AutoCAD Civil 3D :: Grading Object Projection

Jun 18, 2012

I am having difficulty projecting an existing feature line at a specified tie-in slope.  I have a steep (3:1) feature line that I need to project at a specific slope (2.5:1)to intersect a surface model.  When I create the grading object the generated grading object is not 3:1 along the feature line and 2.5:1 perpendicular to the feature line.  Instead I am left with a new slope that is 1.9:1 between the generated contours.  I have attempted slope to surface as well as slope for a distance.My design criteria is to not exceed a 2.5:1 tie-in slope.

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AutoCAD Civil 3D :: Projection Grading Create Segments On Parent Feature Line

Dec 12, 2013

When we apply surface projection gradings to feature lines, we get locked vertices on the feature line wherever the grading transitions from cut to fill. In turn these vertices create segments in the feature line which influence any labels applied to the line. I don't want a bazillion segment labels on my FL. I only want segment labels between the physical vertices and elevation points. Is there a workaround or is an enhancement request in order?

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AutoCAD Civil 3D :: Grading Slope Projection - Correct Surface To Implant Photovoltaic Structures

Jun 12, 2013

I am looking for grading utility in autocad civil 3d. So, i need to smooth my projection slope to target the surface without projection steps. The objective is to correct a surface to implant photovoltaic structures.

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AutoCAD Civil 3D :: How To Create Intersection Line Between 2 Line Projection - Grading

Aug 24, 2012

 I have feature line with elevations that represents bottom of ditch and want to go UP 3:1 slope. also i have edge of road feature line that is higher than ditch  and want to go 2% down until it hits side of the ditch that is 3:1. Any easiest way in civil 3d to create intersection line between ditch bottom going up 3:1 and edge of road going down 2%?

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AutoCAD Civil 3D :: Complex Object Grading

May 21, 2012

I am tring to grade a complex object. Please see the attached document. The two grading objects are not interfacing correctly when graded although i can get the surface almost correct i beleive. Is there a way to remove this issue or the grading will not create a lot of difference when computing the volume clacs ( we are talking volum computation roughly about a million cubic metres cutting).

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AutoCAD Civil 3D :: Grading Object Stability?

Mar 20, 2012

Has the grading objects become anymore stable than they are in '09? Unfortunately, our company hasn't been able to upgrade to a newer version and we are beginning to get to the point where 'hand grading' everything is taking too long. I am proficient in using the grading tools, but everytime I do, my drawing becomes corrupt. I want to push us to the newer versions if at all possible.

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AutoCAD Civil 3D :: Grading Object Infill

Oct 9, 2013

I am creating a simple, and although it's large (100 million gallons), the grading object routine is relatively simple.  I have the inside crest of the berm and I'm grading down 40-50 feet.  Everything is fine until I infill the bottom of the basin and then the infill line around the perimeter of the bottom has two points that are way below the actual bottom, like another 100+ feet.  The two points are on opposite sides of the basin so obviously it throws off the whole resulting surface and causes earthwork calculations to be invalid.  

I've tried various sizes and shapes, having the crest feature line both "open" (with a tiny gap) and "closed", straight and arc shapes for the crest, grading to elevation and to relative elevation, and probably more.  This problem seems to appear in each scenario.

Version: Civil 3D 2012 on a Dell PC

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AutoCAD Civil 3D :: Extract Boundary Of Grading Object?

Mar 7, 2012

I like the 'Extract" feature for surfaces, where I get get the contours or boundary of a surface in PL form without having to explode the surface. I have not figured out how I can do that same thing for grading objects. So far I have been exploding grading objects and then remaking them. Seems cumbersome.

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AutoCAD Civil 3D :: Grading Object / Daylight Lines

Sep 19, 2013

Where are the setting for the display for grading lines such as features, daylight lines, etc in the standard grading pallet?

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AutoCAD Civil 3D :: Force Grading Object To Polyline Boundary?

Mar 4, 2013

I am working on a complex industrial site.  And I would like a constant grade of 3.00% from my road intersections to the edge of curves.  I know if I used a corridor, I'd be able to tell the grading to project ot the edge of the road/curve. 

I'm just wondering if I can tell a grading object to project to a polyline or feature line along a intersection curve?  There are many reasons as to why I'm not using corridors for this project, but I don't want to get into that.

