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.
I need to create a subgrade surface for a landfill project. I have already created profiles and sections on a 200x200 ft grid along a baseline alignment that follows the center of the proposed landfill. In my profiles and section views I have drafted in my proposed subgrade elevations.
Is there any way to create a surface by selecting critical points along the profiles & sections? I would prefer not to use a grading group b/c the site is in excess of 200 Acres, and the grading tools tend to crash Civil 3D 2009 on large sites.
I have a finished grade surface created for my site but I want to lower the parking lot portion of it to subrade elevation. What would be the ideal way to lower a portion of a surface?
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.
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?
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
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.
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.
I have a section of road that has super elevation from -6% to +6%. The asphalt layer (top green) supers from -6 to +6 but the base course (red) only goes from -4 to +6. I attached a sketch for some visual information.
What subassembly recommended for this scenario?
Is there a way I can set max values for the subgrade? Or an assembly where I can use superelevation for the top and for the subgrade?
I am using C3D 2012 but can use 2013 if it makes a difference.
Civil 3D 2012 SP4.0 Windows 7 Enterprise 64-bit C3D 2014 SP1 Dell M6600, Core i7 @ 2.3GHz, 16 GB ram Dell T3500 workstation, too much ram
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.
Is it possible to add a base depth to the transition lane assembly? I need to do volumes for my road, (pavement, base) but there is a section with a transition (which only has one depth), so that section is off.
C3D 2012 SP3..I want to label the subassembly I have created. It is easy enough to create the label style and apply it through the code set styles. I want to drag the labels for pavement depth, creating a leadered situation. Why does the program create multiple labels for each marker or link? Can this be limited to one lable for the marker and link?
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?
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 ????
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.
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!
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.
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.
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
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.
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.
I just upgraded to Civil3D 2014 and Windows 8. When I create a TIN surface using a DEM file no contour lines are displayed. Points are processed and triangles are created and can be displayed but no contour lines. Contour line layers are set to display in the style file.
I use RocTek for cut/fil calculations, but the program is old and basic, I'm trying to transition to Civil 3D 2012 right now. Typically I create "no work zones" around my building footprints, so that I can do a more detailed take-off in those areas for over-excavations and that sort of thing. Right now I'm using Civil 3D to create an existing surface, a proposed surface, and then a volume from between the two. I thought if I just traced my proposed contours over the existing within the building footprint that I would get what I was looking for. However, analysis of the cut/fill volume shows that there are still some changes being made around the edges of the building.
Is there a specific way to make a proposed surface, but leave parts of the existing surface untouched?
See attached photo. The upper middle portion of the screen is where the building is (forgot to turn on layer).
I would like to create surface from contours and extract points (with value) from on it. I had contours in my drawing; each major and minor contours are single polyline with elevation (Z value).
If I create surface form CONTOUR, some polylines (major or minor) are not included in to surface. After the creation of surface, I tried to erase the existing contour lines (Polyline) from drawing but the surface will be disappearing.
If I create the surface from ''DRAWING OBJECTS'', I'm not able to select the polylines (attachment 01) .
Attached is a dwg file that refuses to complete the surface triangulation. Can some try this? The maximum triangle length is set to off. I'm out of guesses. If I move the furthest point around it will complete the surface but just not in it's current location. Point number 69
I recently upgraded to Civil 3D 2013 and now all of my "Create Surface" commands do not work. I get the message " _AeccCreateSurfaceGridFromDEM Unknown command "AECCCREATESURFACEGRIDFROMDEM".
If i have a GPS Survey which i can create a surface from and 2D mapping from GIS records, is there any way to turn the 2D mapping into 3D using the surface data?
Is it possible to model a surface in Civil 3D with an inverted rock face as in the cross section below? We will be scanning a large hill for quantitiy before and after they blast so will be using point clouds.