AutoCAD Civil 3D :: Topographical Survey That Show Different Gradients / Slopes
Feb 26, 2013
I am new to Civil3D And I am using it for one purpose, Im working at producing planning drawings for solar farms, and the client has asked to me produce topographical surveys highlighting where the gradient or the slope is greater than 15 degrees. Is there someway i can use Civil 3d to do this?
Ideally im looking at producing a 3D Model which has shaded areas for the areas which are above 15 degrees. And Hopefully another shaded for areas between 15 and 10 degrees, 10 and 5 and 5 and 0
The topographical surveys i am downloading at the moment are from a site called promap and are DSM Type?
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May 20, 2012
I have a 3d topographic survey and need to cut sections at various locations.Having worked with 3d models before, my idea was to use the section plain tool, but as this 3d topographical survey is made up of plines I am unable to do that.
I have seen that Autocad 3d civils has a number of fancy tools to do what I require but I am working with plain old Autocad 2010.
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Apr 20, 2013
I am trying to set-up point and point label styles to show trees on a survey plan. The point styles is set with a block, and a label is a regular label style that shows a point number and elevation. The problem comes when the label is positioned outside of the block that represents the point. What I need is sort of fixed offset from the center of the point.
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Nov 19, 2013
I copied some Survey Data of AutoCAD Civil 3D 2013 for Surveyors to my C3D 2013 machine few weeks ago. Now I cannot do the "Import point file" of the Survey2 Data B in Survey Databases, because the Survey2 Data B is locked up - see the attached file that has a red circle with an arrow on. How I can unlocked the locked Survey 2 Data in the Survey Databases.
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May 3, 2012
here's my process:
1- Import the asc file into my drawing.
2- Convert the asc file to a FBK file
3- Import my FBK file. The survey figure linework generated doesn't overlay my previously imported asc file. I checked the FBK file and the coord's match the asc file. I'm confused as to why the survey figures don't overlay the survey points from the asc file, since the coords match in both? The survey figures are all shifted .7' and 54deg. from the points. The elevations are all good on the survey figures, as they match the survey points.
So my quick fix is to explode the survey figures, since I don't really need them for what I'm doing, and then select all the 3d polylines and move them to them to an appropriate survey point. Everything then looks fine and I can get the job done.
However, I would like some insight as to why this might be happening. It's strange that the FBK and asc coordinates match, but the survey figures aren't lying over them.
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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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Aug 31, 2012
I am using Civil 3D 2012. I am drawing a water line in a profile with a vertical scale of 1" = 10'. I am trying to draw lines at 45 deg angles to account for standard fittings.
Now, I tried to block a 45 deg angle and exaggerate the y scale, but for some reason this does not work well mathematically. Is there a way to draw lies at a certain slope, or at a certain angle from another line, while taking into consideration the scale exaggeration?
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Nov 20, 2013
I was wondering if it's possible to add surface slopes on grid (similar to how there is a tool for adding spot elevations on grid). I can do them individually at a grid spacing but that's tedious, and considering you can add spot elevations on a grid, I'm not sure why this wouldn't be possible.
If there isn't a built-in tool for this, would it be possible to make a block of a bunch of one-point spot slopes and you simply choose which surface & the insertion point when you insert the block?
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Nov 15, 2013
I have a ditch and a road that need to follow separate profiles but be integrated with each other as a single corridor and the ditch's 3:1 slope needs to meet up with the road's 2% slope. Is it possible to have the two subassemblies target each other without having to create a dummy surface or a feature line for targeting to?
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Apr 7, 2013
I have a surface and i have the outer border of a pond i want to create (see attachments). What makes it difficult for me is that different areas of the pond have different slopes. The area marked as "A" has a slope of 1:5, the are has a slope of 1:2 and the rest of the pond has a slope of 1:1.
My problem: I do not know how to grade the borderline so i end up having a surface with different slopes as my pond.
