AutoCAD Civil 3D :: Surface Boundary Blows

Aug 7, 2012

The odd shapes are outside the daylight line.  They follow a straight-line around the daylight limits (see third attached file), apparently triangulating unwanted areas.  I've used a corridor shrink wrap for the surface boundary.

What is the best bet?  I'd rather not draw a polygon along the daylight line and use it as a surface boundary, since it could change.  Setting a max triangle length in the surface does not seem to provide a desired result.

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AutoCAD Civil 3D :: Surface Boundary Only Showing Portion Of Surface Within The Boundary

Oct 24, 2012

I used a 2d polyline to create a surface boundary for a surface created.  The polyline is a closed loop.  For the boundary type it is outer, unchecked Non-destructive breakline, and mid-ordinate distance = 1.

My problem is that when I do this I only get a small portion of the surface to show up within my surface boundary.  If I don't have a surface boundary the entire drawing surface shows up no problem.

The purple polyline is my boundary and the light blue is the surface created within the boundary.

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AutoCAD Civil 3D :: Extending Surface To A Boundary

Feb 23, 2013

I have survey data of the inside floor of a pond ( the pond has a flat floor ). The surface made from the survey data needs to extend to the outline of the pond instead of the outline of the survey points.

I tried the smooth surface method of kriging with a grid base and I sellected the outline of the pond for the output region and that worked somewhat but there are still gaps between the boarder and the surface.

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AutoCAD Civil 3D :: Surface Profile Boundary

Aug 14, 2013

I have alignments that go in and out of a surface boundary (this is because I have a surface that represents the bottom of pavement.)  I want to show the surface profile with the gaps in the profile view (where there is no surface. However in the profile view the gaps are sometimes connected with a straight line instead of being blank.

How can I have a surface profile represent the bottom of pavement properly? (An alignment that is not fully withing the surface boundary.) I know I could add the profile multiple time with different start/end stations But, I don't want that, I want it to be dynamic, as the alignment will change.

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AutoCAD Civil 3D :: Applying Boundary To Surface

May 14, 2012

I have problems applying an Outer boundary to eliminate a small area within a big surface (and a few Hide boundaries within that Outer boundary): Civil 3D somehow creates extra triangles within my surface (that don't really make sense to me). I am applying the boundaries as non-destructive boundaries as I need the surface to extend all the way to my applied boundaries. The surface needs to be untouched (except applying a few Outer and Hide boundaries) as it is design data.

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AutoCAD Civil 3D :: Corridor Surface Boundary

May 22, 2012

When I create a corridor surface I usually create a suface boundary automatically by daylight.Half the time this works fine, half the time it doesn't work at all. If I view the corridor in 3d view it looks fine.

I tried to create a shrinkwrap polyline to use as a boundary but when I picked the corridor in the shrinkwrap command

it locked up my computer. These are just simple corridors with no intersections. Why the automatic boundary only works intermitently? Is there a better/easier way to create the surface boundary?

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AutoCAD Civil 3D :: Adjusting Surface Boundary

Jun 18, 2012

I need to adjust a surface boundary. I need to remove a corrupted area in my surface. I do not need it. Is there any way to drag a boundary so I can exclude some of my contour area? Is there a command under settings on tool space that I may have overlooked? This surface was furnished by a client so I do not want to rebuild or alter except to exclude some contours.

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AutoCAD Civil 3D :: Hold Triangulation Within Surface Boundary?

Aug 17, 2013

what is the trick for holding triangulation within a surface boundary?  I recall a setting somewhere but can't seem to find it...   attached graphic, would like to hold the surface triangulation within the arcs which are in the surface definition as boundary

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AutoCAD Civil 3D :: Convert Surface Boundary To Polyline

Feb 1, 2013

I need to convert my surface boundary to a polyline so I can use it to clip another surface. Is there a simpler way than tracing it with the polyline command?

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AutoCAD Civil 3D :: How To Edit An Existing Surface Boundary

May 28, 2013

I have a surface that I created by joining to surfaces, and now I want to reduce my boundary, how can I edit it? 

windows 7, intel I7, 8 MB RAM, civil3d 2013.

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AutoCAD Civil 3D :: Extend A Surface To Outer Boundary

May 21, 2013

I use Civil 3D 2011. I have created a surface from a point group. Now i want to extend the surface to an outer boundary. To do so, i do the following steps:

- Select the surface and Extract the border object.
-  Create feature line from the extracted border polyline
- offset this feature line (featureoffset) to outside specifying a offset distance and  specifying the elevation difference as 0.
- Add this offseted new featureline as the boundary in the definition of the surface
- Rebuild the surface

Now when i am selecting the surface, I see that the featureline is not a part of the surface and I do not find the contours and the TIN extending to this new boundary. Also I still find the old border in the surface.

