AutoCAD Civil 3D :: Grading Will Not Create Surface

Jul 19, 2013

I have two separate graded levees in my drawing. One has created a surface just fine, the other absolutely refuses to generate a surface. I've deleted the grading even the feature lines and re-did them. In my grading group I have automatic surface creation checked and the volume base surface checked. I show the surface in the prospector but there is nothing there. The one levee will show contour styles but this one ZIP!

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AutoCAD Civil 3D :: Grading To Create Dump Surface

Apr 24, 2012

I'm trying to replicate a dump surface from a cad file, but this one is rather different from what i'm used to (more simple and poligonal).

This one is curved and the  top of the platform has inclinations has the picture shows.

I'm having trouble on finding the best way to aproach this dump surface. I tried to start from point 2 with the curved feature line and grade back 2% till EG and then grade forward 10% till it reaches point 3 at elevation (900) , but when i grade forward the sides obviosly dont hit my EG.

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AutoCAD 2010 :: Create Proposed Surface Using Grading?

Feb 21, 2013

I am trying to create a proposed surface using grading. I created a closed polyline representing the site's outer boundary then created a feature line from it. When I try to select the feature line in order to create the grading I get "THIS FEATURE OVERLAPS ITSELF AND CANNOT BE GRADED".

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AutoCAD Civil 3D :: Surface From Grading Objects

Jun 20, 2013

It has been too long since I created Grading Objects and Proposed Surfaces. I am working in a file with my existing surface DATA Linked. I am creating a grading plan. I have created three separate grading objects in the Site named Proposed. One in the building, One is a new ditch, one is a graded existing ditch. I need to make these three with the unaffected areas of the existing surface into a new surface. How do I accomplish that . All my grading objects appear to be individually accurate and are created with a Feature Line and Grade to Surface Styles.

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AutoCAD Civil 3D :: Grading Downward To Surface

Aug 1, 2012

I have a feature line that is below the surface of an existing earth dam embankment. I want to grade downward from that feature line at a shallow slope until it daylights somewhere down the embankment slope. How do I accomplish this? All I can get it to do is slope upward (cut) to the existing surface.

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AutoCAD Civil 3D :: 911- Interim Grading Done But Says No Surface?

Apr 11, 2012

did an interim grading to use as elevation reference for a feature line that will be created, i did the same procedure before but now suddenly when i create a feature line - it does not pick up any elevation from the surface of interim grading..

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AutoCAD Civil 3D :: Grading Automatic Surface Creation

Aug 7, 2013

I attached 3 pictures describing my problem.

On the first one you can see the feature lines i'm about to grade. The closed line is a pond and the two lines on the right is a riverbed. The area between them is just land.

On the second picture you can see a part of the surface i need to get by grading. I need the pond, riverbed and land to be one surface.

On the third picture you can see what happens, when i try to grade the riverbed under the same grading group. The pond surface disappears while the grading stays.

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AutoCAD Civil 3D :: Creating Grading To Surface With Slope?

Dec 30, 2013

I am trying to create grading slope from a Feature line that was created at a constant elevation of 609m.  I want to create a slope of 3:1 from the feature line to a surface I created.  I recall in AutoCAD Civil 3D 2011 that you could create a slope directly to a surface.  Is there a way of doing that in 2014 or did I simply forget a step when I created my Grading Groups?

I created the grading group using the Grading Creation Tool Pallet and selecting Set Grading Group.  Then I set my target surface to the one I want to grade towards. I thought all I had to do than was go to Create Grading select the direction of grading and the slope.  I thought the slope would continue to the target surface but it asked for a distance for grade that would throw off any volumes I want to pull off.

Did I have to create a new surface for my Pad at 609m than grade from that and how would I make sure my slope continues till it contacting the surface I want to target?

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AutoCAD Civil 3D :: Corridor Grading - Slope To Surface

Dec 12, 2013

On my corridor I am using Link Slope to Surface, using a 3:1 slope. But it is giving me a 3:1 slope radial to the corridor - what I really need is a 3:1 slope between the contours themselves. On the inside of a tight curve, this makes a big difference. See the attached screenshot. Is there a workaround for this?

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AutoCAD Civil 3D :: Lowering Surface For Mass Grading Purpose

Nov 1, 2013

I have a 5 acre surface which includes a 2 acre parking lot.  I want to lower only the parking lot area to bottom of sub grade level and then grade back to surface at 10:1 for mass grading purposes. 

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AutoCAD Civil 3D :: Grading To Existing Surface From Feature Line

Aug 2, 2012

I have an existing surface with a steep slope and a feature line for the edge of a proposed walkway.  I need a buffer of 25m  on either side of the walkway but offsetting doesn't take the grade of the slope into account.  How do I grade down the hill from the feature line at 25m to match to the existing surface?

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AutoCAD Civil 3D :: Grading Tools - Creating Proposed Grade Surface?

Feb 21, 2013

I'm trying to create a proposed grade surface using the grading tools. I drew the outline boundaryof the proposed surface as a closed polyline then created a feature line from it and assigned different elevations to it. When I try to select the feature line in order to create the grading, I get "THIS FEATURE OVERLAPS ITSELF AND CANNOT BE GRADED". What could be a possible reason for this?

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AutoCAD Civil 3D :: Multiple Selection Surface Site Grading On Prospector

Aug 28, 2012

When a file has many surfaces, gradings and sites manually delete them is slow ¿is there a method to select multiple sites, surfaces and gradings on prospector and delete them all at once and not one by one?

