DXF (Drawing Interchange Format, or Drawing Exchange Format) is a CAD data file format developed by Autodesk for enabling data interoperability between AutoCAD and other programs.

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14answers
6k views

Which GIS support DXF and/or DWG?

Which GIS support DXF and/or DWG (preferably read&write)? Update: Are there any open source GIS supporting these or similar CAD files? Support of CAD files generally seems to be problematic. ...
9
votes
3answers
1k views

getting dxf files out of PostgreSQL

I've successfully loaded a bunch of shapefiles into a PostGIS database. I would like to be able to retrieve specific geometry and layers as dxf files based on SQL queries. I'm using PostGIS, GDAL, ...
7
votes
2answers
597 views

DXF attribute to z value

We have been given a DXF that contains a Elevation attribute but we would like to generate a 3D DXF. I know I can generate a 3D dxf from a shapefile using: ogr2ogr -f "DXF" out.dxf in.shp -zfield ...
6
votes
4answers
3k views

Ways to transform from DWG/DXF to GIS (Experiences are welcome)

I've got tons of DWG/DXF files with information (in several layers) dealing with: Contour lines and elevation (lines) positions of antennas (points) protection areas (polygons) administrative ...
6
votes
3answers
1k views

Is it possible to create 3D dxf with OGR?

Does anyone know if it's possible to create a 3D dxf with OGR. I would like to assign our contour lines a z value and export them to dxf for some cad work. PS I know FME can do this, however I would ...
6
votes
1answer
437 views

How do I convert a .dxf to a .shp containing a field with height information in QGIS?

I received two .dxf for my project that represent my area of interest. One of them contains buildings, the other one terrain elevation. They both are 3D. I can convert them to shapefiles successfully ...
5
votes
2answers
835 views

Python: How to export Shapely objects to DXF file

Using shapely package for Python how to export the resulting shapely objects such as buffer to a DXF file?
5
votes
5answers
3k views

How to georeference a dxf?

I have got myself a dxf which is built with units in the wrong scale. How do I upscale that in QGIS? Note it does open in QGIS, just in the wrong map units and location.
5
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2answers
274 views

How to deal with multitype data sources in QGIS?

Today I was trying to import a DXF to Qgis, the result is that qgis displays everything LINES and POINTS but it only displays options for the POINT objects. When I try to export to a shapefile, it ...
5
votes
2answers
563 views

How do I convert many .dxf files to one gdb file?

I am using ArcView and ArcCatalog 9.2 with the Data Interoperability extension and I have 159 .dxf files that are comprised of 6 files; a dessin DAO, an annotation DAO, a multipatch DAO; a point DAO, ...
5
votes
3answers
2k views

I exported a DXF from QGIS, but it won't open in AutoCAD

I'm new in QGIS and here is my problem: I exported a DXf from QGIS by right-clicking on the layer. Then tried to open in AutoCAD 2000. That did not work. AutoCAD gave a failure-message: Unknown ...
5
votes
1answer
2k views

Converting a CAD/DXF file to a SHP file

I need your ideas and suggestions about a problem.... I have a dxf file which was converted from a CAD file. I used QGIS to convert it to a shp file... This is when I realized that the text ...
5
votes
4answers
4k views

Workflow for DXF interchange with QGIS

What is the best method of importing/exporting dxf files with QGIS ? I work in an engineering field and we use CAD and specialist design programs, and often go through several iterations during a ...
5
votes
2answers
236 views

Export .mxd to .dxf

Converting a .mxd to .dxf is something we need to do, and we do not only need the layers but also the layout of a map on our .mxd to be transfered to .dxf. I've done some research on the internet but ...
4
votes
2answers
699 views

Splitting DXF layers into Shapfile layers in QGIS?

When i load a dxf into QGIS all the layers are present in the attribute table. Is it possible to split this "entities" layer in QGIS into its component parts and save each component part as an ...
4
votes
1answer
1k views

OGR and DXF files: Is it possible to handle layer names? (only “entities”)

I'm using Python and OGR to extract the layers of a DXF file and convert them into SHP. I began with: import ogr, os, sys driver = ogr.GetDriverByName('DXF') datasource = driver.Open('test1.dxf', 0) ...
4
votes
2answers
895 views

How to convert 3D DXF to PostGIS 2.0?

