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11

You can convert the DWG files to DXF (which QGIS does support) using the Teigha® File Converter. It's a free (not open source unfortunately) cross-platform application provided by the ODA to end users only for the conversion of .dwg and .dxf files to/from different versions. The following platforms are supported: Linux (OpenSUSE 11.2/Ubuntu 10.10 x86) ...


7

Can you get your dwg as dxf? then can use the QGIS plugin DXF2Shp If you download FME Beta (for trial) that WILL work very well.


7

It depends on what you mean wih import. Import data to actually do something with it, or just to have a background layer for viewing. Also consider this: In GIS, basic building blocks are points, lines and polygons (sometimes called basic topological types), and inside CAD, you are working with drawings which can be made of anything, including objects that ...


6

if they are drawing in just autocad, you will be relegated (restricted) to planar equal area coordinate systems as the output. if they are drawing using autocad map3d then there is at least a chance that the drawing is in an actual crs to start with. if 1 then you wil need to move, rotate, scale the dwg using a known point as "base point". I ussually do ...


6

FME will convert data between formats and has a good story for transforming CAD > GIS. See: http://www.safe.com/solutions/GIS/CADtoGIS.php Disclosure - I do work for Safe Software, the creators of FME. But it is ideal for this scenario, otherwise I wouldn't suggest it. As to problems with CAD into GIS, one other issue is geometry types. CAD typically has ...


6

Problem with DWG and DXF formats is that Autodesk does not publish full specifications. DXF Format DXF ASCII format is well known and most of packages can read it. Binary DXF is partially documented and since it is not primary AutoCAD format, it is rarely supported. For more details see here: AutoCAD DXF DWG Format DWG format is read by most GIS ...


5

GRASS GIS 6.4 supports import and export of 2D and 3D DXF through v.in.dxf and v.out.dxf. In GRASS-Addons there is a new prototpype for a DWG import module, based on LibreDWG.


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What are the biggest issues I dont have the time (right now, ill try edit later) to provide a detailed answer, but the main issue with CAD data is typically, CAD technicians create plans with no regard to coordinate systems. i.e. They plot around the origin of 0, 0, = I've work on plenty of projects where people dont understand that a bit more work is ...


5

This message: During translation, some features were read that did not match a reader feature type in the workspace. This can happen if the reader dataset is changed, or a reader feature type removed or renamed. ...should have nothing to do with how the data is written, just what is read. This FME Evangelist post should explain that part of the ...


5

There may or may not be projection information in the autocad drawing. If there is it can be read only with one of the GIS products from Autodesk (i.e. map3d, civil3d, mapguide). You will need to either... 1. use an autodesk product to discover the assigned crs. 2. contact the originator and find out the crs. 3. convert to a format you can use (probably ...


5

It seems to me that the main problem for you is to introduce some order to your tons of DWG/DXF files with information (in several layers). Regardless of choosing software/tool I can recommend you to describe your data. Here is some thoughts: You should develop some kind of unique codes for all types of your features. It can be one attribute or several or ...


5

I often recieve cad files but I don't have AutoCAD, so I break them down with DoubleCAD XT which is a free download. I export each layer or set of data by selecting it then SAVE AS (toggle the selected option) type = DXF-2004-2006. These seem to import fine into QGIS, when you open it up as a vector layer. FME server might be worth a try as well, ...


5

I am not aware of a GDAL/OGR build available anywhere with DWG support enabled. As noted, this depends on an SDK that requires non-trivially complex licensing arrangements. If you really need it, you are best off joining the open design alliance and building it yourself.


4

autocad map 3d will easily geo-reference your dwg/dxf files and allow conversion to 12 gis formats. Unless you add FME desktop also (FME extsion for ArcGIS). Then with FME extended to arcmap and autocad you have all ~275 formats. But doing it through map3d you have access to some particularly useful tools. (i.e. select by layer, color, linetype, or even ...


4

there is a free online-tool for converting dxf and dwg to shapefile and kml here: http://acadconverter.chrismichaelis.com/v2012/, but I did not tested it in lack of a dwg


4

I managed to do this by making a new field in my shapefile called 'ELEVATION'. You can add fields in ArcCatalog. I copied the data over to the new 'ELEVATION' field, so the two were identical. When I exported to CAD, CAD picked up the data seamlessly.


