Feature request #9639
Keep CRS when saving DXF files
| Status: | Closed | ||
|---|---|---|---|
| Priority: | Normal | ||
| Assignee: | - | ||
| Category: | DXF export | ||
| Pull Request or Patch supplied: | No | Resolution: | |
| Easy fix?: | No | Copied to github as #: | 18211 |
Description
Qqis 2.2.0 by Osgeo, under Win7_x64
If you save something as DXF (setting any output CRS) and you load the .DXF file back in an empty project, the CRS is not kept.
History
#1
Updated by Giovanni Manghi over 10 years ago
- Category set to Vectors
- Status changed from Open to Feedback
- Target version set to Version 2.4
as far as I know the DXF format does not store any info about the CRS/SRID.
#2
Updated by Jürgen Fischer over 10 years ago
- Target version changed from Version 2.4 to Future Release - High Priority
#3
Updated by Novarese over 10 years ago
_Giovanni Manghi wrote:
as far as I know the DXF format does not store any info about the CRS/SRID._
@ Giovanni
Fortunatamente lo conserva:
http://novarese.t15.org/gfoss/elba_32632.zip
Se apri questo DXF nel Blocco Note e cerchi la stringa "UTM", esso è pienamente georiferito: come controprova, caricalo nella trial di Autocad Map, poi dai il comando _ADESETCRDSYS...
Il problema è che Qgis non ingloba alcun SR nei DXF, nonostante richieda di specificarlo durante il salvataggio...
@ rest of the world
Luckily it stores it:
http://novarese.t15.org/gfoss/elba_32632.zip
If you open up this DXF in Notepad and look for "UTM" string, it's fully georeferenced: as countercheck, load it in the Acadmap trial, then type the _ADESETCRDSYS command...
The issue is that Qgis does NOT embed any CRS within DXFs, even if it needs to specify it upon "saving as"...
#4
Updated by Jürgen Fischer over 10 years ago
Novarese wrote:
Luckily it stores it:
http://novarese.t15.org/gfoss/elba_32632.zipIf you open up this DXF in Notepad and look for "UTM" string, it's fully georeferenced: as countercheck, load it in the Acadmap trial, then type the _ADESETCRDSYS command...
The issue is that Qgis does NOT embed any CRS within DXFs, even if it needs to specify it upon "saving as"...
Well, applications (like Map) may save all kinds of data in custom dictionaries. The DXF spec doesn't mention ADE_PROJECTION. Do you know any spec that could help with mapping ADE_PROJECTION codes to EPSG codes and vice versa?
#5
Updated by Giovanni Manghi about 10 years ago
- Tracker changed from Bug report to Feature request
- Subject changed from Saved DXF doesn't keep the CRS to Keep CRS when saving DXF files
- Category changed from Vectors to DXF export
- Status changed from Feedback to Open
- Target version changed from Future Release - High Priority to Future Release - Nice to have
#6
Updated by Jürgen Fischer about 10 years ago
- Status changed from Open to Closed
closing for the lack of feedback