AutoCAD Civil 3D :: Using Multiple Coordinate Systems At Once
Jul 14, 2012
I'm finding myself on more and more sites that use multiple coordinate systems and height datums.
We have 3 on this job. One is the MGA zone 50 GDA94, another is just an offset of this and the third is a strange local grid with offsets and rotations.
We have Excel spreadsheets that can convert between the systems, but that requires several extra steps per point.
Is it possible to define each coordinate system in one drawing so that I could select which system I wanted to use, input the points and then select the main coordinate system so it converts the coordinates directly? It would mean less steps and I would have greater confidence in this system.
We have the parameters for all systems.
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Jul 17, 2012
I'm enlisted in the United States Air Force and am working with the Navy for topo surveys. I'm bringing my information into AutoCAD Map 3D 2010 and using the coordinate system UTM84-4N. I can't figure out why when I bring in my survey .dwg, all of the points are in the middle of the ocean.
I've tried to manually project the coordinate systems onto each file and reference them. I've changed units to meters. I've copied with base point 0,0 and pasted as the same. I've even opened a fresh file, gave that a projection, imported the drawing from "Map Explorer" and queried "ALL" and redrew the file and still nothing. I've checked the Geo-Markers and they're obviously off. Is there a way to match them and have it scaled properly?
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May 17, 2011
A - Autodesk will fix them in a timely fashion during this release - Not holding my breath here
B - Others won't spend hours trying to figure it out.
In my case, I need to create multiple unique coordinate systems called Low Distortion Projections (Google it for explanation.)
Here are the problems identified so far with the 2012 version of the Coordinate Library
Coordinate System Categories
1 - The regional 'containers' that hold coordinate systems definitions. You cannot create an empty container. It requires at least 1 coordinate system definition to be created. When creating a container put an arbitrary coordinate system definition in. This assists with item 2b.
Coordinate System Definitions
2a - Getting started - There is no provision to just select an existing datum or ellipsoid. One must 'create' a new definition that may vary in name only. The vast majority of us using their products will not actually create new ellipsoids or datums just utilizing them as the basis for other projections.
2b - Creating definition - Continuing the definition process the definition needs to be placed in a coordinate system category. Due to the problems identified in item 1 this creates a circular error. The workaround being item 1 rather than creating multiple definitions in the wrong container then going back to fix them.
2c - Scale Reduction - This should be renamed to Scale Factor to fit with the rest of the known world as the value can be greater or less than unity (1.000000) In my case the values all happen to be something greater than 1. While on this subject, the autodesk programmers set this to do something totally unexpected. No matter what you set the value to, if you save and reedit the projection value will be displayed as '1'
2d - Missing Projection definition form data - I went through the projection definitions and found the following projection types were missing their fields in the form:
Oblique Mercator
Ordanance Survey National Grid Transformation 1997
Ordanance Survey National Grid Transformation OSTN02
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Nov 6, 2012
If I set up my Civil 3D drawing in some known coordinate system, e.g. State Plane, in the "drawing settings", can I then toggle my drawing into other known systems, e.g. UTM, by changing the coordinate system under "drawing settings"?
If not, how are the coordinate settings used?
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Aug 1, 2012
I have a problem with different coordinate systems. I have a drawing in old Finnish coordinate system (KKJ, kaista 4) and I have a point file, which is made in ETRS-GK29 coordinate system. When I try to transfer the points to the drawing, the points will land way off from the drawing or I get this error message "Coordinate transformation from ETRF89.FinlandGK-29 to FINL-KKJ4 failed for point located at {29511662.554000,6948599.365000}. This usually indicates the point falls outside the boundaries of the destination coordinate system". I have checked and the point {29511662.554000,6948599.365000} should be over the drawing.
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Jul 9, 2012
My Civil 3D 2012 coordinate systems normally displayed on the units and zone tab of the drawing settings have disappeared. On existing drawings the coordinate system code is still displayed. On new drawings the code appears as a symbol - a period or a comma or something. I can enter the coordinate system code and the program recognizes it.
My Civil 3D 2011 coordinate systems display as expected.
WP7,SP1, 64-bit, Civil 3D 2012
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Jan 8, 2012
Got a new Windows 764 bit computer. Installed 2012. Using the Map Wspace to attach jpegs. I connect to the image and go to edit the coordinate system. On the new computer, I only have a half dozen coordinate systems, none of which are PAN83.
