merge shapefiles: add option to get the result directly in project CRS

[qgib]

Author Name: landry Landry Breuil (@landryb)
Original Redmine Issue: 9652

Redmine category:processing/qgis

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new description:

the project CRS is not taken into account, but it can be convenient to have an option to create the result with assigned the project CRS.

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old description:

ftools's "vector->data management tools->merge shapefiles to one" doesnt obey project-wide projection settings, nor asks for the projection when creating the output file.
It seems to default to create WGS84 shapes, while my project is in EPSG:2154. Same thing if i configure it to ask for the projection of the source layers (which in that case i specify as EPSG:2154, as the source files dont have a prj file attached)

I have 'Use Project CRS' for 'CRS for new layer' in the prefs.

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Related issue(s): #16248 (relates)
Redmine related issue(s): 7208

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[qgib]

Author Name: Giovanni Manghi (@gioman)

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Hi,

I get your point but the tool actually work in a different way: it doesn't do any kind of projection transformation along with the merge operation.

The project CRS is not taken into account, and the shapefiles .prj/.qpj file is what does count at the end (not sure it the inputs shapefiles have .prj files with different CRSs).

If the shapefiles do not have any .prj/.qpj file then qgis give the result the 4326 CRS, that can of course be the right one or wrong. If is wrong then it can be corrected with the "assign projection" tool.

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• fixed_version_id was configured as Future Release - Nice to have
• tracker_id was changed from 1 to 2
• subject was changed from ftools merge shapes doesnt obey project projection setting to merge shapefiles: add option to get the result directly in project CRS
• category_id was configured as 44

[qgib]

Author Name: Giovanni Manghi (@gioman)

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• category_id was changed from 44 to Processing/QGIS

[qgib]

Author Name: Giovanni Manghi (@gioman)

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• easy_fix was configured as 0

[qgib]

Author Name: Nyall Dawson (@nyalldawson)

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Applied in changeset 3c4fb26.

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• status_id was changed from Open to Closed
• done_ratio was changed from 0 to 100

[qgib]

Author Name: Giovanni Manghi (@gioman)

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• resolution was changed from to fixed/implemented
• description was changed from new description:

the project CRS is not taken into account, but it can be convenient to have an option to create the result with assigned the project CRS.

---

old description:

ftools's "vector->data management tools->merge shapefiles to one" doesnt obey project-wide projection settings, nor asks for the projection when creating the output file.
It seems to default to create WGS84 shapes, while my project is in EPSG:2154. Same thing if i configure it to ask for the projection of the source layers (which in that case i specify as EPSG:2154, as the source files dont have a prj file attached)

I have 'Use Project CRS' for 'CRS for new layer' in the prefs. to new description:

the project CRS is not taken into account, but it can be convenient to have an option to create the result with assigned the project CRS.

---

old description:

ftools's "vector->data management tools->merge shapefiles to one" doesnt obey project-wide projection settings, nor asks for the projection when creating the output file.
It seems to default to create WGS84 shapes, while my project is in EPSG:2154. Same thing if i configure it to ask for the projection of the source layers (which in that case i specify as EPSG:2154, as the source files dont have a prj file attached)

I have 'Use Project CRS' for 'CRS for new layer' in the prefs.