[gdal-dev] SetUTM - how to say how far north Python

Chris English sglish at hotmail.com
Wed Jun 15 12:24:27 EDT 2011


Hi,
Assuming the following:
>>> src_ds = gdal.Open('test_3.ter')>>> dst_ds = driver.CreateCopy('test_6.hf2', src_ds, 0)>>> dst_ds.SetGeoTransform([582495,1,0.5,4512717,0.5,-1])0>>> srs = osr.SpatialReference()>>> srs.SetUTM(18,1)0>>> srs.SetWellKnownGeogCS('WGS84')0>>> dst_ds.SetProjection( srs.ExportToWkt())0>>> dst_ds = None>>> src_ds = None>>> gdalinfo.main(['foo','test_6.hf2'])Driver: HF2/HF2/HFZ heightfield rasterFiles: test_6.hf2       test_6.hf2.aux.xmlSize is 4, 4Coordinate System is:PROJCS["UTM Zone 18, Northern Hemisphere",    GEOGCS["WGS 84",        DATUM["WGS_1984",            SPHEROID["WGS 84",6378137,298.257223563,                AUTHORITY["EPSG","7030"]],            TOWGS84[0,0,0,0,0,0,0],            AUTHORITY["EPSG","6326"]],        PRIMEM["Greenwich",0,            AUTHORITY["EPSG","8901"]],        UNIT["degree",0.0174532925199433,            AUTHORITY["EPSG","9108"]],        AUTHORITY["EPSG","4326"]],    PROJECTION["Transverse_Mercator"],    PARAMETER["latitude_of_origin",0],    PARAMETER["central_meridian",-75],    PARAMETER["scale_factor",0.9996],    PARAMETER["false_easting",500000],    PARAMETER["false_northing",0],    UNIT["Meter",1]]Origin = (0.000000000000000,0.000000000000000)Pixel Size = (1.000000000000000,1.000000000000000)Metadata:  VERTICAL_PRECISION=1.000000Corner Coordinates:Upper Left  (   0.0000000,   0.0000000) ( 79d29'19.48"W,  0d 0' 0.01"N)Lower Left  (   0.0000000,   4.0000000) ( 79d29'19.48"W,  0d 0' 0.13"N)Upper Right (   4.0000000,   0.0000000) ( 79d29'19.35"W,  0d 0' 0.01"N)Lower Right (   4.0000000,   4.0000000) ( 79d29'19.35"W,  0d 0' 0.13"N)Center      (   2.0000000,   2.0000000) ( 79d29'19.41"W,  0d 0' 0.06"N)Band 1 Block=256x1 Type=Float32, ColorInterp=Undefined  Unit Type: m0>>> 
and assuming I wanted to be nearly in New York rather than La Concordia Peru,how to say 'how far north'?
Thanks in advance,
Chris 		 	   		  
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