AutoCad 3D :: Creating Surface / Region Or 3D Object Using Non-coplanar Points

Aug 6, 2013

How to go about creating a surface, region or 3D object using non-coplanar points? I'm drawing a few different 3D models for an artist friend of mine to use in her proposal on a local public art project.

However for this version I am bottlenecking on how to create these regions. I have vertical(ish) beams of varying height twisting in different directions with sheets of alternating metals welded in-between, the bottoms line up straight with the tops following an S curve but with the twisting geometry the top two endpoints for each will always be in separate planes.


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AutoCAD Civil 3D :: Creating A Surface From Points?

Jul 30, 2013

I have a grid survey of points and I've entered these points into Civil 3D.  Now what I want to do is use these points to create a surface so that I can create a slope analysis of the surveyed area.  My problem is that I can't get the points into a point group.  

I have a generic grid (15 x 15) of points set up and I've only used a portion of them (defined by the dimensions of the site).  So I want to create a surface that includes all of the points that aren't set at an elevation of 0.  

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AutoCAD Civil 3D :: Surface Creating Points That Do Not Exist

Jan 10, 2014

I am building a surface and started looking at the triangles and found that some are going to non-existant points. I have unfrozen, checked, etc. all of my points to make sure they are not in the drawing. 

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AutoCAD Civil 3D :: Creating Surface From Existing Points?

Jun 11, 2013

I have been given a survey on AutoCAD which was orginally 2D with the levels written in text next to it. I changed each point (690) to include the level in the Z-direction. I am trying to calculate volumes of topsoil removal and then cut anf fill volumes. 

So I opened up Civil3D in metric template and imported my drawing as I have not been given a ddata file with the co-ordinates. Unfortunately I am having trouble creating a surface between the existing points. 

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AutoCAD Civil 3D :: Creating A Surface From Existing Points?

Jan 16, 2013

I am having some trouble creating a TIN from a point layer in Civil 3D 2011. Would the best course of action be to extract the points from the drawing and creating a surface from there, or is there a way to create the TIN around the existing points in Model space?

I'm much better versed in AutoCAD, but excited about furthering my understanding with Civil3D.

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AutoCAD Civil 3D :: Creating A Surface By Manually Selecting Points

May 21, 2012

Is there a way to create a surface by manually selecting the points instead of creating a point group?  I survey stockpiles for a local construction company and calculate volumes for them. 

There may be 50 piles on one site and it would be a lot easier to create a surface by selecting the points manually instead of creating so many point groups.

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Maya Modeling :: Creating Object At Points?

Aug 24, 2011

Is there a way to select either vertices on a polygon or points on a curve and create an object at those points?

The snapping of objects to curve points isn't very accurate, so if possible, the above would greatly speed up my workflow.

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AutoCAD .NET :: How To Get Points Of A Region

May 10, 2011

how to get the points of a region using c#. ?

We have irregular shaped regions (and meshes) that we are trying to map for duplication. I've seen the code that gets the mass properties but cant figure out how to expand that down to the individual points/coordinates that make up the border of the region/meshes.

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AutoCAD Civil 3D :: Large Surface - Converting Points To Cogo Points

Mar 5, 2013

I have a large surface (over 1.5 million points and 20 000hectares)

I need to get a point file .csv from the TIN to be able to use it in another program.

-so i've extracted the points from my surface, but they are Autocad points.

-next step is to convert them to civil 3d points.

-I can not select them all when converting them or my computer crashes.

-so i select about 25 000 at a time, the converting takes roughly 10 minutes.

and i have over 1.5 million points to do.

how can i speed this up.

will more ram useful?

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AutoCAD Civil 3D :: How To Measure Area Of A Region - Defined On TIN Surface

Dec 6, 2013

I’d like to ask how I can measure the area of a region, defined on a TIN surface. ( i.e. the area of the bounded topographic terrain )

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AutoCAD Civil 3D :: Corridor Region Partitioning Disrupting Surface

Jul 5, 2012

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.  

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AutoCad 3D :: Unable To Subtract A Cylinder From Wedge And Region / Surface

May 31, 2012

I have an assignment. I've done all the work until i reached the end of it which is adding 2 cylinders to a weird looking object.

