I have a python code which converts JSON text file to a shapefile. I have to set coordinate system to this shapefile created. I do not want to access the .prj file from my computer as this code will be embedded in a web toolbox.
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1What is your GIS software platform?– blah238Commented May 31, 2012 at 23:22
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2 Answers
There's a Python code example for doing this under Define Projection.
answered May 31, 2012 at 22:33
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@PolyGeo.. ya I used that. It worked , I wanted that only. Thanks– mridulCommented May 31, 2012 at 23:29
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1How did we know he.she was on the ESRI platform? Is it safe to assume that all new posters who don't specify their platform are using ESRI?...curious... Commented Jun 1, 2012 at 2:30
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It sounded like ArcGIS/ArcPy and I had answer at fingertips so did not take time to be certain.– PolyGeo ♦Commented Jun 1, 2012 at 4:45
There is no way to set a shapefile's coordinate system without the .prj file. Without knowing your platform it's hard to provide advice. You mention a 'web toolbox' and python. If you know the input coordinate system of your JSON text file(which I'm betting is WGS84 lat/lon). You could build a generic .prj file on the fly to kick back to the user to accompany the generated shapefile.
Something like:
body='GEOGCS["GCS_WGS_1984",DATUM["D_WGS_1984"'
body+=',SPHEROID["WGS_1984",6378137.0,298.257223563]]'
body+=',PRIMEM["Greenwich",0.0],UNIT["Degree",0.0174532925199433]]'
fout=open("c:/whereverIamstagingmyshapefileoutput/myprj.prj","w")
fout.write(body)
fout.close()
answered May 31, 2012 at 22:30