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Dec 24, 2013
I am trying to create in my sub assembly a daylight with a variable slope to a graded ditch then it back slopes to natural ground. (image attached). How can I do this in Civil 3d 2012?
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Aug 2, 2013
I have a large ex surface that I have divided into basins and such. I know need to evaluate the slopes in these areas. To do the whole surface at once seems to not be possible. Is there a way in c3d to view analysis information for a section of surface for instance in a polyline or fence?
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Oct 23, 2011
Is there any subassembly can get variable slopes depend on depth like in Land desktop as you can see in the attached file.
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Oct 8, 2012
We Need an expression to round Pipe Slopes to the nearest 0.5% slope. We were working with:
ROUND(({Pipe Slope}/0.5))*0.5
but it only returns 0.00.
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Jun 6, 2013
I am looking for either a corridor style or surface style to display slopes while in plan view while working on a corridor. I know you can turn on slope arrows as a surface style, but I am actually looking for the grade to be displayed next to a slope arrow. Hopefully I am explaining it properly.
I just am looking for a better way to spot errors before putting surfaces into machine control without checking station by station in the section editor.
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Mar 6, 2012
Our provincial standard requires subgrade and subbase surfaces to have a normal cross slope of -3%. The base and asphalt surfaces have a normal cross slope for the driving lane of -2% and -5% for the shoulder.
I have been trying to figure out how to do this in C3D. I have thought of different ways of handling this for a straight tangent, but have not tested them. What is causing me the most grief at the moment is how to handle this in a curve with super elevation.
The transition will be different for -2%, -3% and -5% Runout distances.
Can C3D handle this? What about using Subassembly Composer?
(I should mention that I have tried with Subassembly Composer, but I am not sure how to deal with superelevation. -
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Dec 6, 2012
how to create an assembly with different inclinations of terraces and slopes
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Nov 29, 2013
I just want to start by saying I have been extremely impressed with the speed and effectiveness of finding Civil 3D solutions through this forum. However I do not think there is a way to solve the problem below without making a custom sub assembly.
There is a common problem that I run into when modelling earthworks on airfields. All Taxiways and Runways will have sepirate areas that determine the slope of earthworks in that area. As an example I will explain my problem for a Runway.
Any ruwnay will have a Strip area (150m offset from its centreline) and a Clear and Graded area (105m offset from its centreline). Therefore any earthwork slopes between the runway pavement edge and 105m offset from the centreline will be determined by the requirements within the Clear and Graded Area. Likewise any earthwork slopes between 105m and 150m offsets from the centreline will be determined by the requirements of the Strip area.
My problem is that when overlaying a runway, the new earthworks required may extend beyond the clear and graded area (and into the strip) at some points but not in others.
Therefore I would like a sub assembly that does earthworks at a set slope unless it passes the clear and graded line where it would then continue the earthworks using a different slope. It should be pointed out that the clear and graded line will be present along the entire length of the runway and the earthworks may or may not extend beyond it.
Just for the sake of clarity, when I say earthworks, I mean the subassembly within autocad that will "Cut or Fill" at a set slope until it reaches a chosen surface level. Similarly the "clear and graded line" and "strip line" are 2D and mearly delineate the areas in plan.
save time and make my model more dynamic. As it stands I have been getting around this problem by modelling the earthworks at the initial slope (clear and graded area) and then manually amending the corridor to use a different assembly where the earthworks extend beyond the clear and graded line.
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Feb 28, 2012
What approaches are available in civil 3D to takeoff the surface area of daylight slopes?Which do you recommend for given scenarios?
I tried compute materials but the volume report for cut and fill area is zero - so either I missed something or the compute materials for surface area does not work yet. Then, I tried the QTO manager and linked the corridor codes slope_link and daylight_fill to payitems. Slope_link has a QTO of 1,458,099M2 and daylight_fill has 913.39M2; I have more confidence in the daylight_fill takeoff.
