AutoCAD Civil 3D :: How To Convert 3D Polyline Contour To Polyline Contour

Mar 24, 2013

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

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AutoCAD Civil 3D :: Set Multiple Polyline Elevations For Contour Data?

Nov 13, 2012

I am working on three different projects at once. For each project, I was sent a drawing with contours as polylines. Each contour is broken up into polylines about fifty feet long each at elevation 0. I am trying to set the polylines to proper elevation without editing each one individually. Each drawing contains several hundred polylines to modify. I was hoping for some sort of way to use a fence and interval (2') with a starting elevation.

I've searched the internet but haven't found a lisp routine to do this. I thought I remember Land Desktop having something like this, but can't seem to find it in Civil 3D 2012. I have found several threads asking the same question. Each time the poster was referred to a blog 7629. That blog unfortunately seems to have been taken down. If I can’t find an answer soon, it looks that my best option would be to retrace each contour which makes me glad to be paid hourly.

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AutoCAD 2010 :: Fitting Polyline Contour To A Curve

Nov 19, 2012

I have a sinusoidal curve, that I've created using a third party app, which has worked really well. But the app only produces the form in a straight line and i now need to fit it to a number of curves.

I have a form of 3 radii and a couple of flats, which the sinusoidal form needs to fit along. All this work is just in 2D as i need to output the dxf into a CNC machine.

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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 2D :: How To Convert 2D Polyline To Polyline

Jun 25, 2008

I have 2D polylines and want to convert to polylines, but to no avail. Tried to 'spline2pline' this line, but ACAD refuse to select it.

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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 :: How To Convert Polyline Into Alignment

Oct 30, 2013

How to convert polyline into alignment?

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AutoCAD Civil 3D :: How To Convert Polyline Object (with X / Y / Z) To TIN SURFACE

Sep 2, 2012


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AutoCAD Civil 3D :: Convert A Feature Line To A 3d Polyline?

Jul 13, 2011

Feature lines are easy to make and great for grading.  However, when I try to save the drawing into *.dxf, all the feature lines disappeared. Does this mean DXF files do not take feature lines?

I need the DXF files to up load into GPS.  Do I have to redraw everything in 3D polyline?Or is there an easier way to convert feature lines into 3D polylines?

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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 :: Convert SurveyFigure To Polyline Object

Nov 11, 2013


That code is also useful for feature lines or parcels?

Can I get polyline Id after we can create automatically?

I want calculate all location crossing between feature lines.

Currently, I know to do that for crossing polylines.

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 :: Convert Polyline To Feature Line For Use In Grading

Aug 22, 2012

I'm working on crane pads for a windfarm development and have run into an issue that has never happened in the other 60 or so ones I've done previously.

I have a polyline (elevation added in via Properties) that I want to convert to a feature line for use in grading but when I try to convert I get the message below

When I check the properties and do a LIST the list reports a negative elevation.

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AutoCad 2D :: Drawing Polyline To Have Tooltip Box Show Cumulative Length Of Polyline

Nov 6, 2013

Is there a way, when you are drawing a polyline, to have the tooltip box show the cumulative length of the polyline, rather than the length of the current segment being drawn?

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AutoCAD Visual LISP / AutoLISP :: Reduce Polyline With Multiple Vertices To Single Polyline

Jun 7, 2012

I would like to take all the vertices out of a multiple-vertices polyline so that it reduces to just its start and end points, can this be done?

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AutoCAD Visual LISP / AutoLISP :: 3D Polyline To Polyline To Spline With Max

Sep 21, 2013

Due to modeling purposes, I need to convert a 3D polyline to a spline. What I have been doing is:

- change polyline fit/smooth to cubic from properties
- convert polyline to spline by typing spline -> object
- method -> fit from properties

You can see the original 3D polyline (green) and the resulting spline (magenta) in the attached drawing.When I zoom in and measure the distance between the two entities at different points along them, at some points the perpendicular distance exceeds 5 millimeters, and I want to ensure the deviation remains under 1 millimeter or even less.

I know I can change the knot parameterization of the spline, and this does work at some locations, but the difference increases at others.Why is there a 5.6 mm difference between the spline fit point and 3D polyline vertex, as measure in the attached drawing?

Now, I can go and manually stretch the fit point to coincide with the vertex. Also, I can add fit points between existing ones to drag the spline closer to the original 3D poly.

However, some of my polys are really long, and it is very time-consuming to do this manually while measuring points along the entities to make sure the distance stays small enough.

how to automate this process? For example a lisp that would maybe take the original vertex points, add say maybe 3 (not too many) new ones between them, and then generate a spline while making sure the deviation is less than the set value of 1mm? I am using AutoCAD 2013.

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AutoCAD .NET :: Getting Polyline Data Into A Custom Derived Object (from Polyline)

Nov 11, 2013

I've been working on a custom polyline object, and I've got it functioning!!Having said that, I plan to run its creation around picking a point for bounary selection.