I go to my old XP pro 32 bit computer and the whole list of coordinate systems comes up.
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Aug 30, 2012
I can not change coordinate systems of Surface models and COGO points. Why?
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Nov 3, 2012
I want to know why I can't change coordinate of points while importing points from Points menu?
I created new file, assigned any coordinate system to the model. Opened Import points windows there, created new file format which there I assigned Coordinate zone transform to the coordinate system of the text file and imported my text file. But the coordinates of points didn't changed or transformed. When I do it by Survey in Toolspace its works good. I want to know whether I did any wrong or it is problem of software.
I use AutoCADCivil 2013 64 bit in Windows 7 64 bit!
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Jul 19, 2012
I am using Civil 3D 2012 with SP1. When I use data connect and attempt to edit the coordinate system the Coordinate System Library that pops up only shows 5 No Datum coordinate systems. The Datum box under Show is uncheck, unfortunately it is also greyed out and uncheckable. How do I get this box checked?
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Mar 9, 2012
Installation of Autocad Map 2012 provides a list of thousands of coordinate systems, datums, geodetic transformations, etc.. but I see that the system doesn't allows editing (they are read-only) and always I have to create new systems, new datums ..Is there any way to make it editable?
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Jul 23, 2012
Is there a way to change a drawing in AutoCad 2012 or 2013 from Michigan Georef to State Plane? Any converter calculator, an add on,etc?
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Jan 30, 2012
Is there a way to set Inventor so that the sketch origin defaults to the part origin? I find it very frustrating that it always defaults to some random corner of the part's body. It can screw up a part if you decide later on to modify the part such that you eliminate the point to which a coordinate system was defined. Also, when copying and pasting a sketch to new work planes it can be a pain to figure out which point is the origin of the orignal sketch if the pasted sketch is misaligned.
I know you can edit the coordinate system after a sketch is created, but I'd prefer not to have to rememember to do that with every sketch.
This was brought up about 6 years ago and there was no formal resolution
[URL]
In the second-to-last post John-IV8SP1mentions an option under 'Application Options' for an older version of AI, but I cannot find it in the 2012 applicaton options.
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Apr 1, 2010
I have some UTM images that I need to convert to State Plane. If I import them into map with raster design and export them to the state plane coordinate system, they work just fine, but I can't figure out a way to get rid of the black wedge that it makes along the edges of images.
If I query them in using map I can transform the coordinate system, but then every time I open the drawing it takes like 5 minutes just to open.
What has everyone else done to use multiple images in a drawing and transform or convert the coordinate system of the images?
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Dec 18, 2013
If you create any custom coordinate systems in 2014 products (Civil3D, Map3D) *.CSD files are created in C:Users{user_name}AppDataLocalAutodeskUser Geospatial Coordinate Systems with the additional data in them.
My question is - can you have multiple 'coordsys.csd' files?
The reason for asking is that we are setting up a large number of low distortion projections that are specified by a government roading agency and I figure the best way to distribute these is to create a coordsys.csd with them and sync it out to everyones profile (the location shown above), but there could then be issues if a user then sets up some additional coordinate systems that will only be on their computer, if we altered or expanded the company definitions and sync'd these out again it would overwrite the users ones.
It would be good to be able to have mutilple custom coordinate system files - ones for particular clients, countries, individual users etc.
Civil3D 2014 - Windows7 64bit
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May 23, 2012
How do I add my own system in Civil3d? We have a little strange system here with a deformation model, but I suggest that isn't a problem.
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Mar 27, 2013
Each time an @ is entered at the command line, C3D is freezing for up to 15 seconds before allowing the comand to continue. It wasn't happening last week and no changes have been made to the instalation. What could be causing this glitch?
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Sep 2, 2013
I want to have a piece of text added to the drawing notes that uses a field (or similar), to list the coordinate system code assigned to the drawing, i.e. UTM83-12.
Any setvar or something that I can use?
There are load of different coordinate systems to choose from, and I don’t want to have to manually enter it for every drawing.
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Nov 20, 2012
My group is trying to convert a dwg from one coordinate system to another. The original drawing contains points, blocks, etc. in 1 system and we need it in a different one. We tried attaching the dwg to a new map with the new system using a layer query, but this did not appear to bring in the objects into the new system.