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AutoCAD Civil 3D :: Section View For Pond Grading Object

Jun 9, 2013

I created a Pond Grading object with the associated surface. How can I cut and plot Section Views of the Pond Grading object just as I could do(using "Create Multiple Section Vtews" command) with Corridor object of a Linear project?

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AutoCAD Civil 3D :: Infill Grading VS Feature Line Grading

Dec 24, 2013

"An infill grading has no criteria applied to it. Any area bounded by feature lines or lot lines that is not already a grading can be converted to an infill grading."

So given an area enclosed by a feature line, an infill grading can be created. Using the same features line, an feature line grading can also be created. what is the difference between these two surfaces? They both have no criteria applied to them.

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AutoCad :: Extract Projection Outline Of Nonsolid 3D Object To 2D Lines

Apr 25, 2013

I wish to have outline/surface of those nonsolid 3D object convert or projection into 2D lines that can be use later.

For solid object, its can be projecting the surface by FLATSHOT command. But for nonsolid object, this command is doesn't work and showing nothing when I tried.

These nonsolid object probably copy/export from other software ie. some analysis software.

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AutoCAD Civil 3D :: Projection Between Two Files

Aug 9, 2012

I just ran into a projection issue with a couple of AutoCAD files. There is a possibility that one of the files was originally in Microstation and in meters before it was converted to AutoCAD but I'm still trying to confirm this now.  The problem that I am running into is that AutoCAD Map doesn't allow you to xref or attach other CAD files and use  different projections. I have one file in Maryland State Plane, Feet and a second one which appears to be in Meters and I can't get them to overlay or for the file in meters to come in at the right location when it is xrefed.

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AutoCAD Civil 3D :: Feature Line Projection

Sep 26, 2013

Is there any way to project feature lines into a profile when the plan view is xref'd? I have my plan view "existing topo" with all existing features/Figures and a existing surface.

My profile is a separate dwg with plan view xref'd and surface a data shortcut. Of course there are feature lines and Survey Figures in the existing top I want to project into the profile, but can't because it is an xref. Besides copying .

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AutoCAD Civil 3D :: Cross Section Projection

May 12, 2012

if i have one feature line i want to project to all sections in a sample line group it would seem you should be able to pick the one line and assign in a label style and you would be done quick and easy. instead if you pick the multiple projection option you get this percentage distance box and it tend to grab stuff you don't want.

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AutoCAD Civil 3D :: Display Projection In Titleblock?

May 18, 2006

If there a way to display the projection of a DWG file in the titleblock? Maybe using fields, or a diesel expression of some sort?

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Maya Modeling :: Convert A Wrap Deformer To Be A UV Projection Object?

Apr 14, 2011

I'd like a more intuitive way to set up UV maps in Maya. It seems to me that there should be a process similar to using low polygon models as wrap deformers. Basically I figure that the low polygon would act as a projection wrap allowing for less UVs to adjust but enabling a very good flow of the texture map around any polygon, subdivision, and NURBS model of any complexity. Is there such a thing? If not, is there a way I can convert a wrap deformer to be a UV projection object?

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AutoCAD Civil 3D :: Old Projection System And Transformation To GGRS87

Sep 16, 2013

i am located in Greece and the current progection is GGRS87 .

before the GGRS87  we had a system named HATT with the folowing info:

 maps 1/5000 based on the Bessel ellipsoid (1841)

i have many drawings with point coordinates in the old system. is there a way to transform them in the new projection?

what else info is needed for the transformation.

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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 :: Produce Projection On A Surface (from Polyline)?

Jan 30, 2012

I have started to use CIVIL3D 2007 instead of LAND-DESKTOP 3.

My question is: When I used LDD I created a surface, then drew a polyline and by right-clicking chose "Project object".

This option produced many new points along my polyline which I used for my design.

When I tried this with CIVIL 3D I couldn't find this option.

I can create a quick profile, however, this is not good for me because I need the data as a collection of points with coordinates & elevation, and not as an image.

Is there any way to produce a projection on a surface (from a polyline)?

Or getting some information from the quick profile in the way I need?

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AutoCAD Civil 3D :: Choose Projection On Importing Points

Aug 9, 2012

I have a .dwg file with an AT-LCC projection assigned to it. There are some .shp files connected to it.

Can I choose the projection of to-be-imported-points when I import some laserscan-files in ASCII format? So I can tell AutoCAD: these points are in MGI-AT.AUT-Central/GK projection, please convert them to my desired projection.