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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 :: Create Grading Not Working

Feb 22, 2012

I have an Existing Surface i created from survey data. I have a Proposed Surface i created with feature lines. Now i want to create grading around the outside portions of my Proposed Surface. I create the Grading Group and specified a projection surface and selected a Criteria Set for a 3:1 slope to match back to Existing Surface. I select the Feature Line i wish to create the grading from and progress through the cut and fill prompts and nothing happens. Nothing gets created. I have tried an audit on the drawing to see if errors are causing the problem and there are no errors.

I use this tool all the time and this problem comes up frequently. Especially if i have made any surface adjustments.

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AutoCAD Civil 3D :: Create 3Dline From Intersection 2 Grading

Jun 11, 2013

I have 2 feature line and need to create a 3Dline from 2% slope from both of them.

Not to mention I have more that 100 feature line like these.

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AutoCAD Civil 3D :: Create Grading Using Multiple Layers

Aug 31, 2012

I am designing a fill volume. I have created my surfaces and feature line. My topos however are on two seperate layers as one is existing ground and the other is engineered ground. How can I get my grading to work using two layers in a grading group?

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AutoCAD Civil 3D :: Create Grading Plan For Solar PV Site Or Golf Course?

Feb 28, 2013

how to use Civil 3D to create a grading plan for a solar PV site or a golf course?

Here is the situation.  We have a large 100 acre site that is not flat.  We want to do minimal grading to "smooth out the surface".  So that maximum slope on the site is 10%.  The site does not have to be graded completely flat.  We are trying to work with the existing contours and terrain as much as possible.

Is there some functiion or some way for Civil 3D to "smooth out a surface"?  We want to work with the existing slopes and contours of the site and just need a grading plan that will smooth out mounds, holes, or high slope areas.

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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 Civil 3D :: Grading Creation Tools To Create 3:1 Mounding For A Stock Pile

Mar 7, 2013

I have a Grading Plan that is getting increasingly unstable as time goes on... I used Grading creation tools to create 3:1 mounding for a stock pile that is on my site... there are a couple dozen mounds on the site for this stock pile...

My problem is when I go to edit any feature lines or Grading; the drawing just crashes and will not save my work... I ran an audit and it does not find anything... I need to get the grading done ASAP and this is a major hold up... Do I need to go back through and manual grade everything or is there a secret that I am missing?

I have read multiple forums on the matter with older version of Civil 3d... so this is to tell me that the problem has never been fixed with Autocad?

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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 :: Linking Objects - Create Grading Feature Line For A Stoop

Sep 4, 2013

Is there away to link a i.e. (a stoop to a finish flood elev)? So that, if I were to raise the finish floor, the stoop would move also. I understand I could possible to a create grading feature line for a stoop, but what happens if the stoop would be irregular shapped and not a rectangle?

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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 :: 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 :: Create Surface On Something Other Than WCS

Aug 3, 2012

Can a surface be created from a UCS that is something other than the WCS? For example, can you create a surface for a vertical wall, or a battered almost vertical wall?

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AutoCAD Civil 3D :: Create Surface From 2D DGN?

Feb 3, 2010

I work in both Microstation(PowerCivil) and Autodesk(C3d 2010) platforms, unfortunately not very proficient in either. We use both due to project requirements. I have no say in the format what-so-ever. Now to the point.. I am working on a project thats survey is a 2d .dgn however I am to create a model from this information (which happens to be just text spot elevations no intelligence attached) and supply it in C3d..Is this Possible ?? Or would it be easier to just do it in PowerCivil (I have made surfaces with 2d objects before with) and convert to .dwg upon completion ????

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AutoCAD Civil 3D :: Create Tin Surface By Cropping

Jun 5, 2012

Any experience with the Tin Surface CreatebyCropping Function.

The specific stumbling block I have come across is the best way to deal with the database that is required to export the new cropped surface to as it has to be different from the current drawing. I don't actually need the cropped surface to be saved but need to be able to adjust elevations and extract the tin from it. The tin would then be used to generate a pregrade surface in the base drawing. Previously I had done this with non-destructive boundaries but I find the cropped surface to be more accurate. 

Civil 3D 2013 - Windows 7(64 bit)

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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 :: Create Surface From 3D Data?

Oct 31, 2013

I am working in Civils 3D 2014 and I have a survey with points already on the correct elevation layer, I have tried creating a surface from this but it does not show up.

My process:

- I create a new drawing and insert a block (my topo survey) and click explode when I do this

- I create the surface by TIN and make sure I have the correct layer for the points that I am selecting

- Click ok

- Then go into that surface and turn on all layers and refresh - still nothing

- I also made sure that my surface style was 1m contours so I would definately see this.

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AutoCAD Civil 3D :: Create Surface From GIS Data

Dec 16, 2013

I have created a contour layer in MAP and need to bring the data into Civil (to create and EGL surface) which I usually I do via an alter properties query.

There is the Create Surface from GIS data in 2014 but this requires shp files so the two questions I have are:

Can the contour layer be output as shp files (and if so how)?

If yes, is this easier/more efficient than my current workflow?

(No connection with Autodesk other than using the products in the real world)

IDSP Premium 2014 (mainly Civil 3D 2014 UKIE SP1 & Infraworks with some limited 3ds Max Design)
Win 7 Pro x64, 256Gb SSD, 300Gb 15,000 rpm HDD
16Gb Ram Intel Xeon CPU E5-1607 0 @ 3.00GHz (4 CPUs), ~3.0GHz
NVIDIA Quadro 4000, Dual 27" Monitor, Dell T3600

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AutoCAD Civil 3D :: How To Create Actual EG Surface

Jun 12, 2013

I am start  work in civil 3d 2009,  I have a project started in LDD2009 and am trying to migrate to civil 3d 2009. I have imported the points, tin, and contours but cannot figure how to create an actual EG surface. Can some on etell me how to create and actual EG surface using tthe tin and points.

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