I'm not very skilled on using postgis but I face a problem that I must solve, i.e. create tables to load geographical data stored as dxf. I have a thousand dxf files (3d) with polylines, points and ...
4
votes
2answers
947 views

TIN Creation from 3D Contour File

I'm currently trying to import a 3D contour file into a Quantum GIS project. My question is, how can I export the DXF file from Microstation with height information? I already have imported it to the ...
4
votes
2answers
938 views

postgis error: when adding features geometry has z dimension but column does not

I have to define a geometry column in PostGIS for 2D points, but when I try to import points from DXF to postgres I get the following message: "postgis error: when adding features geometry has z ...
3
votes
2answers
169 views

Is it possible to create CAD file from shapefile and also create CAD blocks from the database fields

I am trying to find out if there is any software or plugin/code that I can bundle that will take a shapefile and export it to a CAD file with CAD blocks generated so our CAD mappers can just move the ...
3
votes
1answer
2k views

DXF format for QGIS

I am trying to import some DWG files into QGIS. I am using ODA to convert the DWG files to DXF and then want to use the Dxf2Shp converter plugin in QGIS. The ODA converter has many options for the ...
3
votes
1answer
28 views

Wrong scale when importing dxf into QGIS

Has anyone had the problem that the scale of the shp layer converted originally from a .dxf file turns out to be wrong? (for example I draw a line of 10 meters long in AutoCAD and imported it in QGIS, ...
3
votes
2answers
195 views

QGIS DXF file projection match

I need to use this file on a map but I am not able to match the projection with the others I have, primarily data downloaded from OSM (city of Boston). I read many articles, I have repeatedly tried to ...
2
votes
1answer
543 views

How can I use QGIS to convert points with elevations to DXF?

I'm trying to convert points (with their elevations) into a dxf file for use in AutoCAD LT. I've tried "save as" to dxf for the layer, which appears to almost work...the dxf has x and y location ...
2
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5answers
3k views

How to export labels to DXF file?

Is it possible to export labels based on Shapefile attributes into a DXF file? I use Quantum gis in Version 1.7.4. I've been reading a CSV file and view it as a Shape Layer. With the help of ...
2
votes
3answers
527 views

How to preserve text when converting from .dxf to .shp?

I have tried using dxf2shp converter in QGIS but the text in dxf file is being lost during the conversion process, despite selecting export text labels. I would be grateful if someone can help me ...
2
votes
3answers
760 views

How to change DXF unit by Python 2.6

I have a bunch of DXF files to import into ArcGIS 10 but they are all in mm. However I need to change the unit to Meter and to do this I have to open AutoCAD to do it each time. Can anyone help to ...
2
votes
2answers
211 views

Georeference vector linework

I'm new to GIS and a lot of searching didn't answer my specific question so far, so I hope someone can help me here. What I want to do is creating a small web application to visualize election ...
2
votes
1answer
91 views

Relationship between DXF's entities and objects

I'm trying to parse a raw .dxf file. Inside the Entities section I can see the polylines I'm looking for (they contain bus routes) and I inside the Objects section I can see each route's data (bus ...
2
votes
1answer
619 views

How to convert lines from dxf to polygons?

I have several dxf files. Each file, contains the 0 layer. The 0 layer contains lines (which make a closed polygon). In each dxf the lines have their color and line width. I do not have autocad or ...
2
votes
1answer
325 views

How to create new layer within a DXF file?

Using OGR in Python, I'd like to create some geometries within a DXF file, but not in the "0" layer, but in new ones. I tried with: import ogr, os, osr, sys ds = ...
2
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0answers
31 views

Can a DXF File contain raster images (TIFF/JPG)?

