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 :: Breaklines Which Aren't Added To A Surface?

Feb 29, 2012

I am using a breakline to establish contours around the foundation of a building.  I've done this in the past with no problems.  Now I'm getting an Event Viewer, Error message saying that the breakline wasn't added to the surface because it crossed a point or crossed another breakline.  In one case there wasn't another breakline in the drawing. 

I've used 3d polylines & others to establish the breaklines.

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AutoCAD Civil 3D :: Mask 0 NOT Added To Corridor Surface As Boundary Due To Crossing Polygon

Jan 24, 2013

I'm looking for solution for this error: Mask '0' NOT added to corridor surface 'Corridor - (1) - (1)' as boundary due to crossing polygon.

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AutoCAD Civil 3D :: Resolve Non-existent Crossing Breaklines

May 30, 2013

Dealing with an old topo.  Building a surface from a point group of points in the drawing, and 2D polyline being used as proximity breaklines.

Here is my list of events after I rebuild the surface:

So I went to use the 'Resolve Crossing breaklines' tool, and here's what that looked like:

So are there or aren't there?

When I use the 'Zoom to' feature, it takes me to the midpoint of a TIN line on a breakline, with no other objects around.  Crossing window selection: only the surface and one polyline. I found one crossing breakline just by accident, not from either of these tools.  After I fixed it it didn't change anything.  I even deleted all the breaklines from the surface and added them again, closed drawing and reopened, no change.

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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 :: Get Surface Breaklines

Dec 4, 2013

I have this:

for(int i=0;i<= tinSurface.BreaklinesDefinition.Count-1;i++) { .................

 I have each breakline sets, but I want each breakline of each breakline set(breaklinesDefinition).

I can do this:

Autodesk.Civil.DatabaseServices.SurfaceBreakline sfb = default(Autodesk.Civil.DatabaseServices.SurfaceBreakline); SurfaceBreakline sfb= trans.GetObject(id,OpenMode.ForWrite) as SurfaceBreakline;
But how can I get ObjectIdcollection of surfaceBreakline of one breaklinesDefinition?

I have seen that there is "AECC.Interop.Land.SurfaceBreaklines". Do I have to use this?
Autocad Civil 3D 2014 +SP1
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ssd samsung 840 pro 512gb+ssd samsung 840 pro 256 gb+1tb hdd
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nVidia Quadro 2000.
Win 7 Pro 64bit

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AutoCAD Civil 3D :: Locating Breaklines Amongst Many And Removing From The Surface?

Dec 7, 2012

I had some inaccurate survey points in my EG. Now I have new points and breaklines. How to locate thes old breaklines either within the list or visually within my surface editing / style. 

The zoom to doesn't work as there are many breaklines within the zoom extents, and 1000's of breaklines to sift through.  Is there a setting somewhere in the surface where i can turn on the breaklines that have been added already to something that's visible so i can delete those out of my surface?

I'm looking for anything on this one. (Not the obvious answers thought). Delete all and replace all (not happening).

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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 :: 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 :: 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 :: 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 :: Surface Points Added From File / Can Change Their Style

Mar 14, 2013

I can only change the layer color.

But I can't change the cross simbol, its drwaing scale.

Also cant view the point number,....

Maybe I cant view or set these properties when points were added using   "Point Files" option.??

Civil 3D (2013)

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AutoCAD Civil 3D :: Numbers Of Points Added To A Surface From Point Cloud?

Jan 7, 2013

I know that there is a limitation on the numbers of points added to a surface from a point cloud.  But I'm curious how Civil 3D determines which points to exclude from the surface.  Is there a special alorithm/criteria the software uses?

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AutoCAD Civil 3D :: Featurelines Not Snapping And Duplicates?

Dec 3, 2013

I have a strange problem with some featurelines in one of our projects. I have recorded the error because it is hard to describe. Below is the link to download the short video. I have tried running the audit and purge commands an no errors are reported.


System Specs:

IDS 2014


Xeon 1270 @ 3.50GHZ

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AutoCAD Civil 3D :: Non Destructive Breaklines

Oct 6, 2013

I can't just accept something cause it's the way it is. I like to know the reasoning behind it.

Case in point:

Why does the check box say "Non-destructive breakline?" Why doesn't it say, "Erase tin lines that cross boundary?" I doesn't seem to have anything to do with breaklines. Or am I wrong on that one?

While I'm on a roll, double negatives send me into a tailspin. Like "Disable description keys", True or False. Huh? Why not just say, "Description Keys", on or off?

HP DV7 Laptop
Intel Core i7-3820QM 3rd Generation Quad Core 2.7 GHZ CPU
16 GB DDR3 RAM ( 2 DIMM ) / 180 GB SSD
Nvidia GeForce 650M Graphics w/2 GB Memory
Windows 7 Professional 64 bit / AutoCAD Civil 3D 2014

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AutoCAD Civil 3D :: Breaklines And Contours

Nov 26, 2013

I'm having problems contouring in C3D 2014.

I'm using the command PL - polyline to create my break lines (Centerlines, top and bottom of curb)?.

 In this particular drawing the first point I click on is carrying the elevation throughout the entire length and yielding bad contours.

Essentially the bottom of curb on each side of the street should be the same elevation with a crown at the centerline.

Instead the elevations are about five feet different because the beginning point is around the corne at a point of tangency on a hill.

This has not happened in any other drawings and I've done them the same way.

I redid the breaklines with the 3DPOLY command and aside from a few minor edits the surface came out OK.

I've been reading about 3DPOLY command but have not found out too much about what the actual difference is between 3DPOLY and PL commands.

Seems like 3DPOLY is the way to go. 

