[23] | 1 | #!/usr/bin/env python |
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| 2 | #****************************************************************************** |
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| 3 | # $Id: epsg_tr.py 18194 2009-12-06 20:07:45Z rouault $ |
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| 4 | # |
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| 5 | # Project: CFS OGC MapServer |
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| 6 | # Purpose: Script to create WKT and PROJ.4 dictionaries for EPSG GCS/PCS |
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| 7 | # codes. |
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| 8 | # Author: Frank Warmerdam, warmerdam@pobox.com |
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| 9 | # |
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| 10 | #****************************************************************************** |
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| 11 | # Copyright (c) 2001, Frank Warmerdam |
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| 12 | # |
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| 13 | # Permission is hereby granted, free of charge, to any person obtaining a |
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| 14 | # copy of this software and associated documentation files (the "Software"), |
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| 15 | # to deal in the Software without restriction, including without limitation |
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| 16 | # the rights to use, copy, modify, merge, publish, distribute, sublicense, |
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| 17 | # and/or sell copies of the Software, and to permit persons to whom the |
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| 18 | # Software is furnished to do so, subject to the following conditions: |
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| 19 | # |
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| 20 | # The above copyright notice and this permission notice shall be included |
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| 21 | # in all copies or substantial portions of the Software. |
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| 22 | # |
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| 23 | # THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS |
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| 24 | # OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
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| 25 | # FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL |
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| 26 | # THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER |
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| 27 | # LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING |
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| 28 | # FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER |
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| 29 | # DEALINGS IN THE SOFTWARE. |
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| 30 | #****************************************************************************** |
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| 31 | |
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| 32 | try: |
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| 33 | from osgeo import osr |
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| 34 | from osgeo import gdal |
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| 35 | except ImportError: |
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| 36 | import osr |
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| 37 | import gdal |
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| 38 | |
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| 39 | import sys |
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| 40 | import string |
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| 41 | |
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| 42 | # ============================================================================= |
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| 43 | def Usage(): |
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| 44 | |
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| 45 | print('Usage: epsg_tr.py [-wkt] [-pretty_wkt] [-proj4] [-xml] [-postgis]') |
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| 46 | print(' [-skip] [-list filename] [start_code [end_code]]') |
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| 47 | sys.exit(1) |
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| 48 | |
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| 49 | # ============================================================================= |
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| 50 | def trHandleCode(code, gen_dict_line, report_error, output_format): |
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| 51 | |
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| 52 | import time |
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| 53 | |
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| 54 | try: |
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| 55 | err = prj_srs.ImportFromEPSG( code ) |
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| 56 | except: |
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| 57 | err = 1 |
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| 58 | |
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| 59 | if err != 0 and report_error: |
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| 60 | print('Unable to lookup ',code,', either not a valid EPSG') |
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| 61 | print('code, or it the EPSG csv files are not accessable.') |
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| 62 | sys.exit(2) |
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| 63 | else: |
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| 64 | if output_format == '-pretty_wkt': |
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| 65 | if gen_dict_line: |
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| 66 | print('EPSG:',code) |
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| 67 | |
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| 68 | print(prj_srs.ExportToPrettyWkt()) |
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| 69 | |
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| 70 | if output_format == '-xml': |
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| 71 | print(prj_srs.ExportToXML()) |
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| 72 | |
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| 73 | if output_format == '-wkt': |
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| 74 | if gen_dict_line: |
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| 75 | print('EPSG:',code) |
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| 76 | |
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| 77 | print(prj_srs.ExportToWkt()) |
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| 78 | |
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| 79 | if output_format == '-proj4': |
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| 80 | out_string = prj_srs.ExportToProj4() |
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| 81 | |
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| 82 | name = prj_srs.GetAttrValue('PROJCS') |
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| 83 | if name is None: |
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| 84 | name = prj_srs.GetAttrValue('GEOGCS') |
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| 85 | |
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| 86 | if name is None: |
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| 87 | name = 'Unknown' |
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| 88 | |
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| 89 | print('# %s' % name) |
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| 90 | if err == 0 and out_string.find('+proj=') > -1: |
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| 91 | print('<%s> %s <>' % (str(code), out_string)) |
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| 92 | else: |
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| 93 | print('# Unable to translate coordinate system EPSG:%d into PROJ.4 format.' % code) |
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| 94 | print('#') |
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| 95 | |
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| 96 | if output_format == '-postgis': |
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| 97 | name = prj_srs.GetAttrValue('PROJCS') |
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| 98 | if name is None: |
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| 99 | name = prj_srs.GetAttrValue('GEOGCS') |
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| 100 | |
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| 101 | try: |