I'm trying to put the cylinder which shares a space between a wedge and a region but I'm unable to subtract it.

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AutoCAD Inventor :: Curved Surface - How To Increase Volume Of Surface At Certain Points Only

Apr 10, 2013

how I can add more volume to curved object surface? Say for example I have a plastic cup.You can think of this as cylinder object ,which was the shelled out using the shell tool and then had its base sealed.

Now at certain parts, I would like to increase the thickness and then blend it the rest of the surface(may be chamfer its edges) .

At certain parts on curved surface I would like to add an extra mm, I think if the surface was flat I would just sketch the shape, then extrude it by few mm and smooth the edges by doing a chamfer

But how can this be done on surface that is curved? Or multi curved for edges?

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AutoCad 2D :: Overlapping Objects When Creating A Region

May 14, 2013

I created a square and make it as a region. I just realize that they are consist of two kind of overlapping objects.

One is four lines that formed a square and another is the formed square region.

How do I switch the mode back to the AutoCAD classis, which when I create a region, then there only available one object, that is, the formed region.

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AutoCAD Civil 3D :: Creating Subset Surface From Main Surface

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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AutoCAD Map 3D :: Creating New Layout And Zooming To Correct Region In View Port - Objects Vanish

Aug 28, 2012

We have a map of our primary lines in an ESRI .shp file, that superimposes nicely on our other shape files, for shoreline and rivers and everything else, that works fine. As part of some project planning I'm doing, I'm making a series of layouts, each taking a snapshot of an area, with a revision cloud around the lines we're planning to replace. 

I loaded the map up this morning and everything was as I saved it, but as I was creating a new layout and zooming to the correct region in my view port, every single revision cloud I drew disappeared. As did all the annotations and other labels I'd made - absolutely everything that isn't from a database just up and vanished. 

I've turned off all the database links, there's nothing covering them up, I had none of them selected and used no delete commands, all I did was create a new layout via copy and adjust the viewport on it, they're just gone.

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AutoCad 3D :: How To Put Planar Surface To Solid Object Which Surface Is Curved Like Cylinder

Sep 2, 2013

I would like to know how can put planar surface to solid object which surface is curved like cylinder for example. When start draw from first point rectangle of planar surface follow x cordinate not that solid object. How to do that simply?

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AutoCAD Architecture :: White Space Forms Around Text Object When Apply Hatch Or Color Region

Aug 8, 2012

In Autocad Arch 2013, is there some parameter or option that will turn off the default behavior of dropping out part of the hatch or color, around a peice of text?  In other words I don't what the white space that forms around a text object when I apply a hatch or color region.

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AutoCAD 2010 :: Placing 3D Object Raised On Surface Of Another 3D Object

May 2, 2012

I've already started using the AutoCad 3D.

how to put a 3D object on top of the another 3D object in autocad"! E.g.,I want to put a 3d object of one leaf (raised 1") on top of the vase, so that the edges of the leaf are placed completely on the surface of the vase.

I extruded the leaf 1" first, then tried to copy it on a solid cylinder of a vase, but it didn't work!!! It seems to be simple, maybe not!

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AutoCad :: Lines Are Not Coplanar?

Oct 21, 2011

I am getting the lines are not coplanar when working off of a surveyor's drawings which is testing my patience. I am using LT so I do not believe I have access to LISP. How to use the FLATTEN command which must not be a function for LT because it is unrecognized.

Do I have options to flatten it?

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AutoCAD Civil 3D :: Cannot Remove Points From Surface

Mar 29, 2013

I have an "existing" surface built. But there has been some construction since my company surveyed the site. So, my surveyor went out and got the new points in the area of the new construction. I am trying to remodel the "existing" surface without rebuilding the entire surface. I have removed the old (demoed) points from the point group used to define the surface. But, the points are not being removed from the surface.

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AutoCAD Civil 3D :: Extracting Points From A Surface

May 31, 2013

I built my surface by importing points directly, ie, not through the ribbon, so i have no points listed in prospector.  i have been editing the points (mostly deleting errant survey points) and would like to export the final data set.  The only step i found, was to show points in surface style, and then Extract Objects (of which i selected Points).

This seems to have no placed all the points into my DWG, but HOW do I export this files into a single text file??