There is a method which takes much too long:

open a new document assign the origin-projection (here; MGI-AT.AUT-Central/GK) to the fileimport the pointsexport the points as .shp file, define a projection-system conversion to target projection (here: AT-LCC)open the file with the target projection assigned to it (here: AT-LCC)import the .shp file

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AutoCAD Civil 3D :: Sharing Custom Projection Files With Multiple Users

Jul 29, 2013

How to share custom projection files with multiple users?  I created a custom projection for C3D on my computer, now I need to give it to several other people.  Can't seem to find where this file is stored.

C3D - 2014,

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AutoCAD Civil 3D :: How To Raise Grading

May 9, 2012

Is there an easy way to raise an entire site by 1.0 foot and have the grading hit the previous targeted surface?  The only way I have found is to grab all the feature lines and raise them up by the required amount, but by doing that, the grading bogs down my system and it crashes, plus, I have grading attached to 3dpoly's and not necessarily all feature lines.

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AutoCAD Civil 3D :: Grading Toe Disappearing?

Apr 25, 2013

I am drawing a pond levy.  I draw the outline of the top of the fill, set that at the elevation I want, then grade it down to the existing surface on a 6:1.  The grading works perfectly.  The outline of the fill's footprint shows up just fine around the back of the fill, but the toe line doesn't show up all along the front side of the fill, but I still get the slope lines projecting down in the front. 

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AutoCAD Civil 3D :: Use Grading For Channel?

Mar 6, 2012

I want to cut a channel through a existing surface; bottom width: 5 feet; at elevation 1950 and side slope 1:1 (45deg) up to existing ground.

What I am doing right now is create a feature lines 5 feet wide, at el 1950 and use grading tool to project it to existing ground with side slope at 1:1. What i am doing is correct?

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AutoCAD Civil 3D :: Grading Subdivisions

Oct 16, 2013

I am working with Civil 3D 2014, I played with 2009 back in 2008 and before that it was Land desktop.  I don't know if I am not following a standard workflow.

Build the EG from contours.Layout the CL for the ROW and convert to a horizontal alignments.Create the profiles.Design the vertical alignment in the profile.Create the assemblies for the different types of road sections.Full profile, pavement width assembly, the curb return assembly, the daylight left / right, 1/2 side left / right, and pavement width left / right.Build the corridor, set the target surface as EG or FG, depending on where the section of the corridor is located. (At the edge of the property to EG, then after the first building pad to FG)This is where I have a thought something is wrong. If I am grading the entire site, why would I have the ROW grade to the EG, when I will need the surface to grade from the ROW to the closest building pads?Create the intersections, using the different types of assemblies, per the ROW sections.Create feature lines and use elevation editor to set all the elevations around the pad.Using the Grading creation tool, grade to surface, using a 2:1 side slope. Then adding an infill to the pad.

 I keep having the file crash after grading about 10 lots. I recover and it works find, but then the file runs very slow, and will crash. I haven't taken any classes in Civil 3d, and am looking for one in my area.

I am use to creating the vertical surface then creating points along the CL, TBC, FL, BOW then creating break lines along the points. Then create a break line for the pads, and build the FG contours from these break lines.

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AutoCAD Civil 3D :: Grading From The Side

Aug 8, 2012

Say I have a grading that runs north south and goes down 2%, up 2% and so on waffling along. Is it a poor practice to trace the side edge of the grading (in the same site) to add another grading to pitch east west?

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AutoCAD Civil 3D :: Grading Transition

Mar 4, 2013

I have a building pad where I created a grading of 5:1 to existing grade.  I want to change one side to 20:1.  How do I go about transitioning the 5:1 to the 20:1.  I create the 20:1 and the contours just dead end into the 5:1 grading area

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AutoCAD Civil 3D :: Grading With Different Slopes

Dec 31, 2013

I tried to work with grading but it didn't work,

1 - The square helicopter pad is flat and grading with 2:1 fill, 1:1 cut.
2-  The second FL is 2% slope down and grading with 2:1 fill, 1:1 cut.
3-  The third FL is slope down to meet the existing road, both sides will same cut and fill.

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AutoCAD Civil 3D :: Helicopter Pad Grading

Dec 30, 2013

I am creating a helicopter pad, with cut slope 1:1 and fill 2:1. But when i created a transition between the pad and existing road, i don't know how to. I have added a feature lines and make a separate grading but somehow it didn't work.

I have attached here the dwg file (C3D 2014) .

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