AutoCAD Civil 3D :: Extract Polyline Where Two Surfaces Intersect Each Other?

Jul 8, 2008

is there a way to extract a 3D poly line where two surfaces intersect each other.

i have ground surface and i have dam surface. they would like to show the filler material in the cross section graph.. so i copied then raised the surface the required depth.

so now the surface and side slope of the dam intersect. and i would like to trim the filler material surface to be in line with the dam.

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AutoCAD Civil 3D :: Extract 3D Faces From Surfaces?

Sep 18, 2012

I am looking for a better way to get my 3D Faces from a surface into a DXF. Note: I need to have 3D Faces in a DXF as it is the only way my data collector will accept them. My current process is 1)export surface to a XML 2) open new drawing and import XML 3)make the surface style only display triangles 4)extract triangles from surface 5)change my surface style to no display 6)save drawing as a DXF. I don't like to extract the triangles from the original drawing because I am often making adjustments to the surface and then the old extracted triangles and still hanging around in the drawing. I don't want that. Looking to see if it would be possible to record a macro(or some other automated procedure) that would allow me to extract triangles as save them in a new DXF from a selected surface all in one step.

Civil 3D 2014
i7-3930K Overclocked
32 GB Ram
Windows 7 Professional

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AutoCAD .NET :: How To Change Polyline Shape If It Intersect With Another

Jun 21, 2012

I have 2 polyline. First I need to know whether those 2 polyline intersect with each other or not. If they are I need to change one of the polyline shape deduct the intersection area.

How can I do that?

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AutoCAD 2010 :: Extract 2D From 3D With No Solids Or Surfaces?

Aug 14, 2012

I have this 3D refrigerator block from GE and I want to extract 2d front, plan, sides.  I tried flatshot and all the sol's solprof, soldraw, solview and I get a message saying there are no solids or surfaces to extract. 

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AutoCad :: Extract Coordinates Along Polyline

Jan 3, 2008

Imagine i have a polyline(2d or 3d doesn't really matter),and i want to extract the coordinates info of every vertex on the polyline from start to end.

How do i do that in AutoCAD?And if not is there a way to do it on any of the verticals?

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AutoCAD .NET :: How To Extract Intersection Points Between Polyline And Another

Sep 16, 2011

I have some experience with Vb.net.

But I have a problem:

I have a polyline

I select it

The result to be a message box with the intersection points for all the lines, polylines that intersect this polyline.

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AutoCad :: Extract Text From Polyline Area

Sep 11, 2005

How can I extract text from polyline area. Ideally scaled by some factor (drawing in millimeters convert to area in meters).

I need to write a lot of areas of some room etc. into them and i want to know if there is another possibility than select polygon note the area and make text.

I'm unsing AutoCAD 2005 CZ.

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AutoCAD Visual LISP / AutoLISP :: Extract Attribute Tag Value And Draw Polyline

Apr 25, 2012

I have a inserted block with 4 tags for Length, Thickness, Elevation and Width.How can extract attributes tag values and draw a closed polyline + 2 internal lines, parallel to the block?

Block Name: ID_DATA
Tags: LEN, THI, ELE and WID.

Each internal line placed in a third width.

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AutoCAD Civil 3D :: Intersect Two Different Gradings

Apr 11, 2012

I know I should know this, but can't seem to get it to work.

I have two ~parallel feature lines about 250' apart. I grade the Easterly Ft Line going west at a +1.5%, and I grade the Westerly Ft Line going east at a -2.00:1 slope.

I know C3D doesnt have a tool to intersect them, I must use the intermediate surface approach.

What I did was grade one, create 'Paste Surface 1' then grade the other, create 'Paste Surface 2' and then I created Surface 3 and pasted 'Paste Surface 1' and 'Paste Surface 2' into Surface 3. 

Throughout I used 'Grade to Distance'

Surface 3 doesn't come out correctly.

Windows 7 x 64 bit
NVidia Quadro K3000M Dual Monitor
32.0 GB RAM
Intel Core i7-3820QM @ 2.70 GHz
Civil 3D 2013 SP 2

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AutoCAD Civil 3D :: Intersect Two Gradings

Mar 25, 2012

I'm a bit perpplexed about a very simple grading scenario: intersect the daylighting of two gradings as shown in the screen capture. I would like a solution that is dynamic to changes in either of the 2 gradings.