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AutoCAD Civil 3D :: Surface On Nearly Aligned Points

Sep 12, 2013

I have alignement of wall or embankment. I have existing ground including this corridor river. I have also CSV file with points (x,y,z). On my sketch there is drawn. Points present FDL (flow defence level) maximum level of river in case of huge rain or other things. These are almost aligned. I need to transform it (project) into alignment. I have to create profile of EG, FDL (based on this point) and then create new profile of height of wall or bank. What is the best solution for projecting this points. I tried with grading (distance and grade0%) I tried then with offsetting this feature line based on points and used it as breaklines. Created surface had holes.Even real is worst because alignment is perpendicular in same places to river.

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AutoCAD Civil 3D :: Adding Points To A Surface?

Apr 24, 2013

I have created a surface with a point group.  I have a few points on the edge of my surface that need to be added to the surface.  I can add them to the point group, but when I updated my surface nothing happens.  The triangles don't extend to my newly added points and my profile of the area doesn't show a surface where these new points should be. the new points I want to add have the same properties as the other points in the point group, they are cogo points.  

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AutoCAD Civil 3D :: Polylines Are Non-coplanar

Mar 12, 2013

We just upgraded to 2013, and one computer is having a weird issue.  There is nothing in the drawing.  He draws two polylines.  When he goes to fillet them, it says they are non-coplanar.  The properties palette says both polylines are elevation 0.  why this is happening and how I can fix it?

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AutoCad 2D :: Lines Are Non Coplanar - Z Coordinate Is Not 0

Feb 10, 2008

I've been having a drawing problem at work lately on Autocad 2007. Some lines I draw cannot be filled so I have to trim them instead. The reason why is that these lines are not coplanar. I've also noticed that the Z coordinate is not 0 and have checked on the 3d View that lines are awfully not in the same plan. Does it have to do with the X-line?

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AutoCAD Civil 3D :: Volume Surface Width Points

Apr 18, 2013

What I have is a tin volume surface. I am asked to label the points with the thickness of the volume surface.So where there was survey data on the top layer I need to have the width of the surface at those same points.

Any commands that can make this possible?

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AutoCAD Civil 3D :: Surface Not Extending To All Included Points

Jun 25, 2013

2013 version. Long story short, I am having problems with pressure networks in my drawing so to simplify things I want to just show the top of the current watermain in my profiles because we are not doing anything with the water main, though it needs to be shown in the profile. To do this I created some points where the watermain is and made their elevation 1.8m lover than the existing surface at those points (due to the 1.8m of cover the watermain has).

I then created a surface using those points and an outer boundary surrounding the points. For some reason the surface stops at one point and doesn't continue to the rest (about 5 more points). So when I create my profile the surface stops short. The points are included in the point group the surface uses, and the outer boundary doesn't cut them out either. Not sure why the surface isn't referencing those points.

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AutoCAD Civil 3D :: Compare Points Perpendicular To Surface

Feb 11, 2012

I am working on drawings where we create dtm's from surfaces, use the dtm for layout, shoot the asbuilt of the final surface, and then compare hundreds of shots to the surface to develop an as-build report.

I want to be able to select a mass of points, compare the perpindicular difference in elevation to the surface, and have an excel spread sheet generated from the results.

My coworkers are able to do this in Terramodel but I am on a mission to eliminate Terramodel from my day to day work.

Windows 7 x 64
Dell Precision M6600 Mobile Workstation
16 GB Ram
i7 @ 2.5 ghz
Civil 3D 2012 SP 1
Civil 3D 2011
Autodesk Inventor 2011
AutoCad Map 3D 2011

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AutoCAD Civil 3D :: Add Points To Surface Not In Point Group?

Mar 7, 2012

Is it possible to add points to a surface without adding them to a point group?  I've got a bunch of ponds I'm doing and it will save me some time if I could just select the points, and not have to put them in a point group then add the point group.

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AutoCad 3D :: Create Surface Quickly Using 3D Survey Points On DWG?

Oct 9, 2010

is it possible to create a surface quickly in Autocad using 3d survey points on a DWG?

The way I did it was 3dpolylines and then lofting the surfaces. Quite time consuming.

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