"Structures" is in the original system (OR83-NF), "StructuresHarn" is in the desired system (ORHP-NIF)
P.S. C3D 2011
Civil 3D 2013, HF3.0
Windows 7, 64-bit, SP1
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Feb 21, 2012
I am using Civil 3D and Map 3D 2010.
I have some points in a drawing set up in a coordinate system and using a specified point file format, I successfully exported them to another coordinate system for use by our surveyors. I also wanted the pipe route in my destination drawing so I created a shp file from a polyline representing the pipe route in the original drawing using Map 3D Export. When I imported the shp file into my destination drawing there appears to be a slight horizontal difference from the point locations. The shp file doesn't land directly on the points.
To try another comparison, I ran a query on the pipe route to perform a manual coordinate system transformation. The result of this is the exact same as the shp file.
My questions are, which method (exporting points vs. shp files) results in the correct coordinate transformation and why are they different? When exporting points I am not using any specific transformation settings, I am simply selecting the destination coordinate system. When exporting a shp file, Map 3D creates a prj file from the specified coordinate system in the drawing. Are there any other settings I need to adjust to get the same result with both processes? The only thing I can think of is I only have the coordinates out to 4 decimal places in my point file format, do I need to go out farther?
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Sep 3, 2013
Is it possible to turn off or disable the coordinate or drawing conversion on import. I know I can turn it off in a dwg file but I want to completely disable it no matter what the setting is in the dwg file.
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Jul 9, 2013
I have a created a TIN surface with a DEM file. Drawing coordinates are State Plane NAD 83 feet. DEM file coordinates are UTM NAD27 meters. Surface is shifted approx. 835 miles east.
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Feb 16, 2012
I am trying to convert point data from NAD83 State Plane Coordinates to UTM coordinates.
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Dec 24, 2011
I have some problem with paste to original coordinate that it appears as grey in right click as shown in attached file but it can paste from ribbon.
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Mar 2, 2012
How can I show coordinate on Civil 3D? I inserted a map from Google earth and I want the coordinate to be there.
Civil 3D 2012 SP1
8 GB Ram
i7-2630 @ 2.0 GHz
64 Bit Window 7 OS
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Apr 13, 2012
I am a new user of civil 3D 2012. How to write a new coordinate category in my computer.
I am using a 64 bit windows 7 and everytime I attempt to write a new coordinate system category it always display the words " no access to write to the dictionary".
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Feb 19, 2013
If you have a dwg that is, say, done in west zone but some agencies want you to provide a table of west and east zone coordinates is there a transform function that will do this in a label?
I would still wan everything in the dwg to be in west zone but be able to display coordinate values in other zones.
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Mar 8, 2013
Mapimport command maintains integrity of x,y coordinates. Adding dem information to a civil3d TIN surface does NOT.
Detailed screen shot(s) attached.
Detailed:
I am trying to create a tin surface in autoCAD from a raster dataset in GIS. Originally, my raster dataset was in UTM's (Zone 10N), and my CAD drawings were in CA State Plane (zone 2, US feet). Both NAD83. But I have, to date, been unable to get AutoCAD to correctly convert between these two coordinate systems. I thought, hmm.. let's just convert to State Plane in GIS and then add to the surface definition in AutoCAD. I had hoped this approach would 'go easy' on autoCAD as it would not need to do any conversions. Turns out, that does not appear to work either. In fact, it is even further 'off' than before... I hope the attached PDF illustrates the situation clearly. AutoCAD's mapImport command works great. The surface boundary can be imported and appears to have the correct coordinates. The surface, with the dem added to the definition, however, does not. It is shifted down and to the left.
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Mar 23, 2012
I've been using the COGOEditor in civil 3D 2012. I enter a description for each entry. The description does not get saved. If i open the traverse file using a text editor, enter a description, save it, then reopen in COGOEditor, I still don't see any descriptions.
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Apr 22, 2013
I have Points in Civil 3D that are in the Washington State South Zone NAD 83 Coordinate System and would like to get these points converted to Washington State North Zone NAD 83 Coordinate System. I am able to convert drawings entities to the new coordinate system using MAPEXPLORER but the points do not go with it.
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Aug 10, 2012
I have 50+ project sites scattered along a 600+ mile alignment. My alignment reference drawing coordinate system is set to a UTM coordinate system. My project site drawings are set to state plane coordinate systems. Does coordinate transformation automatically occur with data references?
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