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Jan 6, 2014
Need to identify areas of 100sf or less within slopes exceeding 40%. Is there a simple way to identify this within C3D?
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Dec 15, 2008
I have an existing ground profile, and a design profile. All I want to do is label the slopes of the design. When I click my line label style and turn on the text it labels the existing ground and the design ground. I cannot find the setting in my two profile styles to turn the slopes off in the existing ground.
Oh, how can I get a tick on the V.C. dimension line?
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Jan 18, 2013
I saw on you tube channel [URL].........
How to make this label where I can show the design slope in plan.
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Apr 30, 2012
I am trying to create a label for slopes in cross sections for a surface created from breaklines using gade breaks as you can not weed segment labels
I am weeding the labels out based on the change in grade of the section profile and making the label text high very small of the labels I do not want to see. But the first label returns ??? because there is no grade coming in so I get ??? instead of something usefull like null. Any way to convert?? to something you can evaluate and use.
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Dec 15, 2012
Is there a way to create hatching for the slopes surface style instead of using solid colors?
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Jun 11, 2013
I am looking to create a grid to "Overlay" a topographical map in model space. Essentially this will be built on a seperate layer titled grid that can be turned on or off to essentially "toggle" it. What is the most efficient way to create a grid in autocad? As well as assure the proper scale. Say I want it to have 10 ft. by 10 ft. cells on a topographical map that has a scale of 1" = 50'.
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Sep 28, 2013
I click the gradients panel and then the dropdown of gradients on the left side.
All I see is: White Black, Gold Dust, and Blue Sky.
I know AI has a ton more gradients premade than that so why aren't they in the list? How do I add more to that dropdown?
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Dec 15, 2010
We process survey data using Attributes to add extra intelligence and reduce errors.
For example, when shooting trees, the RAW file will contain something like this:
SS,OP 50,FP1299,AR308.2057,ZE91.0918,SD128.282,--TREE
FC,PN1299,FNTREE
AT,TNSZ,TV11.0
AT,TNTY,TVMAPLE
or when shooting a street sign:
SS,OP 50,FP1437,AR324.1135,ZE91.4728,SD123.235,--SIGN
FC,PN1437,FNSIGN
AT,TNTY,TVNO PARKING
The FC code sets up that attribute information will follow for the point number indicated by PN and the FN is basically explaining the name of the feature type. On the collector, this is all menu driven, making for few data entry errors.
The AT codes list the attributes name TN and then the TV reports its value.
Is there a way to preserve these attributes and their data when processing them into an FBK? Ideally, they would need to become part of a point description.
When processing this for that "other" CADD package, I am able to use these values in building labels for my survey points.
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Mar 15, 2013
I was curious what the basic workflow is for creating an EG from a survey. The catch is that we don't have a point file or elevated points on the drawing. The drawing is just that a drawing with spot elevations and linework. The lot is 100' long and 30' wide. An existing house takes up most of the lot with a street on the front and back. The idea is to try making a grading plan after I figure this first part out. Where would I begin with something like this to figure out the next step of grading a small lot?
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Aug 18, 2009
I was following Civil 3D 2008 Education Curriculum Module 04-Survey on how to import field books, create points and figures, insert them into the drawing, and then (per page 04-35), remove the network from the drawing.
Now I have a serious problem, and cannot add any new Networks. The "Name" and "Description" appears, but there is no place for a cursor entry.
Do I have to re-install the program?
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Feb 25, 2013
Is there a way to have cad automatically create a survey point when a surface point is added manually?
Civil 3D 2013
Windows 7 64-bit
Inteel 2.40 GHz 8 GB RAM
Dell T7600
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Feb 23, 2012
i have a point file specifically a PNEZD file. when i import points into the survey database the coordinate in the database is correct but the coordinate on the drawing tends to be 5 feet off one way and 1 foot off the other. When I import point through the points pull-down menu the coordinates are correctly shown. When I import point into survey database from drawing the coordinate is incorrect in the database but correct on screen.
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