AutoCAD Civil 3D :: Slope Analysis By Direction

Mar 27, 2012

I need to be able to do a slope analysis on a surface, but I need to have it calculate the slope in a direction - east and north.  Any way to do it?  Maybe even if there is a quick way to apply slope labels to a surface based on a grid - say the slope from N0.00, E0.00 to N0.00 to E 25.00

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AutoCAD Civil 3D :: Slope Analysis - Ranges Set To 10

Oct 12, 2006

I can not get the slope analysis to come up with 10 slope ranges. My ranges are set to 10, but my Range details populate to 22? Screen Cap included. I've tried this with Equal Interval, Quartile, and Standard Deviation. Nothing will create 10 intervals.

My "slope analysis" surface style is set to show Slope, with the range set to 10. In surface properties, my range is set to 10.

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AutoCAD Civil 3D :: Slope Analysis Showing On One Computer But Not The Other?

Mar 30, 2012

same drawing, two computers both with Civil 3D 2012 SP1. 

one computer opens the drawing and the surface analysis by slopes shows perfectly, the othe computer opens same drawing and it shows no slope analysis but everything else. They can even change the style and analysis and can view slope arrows, elevations, etc.

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AutoCAD Civil 3D :: Pipe Flow Direction Method - By Slope

May 14, 2008

Is it possible to have pipe flow direction method set to "by slope" by default when we creating new pipes?

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AutoCAD Civil 3D :: Slope Analysis Using LIDAR Topographic Base Information

May 10, 2012

Succesfully producing a slope analysis exhibit using LIDAR topographic base information with this version of Civil 3D? I have followed the instructions as best I can and have had no luck. I am using a trial version and this is a big factor in whether or not I will ultimately make the purchase.

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AutoCAD Civil 3D :: Slope Analysis Legend To Show Percent Of Range

Apr 16, 2009

I am working on creating a surface style, legend and surface settings to create Slope Analysis Maps. These maps show a surface with different colors of hatches in triangles of the surface that are within the specified ranges. I have 3 ranges, 0-10%, 10-20% and 20-100%. I have been able to do everything but include the percentage of the area of the range over the total area of the surface. I thought maybe an expression, but doesn't look like you can have expressions for table styles. Attached is a pdf that shows my legend and a surface with the style.

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AutoCAD Map 3D :: DWG For Slope Analysis?

Jan 5, 2012

If I only have sketchup terrain model which I could export to DWG.Am I able to bring that DWG into Autocad MAP 3D to do slope analysis?If not, how should I do? What kind of file type I need? Or I need more information other than a model to do slope analysis in Autocad MAP 3D?

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AutoCAD Civil 3D :: Profile Geometry Editor - Slope-Slope Intercept To Place PVI

Aug 20, 2012

Can you not perform a slope-slope intercept to place a PVI?  Essentially holding the sta and elev of the PVI's directly before and after the PVI of interest and changing the grade in and out so that the sta and elev of the PVI of interest are changed.

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AutoCAD Civil 3D :: How To Match Gutter Slope To Outside Lane Super Subassembly Slope

Mar 22, 2011

Can't figure out how to match gutter slope to outside lane super subassembly slope.  Have super eop targeting a feature line with elevations, but when i check section editor gutter slope doesn't match pavement slope.

Civil3D 2013
Windows 7, 64 bit
Intel i7 2600 @ 3.40Ghz
16 GB RAM
Nvidia Quadro 600

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AutoCAD Civil 3D :: Shoulder Subassembly That Varies Slope In Relation To Lane Superelevation Slope

Jan 22, 2013

i need a shoulder subassembly that varies slope in relation to the lane superelevation slope. i know that i can get a subassembly for the shoulder that will follow the alignment superelevation xml data but in my case i can't use it because we are just adding a shoulder to an existing road. we're not changing the superelevation of the existing road, just milling and overlaying and widening. right now i've created a profile of the outside edge of the shoulder that gives me the correct shoulder slope but whenever i change my centerline profile i have to redo the shoulder profiles which is a real time suck.

