30
votes
Computing parameters for QGIS Affine Transformation
First you need to project your geographic coordinates to a cartesian 2D coordinate system, since affine transformations don't apply to geographic coordinate systems.
You can apply an affine ...
- 33.9k
12
votes
Georeferencing DXF using QGIS?
Another - more interactive - option is the Vector Bender plugin. It
does to vectors what georefencers does to raster. This feature is also known as "rubber sheeting".
There is even a video ...
- 82.1k
9
votes
Exporting to DXF file from QGIS?
There is now native export into DXF in newer versions of QGIS which allows to export map layers including the labels:
More about the functionality can be found here:
https://www.qgis.ch/en/projects/...
- 9,236
8
votes
Importing DXF in QGIS 3
Option 1: You don't need a plugin for that. You can import DXF (or DWG) in Qgis with a built in option: go to: project >> Import/Export >> Import Layers form DWG/DXF .
Later you can export or save it ...
- 531
7
votes
Importing 3D DXF file into QGIS with z information as attribute value?
Miro's answer will work fine, but if you just want to add a Z value to your attributes table (perhaps for labeling in a map or some other reason), I would start as he suggests:
v.in.dxf - to import ...
- 33.1k
7
votes
Importing 3D DXF file into QGIS with z information as attribute value?
When talking about having only contours in 3D dxf, the proper way is definitely NOT extracting the vertices as XYZ and interpolating the surface from points. That way you lose the information about ...
- 9,236
7
votes
Accepted
QGIS Export: Set DXF Layers By Attribute
For the sake of closure (and in case I need to look this up again) I'm posting how I created my DXF file with layers. This uses ogr2ogr, but I used the QGIS toolbox so I guess technically it could ...
- 556
7
votes
Accepted
Can't export geometry generator styling to DXF - alternatives?
Important 2018 update
I'm not sure which update of QGIS 2.x and 3.x changed it, but as of 2018 November and probably earlier, geometry generator symbology styling does get exported with the native ...
- 7,459
5
votes
How to convert MXD to DWG File
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....
- 2,240
5
votes
Accepted
How to extract style data from DXF when converting to geoJSON
Have a look at the attributes. GDAL can read the styles from DXF:
ogrinfo jcsample.dxf -al
INFO: Open of `jcsample.dxf'
using driver `DXF' successful.
Layer name: entities
Geometry: Unknown (...
- 52.5k
5
votes
Accepted
Import .dxf with pyqgis
When constructing the layer URI, remove blank spaces and use geometrytype parameter (all in lower-case) instead of geometryType. See the PyQGIS Cookbook for reference.
The relevant part in your code ...
- 33.9k
5
votes
Accepted
Export DXF from QGIS layer using PyQGIS?
You can take example on the code in qgisapp.cpp and transform it to python as follows (just replace the elements within underscores):
dxfExport = QgsDxfExport()
settings = iface.mapCanvas()....
- 1,381
5
votes
Accepted
Existing C++ libraries that convert ESRI shapefile to DXF/DWG
GDAL supports open ESRI Shapefile and save it as DXF.
The C++ API intro is here: https://gdal.org/ogr_apitut.html
- 3,146
5
votes
Accepted
Converting GeoDataFrame to DXF using GeoPandas
GeoPandas supports dxf. You just have to keep in mind that dxf can hold only geometry, not attributes, which means that you have to save GeoSeries, not GeoDataFrame.
geodataframes = [gdf1, gfd2, gdf3]
...
- 2,159
5
votes
Accepted
Export Project to DXF dialog using Python
Does DxfLayer even support multiple inputs?
No. The error QgsDxfExport.DxfLayer(QgsDxfExport.DxfLayer): argument 1 has unexpected type 'list' states that, explicitly.
But you can use
dxfExport....
- 55.8k
4
votes
DXF export in QGIS giving hatches instead of polylines
Qgis uses GDAL's ogr2ogr to export between formats and from www.gdal.org, "Polygon and MultiPolygon features are written as HATCH entities", so the hatches in AutoCAD should be expected. To generate ...
- 2,100
4
votes
Project house on WGS84
You can accomplish it by using the QGIS Vector Bender plugin, which allows you to translate, rotate, scale, and even distort (if necessary) your original DXF layer.
Basically, you will need to ...
- 33.9k
4
votes
Project house on WGS84
What you are missing is the coordinate of the origin (0,0) of the DXF drawing in degrees. You would have to put up a local coordinate reference system on the origin of the drawing. If you are lucky, ...
- 75.1k
4
votes
Accepted
How to export elevated contours to a DXF file in QGIS
If your original data set is in 2D then you have to add -dim 3.
Try this command:
ogr2ogr -dim 3 -zfield ELEV -f DXF contours-out.dxf contours.shp
The warning about attribute creation is no problem, ...
- 6,762
4
votes
Label rotation values in DXF imported into QGIS
Answer of Carlos is good. Just some precision here.
Concerning angle calculation :
-0.8028514559 * 180 / pi() = -46
-46° is equivalent to +314° :
360 - 46 = 314
To setup your layer :
On your ...
- 841
4
votes
How georeference a DXF file in QGIS 2.14?
You can use affine transformation plugin if you know the offset of the vectors, DXF have to be converted to QGIS editable format (e.g. shapefile)
You can use LibreCAD to translate the DXF file
You can ...
- 6,762
4
votes
Export DXF from QGIS layer using PyQGIS?
If I use your code in the Python Console with the QgsVectorFileWriter() class , the value 5 is returned which seems to be a ErrAttributeCreationFailed. We could skip the attribute creation using ...
- 72.4k
4
votes
Export DXF from QGIS layer using PyQGIS?
Suggested solution: using the ogr library, with this approach it is possible to set the value of the "Layer" attribute of the DXF with an attribute from the inLayer.
from osgeo import ogr
import os
...
- 1,826
4
votes
Re-scaling and moving vector layer manually in QGIS
I was a tester of the 3.0 version of QAD plugin, which I consider an impressive programming job.
The plugin is still in the experimental phase, but you can install it if you enable the option to ...
- 12.1k
4
votes
Re-scaling and moving vector layer manually in QGIS
The Plugin AnotherDXFImporter contains a module for georeferencing:
3.2.1. Parameter
By means of X and Y offset, a simple displacement of the DXF can be achieved. This is y.B. useful when the ...
- 1,357
3
votes
Accepted
Exporting QGIS shp file to dxf-Which dxf format?
QGIS is built with GDAL/OGR which exports to AutoCAD 2000 DXF format (which means so does the ogr2ogr utility). I don't know what version GRASS writes to (in Processing Toolbox), so that may be worth ...
- 33.1k
3
votes
Accepted
Wrong scale when importing dxf into QGIS?
Google satellite (EPSG:3857) is not a good idea. The units are metres, but only at the equator. The more to the North you go, the greater the difference gets.
Alternatively, you can use a custom CRS ...
- 75.1k
3
votes
Is it possible to create 3D dxf with OGR?
For the sake of completeness.
I believe this should be a comment on Regan response. But since I don't have enough reputation I'll leave it as a response.
The DXF writer supports 2.5D layers, and ...
- 31
3
votes
Georeferencing DXF using QGIS?
The Plugin AnotherDXF2Shape contains a Georeferencing modul:
Parameter
By means of X and Y offset, a simple displacement of the DXF can be achieved. This is y.B. useful when the original coordinates ...
- 1,357
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