AutoCAD Civil 3D :: Link Offset To Surface?

Oct 10, 2012

When I use link offset to surface and attach on left side, still extend to right.  I am targeting a slope stake line polyline that exists on both sides of the roadway, works fine on right side. Documentation indicates that a negative offset value is needed to use to the left.  How do I use negative value and target a polyline?

model (1) is the result on the left

model (2) is the correct result on the right

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AutoCAD Civil 3D :: How To Create Offset To Tie To Surface

Aug 17, 2013

I'm creating a containment dike around and island.  I want the berm to tie down to the existing surface, then offset from that tie point 21' to the surface again.  I can do an offset from Baseline, or a tie to an elevation in a profile.  What I can't do is make the offset 21' from the tie location over an additional 21' to another tie point on a surface.

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AutoCAD Civil 3D :: Offset A Surface Perpendicular To All Grades

Apr 7, 2010

Any way to raise/lower a surface, but is there a way to offset a surface basically 1m (to make it easy) perpendicular to all grades? Because when you raise/lower a surface, if you have a 3:1 slope, it will raise/lower it vertical 1m or so, but then the perpendicular distance between the 2 surfaces is less then 1m.

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AutoCAD Civil 3D :: Surface / Offset Profile Always At ZERO (0) LAYER

Apr 9, 2012

Every time I created surface profile, offset profile and sections it always at ZERO (0) LAYER. All label, grid, etc always at 0 layer. What is the correct way of doing it to assign at the proper layer?

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AutoCAD Civil 3D :: Link Slope To Surface

Nov 7, 2012

in my link "link slope to surface", i have the slope set to -2.00%. in the cross sections, it is at a +2.00%. why is this thing not linking at the defined -2%? see image.

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AutoCAD Civil 3D :: Link Slope To Surface Projection?

Nov 21, 2013

I am re-routing a small stream. I am using generic links for the bed and side slope. I whant the side slope to be 3:1 and project beyond the existing culvert wall in the eg model. can this be done easily?

HP Z210 Workstation
Intel Xeon CPU E31240 @ 3.30 Hz
12 GB Ram

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AutoCAD Civil 3D :: Corridor Surface Ignoring Vertical Link?

Nov 6, 2013

For some reason the surface created by my corridor is ignoring the vertical link on the edge of the subassembly.  How can I get it to include that?

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AutoCAD Civil 3D :: Point File Link To Surface Lost

Mar 18, 2013

I think this should be an easy thing to do, but I am having problems figuring it out.  I need to repath the location of a point file being used in a surface.  My surface will not rebuild because it can't find the point file originally used.  Drawing was used on a different computer system, so the point file directory is now pointed to the wrong path. 

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AutoCAD Civil 3D :: Create Subgrade Surface Using Base Link

Aug 21, 2013

I just tried to create a subgrade surface using the base link.  The surface turned out to be wrong because some of the points in the Lane Outside Super Layer Varying Width subassembly are uncoded. Everything I've looked at seems to be programming related (over my head).  Do I need to download a composer for 2014?  I didn't see one on the list for 2014.

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AutoCAD Civil 3D :: Link Slope To Surface With Maximum Width

Nov 20, 2012

From the subject is there any way to apply Link slope to surface with maximum width 

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AutoCAD Civil 3D :: Transitional Lanes And Link Slope To Surface

Aug 4, 2012

I am having trouble getting my assembly to work in my corridor.  I have a Basic Lane Transition subassembly with a Link Slope to Surface subassembly attached to it.  The assembly follows my centerline alignment and the lane widens as designed out to my offset alignments.  The slope grading to daylight works fine until the transitional lane starts to widen, then the slope assembly stays at the same point on the lane and does not stay linked to the end of the lane. 

I am also having trouble getting the subassemblies to attach to the proper points.  I keep trying different OSnaps unitl one seems to work, but I am never sure the subassemblies are connected properly. 

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AutoCAD Inventor :: Extrude Feature And Select Part Surface For New Sketch - Offset Surface?

