plot incorrectly.The DEM surface and the points from the surveyor do not correspond. Also, the DEM surface is in meters, not feet. I have tried changing drawing settings, datum types, coordinate types, etc.

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AutoCAD Civil 3D :: Get Original Vertices (vertex) From Breakline

Nov 5, 2013

I would like to get original vertices(vertex) from breakline.

With  SurfaceBreakline.Vertices  property I can get a ObjectId collection of them but generally will contain more vertex that original vertex because it depend of "weeding factor" values and "suplementing factor" values.

How can I get only original vertex from breakline?Perhaps, API should have other property to get only original vertex from breakline.

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AutoCad 3D :: Drawing Of Jug - Tessellation Lines Showing As Triangles

Jun 23, 2011

I have created a drawing of a jug from a CAD learning manual, however when I enter HIDE mode the tessellation lines show as triangles, not rectangles as shown on the image in my book.

It appears fine before HIDE (horizontal and vertical lines only) -- I've tried FACETRES but that just creates a higher amount of triangles during hide.

Is there a way to adjust how it's shown in HIDE mode?

I have attached 2 images (or tried to!):
1 - Before HIDE.
2 - After HIDE.

I need 2 to look like 1 on the surface.


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AutoCAD Civil 3D :: Automatically Creating Breakline From Existing Surfaces?

Nov 15, 2012

Our company, was contracted to create a DTM of a residential neighborhood using our Lieca HDS C10 Laser Scanner.  Utilizing the Leica software I was provided LandXML file that contained a 2ft by 2ft Mesh surface along with breaklines for the edge of roadway, driveways and sidewalks, which was imported into Civil 3D 2012.   

Our client now wishes for us to provide them with a breakline for the crown of the roadway.  My first thoughts on calculating such breakline was to set the Contours at an interval of 0.05' to identify the crown of the road, then drawn the break line along the crown based on contours. 

Is there a way to automatically create a Breakline from Exisitng Surfaces? 

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AutoCad :: Drawing Show Up As Small Triangles With Exclamation Mark Inside?

Jun 27, 2012

I am having an issue with an xref in one of my drawings. There are AEC_WALL objects in the xref file but in my drawing they show up as small triangles with an exclamation mark inside.

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AutoCAD Inventor :: Standard Drawing Symbols - Main Rev Balloons / Triangles

Jul 5, 2012

The company I am working for has dragged their CAD kicking and screaming into the late nineties and have upgraded to 3D! Recreate their drawings using 3D models, I have noticed the symbol gallery doesn't provide such things as Rev Balloons or Rev Triangles.

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AutoCAD Civil 3D :: Copy Surface And Paste To Another Drawing?

Sep 13, 2010

Can I do that? I want to import a surface from another drawing to my design drawing.

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AutoCAD Civil 3D :: How To Export Surface STYLE To Different Drawing

Feb 10, 2012

I customized a surface style to show relative elevations, with lighter tones representing higher elevations, and darker tones representing lower elevations.  With a single glance, I know the high and low spots in my project area.

C3d provides several default surface elevation styles.  None of them comes close to providing the instant, data-at-a-glance information that my customized style does, which I use to design stormwater systems.  Again, it's really useful to see, with one look, where the high and low spots are in my project area.

I can't figure out how to export, transfer, copy, whatever, my customized style from one drawing to a new drawing.  If I want to see my customized style, I have to recreate it from scratch in each and every drawing where I want to use it.

How to transfer a surface style from one drawing to another?  By the way, I tried opening up both drawings, with both toolspace/settings windows open.  Tried dragging and dropping the customized style to the new drawing.  Didn't work.

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AutoCAD Civil 3D :: Drawing With Surface Still Referencing XML File

Feb 12, 2013

I have been provided survey data in the form of an XML file that I am using to build a surface.  Everything is fine, except for the drawing with the surface is still referencing the XML file.  What is the best method to remove this reference and have the surface fully contained in one file?  Using C3D 2012.

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AutoCAD Civil 3D :: Inserting Goggle Earth Surface To Drawing

May 10, 2012

I am trying to insert a goggle earth surface into my drawing. It hits 50% and then I get a fatal error. Had tried several times.

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AutoCAD Civil 3D :: Supply Client With Drawing And Exist Surface

Aug 20, 2013

I need to supply a client with a drawing and exist. surface.But I don't want them to have the survey data or points.What's the best way to handle this?

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AutoCAD Civil 3D :: Triangles Not Seeing Break Lines

Apr 17, 2012

Putting in a simple berm crest, and the triangles skip right over a certain section. Swap edge does nothing and adding points seems to make things worse. I have been able to fix this problem before, but only by deleting my surface and then putting all the pieces back in at once. Then it's perfect. 

I think part of the problem may be that the "Contour help" I put in at the blue major contours is screwing things up.I have had the same issue when putting in down-slope channels as well.

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AutoCAD Civil 3D :: TIN Triangles Showing Up On PDF - 2012 SP2.1

Aug 15, 2012

Whenever I try to use the "DWG to PDF.pc3" driver, I'm getting TIN triangles in my PDF.  They don't show up in the "Print Preview", just in the resulting PDF.  They also don't show up if I print directly to a printer.  Only in the PDF.  Never saw this before installing SP2.1.

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AutoCAD Civil 3D :: Reading Triangles From File

Nov 14, 2011

I am running 2011 c3d on windows 7 with 15 GB of ram.

An error message I get is "reading triangles from file" and the program locks up to where you need to do a reset on the computer. I have an existing ground surface that is data shortcut into the file I am opening when I get this error. The existing ground surface is about 5 mg in size. I'm not sure if this is causing the error. 

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AutoCAD Civil 3D :: Drawing Has Disassociated Surface And Alignment Data References

Aug 28, 2013

I am working on roadway project where I am using Pipe Networks to layout the drainage infrastructure.  I have set my working dwg up so that I am data referencing the existing surface and proposed alignment.  I have set my pipe network up so that it is also referencing this surface and alignment.  Everything was working fine.  Labels were pulling the correct information from my surface elevations, and stations were being referenced as well, until I got a message that recommended that I recover my drawing. 

I ran recover and my surface and alignment data shortcut disappeared. My pipe network now shows questions marks where there were once stationing and it appears that the surface and alignment have completely disassociated themselves from my drawing, however they appear in the prospector, but cannot be refreshed.  Again the data shortcut symbol is no longer next to my surface and alignment, but there is a symbol telling me that those objects are being referenced by another object in my drawing (my pipe network).   I have tried refreshing, resetting the working folder, all to no avail. 

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AutoCAD Civil 3D :: Make Sure Annotated Surface Labels Spot Elevations From 3D Design Drawing

Dec 19, 2013

How can I make sure the annotated surface labels spot elevations from my 3d design drawing which is being xrefed into a new Precise Grading Breakout Sheet plots screened?

The Label Style which I created for the annotated surface label spot elevations has all its properties set to be ByLayer for example its color and lineweight.  The Layer I assigned the Label Style was assigned to a layer with a color and plot style that should plot any object screened.  Color 8 and Plot Style Screened.

What other steps am I missing to assure myself that this Label Style will plot screened in my new Precise Grading Breakout Sheet?

I also made sure that the xref drawing in which this Surface spot elevation has the correct colors and lineweights and Plot Styles in my new Precise Grading Breakout Sheet.

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