AutoCAD Civil 3D :: Query Point Cloud Boundary Then Add All Points Within Boundary
Nov 9, 2012
i need to know if there is any way to control the points in the point cloud.
1. either only import the point cloud in a polyline area i specify
2. add all the points within a boundary not limited to the pointclouddensity = 100, freaking default is 15 almost cost my job today. extremely stressed out right now.
i am talking about extreme lidar surveys. 1km 1km LAS/0.5m contours/xyz files times 355 of them. covers a 2km wide corridor. but i only need 100m wide after i define the road alignment. no need to have all the extra points.
right now i densify the heck out of it and end up like 5-12m points. decent but not good enough because the geotech is bitching about that accuracy is not good for some feasibility study. or is there any software i can do this besides civil 3d.
what i want can also do is automate the 'add points to surface" under point cloud and have the software do multiple boundaries without having me baby it over the night. right now every click is 5 minutes and adds like 400k to 1 million points. Civil 3D 2012
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Feb 13, 2013
I might be missing somehting completely, but I am reading with Civil 3D 2013 you should be able to clip a Point Cloud, but I am not seeing the clipping panel under the point cloud tab.
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Jun 22, 2012
Cannot get corridor surface boundary from daylight points. Is there another way so that I do not have to trace the outer limits?
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Oct 24, 2012
I used a 2d polyline to create a surface boundary for a surface created. The polyline is a closed loop. For the boundary type it is outer, unchecked Non-destructive breakline, and mid-ordinate distance = 1.
My problem is that when I do this I only get a small portion of the surface to show up within my surface boundary. If I don't have a surface boundary the entire drawing surface shows up no problem.
The purple polyline is my boundary and the light blue is the surface created within the boundary.
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Feb 21, 2013
I have a point cloud with 161 million points in it. This is basically fine and works well but I need to create equally high resolution surfaces from certain regions of the point cloud. No matter what size I choose my export shape, it will only create a surface from a ridiculously small 750,000 odd points, a 'feature' which has been documented on these forums before. I have POINTCLOUDDENSITY set to 100.
My question is, how can I build a surface from this high resolution point cloud data that has more than 750,000 odd points?
I'm thinking about mosaic'ing - ie. making several smaller surfaces over the required area and pasting them together.
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Mar 19, 2012
I have a point cloud dwg. Is there a way to increase the number of points displayed? The properties of the cloud say there is 14,000,000, but it only displays 34,000. Is there a way to increase the 34,000 number? See Image.
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Jan 7, 2013
I know that there is a limitation on the numbers of points added to a surface from a point cloud. But I'm curious how Civil 3D determines which points to exclude from the surface. Is there a special alorithm/criteria the software uses?
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Feb 23, 2013
I have survey data of the inside floor of a pond ( the pond has a flat floor ). The surface made from the survey data needs to extend to the outline of the pond instead of the outline of the survey points.
I tried the smooth surface method of kriging with a grid base and I sellected the outline of the pond for the output region and that worked somewhat but there are still gaps between the boarder and the surface.
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Nov 12, 2013
Is there a method to obtain the overall Site boundary? I have not found one, if there is, but it would sure come in handy when creating reports. We must always include the project Boundary as the first item in a report, so being able to add it to the existing reports would be a huge timesaver.
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Aug 14, 2013
I have alignments that go in and out of a surface boundary (this is because I have a surface that represents the bottom of pavement.) I want to show the surface profile with the gaps in the profile view (where there is no surface. However in the profile view the gaps are sometimes connected with a straight line instead of being blank.
How can I have a surface profile represent the bottom of pavement properly? (An alignment that is not fully withing the surface boundary.) I know I could add the profile multiple time with different start/end stations But, I don't want that, I want it to be dynamic, as the alignment will change.
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Apr 18, 2013
I would like to show the title boundary of our site on a profile in a way that is dynamic. Same idea than on cross sections, where you can create an alignment running along the title boundary and then show a block where the boundary lies on each cross section. I know I could project a cogo point where the alignment intersects the boundary.
