AutoCAD Civil 3D :: Modeling Laying Down Sheets Of Textile Onto Surface
Dec 1, 2013
I have some geotextile sheets of specific dimensions (that's 45mx5m) and a surface (not a regular one) with grades ranging from 3.5% up to 34%.I would like to "fit" those sheets on the surface (which should overlap one another by .30m (see attached image)) but not project them, (that's why I don't believe "drape" is the proper word).
Meaning that since the 45m dimension is facing up/down slope, the length should be less in projection (see attached image) and that should be calculated automatically since the surface is a very irregular on (not like the attached dwg which is included as an example).
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Jul 3, 2005
I was wondering whether it is possible and quite easy to create a necklace laying down on a white surface.
It concerns a Yin-Yang necklace and I would like to create it like it is laying down on a white table or so (so a kinda inclined view). And you should only see it laying down because of the shadow or so.
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Mar 13, 2012
I have 2 roads crossing, and I have created the 2 corridors, and an intersection object created. I split the 2 corridor regions and put the intersection in, and then closed back in the regions to the start of the intersection object (region). Now - how do I make that all one corridor object that reacts to either of my profiles, and is only one corridor surface? - the corridor surface ignores my region boundaries Or at least 3 objects that interact with each other properly. Image 1 highlights the start/end of the corridor regions, and image 2 shows how the surfaces look - why doesn't the corridor surface start and end where the regions do?
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Jul 18, 2013
had my cross sections ready to go all day, had to add points to my surface layer is all i did, now when i cut the sections they are all laying on top of one another.
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Sep 30, 2013
I have a line or a pline segment and i want to start a line from a point laying there and go perpendicular outwards. Is there a way to do it with tracking?
Yes, i saw the command draw line at an angle but i find it a little bit complicated for a simple task like that. I am sure autodesk have a simplest solution about that.
If i am already at the draw line mode and i can easy catch the tracking perpendicular to previous segment but if i want to start from another line and go perpendicular i cannot make the tracking work.
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Jun 14, 2012
shouldn't sheets marked as "exclude from count" not be counted?
I tried this in both 2013 and 2012 to see if maybe AutoDesk broke it, but it doesn't work in either one. This is easily reproducible for me, a file shouldn't be necessary. Just open up (or create) a multi sheet drawing. Go to edit sheet on one or two of them and check the "exclude form count" box. Now create a new iLogic rule and put the following line into it:
MsgBox("This is the number of sheets in the drawing: " & ThisDoc.Document.Sheets.Count, VBOkOnly, "Number of Sheets")
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Dec 2, 2011
I often have to do storm pond surfaces that (for the purposes of planning) are flat on the bottom. These surfaces are created from a combination of survey data and grading groups and the tin of these surfaces is perfectably acceptable. However, when contours are shown, the flat bottom is shown with contours jig-jagging all over the place.
The attached image shows a comparison of the same pond. The top was created with survey data and grading groups; the bottom was created using contour data only. The generated surface on the top shows the bottom contour going in different directions and has parts where the an expected contour is missing.
How to correct/manipulate the surface to show a proper flat surface?
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Oct 22, 2012
Has instances where you set your tolerance for the maximum triangle lenth to say 50m to reduce the amount of triangles along the edge that run at long distances. When I do this I end up with multiple surface holes and I'm not sure why as there are points in the area.
I thought well maybe it's because i should've reduced my max triangles first then added breaklines. Would this matter? I also thought I could add a line to the surface to fix the holes vs. deleting surface lines along the entire edge of a surface for many many miles.
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Nov 14, 2012
I am trying to add points into a surface. I have done this before without any problems, but now I am having issues.
When I ID points which makes up the surface it gives me the correct Z level e.g. 24.5m, however when I hover over the surface it shows me the surface name and a different z level e.g. 0.65m. What is the reason for this difference in z levels? I think this may be causing the issue I am having when I add new points.
I select the surface and use the 'edit surface command' in the ribbon, choosing add point.