The intended result is in the 3D PDF.

Infrastructure Suite/C3D 2013, LDT 2004, Power Civil v8i SS1
WIN 7 64 PRO
HP Pavillion h8xt, i7 2600, 12 GB
RADEON 6450, 1 GB

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AutoCAD Civil 3D :: Intersect With And Curved Pipe

Nov 18, 2011

I'm using the Intersect With method with two pipes. The Intersect With method doesn't appear to work with curved pipes if the pipes do not cross. If they don't cross the method works, but if they don't then it doesn't find the intersect points properly. This appears to be an issue with Civil 3D 2010 to 2012 API.

[URL]........

In the screen cast image the pipe on the right finds the intersection point with the straight pipe on the left, but not the curved pipe that is in the middle. I've had poor results trying to put in support requests for API related issues.

For Civil 3D 2010 here's the code that isn't working:

oPoints = new Point3dCollection();
Pipe oLateral = (Pipe)lateralObjId.GetObject(OpenMode.ForRead);
Pipe oMain = (Pipe)mainObjId.GetObject(OpenMode.ForRead);

oLateral.IntersectWith(oMain, Intersect.ExtendThis, oPoints, 0, 0);

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AutoCAD Civil 3D :: Convert Metric 3D Polyline To 2D Polyline

Jun 29, 2013

I want to convert a 3D polyline to 2D polyline.

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AutoCAD Civil 3D :: Intersect With Function For Alignment And Parcel?

Jul 29, 2012

I need to determine intersection points between Alignment and Parcels.

In .NET I haven't Parcel object and in COM IntersectWith function doesn't work.

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AutoCAD Civil 3D :: Find Out Where A Sphere And Surface Intersect

Feb 2, 2012

I want to draw a line from the center of this sphere to where the sphere and TIN interesct

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AutoCAD Civil 3D :: Daylight Lines Intersect At Turn Segments

Jun 20, 2012

I've created a corridor with a Cul-de-sac. The problem is that the daylight lines targeted to the existing ground intersect at turn segments: 

which results in defects of corridor surface:

I wonder if there's a way to overcome this.

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AutoCAD Civil 3D :: Align Polyline Onto Another Polyline

Mar 22, 2012

Any way I can align a new polyline to a reference polyline (orig polyline).

The 2 polys will be generally the same length, however, the number of vertices will differ.

Also I need to mantain the same distance between the vertices on the new poly and the new and reference poly won't follow the same direction.

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AutoCAD Civil 3D :: Make Curb Return Profile Without Profile View Like Intersect Command

Feb 28, 2011

I try to make curb return profile without profile view like a intersect command.

I was make curb return alignment but I can not find profile command without profile view.

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Mar 24, 2013

How to convert a 3D Polyline contour to Polyline contour.

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AutoCAD Civil 3D :: Volume From Surfaces

Sep 6, 2012

i'm jumping into 3d late in life...playing with volumes. i've created surfaces from aerial surveys and have saved the surfaces as separate files. i would now like to run volumes of the two as they represent the same quarry site from different years. it appears (?) i need to have both surfaces listed in prospector to run volumes. each separate file has its own surface listed. question...how do i get (import?) the second surface drawing into one of the files so i have both listed and can run volumes? i see where i can create a surface from importing a .tin file...but i don't see how to export the surface as a .tin file.

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AutoCAD Civil 3D :: Surfaces Are Not Updating

Feb 5, 2013

I am having a problem with my data shortcuts for my surfaces not updating. I have 2 surfaces (one ex and one prop) both are on auto-rebuild.  Both of them are in separate files and data short cutted into my profiles files (I have one for water, one sewer and a third for storm drains). Any time I make a change whether I add or subtract data the file the data does not update in the profiles. As a work around I have been creating a new data short cut and adding it to my profiles files. What am I doing wrong that would make them not update?

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Nov 2, 2013

When you paste a surface into another how does it connect the surfaces?  Does it create a vertical wall where at the edge of the paste surface?  Can you tell it to grade a certain slope to the surface you are pasting into?

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Jun 14, 2013

I'm trying to create a surface under my 'existing ground' surface. There is shallow rock where one of our projects is located and using geotechnical data I want to create a 'rock surface' at the known rock elevations. I just want this surface for visual reasons and do not want it to interact with the existing ground or pipe network.