I am maintaining a large Program with a graphical editor. Our Program can export DXF and it can show Background Raster Images of various types (TIFF, JPG, BMP etc.). Is it possible to embed these ...
2
votes
0answers
254 views

.dxf export in QGIS 2.0.1 gives hatches instead of polylines

This may see like a stupid question, but I'm new to QGIS, so please bear with me. I'm having a problem when saving as .dxf. I export a building layer (polygons) as a .dxf file However in AutoCAD it ...
2
votes
0answers
182 views

Displaying text from dxf in Openlayers

I managed to import .dxf into Postgis table, and now have, among others, rows with Point geometries and values in text column (which corespodent with Label values from ACAD .dxf). What is the best ...
1
vote
2answers
123 views

“AttributeError: getZ” error when trying to get the elevation of DXF linestrings

I'm using Python and OGR to extract the elevation of lines within a DXF file. import ogr driver = ogr.GetDriverByName('DXF') datasource = driver.Open('test1.dxf', 0) layers=datasource.ExecuteSQL( ...
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vote
2answers
1k views

OGR DXF to KML conversion

I'm trying to convert a DXF 2010 file to KML using ogr2ogr: ogr2ogr -f "KML" outfile.kml infile.dxf In the file, $INSUNITS is 6, that's meters, if I'm correct? The problem is that DXF is not ...
1
vote
1answer
117 views

How to convert MXD to DWG File

I have been trying to export from MXD format to DWG format without much success. I used the Export to CAD conversion tool in GIS 9.3 but it only converts the lines and polygon.. etc to DWG format and ...
1
vote
3answers
511 views

export 3D data dxf file

I'm trying to export a DXF file from Qgis1.8.0 Lisboa and can not have a 3Dfile in Autocad! Or micristation. It results always in 2D file. How can I export height data from a shape file in Qgis? ...
1
vote
1answer
471 views

How to export QGIS contour attributes in a DXF file?

I'm new to this. I have a .tiff data file that generates contours in QGis. That's super. I save it as .dxf. The contours don't have any attributes or data. That's bad, because I want to make a 3D ...
1
vote
1answer
269 views

Dxf drawings displaying as points but i need lines

I have an autocad dwg. which i then saved as a dxf. I have way to many layers in it such as contours, buildings etc. All I need is the red and blue lines. I cannot delete the other lines as they ...
1
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1answer
770 views

Last edited information missing when used QGIS - Dxf to Shp

I am doing as constructed drawings which require the information to be in a GIS system and more specifically drainage as constructed drawings. I must have a separate file for Pipes and Pits. First I ...
1
vote
1answer
122 views

How to import a 3D DXF file into QGIS with z information as attribute value?

I have a dxf file of 3d contours. after import it does have only layer,x,y attribute and doesn't have Z attribute. how can I provide Z attribute to create a TIN file.
1
vote
1answer
633 views

GRASS v.out.dxf 3D into AutoCAD

So continuing with my last question (Create 3D dxf with OGR) I have decided to give the GRASS option a go. I have imported my polylines into GRASS using v.in.ogr and converted them to 3D using ...
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0answers
36 views

Exporting SHP files into Autocad readeable files

I have a full water supply network drawn in a shapefile which I created using Qgis 2.2.0. Now I need to export it into a format that enables me to open it in AutoCAD. I am trying to export it as a dxf ...
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0answers
128 views

Sketchup importing dxf/dwg [closed]

How do I import a dxf file into sketchup so that it appears in the vertical plane & not the horizontal plane? I'm trying to import a elevation, not a floor plan so I need it in the vertical plane. ...
1
vote
1answer
403 views

Export Postgis Geometry POINT as Label text to DXF or DGN

I really need to export, by the ogr2ogr command or similar, text information related to a geometry position from my PostgreSQL(with PostGIS) database to an AutoCAD DXF layer file or to a Microstation ...
1
vote
1answer
490 views

Export all visible layers in map view window to DXF (as one)

I'm looking to find a way of exporting all that is visible in the map view window to a dxf file. That is to say, multiple features from multiple layers, all at once. Can this be done?
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vote
0answers
106 views

Error when converting .shp to .dxf

I have created a polygon shape file in Erdas Imagine 9.2 from a raster image. I want to export it to .dxf or .dgn for further processing. When I export the .shp to .dxf in Global Mapper, large ...
1
vote
1answer
96 views

How to rescale vector data? [duplicate]

I've got some old maps in dxf format. QGIS imports them correctly but with a nonsense scale. It can export the data it gets to shp of course. Does anyone know how to rescale vector data so it can be ...
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vote
2answers
712 views

How can I “reset” SketchUp origin after importing DXF with “Preserve Drawing Origin” option enabled?

I can successfully import all of my 3D DXFs into a common location so that they are referenced correctly (in reference to each other). TO do this I simply check the Import DXF "Preserve Drawing ...