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AutoCAD Civil 3D :: Slope To Depth Of 10 Feet Than Change To 2:1 Slope

Aug 13, 2012

I am in the process of transitioning from land desktop to Civil 3D. I design roads in steep terrain and sometimes need to have my catch (daylight) slopes change. So my question is, how do I change a daylight slope at a specified depth? For example, from the shoulder of the road I want a 3:1 fill slope to a depth of 10 feet than change to a 2:1 slope until it catches the existing surface. Can this be built into a subassembly such that if the fill is less than 10 feet it will daylight correctly at a 3:1 and if the depth is greater than 10 feet then it carries the 3:1 for 10 vertical feet and then changes to the 2:1 until it daylights?

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AutoCAD Civil 3D :: Reverse Section Direction Without Changing Alignment Direction?

Jan 2, 2014

I have cut several sections at different points along a road alignment.  The sections are cut facing the same direction as the alignmnet.  Is there a way to reverse the section direction without changing the alignment direction?

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AutoCAD Civil 3D :: Slope Map Display

Jul 1, 2013

The undefined areas of a slope map now have a hatch to them and are plotting black. This map was created a month ago in 2012 without issues, upgraded to 2014 and now the undefined range has hatch! 

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AutoCAD Civil 3D :: Get The Slope At A Point (x And Y)?

Jan 2, 2012

I have a TIN Surface, and I want to get the slope at a point (know X and Y).

Working Civil 3d 2010 and API.NET

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AutoCAD Civil 3D :: Using Negative Cut Slope

Oct 30, 2012

I have a simple driveway corridor along a steep hillside.  For cut, I would like to have a negative slope away from the shoulder edge.  I have tried numerous approaches and all 'cut' reverts to positive.  I searched and found no clear answer.  It's such a short driveway, I can 'fake' it in, but I would like to calculate quantities. 

Using 2012 sp1, 64bit, windows 7

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AutoCad :: Text Suddenly Changes Direction And Reads In Opposite Direction When Line Bends

May 17, 2013

I have created a linetype with the text GAS OPTION in it. The line is continuous with a break around the text. In a straight line the linetype works fine (breaks around the text etc). However, when I use a polyline and spline the line for a curved line the text aligns with the direction of the line at the start, but when the line bends, the text suddenly changes direction and reads in the opposite direction. It looks like AutoCAD is trying to keep the text upright rather than following the direction of the line. When the text changes direction it also changes its insertion point and overlaps the continuous part of the line. I have 2013 AutoCAD.

Here is the string I used for the linetype.

*GAS_Option_LINE,Gas line ----GAS OPTION----GAS OPTION----GAS OPTION----
A,8,-15,["GAS OPTION",STANDARD,S=2.54,U=0.0,X=-2.35,Y=-1.27],-12

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AutoCAD Civil 3D :: River Analysis DWG

Jul 6, 2012

Am working in River Analysis dwg and go to save and get message "One or more objects cannot be saved to the specified format."

What's the deal?

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AutoCAD Civil 3D :: Can't Display More Than Two Slope Ranges

Jul 8, 2013

I've got a surface that displays contours correctly. When I go to Surface Properties-Analysis tab, I can  set an arbitrary number of ranges for contours, directions, elevations, slope arrows, etc, and they display correctly.

I can set an arbitrary number of ranges in the slope range box too, but when I click the Analyze button, Civil 3D 2014 hotfix 1 only displays two slope ranges: 0% to 2979736.0077% and 2979736.0077% to 99999900.0001%. (!)

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AutoCAD Civil 3D :: Auto Slope Patterns?

Aug 10, 2013

Can I automatically have my slope patterns introduced with a command like matchprop or something similar ?

I have 284 streets and it's getting ages to finish the slope patterns on every street. Civil Engineer / Infrastructure of metropolitan transports. URL....

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AutoCAD Civil 3D :: How To Round Off Top Of Graded Slope

Mar 21, 2013

I'm trying to match an existing slope design that has a soft rounded off top of slope.  The toe (green) is a feature line and I'm using a 1-1/2:1 slope to natural surface grading rule.  You can see the rounded contours in blue that I am trying to match.  