I have 4 places along the roadway where I know the rock elevations. I created new points around each known point with the same elevation so there would be more than just four points on the surface and so I could make it the width of the road allowance. But when I look back to my profile of the road, it shows the existing profile drop to the rock surface at each place that I created points for the rock elevation. Not sure how to make it so the existing ground surface doesn't pick up the new points I added for the rock elevations.

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AutoCAD Civil 3D :: Comparing Surfaces As A Visual

Oct 9, 2012

We will be doing some grading in a park with trees.  Probably maximum depth or fill of 12 inches.  The question has come up to be able to show cut and fill quantities as a visual shade of colors.  I have a way to display cut and fill ticks and it will give me the value, but that's not what they want.  I change the cut ticks to red and the fill ticks to green.  What is the best way to represent this like when you turn on slope percentages and assign different colors.  but I want like 0-2" fill to be red, 2" - 4" to be green, etc.

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AutoCAD Civil 3D :: Correcting Surfaces / Contours

Nov 6, 2012

Im working in Civil 09. I need to adjust the surface I created in order for the contours to be correct. Right now I'm interpolating point elevations to adjust the contours. I find myself adding lines and adding and deleting points. It's tedious. I tried changing the grid spacing to smaller one. It didn't seem to work.

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AutoCAD Civil 3D :: Can Get CV Coordinates For Nurbs Surfaces

Nov 6, 2013

I want to ask, Can I get CV Coordinates for Nurbs Surfaces ? How can I get ?

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AutoCAD Civil 3D :: Multiple Surfaces On One Section?

May 16, 2012

How do I create sections that show multiple surfaces?

All surfaces are existing, none are design. (existing ground, grubbed surface, bedrock surface)

How I miss LDD.

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AutoCAD Civil 3D :: Corridor Surfaces And Superelevation

Feb 26, 2013

I have an alignement to which I have applied superelevation.

The superevation has been applied and the alignment has been annotation and it shows the change from camber to superelevation on  the curves.

However when I create a surface of my corridor it does not show the superelevation, the surface is showing a cambered alignment throughout.

I have created a new alignment, a new corridor and surface and still the same.

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AutoCAD Civil 3D :: LiDAR Generated Surfaces

Jan 14, 2011

I have recently upgraded to Civil 3D 2011 when we started receiving LiDAR data.  I have been playing around with the data a bit and have a few questions on how the data is dealt with.  It appears that when a point cloud is added to a surface, it is using the point cloud display somehow to generate the TIN.  I believe that the point cloud display is showing a percentage of points based on the maximum number of 1.5 million points.  On these particular datasets (citywide LiDAR coverage, about 2,600' x 2,600' panels), we may have 4-7 million points in each LAS file.  Is Civil 3D ignoring all points beyond 1.5 million in surface building operations?  Also, when adjusting the slider, is there any way to know which points will be displayed...or maybe the points are reduced randomly??

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AutoCAD Civil 3D :: Volumes / Grading And Surfaces

May 30, 2012

I have an existing topo surface created as well as grading for a proposed elevated pad of earth done in civil 3d 2013. I simply want to calculate the cut and fill quantities. I created the grading with automatic surface creation checked on. When I use volume tools to see what the quantities are, it says 0.0 for both cut and fill.

I created another surface (TIN) and pasted the existing topo surface and the proposed grading surface into it and I couldn't get any quantities.

I created another surface (TIN volume) and set the base surface as the existing surface and the comparison surface as the surface created from the grading but again could get no quantities.

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AutoCAD Civil 3D :: Connecting Separate Surfaces

Mar 3, 2013

I created a grading and a surface for a pond that is abotu 30' away from a roaway that has a seperate surface.  What would be the best way to connect the two surfaces?  I need a uniform slope from the edge of pavement to the top of berm of the pond.

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AutoCAD Civil 3D :: Combining 2 Cut Area Surfaces

Mar 19, 2013

I have an oddly shapped "cut" area with various elevations that I want to create as a surface so that I can compare the volume with existing survey data. I've been able to get the basic "cut" template in 2 seperate surfaces, but now I want to combine them into 1 surface. When I paste one surface into another, the surfaces go haywire. I have attached a plan and cross section view of what the 2 surfaces (cuts) look like in relation to each other. how I could combine them into one surface and "trim" off the inside grading that overlaps..?

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