AutoCAD Civil 3D :: Creating Surface From Corridor
Jul 11, 2013
I am trying to create a surface from a corridor. I have a sub-assembly attached, which I believe is working correctly. I managed to create the empty surface and when I try to add surface data nothing seems to happen. I keep changing the specified code to Base which is my finished gravel structure and hit the + but again nothing seems to happen.
Ultimately I am trying to determine a volume between my corridor and original topo.
My corridor surface is not matching my corridor top links. see attachments. this is affecting my volumes!
The section-plan(surface red).png is showing the section editor and the plan view. the red highlighted line in section is the corridor surface and as you can see in plan view the surface is incorrect and wiggly.
The pdf is all my sections with the red linework being the corridor surface.
I am having some issues with my corridor. It is for a 1.5 mile two lane section of highway. When I created the corridor, I used 15 assemblies. Now, when I try to create a corridor surface, I have issues. The file crashes when I try to load the surface.
I have one corridor with several baselines. I have asked it to generate a corridor surface but it has left out several baselines from the surface. I have ruled out assemblies. I am not sure what is going on. I am also unable to get feature lines from this portion of corridor as well. The corridor builds just fine and I can see what the daylight lines are etc. What's going on. Yes I have audited the drawing.
After you go thru and setup all of the links and feature lines that you want to use to create a corridor surface, is there any way to save that particular setup to be used on other corridors? That way you would not have to select all of them again and again, every time that you wanted to create, say a datum surface.
When I create a corridor surface I usually create a suface boundary automatically by daylight.Half the time this works fine, half the time it doesn't work at all. If I view the corridor in 3d view it looks fine.
I tried to create a shrinkwrap polyline to use as a boundary but when I picked the corridor in the shrinkwrap command
it locked up my computer. These are just simple corridors with no intersections. Why the automatic boundary only works intermitently? Is there a better/easier way to create the surface boundary?
I created a surface corridor, called STAGE 1, that I would like to target with a second corridor, STAGE 2. In a new file, I data referenced in STAGE 1 surface. It is showing up as an option for me to use as a target in my STAGE 2 corridor properties. Once I look at my sections it shows there is nothing targeted on that side.
I've created a corridor with kerbline widths targeting featurelines. I've created the corridor at 1m centres and have added a number of individual points to ensure it properly picks up all of the geometry of the target featurelines. However, the surface that has been created has numerous holes in it along one side and I can't understand why.
I have been banging my head against a wall for a while now trying to get this corridor surface to form properly. It wont seem to triangulate properly from where I have copied the intersection into the East-West corridor.
I have had this issue at least 3 times and twice on the same drawing. I create a surface from corridor and add several polylines and feature line as well as a boundary to the surface. Randomly it will lose all definition (breaklines and boundary) and i will have to "select similar" (and hope I get everything) and add all of my definition back.
It seems to only occur on large files and when my frequency is tight on curve and vertical curves.
I built a corridor, then corridor surface. Then I changed the corridor onto a different profile. I noticed that the contours at the end were going crazy: the new profile ended before the corridor and everything was going down to zero elevation. So I went to edit my corridor region. I enter the required station, and my contours disappear.
Observations so far:
If I set the end of the corridor region to 2+377.91 to 2+384.54 inclusive, the contours on the surface disappear. The triangles and boundary still display, and the surface gives a Z reading when I hover the mouse over it. If I set the region end to something above 2+384.54 or something below 2+377.91 the contours reappear.
My profile ends at 2+383.00, and I would like the corridor and the surface to end there too!
On my corridor I am using Link Slope to Surface, using a 3:1 slope. But it is giving me a 3:1 slope radial to the corridor - what I really need is a 3:1 slope between the contours themselves. On the inside of a tight curve, this makes a big difference. See the attached screenshot. Is there a workaround for this?
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?
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.
I have created a new assembly that uses a HMA dike rather than your typical curb but my surface always begins at the top of the HMA pavement rather than the top of the curb subassembly. See Picture. Where's the setting to fix this (is it a daylight setting) or it is a bigger problem in that I didn't create the subassembly or assembly correct to begin with?
I've got a corridor which builds a surface which then is integrated into my overall surface. Until today I have been using a basic assembly which has worked fine, however today I began splitting regions where we have varying sideslopes etc. Once I re-associated the new regions with their corresponding assemblies, my entire surface went haywire, and now seems to be ignoring several other corridors / feature lines / other grading features I have.
I have a corridor that uses the Urban Sidewalk subassembly along the streets. During my rough design phase I set the outside boulevard widths to 2.00, and create a corridor surface using the Top Links as breaklines. I then do my lot grading, using that surface as a surface pasted into my FG surface. All of my side yard swales go up to the edge of the corridor's boulevard, with the elevation set 0.20 below the corridor surface. Once all of the design is done, I go back to the corridor and change the boulevard width to 0, thus forcing those side yard swales to now go up to the back of walk.this creates a small depression where we place small drain inlets.
Herein lies my problem, when I change the boulevard width from 2 to 0, the corridor surface never changes to reflect the 0' width. It's as if the break lines that I told the surface to use from the Top links are holding fast. The ONLY way I have been able to get the surface modeled correctly is to completely delete the corridor surface and create a new one and recreate the boundary, which I then need to re-paste and move to the top of the Edits in my FG surface. Just deleting and readding the Top Links from the corridor surface definition does not solve this.
the corridor-created breaklines do not get revised when the corridor changes, and cannot be edited/deleted by the user. Perhaps I am doing, or not doing, something that is forcing these breaklines to persist..
I do a lot of visualization work I need a corridor top surface split by material FAST. before I used Corridor Solids but I don't have the extension in 2013. So I export to CivilView, so far so good, then attempt to roundtrip the mesh back in Civil3D and that is where things fall apart.
Export to DWG is not split by material
Export to 3DS results in a blank screen
Export to FBX comes in missing large chunks of mesh out of scale and in the wrong location
I am trying desperately to create a corridor in C3D 2013.
I have the requisite Alignment, Profile and Assembly, yet when I create the corridor, either nothing appears, or it creates the corridor at incorrect elevations. I have the proper elevations in my alignment.
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.
My company had always used LDD until we were mandated to switch, our first project in Civil 3D is in the works. So far we have gotten through the beginning stages (alignments, profile, corridor, assemblies) but we are having a major issue with where to go from there. Right now I am trying to complete the design line work on the plan (wheelchair ramps, driveways transitions and signage) As of now I cannot get anything to line up easily with the corridor. I have been able to snap to the corridor so I can create a line at that exact spot to be correct, but then when I offset it will not change the elevation, I tried doing feature line and projecting the feature lines to the surface and some of it works but it becomes very buggy. My transition lines don't transition and some other lines I would expect to be at the same elevation have major grade changes. How to create the luinework at the correct elevation and with correct transisions along your corridor and surface?