(Other than trying to step through every vertecies) is there a technique I can thow the polyline data from a traceboundary result into my custom object? I've been trying to add the polyline from traceboundary to my object BEFORE it's added to the transaction by the way...I assume that's right, since I want to put it's data in my custom object then add my custom object to the transaction instead.

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AutoCad :: Automatic Join Polyline Onto Existing Polyline?

Sep 16, 2011

Is there any way at all to draw a new polyline - from the endpoint of another polyline, and have it automatically join as one polyline from the existing section??

I know this can be done via PEDIT, but its so laborious and soo many clicks, and I have alot of segmented Polylines that I need to consolidate when I draft.

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AutoCAD .NET :: How To Find If Polyline Is Inside Another Polyline

May 18, 2011

How do you find 'if' a polyline is inside another polyline?

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AutoCAD Civil 3D :: Contour Labels 2

Sep 20, 2011

When generating a line of contour labels with Contour-Multiple, most of the labels are orientated properly but some of them on the line are rotated 180 degrees. Why aren't they ALL orientated in the same direction?

Also, sometimes, all of them will be orientated in the wrong direction such that they are, essentially, upside down. Is this a bug or is there a setting to adjust?

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AutoCAD Civil 3D :: Contour Labeling

Jul 10, 2012

I have recreated two surfaces for my design, existing and proposed.  I had used polylines for contours for in each surface.  I tried labeling the contours but it will not let me select the contour itself. 

I then tried to make the contours to 3d polylines and again added them to the surface and rebuilt.  I still am not allowed to label the contour since it doesn't let me select the polyline.  I am able to select the surface however. 

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AutoCAD Civil 3D :: Grid From DEM Contour

Nov 21, 2013

When I create a grid from our OSIP DEM files the contours come in as a block. I usually do 1' and 5' contours. I would like to break these so that when I select a 1' contour it will show up individually with elevation data still attached. If you select one now, it selects the entire grid. If you explode it, you lose the grid file. Is there a way to do this or will a just have to label the contours so I know where I am at?

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AutoCAD Civil 3D :: Contour Labels Will Not Add

Dec 16, 2013

I am using Civil3D 2012 and have a drawing that will not allow me to add Contour Labels.

Unable to create contour labels

Issue You were unable to create contour labels. When you tried to create a single contour label, you could not select any of the contour lines of a surface. When you tried to create multiple contour labels, the contour label line disappeared after you selected the second point.

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AutoCAD .NET :: Convert Line To Polyline

Oct 28, 2012

I want to convert a line (Autodesk.AutoCAD.DatabaseServices.Line) to a polyline (Autodesk.AutoCAD.DatabaseServices.Polyline).

Currently I get all the properties from the line, create a new polyline with it and delete the line. I fear data may get lost this way. What is the best way to convert a line to a polyline?
// Line properties:// Color.// Layer.// Linetype.// Linetype scale.// Plot style.// Lineweight.// Hyperlink.// Thickness.// Material.// Start X.// Start Y.// Start Z.// End X.// End Y.// End Z.// Start point.// End point.

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AutoCad :: Convert 2D Polyline Into 3D Using 2012?

Jun 28, 2012

How to convert 2D polyline into 3D polyline using AUTOCAD 2012?

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AutoCAD Map 3D :: Convert Polyline To Polygon

Nov 28, 2012

I've MAP 3D 2013 64 bit (French version) with SP1. 

When I launch command to "Convert polyline to polygon" (_MapPolylineToPolygon), I've message on command line "Select objetcs", I can convert to polygon =>OK

If I launched this command a second time, I've no possibility to select object, I come back to command line.I quit MAP, then launch MAP, and I can use this command only 1 time.

This problem appears after SP1 was applied.

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AutoCad :: Convert Spline Into Polyline

Apr 24, 2011

I have one drawing but this is Spline but i want to convert it into polyline. without tracing it. i attach my dwg file with this massage.

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AutoCad 3D :: Convert Spline To Polyline?

Jun 3, 2004

How can I convert Spline to Polyline.

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AutoCAD Civil 3D :: Contour Lines All One Entity?

Sep 15, 2012

I have a client that just started using C3D 2010.  When I sent him a topographic survey with contour lines (I am also using C3D 2010) he called me and asked if there was a way to select an individual contour line and have it display the elevation in the 'properties' dialog box.  I have not been able to find an answer for him.

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AutoCAD Civil 3D :: Batch Label Contour

Jun 5, 2013

How to label all the contour at one go.

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AutoCAD Civil 3D :: Broken Contour Lines

May 9, 2012

Is there a way to quckly join contour lines that have been broken where the contour elevation is?

example, if this were a contour line     ---------501---------    

I'd want to delete the contour elevation and join the line to make a continuous contour line.....

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AutoCAD Civil 3D :: Surface Contour Extraction

Apr 27, 2011

I have a drawing set to UTM83 Zone 14 Meters and my drawing units is set to meters also. I created my surface from my point cloud. When i do the contour extract feature (surface object extract), the contours elevation is in the wrong datum or elevation? The surface contour is 620 but the same extracted contour says 188.97? Curious why this happens. It seems to me that it is back calculate elevation or datum to a different coodinate system.

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