This method is not perfect because, if the alignment changes and, therefore, the intersection point with the boundary changes too, the cogo point won't follow the alignment, staying at its original location. Hence, I'll have to update it manually. I tried using a feature line, but it seems I cannot show a marker only where it intersects the alignment.
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Aug 7, 2012
The odd shapes are outside the daylight line. They follow a straight-line around the daylight limits (see third attached file), apparently triangulating unwanted areas. I've used a corridor shrink wrap for the surface boundary.
What is the best bet? I'd rather not draw a polygon along the daylight line and use it as a surface boundary, since it could change. Setting a max triangle length in the surface does not seem to provide a desired result.
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Dec 13, 2012
I've attached a screenshot of the issue I'm dealing with. I have a closed polyline and when I first hatch the area it appears to be correct, but then I'll go do another command and then the hatch seems to extend beyond the boundaries of the polyline.
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May 14, 2012
I have problems applying an Outer boundary to eliminate a small area within a big surface (and a few Hide boundaries within that Outer boundary): Civil 3D somehow creates extra triangles within my surface (that don't really make sense to me). I am applying the boundaries as non-destructive boundaries as I need the surface to extend all the way to my applied boundaries. The surface needs to be untouched (except applying a few Outer and Hide boundaries) as it is design data.
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May 22, 2012
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?
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Jun 18, 2012
I need to adjust a surface boundary. I need to remove a corrupted area in my surface. I do not need it. Is there any way to drag a boundary so I can exclude some of my contour area? Is there a command under settings on tool space that I may have overlooked? This surface was furnished by a client so I do not want to rebuild or alter except to exclude some contours.
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Aug 17, 2013
what is the trick for holding triangulation within a surface boundary? I recall a setting somewhere but can't seem to find it... attached graphic, would like to hold the surface triangulation within the arcs which are in the surface definition as boundary
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Mar 7, 2012
I like the 'Extract" feature for surfaces, where I get get the contours or boundary of a surface in PL form without having to explode the surface. I have not figured out how I can do that same thing for grading objects. So far I have been exploding grading objects and then remaking them. Seems cumbersome.
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Feb 1, 2013
I need to convert my surface boundary to a polyline so I can use it to clip another surface. Is there a simpler way than tracing it with the polyline command?
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May 28, 2013
I have a surface that I created by joining to surfaces, and now I want to reduce my boundary, how can I edit it?
windows 7, intel I7, 8 MB RAM, civil3d 2013.
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Dec 5, 2012
I've set the corridor's surfaces to use the corridor boundariy & the datum's overhang correction to top links & bottom links, but for some reason it doesn't respect the corridor's boundary.
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May 21, 2013
I use Civil 3D 2011. I have created a surface from a point group. Now i want to extend the surface to an outer boundary. To do so, i do the following steps:
- Select the surface and Extract the border object.
- Create feature line from the extracted border polyline
- offset this feature line (featureoffset) to outside specifying a offset distance and specifying the elevation difference as 0.
- Add this offseted new featureline as the boundary in the definition of the surface
- Rebuild the surface
Now when i am selecting the surface, I see that the featureline is not a part of the surface and I do not find the contours and the TIN extending to this new boundary. Also I still find the old border in the surface.
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Mar 4, 2013
I am working on a complex industrial site. And I would like a constant grade of 3.00% from my road intersections to the edge of curves. I know if I used a corridor, I'd be able to tell the grading to project ot the edge of the road/curve.
I'm just wondering if I can tell a grading object to project to a polyline or feature line along a intersection curve? There are many reasons as to why I'm not using corridors for this project, but I don't want to get into that.