4

FME can do Shape to AutoCAD Blocks This was modified (for FME 2013) from the original on FMEPedia http://fmepedia.safe.com/articles/How_To/Creating-AutoCAD-Blocks-with-FME Product: FME Desktop http://www.safe.com/fme/fme-technology/fme-desktop/overview/


3

You need to understand the CAD file format (DWG have many variants) and going to a folder based format (File Geodatabase). Note: ArcGIS does need to be installed for conversion to ESRI Geodatabase formats. [But not shapefiles] Here is a video from Safe Software last week [22nd November 2011] CAD to GIS formats ...


3

Relima; I've had this same quest for a while now, I've managed to do it relatively easy with Kosmo in X simple steps: Convert dwg to dwg 2000 with Teigha File Converter fro the Open Design Alliance; Open this dwg in Kosmo; Save it as an ESRI Shape file, as you mention it will create 2 or 3 shapes point, polygons and lines; Select elements by the field ...


3

Consider ogr2ogr ( http://www.gdal.org/ogr2ogr.html ) for future data conversion needs. It is part of the ogr ( http://www.gdal.org/ogr/ ) project. This is a command line utility to will convert to/from just about anything ( http://www.gdal.org/ogr/ogr_formats.html ). From the website: "This program can be used to convert simple features data between file ...


3

Kosmo (http://www.opengis.es/)can read and write to DXF/DWG, when writing it uses/creates a layer called Default, it also has some basic CAD tools implemented. Hope it works


3

It sounds like you have some major batch processing and therefore, I would be inclided to script this. Doing this all by hand might be feasible but a pain. At least with a script, if you muck something up you can just correct the script and re-run. Also, you have a chance to unify a lot of the non-standard naming etc by using regular expressions and ...


3

Autodesk DWG TrueView is a a free stand-alone .dwg viewer with DWG TrueConvert software included. It includes PDF plotters so you can directly plot to pdf. This would be the most reliable option. you can download from Autodesk Website There is a Plot/Batch Plot option too


3

For future reference, it helps to add as much relevant information to your question as possible in order to obtain the best answer. In this case, something that would be useful is to say what projection you think your CAD file should be in, and possibly give a screenshot of the coordinates you are seeing when you have loaded the CAD file into ArcGIS. You ...


3

Open Source gvSIG is said to capable of opening DWGs. From there, it should be possible to export to shapefiles. Not tested here I'm afraid. Nick.


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DWG is a proprietary format owned by Autodesk -> people aren't allowed to just reverse engeneeir it. I believe that the commercial teiga package (what ogr uses for DWG support) requires licencing: you have the pay a montly fee . OSGEO can't include it in their distribution, only paying members can. Mayby you can use their converter to convert you DWG to ...


3

How you mentioned is exactley how it needs to be done. You need to export the annotations to a geodatabase and then export them to CAD. There is also some fields that need to be added so everything exports right. There is a technical article that outlines the steps; I've had to do this a number of times. This is probably doable with a model, but I think ...


3

the two things you are asking for don't go together. If you want the layout it will ONLY have paper coordinates. If you want real world coordinates it will never know the orientation of your paper (or layout). The work around would be to get the data in the dataframe exported (using the export to cad function for each data layer you want in the drawing. (you ...


3

You can use AutoCAD Map 3D to reproject DWGs. The transformation of the datum is supported in this process too. The steps are well documented in AutoCAD Map 3D help: Use AutoCAD Map 3D > Task Workflows > Work with Coordinate Systems > Transform a DWG File to a Different Coordinate System Here's a summary: Create a new DWG Assigning the target coordinate ...


3

As far as I know, which may not be very far, you can't do that. An mxd is a separate document from the data it contains. Many CAD programs can use shapefiles, although again you wouldn't get symbology. For text, try converting it to annotation and maybe that will export to CAD. Do this on a copy of your data. I'm more used to bringing CAD into Arc than Arc ...



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