AutoCAD Civil 3D :: Get The Slope At A Point (x And Y)?
Jan 2, 2012I 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
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
Am I correct in assuming that if Surface Labels by One Point is chosen, the slope as shown is the maximum slope of the surface triangle where the point was chosen??
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
This seems like something that should be really easy but for the life of me I can't figure it out. I even started looking at using the Subassembly composer to create a custom SA but that seems like a ton of work so something that would seem to be a common problem.
I need to provide a v-ditch with 2:1 side slopes at the toe of a 2:1 fill slope. The flow line of the ditch should be 2 ft below the daylight point of the roadway pavement section.
My problem is that the conditional subassembly seems to evaluate the height of fill directly beneath the attachment point of the conditional SA (pavement section daylight point in my case – “Daylight_Sub” Point code). Instead I need it to evaluate the difference in elevation between the catch point of a 2:1 daylight fill slope and the conditional SA attachment point (Daylight_sub). If that difference is less than 2 feet, I need to provide the ditch, otherwise I can just use the daylight slope for the ditch foreslope and the existing surface for the backslope.
how to do this? Maybeits as easy as using a predefined daylight subassembly that I'm overlooking?
Here’s my current assembly attempt:
And the resulting behavior. It is solving the 2nd fill condition when I would like it to solve the 1st fill condition:
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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Civil3D 2013
Windows 7, 64 bit
Intel i7 2600 @ 3.40Ghz
16 GB RAM
Nvidia Quadro 600
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.
View 9 Replies View RelatedI 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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View 8 Replies View RelatedI 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
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%. (!)
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....
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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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.
I created a profile view in order to create a corridor, I want the profile PVI stations to be on the same plane,
View 1 Replies View RelatedI 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 .....
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.
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.
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?
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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View 9 Replies View RelatedI 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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View 7 Replies View RelatedHow do you label the foreslope and backslope of a section? For instance 3:1...
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Im attaching a image to show my problem.
How I can calculate my area for different slope regions?
View 7 Replies View RelatedIs it possible to create a Slope Stake Report for multiple baselines?. When I generate the report, it only creates a report for the first baseline of the corridor. All of my sample lines are in the same section group, so I'm wondering why it would not create all my sampled stations.
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Any proper way to insert the median and get it to connect properly.
Any way to label the slope stationing rather than horizontal stationing? This is common when doing long pipeline projects (40 miles) or more in very steep terrain. I am doing one now that is only 1 mile and the 2D verses 3D length is a difference of 100'. 40 miles that would mean it would be off 4000'. The client uses this stationing as a guide to know how much pipe they need. If you would do that horizontally that would be way off the mark.
I am using Civil 3D 2010? Maybe its included in 2012 or could that possibly be an option for future releases since it is a 3D software.
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