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AutoCAD Civil 3D :: Cannot Get Corridor Surface Boundary From Daylight Points

Jun 22, 2012

Cannot get corridor surface boundary from daylight points. Is there another way so that I do not have to trace the outer limits?

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AutoCAD Civil 3D :: Creating Surface Boundary When Using OverlayWidenMatchSlope Subassemblies

Jul 12, 2012

I'm creating a corridor to widen a road on the left and right sides.  I am using OverlayWidenMatchSlope, with various other subassemblies.  In places it daylights, in places there's a cut wall modeled from generic links.  I am trying to create a good boundary for the corridor surfaces but I'm puzzled by one thing.  The OWMS subassembly has a P2 code, but the corridor will not generate a featureline connecting the P2 codes.. 

I will try adding another baseline, and a new subassembly that will just use a generic link to target the sawcut line (the insert point for OWMS).  That should give me a featureline I can use for a surface boundary.  Is there a way to generate that featureline from the inside edge (the insert point) of the OWMS subassembly?

Win 7 64-bit, Intel i7 920,12 GB
Win 7E 64-bit, Intel i7, 12 GB
C3D 2012

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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 :: Corridor Surface Boundary - Line Is Jumping On Daylight Fill

Jun 22, 2013

I have problem with corridor surface boundary , in curve boundary line is jumping on daylight fill , but i have created surface on wearing layer ,also when i am adding boundary there is only 3 types of adding , corridor extends , polygon and interactively , photo attached.

I am using Civil 3D 2014

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AutoCAD Civil 3D :: Surface Corridor Is Not Triangulating Entire Corridor Boundary

Sep 14, 2012

I have created a surface from a corridor.  I set the boundary of the surface to the daylight of the corridor.  In some areas of the corridor the surface does not triangulate see attached.

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AutoCAD Civil 3D :: Query Point Cloud Boundary Then Add All Points Within Boundary

Nov 9, 2012

i need to know if there is any way to control the points in the point cloud.

1. either only import the point cloud in a polyline area i specify

2. add all the points within a boundary not limited to the pointclouddensity = 100, freaking default is 15 almost cost my job today. extremely stressed out right now.

i am talking about extreme lidar surveys. 1km 1km LAS/0.5m contours/xyz files times 355 of them. covers a 2km wide corridor. but i only need 100m wide after i define the road alignment. no need to have all the extra points.

right now i densify the heck out of it and end up like 5-12m points. decent but not good enough because the geotech is bitching about that accuracy is not good for some feasibility study. or is there any software i can do this besides civil 3d.

what i want can also do is automate the 'add points to surface" under point cloud and have the software do multiple boundaries without having me baby it over the night. right now every click is 5 minutes and adds like 400k to 1 million points. Civil 3D 2012

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AutoCad 3D :: Surface Boundary Lines Won't Go Away In Animation View

Aug 1, 2012

So I've been creating a building and I can't seem to get rid of (or hide) the lines that make up the edges of my surfaces (or solid) in the animation view. Is this typical?

For instance, I have one side of the building that is using 4 different textures all on the same plane and they butt up to one another (example: brick meets siding). Where these two surfaces meet the lines that makes up the edges of the surface won't go away. Thus always showing white line showing the boundaries o the individual surfaces.

Can I turn these off, hide them, or am I being a total 3D Modeling noob and missing something basic?

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AutoCAD Inventor :: IPart Assembly Constraint Loss - BLOWS UP

Jan 18, 2012

I've got a relatively simple assembly (attached) containing 3 iparts.  I change the center component the assembly and I lose all the constraints.  Only the length changes, I'm sure I did this before but yet it turns out to be an epic disaster. 

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AutoCAD Civil 3D :: How To Correct / Manipulate Surface To Show Proper Flat Surface

Dec 2, 2011

I often have to do storm pond surfaces that (for the purposes of planning) are flat on the bottom. These surfaces are created from a combination of survey data and grading groups and the tin of these surfaces is perfectably acceptable. However, when contours are shown, the flat bottom is shown with contours jig-jagging all over the place.

The attached image shows a comparison of the same pond. The top was created with survey data and grading groups; the bottom was created using contour data only. The generated surface on the top shows the bottom contour going in different directions and has parts where the an expected contour is missing.

How to correct/manipulate the surface to show a proper flat surface?

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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 Existing Surface Using Edit Surface Command

Nov 14, 2012

I am trying to add points into a surface. I have done this before without any problems, but now I am having issues.