I do not have too much experience with C3D 2014 and am making a huge jump from 2004 LDD. How to build 3D surfaces/contouring.

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AutoCAD Civil 3D :: Mid-Ordinate Distance With Breaklines?

Oct 19, 2007

Where can I set the default for my mid-ordinate distance when adding breaklines to a surface. Would like to change it from 1.0 to 0.1.

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AutoCAD Civil 3D :: 2012 TinSurface Breaklines

Feb 27, 2012

Using the COM Interops we can find the entities which were used toi create surface breaklines:

foreach (AeccSurfaceBreakline brklin in brklines) { object[] ents = (object[])brklin.BreaklineEntities; for (int i = 0; i < ents.GetLength(0); i++) { AcadEntity en = (AcadEntity)ents[i]; //do whatever with the Entity }}

 I have, as yet, been able to figure out how to get the entity(ies) using 2012's .NET API. Is it possible, or do I have to stay with COM?

foreach (ObjectId surfId in CivilApplication.ActiveDocument.GetSurfaceIds()) {TinSurface surf = tr.GetObject(surfId, OpenMode.ForRead) as TinSurface;if (surf != null) {SurfaceDefinitionBreaklines brkdefs = surf.BreaklinesDefinition; for (int i = 0; i < brkdefs.Count; i++){Surface Operation AddBreakline brklines = brkdefs[i]; for (int j = 0; j < brklines.Count; j++){ SurfaceBreakline brkline = brklines[j]; //well, as of C3D2012 SP1 the actual entity associated with this breakline is not exposed via .NET} } } }

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AutoCAD Civil 3D :: 2013 Deleting Breaklines

May 30, 2012

In using 2013 I noticed when I delete a feature line which is added to a surface as a breakline it does not delete it from the surface. Even after a rebuild the surface does not update.  I am having to go into the toolspace and manually delete the breaklines from the surface list.

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AutoCAD Civil 3D :: Filter 3DPolylines / Breaklines

Aug 9, 2013

Can you filter 3dpolylines to find which ones have a vertex at 0 elevation? I do not see the option in the Object Selection Filters dialog. We have several 3dpolys which would take a while to go through each vertex.

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AutoCAD Civil 3D :: Selecting Breaklines Where Are Grips?

Dec 3, 2012

Using the select breaklines in the prospector doesn't do much of anything in my case. Zoom to Breakline works but how do you determine one particular breakline in the bunch if theye were never named?

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AutoCAD Civil 3D :: Contours Running Through Breaklines

Sep 27, 2012

I am having an issue with my contours running through my breaklines (feature lines).  I have tried re-ordering the breakline, edits, etc and have also set my settings to allow crossings.

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AutoCAD Civil 3D :: Arc Or Feature Line As Breaklines

Jan 7, 2014

I am building a surface and have back of curb, curb face, and curb flowline going around a curve.  I cannot create the lines with the usual pline as they will cross due to poor field collect.  I created the curbs with multiple arcs.  I was then going to change them into Feature Lines and am wondering if I can then use them as breaklines in a surface. 

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AutoCAD Civil 3D :: Ignore Contours Between Breaklines

Aug 27, 2012

The situation is like this:

I am having a survey plan both with points and contour lines. Points are comming from the main road and contour from the outside areas.

I want to be able to make the surface ignoring the contours between the breaklines of the road since any contour inside professional survey is giving me errors on profiles and everything.

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AutoCAD Civil 3D :: Insert Breaklines To Drawing

May 8, 2013

I have created linework using the line by object tool.  I have created a surface and am trying to add breaklines by selecting some of this linework.  Once I try to create the breaklines, it says that all those breaklines contain errors and have not inserted them into the drawing. 

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AutoCAD Civil 3D :: Triangulation - Adding Extra Breaklines

Apr 4, 2013

how to fix this triangulations.  Adding extra breaklines does not seem to fix the issue. 

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AutoCAD Civil 3D :: Crossing Tin Lines

Dec 3, 2013

I have built a alingment, corridor, and surface of a driveway but I have a few holes in my surface.  I tried to add lines to my TIN surface and some filled in properly but others would not and I had TIN lines that crossed (actually they are 4 different lines that meet at on point).  Why does this happen and how can I fix it?

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AutoCAD Civil 3D :: Breaklines Giving Wrong Contour Elevations?

May 19, 2013

I'm somewhat new to Civil 3D 2013 and have never encountered this problem before. I've got a top slope standard breakline (dark green line) and bottom slope standard breakline (light green line) with the highest elevation for the top slope at 72' and it gradually slopes down to about 54' within a 75' span. My problem, as you can see in the screen shot below, is I am getting 54'-59' elevation contours right next to a survey point with a 72' elevation whenever I hover my mouse over one of the contours. There are no nearby points with anything near 54' even outside of the surface boundary (shown in magenta).

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AutoCAD Civil 3D :: Crossing Pipes In Profile?

Mar 12, 2012

I have two pipe networks and two profile views, one for storm and another for sanitary.  I would like to show the crossing pipes on each of the profile views.  When I select the profile view, add a pipe and change the style to crossing the style is change to crossing on the other profile view (ex. on sanitary profile view I set storm pipe 3 to crossing style, on the storm profile pipe 3 changes to crossing style and does not display).  Isn't there a way to display the styles for pipes different in each profile view?

C3D 2011 (latest updates)
Win 7 Pro, 64-bit

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AutoCAD Civil 3D :: Median Crossing Centerline

Sep 12, 2013

It can be done using the LaneFromTaperedMedian subassembly, and that there is a webcast explaining it. I have checked with Autodesk, and the webcast is no longer available. Any detailed instructions as to how to accomplish this. I'll attach an image of my median.

Win 7 64BIT
C3D 2013

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