When I add a point at the level I require(23.89m), it puts it in a lot higher than the surrounding area, so I tried to put the point in to the lower z levels (0.4m) it puts it in a lot lower!
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Dec 10, 2012
My goal is coming up with the volume bounded by the design surface and the existing surface. I don't have the design surface modeled yet.
Do i need to create alignment offsets?. Alignment 1 profile view is also attached. Then Alignment2.
What about starting with alignment1 profile view? Since I have created a polyline as the design profile ?
how do I shrink labels? Where is it in the settings ; the Align folder had been check.
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Oct 2, 2012
I am issues with DEM files that I am downloading from the USGS website.I download 24k, elevation for the area I need. I then choose staged 1 second, add a surface to a blank drawing, then upload the DEM files to the surface.
The surface imports correcty, but when I try to import points taken by a surveyor on the same drawing, they plot incorrectly.The DEM surface and the points from the surveyor do not correspond. Also, the DEM surface is in meters, not feet. I have tried changing drawing settings, datum types, coordinate types, etc.
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Apr 4, 2012
Is there any way to change the referenced surface on a Surface Elevation Label. I can see the surface in the properties but cannot change it.
C3D 2011
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Jul 29, 2013
I have a project involving 3 programs. I am creating a planned development in 3d to be 3d printed when finished. The project is a 5 acre tract containing 8 buildings. I have built the surface in C3D and each building in Revit. The buildings are not in the same Revit file. For my solid work, I will bring the files over into 3ds Max Design to section into smaller quadrants to build in the 3d printer.
The questions:
Would it be better to import the surface into Revit to merge surface and buildings together?
Would it be better to import the buildings into C3D to merge entities?
Would it be better to bring those entities into 3ds Max and then merge them into one? Will 3ds Max Design allow me to insert entities accurately in the environment?
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Sep 15, 2013
I need to create a sub-set surface from my main surface. not sure what the vernacular is for a "subset surface" in c3d but i do have a feature line that bouinds the desired area, but that is as far as i can solve.
i did try creating a new surface - pasted the main surface in the edit definition, then deleted triangles until the boundary alighned wiht my featureline. This seemed to work, but when i view the properties of the smaller subset suface, it shows a mimum and maximum elevation that is incorrect.
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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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Mar 26, 2012
all of a sudden whenever I run audit on my corridor file the surface definition becomes a snapshot. To add to the drama, the corridor surface will not paste into an empty surface. Why?
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Jun 4, 2013
I am relatively new to the 3D modeling world and would like some tips and tricks on how to quickly model a staircase. I have posted a 3D pic of a particular one, that I done recently.
I would all-sow like to know how to model the bottom part of the stairs so that is is a continuous surface. Having trouble with modeling a curved surface and making it part of a solid...
steps.jpg
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Feb 13, 2013
How to write an algorithm for triangulation in surface modelling ( using Delaunay's method) ?.
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Feb 7, 2013
My problem added with pic ... I want to make volume calculate for sample road project. When I try to compute materials I cant use Corridor surface for DATUM... There is only target surface on option..
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Mar 6, 2012
I am trying to visualize a road project. The problems is, whenever the corridor surface goes below the EG surface (when the road is in cut) the EG surface is the only visible surface.
I sort of need to subtract the corridor surface from the EG surface, or merge the both surfaces into one.
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Mar 5, 2013
I'm having an issue when trying to create the profile sheets on my first Civil 3D project. I'm supposed to use a horizontal scale of 1/2000 and a vertical scale of 1/400. When producing the sheets, I obtain 1/500 H and 1/100 V.
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Mar 18, 2013
I created plan and profile sheets using the P&P tools. Then I created a new drawing and attached (XREF) the dwg with the viewframes in it. Then I set the viewframe layer to Plot instead of non-plot and I changed the color so that it would be heavy (we use CTB).
Then when I went to my PSPACE layout to try and plot, the viewframes are NOT there. The layer IS turned on, because there's a PLINE that I drew on that layer and it DOES show up. When in modelspace, the viewframes are there and the color did change as expected.
So why do they disappear when I'm on the layout tab?