When I ID points which makes up the surface it gives me the correct Z level e.g. 24.5m, however when I hover over the surface it shows me the surface name and a different z level e.g. 0.65m. What is the reason for this difference in z levels? I think this may be causing the issue I am having when I add new points.

I select the surface and use the 'edit surface command' in the ribbon, choosing add point. 

When I add a point at the level I require(23.89m), it puts it in a lot higher than the surrounding area, so I tried to put the point in to the lower z levels (0.4m) it puts it in a lot lower!

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AutoCAD Civil 3D :: Volume Bounded By Existing Surface And Design Surface

Dec 10, 2012

My goal is coming up with the volume bounded by the design surface and the existing surface. I don't have the design surface modeled yet.

Do i need to create alignment offsets?. Alignment 1 profile view is also attached. Then Alignment2.

What about starting with alignment1 profile view? Since I have created a polyline as the design profile ?

how do I shrink labels? Where is it in the settings ; the Align folder had been check.

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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 :: 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 :: Import Surface Into Revit To Merge Surface And Buildings Together?

Jul 29, 2013

I have a project involving 3 programs. I am creating a planned development in 3d to be 3d printed when finished. The project is a 5 acre tract containing 8 buildings. I have built the surface in C3D and each building in Revit. The buildings are not in the same Revit file. For my solid work, I will bring the files over into 3ds Max Design to section into smaller quadrants to build in the 3d printer.

The questions:

Would it be better to import the surface into Revit to merge surface and buildings together?

Would it be better to import the buildings into C3D to merge entities?

Would it be better to bring those entities into 3ds Max and then merge them into one? Will 3ds Max Design allow me to insert entities accurately in the environment?

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AutoCAD Civil 3D :: How To Obtain Overall Site Boundary

Nov 12, 2013

Is there a method to obtain the overall Site boundary? I have not found one, if there is, but it would sure come in handy when creating reports. We must always include the project Boundary as the first item in a report, so being able to add it to the existing reports would be a huge timesaver.

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AutoCAD Civil 3D :: Title Boundary On Profile

Apr 18, 2013

I would like to show the title boundary of our site on a profile in a way that is dynamic. Same idea than on cross sections, where you can create an alignment running along the title boundary and then show a block where the boundary lies on each cross section. I know I could project a cogo point where the alignment intersects the boundary.

This method is not perfect because, if the alignment changes and, therefore, the intersection point with the boundary changes too, the cogo point won't follow the alignment, staying at its original location. Hence, I'll have to update it manually. I tried using a feature line, but it seems I cannot show a marker only where it intersects the alignment.

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AutoCAD Civil 3D :: Hatch Extending Beyond Boundary?

Dec 13, 2012

I've attached a screenshot of the issue I'm dealing with.  I have a closed polyline and when I first hatch the area it appears to be correct, but then I'll go do another command and then the hatch seems to extend beyond the boundaries of the polyline. 

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AutoCAD Civil 3D :: Creating Subset Surface From Main Surface

Sep 15, 2013

I need to create a sub-set surface from my main surface. not sure what the vernacular is for a "subset surface" in c3d but i do have a feature line that bouinds the desired area, but that is as far as i can solve.

i did try creating a new surface - pasted the main surface in the edit definition, then deleted triangles until the boundary alighned wiht my featureline.  This seemed to work, but  when i view the properties of the smaller subset suface, it shows a mimum and maximum elevation that is incorrect.

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AutoCAD Civil 3D :: Create Cut Fill Surface From Existing Surface

Mar 1, 2013

Im currently using an addon for Civil 3D called Novapoint. It allows me to create 3D models of surfaces made out of 3d faces and easily models cut and fill 3d-models for me.

The only thing i need to create a cut and fill model is one or several ground surfaces (existing ground, earth layers, rock etc. whatever i need) and a closed polyline/3Dpolyline that represents the level I want my cut and/or fill model.

I enter the spcifications I want such as; earth cut angle, rock cut angle, fill angle, select which surfaces i want to include in the model calculation and select the polyline.Novapoint then calculates the cut/fill model from the surfaces to the polyline and models the different cut/fill angles and gives me the results in a 3d-face model and a specification of the volyme of rock cut, earth cut an fill.

1. Novapoint is quite unstable and crashes alot

2. You cant create profiles out of 3d faces

3. Novapoint does not automaticly combine the start surfaces with the modeled cut/fill surface

4. A large surface made out of 3d-faces demands alot of computer power 

So I want to how I do the same that Novapoint does for me in Civil 3D? (I have access to Civil 3D 2007-2013 depending on which one you're using)I know I can take the 3Dfaces i created in Novapoint and make a surface in Civil 3D with them but I want to exclude Novapoint completely.

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