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| 102 | proj4text = prj_srs.ExportToProj4() |
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| 103 | except: |
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| 104 | err = 1 |
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| 105 | wkt = prj_srs.ExportToWkt() |
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| 106 | |
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| 107 | print('---') |
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| 108 | print('--- EPSG %d : %s' % (code, name)) |
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| 109 | print('---') |
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| 110 | |
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| 111 | if err: |
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| 112 | print('-- (unable to translate)') |
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| 113 | else: |
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| 114 | wkt = gdal.EscapeString(wkt,scheme=gdal.CPLES_SQL) |
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| 115 | proj4text = gdal.EscapeString(proj4text,scheme=gdal.CPLES_SQL) |
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| 116 | print('INSERT INTO "spatial_ref_sys" ("srid","auth_name","auth_srid","srtext","proj4text") VALUES (%s,\'EPSG\',%s,\'%s\',\'%s\');' % \ |
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| 117 | (str(code),str(code),wkt,proj4text)) |
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| 118 | |
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| 119 | # ============================================================================= |
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| 120 | |
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| 121 | if __name__ == '__main__': |
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| 122 | |
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| 123 | start_code = -1 |
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| 124 | end_code = -1 |
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| 125 | list_file = None |
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| 126 | output_format = '-pretty_wkt' |
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| 127 | report_error = 1 |
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| 128 | |
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| 129 | argv = gdal.GeneralCmdLineProcessor( sys.argv ) |
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| 130 | if argv is None: |
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| 131 | sys.exit( 0 ) |
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| 132 | |
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| 133 | # Parse command line arguments. |
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| 134 | |
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| 135 | i = 1 |
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| 136 | while i < len(argv): |
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| 137 | arg = argv[i] |
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| 138 | |
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| 139 | if arg == '-wkt' or arg == '-pretty_wkt' or arg == '-proj4' \ |
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| 140 | or arg == '-postgis' or arg == '-xml': |
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| 141 | output_format = arg |
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| 142 | |
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| 143 | elif arg[:5] == '-skip': |
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| 144 | report_error = 0 |
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| 145 | |
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| 146 | elif arg == '-list' and i < len(argv)-1: |
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| 147 | i = i + 1 |
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| 148 | list_file = argv[i] |
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| 149 | |
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| 150 | elif arg[0] == '-': |
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| 151 | Usage() |
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| 152 | |
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| 153 | elif int(arg) > 0: |
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| 154 | |
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| 155 | if start_code == -1: |
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| 156 | start_code = int(arg) |
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| 157 | end_code = int(arg) |
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| 158 | elif end_code == start_code: |
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| 159 | end_code = int(arg) |
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| 160 | else: |
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| 161 | Usage() |
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| 162 | else: |
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| 163 | Usage() |
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| 164 | |
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| 165 | i = i + 1 |
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| 166 | |
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| 167 | # Output BEGIN transaction for PostGIS |
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| 168 | if output_format == '-postgis': |
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| 169 | print('BEGIN;') |
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| 170 | |
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| 171 | # Do we need to produce a single output definition, or include a |
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| 172 | # dictionary line for each entry? |
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| 173 | |
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| 174 | gen_dict_line = start_code != end_code |
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| 175 | |
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| 176 | # loop over all codes to generate output |
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| 177 | |
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| 178 | prj_srs = osr.SpatialReference() |
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| 179 | |
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| 180 | if start_code != -1: |
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| 181 | for code in range(start_code,end_code+1): |
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| 182 | trHandleCode(code, gen_dict_line, report_error, output_format) |
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| 183 | |
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| 184 | # loop over codes read from list file. |
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| 185 | |
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| 186 | elif list_file is not None: |
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| 187 | |
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| 188 | list_fd = open( list_file ) |
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| 189 | line = list_fd.readline() |
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| 190 | while len(line) > 0: |
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| 191 | try: |
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| 192 | c_offset = line.find(',') |
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| 193 | if c_offset > 0: |
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| 194 | line = line[:c_offset] |
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| 195 | |
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| 196 | code = string.atoi(line) |
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| 197 | except: |
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| 198 | code = -1 |
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| 199 | |
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| 200 | if code != -1: |
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| 201 | trHandleCode(code, gen_dict_line, report_error, output_format) |
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| 202 | |
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| 203 | line = list_fd.readline() |
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| 204 | |
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| 205 | else: |
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| 206 | Usage() |
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| 207 | |
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| 208 | # Output COMMIT transaction for PostGIS |
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| 209 | if output_format == '-postgis': |
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| 210 | print('COMMIT;') |
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| 211 | print('VACUUM ANALYZE spatial_ref_sys;') |
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| 212 | |
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| 213 | |
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