The goal is to create a plottable sheet that identifies where each sheet is (I want to point to each viewframe and lable them C-101, C-102 etc).
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Dec 10, 2013
I am creating P&P sheets for my road. I created view frames, and when I got to create sheets, I pick "all layouts in new drawing". I go to open the new drawing up, but all that shows up/tranfers is the profile and alignment, nothing else comes over ( proposed linework, existing linework, etc.)??????
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May 3, 2013
I was wondering if there is an easy way to trim one surface to another. Right now, I have two slopes (3:1) that are perpendicular to each other. They meet at a corner and I have extended them past each other so that I could see the intersecting edge. Now I would like to trim them to each other like you would a polyline etc... but I am not sure how to do this.
If I select surf trim, it tells me they are the wrong object type, but they are tin surfaces?
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Mar 13, 2012
I am creating plan sheets and using the sheet creation tool. The plan sheets I am looking to make have stacked view, similar to a plan and profile sheet, only they have the horizontal alignment in both views.
I have a template set up with two viewports, but when I try to create the sheets it puts the same view frame in both of the viewports. Is there any way to set this template up so that I can have, lets say, STA 100+00 - 110+00 in the top viewport and then STA 110+00 - 120+00 in the bottom viewport. I understand that I can move the viewports once they are created, but I would rather have that done automatically. I am not sure if what I want done is possible with Civil 3D.
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Jun 17, 2013
So I had to jump into the middle of a project. The Viewframes were already created but when I go to the plan and profile sheets for the viewframes the profile is not showing and I'm not sure how to choose the correct profile and display it in the corresponding plan and profile sheet.
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Mar 29, 2012
I have created section sheets in C3D 2012. My sections look fine in model space and my template comes in in paper space with my template and the proper viewport (viewport scale is 1:200). My annotation scale in model space is 1:250 and everything looks fine. My problem is, in paper space, the sections themselves looks fine but the annotation is way out to lunch (see attachment). I've tried playing with the scales but can't seem to find a solution.
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Dec 17, 2013
I am using AutoCAD Civil 3d 2012. I have succesfully created a View Frame Group (VFG) from an alignment and then created Plan Profile sheets from that View Frame group. I did create the sheets in a separate file from the View Frame group (that is an option when you create the sheets). It appears that if I change a View Frame using the grips, the corresponding sheet viewport doesn't change based on the edits to the view frame. I must manually update the sheet plan viewport to align with the edited location of the view frame. Is there a way AutoCAD will do this automatically or does it just not do that? Do I have to create the whole sheet set again or can I just recreate that one sheet? I don't want to do that since create the sheet will create a new profile view.
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Apr 26, 2012
On the side of sheets created with the Create Sheets command there is a grey area that masks out the referenced files at the match line. Is there a way to reproduce this without having View Frames and using the Create Sheets? In other words, I a manually creating these plan sheets and I wonder if there is a better way of masking than using wipeout on the sheet tabs.
Windows 7 x 64
Nvidia GeForce GTS 450
8 GB Ram
Intel Core i5-2310 @ 2.90 GHz
v. F.107.0.0 AutoCAD Civil 3D 2012 SP1
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Dec 8, 2012
After I create cross section sheets (Output---> generate cross section), the generated sections do not fit in the sheet exactly. In fact, the generated layouts do not cover the sections correctly, and some sections fall outside the created sheet.
It should be noted that I use the "ISO A1 Section 1 to 500" layout which is installed on the default pass of C3D (template folder), and the scale of "view section style" is set to 1/500. I tried the scale of the drawing (toolspace window---> setting tab---> rigth click on the name of drawing and click edit drawing setting) with 1/500, however the problem was not solved.
Another important issue is that the section views in the "Model space" are shown correctly, but my problem is in the layout space after generating cross sections.
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Mar 15, 2013
I am working in Civil 3d 2012 and creating multiple view cross sections. I have my sheet template created and when I create the cross sections, it pulls them to the top corner of the sheet, off the grid. I can not figure out where the setting is to adjust the offset on the sheet.
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