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Jan 2, 2013
I've been putting up with this problem for a while. I have a certified 3D device with a driver version that is certified (Quadro 4000) but the active viewport boundary highlight is out of place. The white lines in this image are my viewport boundary highlight which is out of position. This only seems to happen when I turn off the viewport layer. If the viewport layer is on the highlight appears as expected.
Windows 7 Professional 64-bit - Service Pack 1
Intel﴾R﴿ Core﴾TM﴿ i7-3820 CPU 3.60GHz; 16 GB DDR3 Dual Channel RAM
nVidia Quadro 4000; AutoCAD Civil 3D 2013, sp1
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May 1, 2012
I always get the message after I make a closed boundary polygon, and I know it's a closed boundary, but I know how to fix it. It just bugs me sometimes when the message pops up when I add it as a boundary under the definition of a surface.
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Jul 12, 2012
I'm creating a corridor to widen a road on the left and right sides. I am using OverlayWidenMatchSlope, with various other subassemblies. In places it daylights, in places there's a cut wall modeled from generic links. I am trying to create a good boundary for the corridor surfaces but I'm puzzled by one thing. The OWMS subassembly has a P2 code, but the corridor will not generate a featureline connecting the P2 codes..
I will try adding another baseline, and a new subassembly that will just use a generic link to target the sawcut line (the insert point for OWMS). That should give me a featureline I can use for a surface boundary. Is there a way to generate that featureline from the inside edge (the insert point) of the OWMS subassembly?
Win 7 64-bit, Intel i7 920,12 GB
Win 7E 64-bit, Intel i7, 12 GB
C3D 2012
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Sep 17, 2013
I have a known outer boundary for my depo for excess soil. I know how much (volume wise) is going in to the depo. I know that the slope is 1:2.
I do not know where the upper boundary (top of the depo) of the depo is. That's what I would like to find out.
I know that I can create a upper boundary with a feature line and then use the grading and volume tool in order to find out at what height the upper boundary is placed. But then the outer boundary is either too small or exceeds the known boundary.
What is the easiest way of finding out where the upper boundary is? I am thinking about drawing a feature line around the known boundary on top of the EG surface and then using stepped offset. Then I can check out the volume.
But is it possible to do this automatically instead of manually?
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Jul 3, 2013
When I'm creating a material list, every time I select two surfaces and one is smaller than the other, a vertical boundary is created rather than a boundary with the shape of exactly the space between those two surfaces.
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Mar 13, 2013
I try freezing my proposed storm structures inside Viewport for Existing Conditions sheet. My proposed DI's freeze because they use a block (in structure style). My proposed headwalls use the outer part boundary from catalog. BUT both DI and Headwall Style Component Layers are set to C-STRM-STRC.
In the pic for Existing Conditions Layout, you see a white headwall boundary. In proposed layout, you see a magenta headwall boundary. It's using the Object Layer and not the component layers for the headwall.
I didn't see another way to logically set up Object Layers for Pipes and Structures that contain Existing and Proposed Water, Storm, and Sanitary. My Object Layers have Pipes set to C-UTIL-PIPE and Structures set to C-UTIL-STRC, BUT the Component Layers inside the style are specific. Example: Existing Storm Structures and Pipes have layers such as V-STRM-PIPE and V-STRM-STRC. Proposed Storm would have Component Layers such as C-STRM-PIPE and C-STRM-STRC. The Object Layer for both existing and proposed use C-UTIL-PIPE and C-UTIL-STRC.
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Mar 19, 2012
I've got a series of cross sections that show an existing and proposed scenario and I need to show the location of the site boundary on the (multiple) sections.
I tried making a feature line from the site boundary but all the feature lines get projected - how can I just get the site boundary to be shown?
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Nov 14, 2013
How I subivide and get the interior lot lines dito not show over the outter lot? I don't do a lot of parcel work just trying to make it easy for the others
Civil 3D 2012 & 2013
HP Z210 Workstation
Intel Xeon CPU E31240 @ 3.30 Hz
12 GB Ram
64 Bit Win7 OS
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