Dec 9, 2011

I am a beginner when a extrude a feature and select a part surface for new sketch now i want is to offset that surface but i can,t there is + sign with mouse icon and something like fully constrained is written in down the window.

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AutoCAD Civil 3D :: Offset Lisp Routine To Offset Selected Line?

Jun 7, 2013

I need an offset lisp routine to offset a selected line a set distance on each side of the selected line and change the layer of the offset lines to the current layer, and then keep prompting me to select the next line for offsetting until I'm finished.

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AutoCAD Civil 3D :: Create Station-offset Label Style That Will Drop Trailing Zeros In Offset?

May 14, 2012

I am trying to create a station-offset label style that will drop the trailing zeros in the offset section - e.g. 15' instead of 15.00', but if the offset is not at a whole number, e.g. 15.01, etc.  it will display the entire offset.

I created two expressions:  IF(OFFSET-TRUNC(OFFSET)=0,.1/12,.00000001/12)

and this one:  IF(OFFSET-TRUNC(OFFSET)!=0,.1/12,.00000001/12)

I then created two offset components, one called truncated, and one called full, and assigned the heights to match the expressions. 

I have attached the file, the style is ACHD-Sta Off-Rt [copy]

C3D 2011, Win x64

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AutoCAD Inventor :: Offset Surface For Parts Too Complex To Shell

Jul 24, 2012

The problem: a complex curvy part will shell 0.5 mm but not 3mm - some of the surfaces fall inside the others.

A work around : Offset each surace (individually - not quilt) then stich & sculpt.

A program: To offset an enclosed surface, individual face by face, internally. Then manually stich to identify any errors & patch accordingly.

Note these parts have 100's of faces so the code would be useful - not sure how to always offset the surface to the inside of the volume.

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AutoCAD Inventor :: Link Surface Area IProperty To Table In IDW

Jan 24, 2013

I have created a simple iPart that has three length variations, and therefor has three different surface areas.

I have added a simple table to my drawing. The table is linked to the iPart, I have used the column chooser to select the appropriate parameters to illustrate the length variations from the iPart. I would also like to include the surface area for each iPart member alongside each length variation in the table.

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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 :: 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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AutoCAD Civil 3D :: Corridor Surface Will Not Paste Into Empty Surface

Mar 26, 2012

all of a sudden whenever I run audit on my corridor file the surface definition becomes a snapshot. To add to the drama, the corridor surface will not paste into an empty surface. Why?

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AutoCAD Civil 3D :: Can't Use The Corridor Surface As DATUM Surface

Feb 7, 2013

My problem added with pic ... I want to make volume calculate for sample road project. When I try to  compute materials I cant use Corridor surface for DATUM... There is only target surface on option..

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AutoCAD Civil 3D :: Adding Corridor Surface To EG Surface

Mar 6, 2012

I am trying to visualize a road project. The problems is, whenever the corridor surface goes below the EG surface (when the road is in cut) the EG surface is the only visible surface.

I sort of need to subtract the corridor surface from the EG surface, or merge the both surfaces into one.

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AutoCAD Civil 3D :: Trim Surface To Another Surface

May 3, 2013

I was wondering if there is an easy way to trim one surface to another.  Right now, I have two slopes (3:1) that are perpendicular to each other. They meet at a corner and I have extended them past each other so that I could see the intersecting edge.  Now I would like to trim them to each other like you would a polyline etc... but I am not sure how to do this.

If I select surf trim, it tells me they are the wrong object type, but they are tin surfaces?

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AutoCAD Civil 3D :: How To Get Visibility Of Elevation And Offset

Jan 25, 2013

I turned the visibility of Elevation & Offset label off. How do I get it back. Not all just one spot.

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AutoCAD Civil 3D :: SAC Offset Target Is Valid

Sep 4, 2013

I am using OffsetTaget.isValid in my subassembly.But i realize that when i put this formula it checks the whole drawing for that target and if the target  polyline exist even a piece of polyline in the drawing then C3D considers it for all sample lines.Is ıt possible to be able to check each single sample line if it is going to intersect that target polyline or not?

Civil 3D 2014 x64
Windows 7 64-bit
16GB RAM

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