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From my point of vue, projections are not at all easy to handle in QGIS. After days struggling with the different layers in my project, I think I finally understood how SCR works. I differentiate 3 actions : A1. Project properties > SCR, you can click on the icon where EPSG is written in the bottom right corner This defines the proprieties of the canvas ...


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You can pull this out of the DBs that ship with GeoTools as well. There is a method on CRS for it whose name escapes me but should be obvious.


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You can download the EPSG data from http://www.epsg.org/DownloadDataset after you register. No cost to register, and no delay between registration and download. There are two formats that might be useful - a set of PostgreSQL scripts (also other databases, but PostgreSQL is the one I checked) that insert data, so you can do a query of the epsg_area table. ...


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Download the MS Access database and/or the polygon shapefiles from the EPSG Geodetic Dataset Registry (upper right, "export registry"). You do have to register, but we don't spam or sell the list of registered users. The MS Access database contains the rectangular extent areas of use only. Or you can download the files from the OGP website, same login ...


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We have had this same issue. And FYI, when you import that shapefile into POSTGIS, you will likely not have an SRID code there as well. What I curiously found, was that when you do a "save as", and choose the correct projection, we were choosing EPSG:4326, QGIS writes a *.prj file, yes, but the prj file does not have any EPSG metadata, authority descriptors ...


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You should be able to simply add your EPSG:32649 image to a data frame that has its coordinate system already set to EPSG:4326. On-the-fly projection should take care of displaying it in the correct location. If you need to set a transformation, then doing this should trigger a warning for you to do so.



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