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AutoCAD Civil 3D :: Link Slope To Surface

Nov 7, 2012

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.

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AutoCAD Civil 3D :: Determine Elevations Along Slope

Dec 3, 2013

I need to project a surface/grading (or something of that nature) across my berm and have it intersect with the inside bank. This is better explained if you see the attached image. In the plan view you see 4 featurelines. Outside TOE, outside TOB, inside TOB then inside TOE. I need to project the outside TOE across the berm (shown in the section view) then create a new featureline where the line and inside slope of the berm intersect. Note that all the elevation shots vary as does the widths across the berm. What's the best way to do this?

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AutoCAD Civil 3D :: How To Calculate Average Slope

Feb 20, 2013

What formula Civil3D uses to calculate the average slope of a surface?

The formula I am using is S = I*L/A

S = Average Slope
I = Contour Invertval
L = Length of Contours (ft)
A = Area of parcel (sq. ft)

I just had to do four parcel calcs and the percentage I find using the formula is always 1-3% lower than the percentage Civil3D spits out. I can't find anything about how Civil3D arrives at that number, it just appears. I assume that Civil3D is more accurate but I can't give that number to a client without knowing how the program arrived there.

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AutoCAD Civil 3D :: PVI Profile On Corridor Slope

Oct 1, 2012

I created a profile view in order to create a corridor, I want the profile PVI stations to be on the same plane,

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AutoCAD Civil 3D :: Superelevations And Sub-base Slope

Jun 11, 2012

I need to have a subassembly for a superelevation where the lane and base slope to the left and the bottom of the sub-base will slope to the right. I was using the LanSuperelevationAOR subassembly, which worked fine with my superelevation when the lane, base and sub-base were all sloping the the left, now I need to edit the slope of the sub-base only to slope back to the right at a -2%.

Windows 7 x 64
8GB Ram
Intel Xeon CRU 4 Core @ 3.07GHz
Civil 3D 2012 .....

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AutoCAD Civil 3D :: Slope Symbols For 3d Polylines

Sep 20, 2013

I use slope symbols instead of contours to keep my maps less busy.  Unfortunately I can only change my cut style and fill style to slope symbols with grading by right clicking on the little diamond in the grading and selecting grading properties.

I have created a surface with 3d poly lines not by creating grading and got contours that way, How can I create the slope symbols in a surface.  I tried xploding them and then creating a block and using the measure tool on the 3d polylines but it doesn't do anything. 

Picture 01 is the contours

Picture 1 is the contours turned off and cut/fill styles turned to slope symbols.

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AutoCAD Civil 3D :: Slope Of Surface After Kriging

Apr 5, 2013

Please find the attached picture. It shows a surface with its data points. I extended the surface to the outer boarder shown by kriging. The slope of the surface that was added with the extension (past the data points) has an upward slope that was generated. I need the surface to stay level with the data points that are there.

How to avoid that added slope when extending a surface?

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AutoCAD Civil 3D :: Add Slope Markings On Corridors

Apr 18, 2012

Trying to add slope markings on my corridors, and the only way I can find is to do it in the Corridor properties > Slope markings, then click add slope pattern, which asks you to select featurelines top and bottom of slope.  Surely there is a way to simply switch on or off slope markings where in cut or fill?

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AutoCAD Civil 3D :: Super Elevation Max Slope At 2%?

Mar 22, 2013

I am using Civil 3d 2013 and I am trying to calculate the superelevation information in which the curve will max at 2%. Is there a way in which the superelevation can be calculated using the superelevation wizard in which a 2% SE is the max? So far it will only let me use the SE for 4% local roads and I have to edit it using the SE layout. 

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AutoCAD Civil 3D :: Daylight With Variable Slope

Nov 6, 2012

I wonder is it possible to have a daylight (or other function)  that can give a different slope for datum and for the top.  This would be useful for if you have different rules (e.g. because of geotech) with regard to temporary and permanent batter slopes.

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AutoCAD Civil 3D :: How To Label Ditch Slope

Mar 14, 2013

How do you label the foreslope and backslope of a section? For instance 3:1...

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