[23] | 1 | #!/usr/bin/env python |
---|
| 2 | #****************************************************************************** |
---|
| 3 | # $Id: gcps2vec.py 18194 2009-12-06 20:07:45Z rouault $ |
---|
| 4 | # |
---|
| 5 | # Project: GDAL |
---|
| 6 | # Purpose: Convert GCPs to a point layer. |
---|
| 7 | # Author: Frank Warmerdam, warmerdam@pobox.com |
---|
| 8 | # |
---|
| 9 | #****************************************************************************** |
---|
| 10 | # Copyright (c) 2005, Frank Warmerdam <warmerdam@pobox.com> |
---|
| 11 | # |
---|
| 12 | # Permission is hereby granted, free of charge, to any person obtaining a |
---|
| 13 | # copy of this software and associated documentation files (the "Software"), |
---|
| 14 | # to deal in the Software without restriction, including without limitation |
---|
| 15 | # the rights to use, copy, modify, merge, publish, distribute, sublicense, |
---|
| 16 | # and/or sell copies of the Software, and to permit persons to whom the |
---|
| 17 | # Software is furnished to do so, subject to the following conditions: |
---|
| 18 | # |
---|
| 19 | # The above copyright notice and this permission notice shall be included |
---|
| 20 | # in all copies or substantial portions of the Software. |
---|
| 21 | # |
---|
| 22 | # THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS |
---|
| 23 | # OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
---|
| 24 | # FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL |
---|
| 25 | # THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER |
---|
| 26 | # LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING |
---|
| 27 | # FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER |
---|
| 28 | # DEALINGS IN THE SOFTWARE. |
---|
| 29 | #****************************************************************************** |
---|
| 30 | # |
---|
| 31 | # $Log$ |
---|
| 32 | # Revision 1.2 2006/03/21 21:54:00 fwarmerdam |
---|
| 33 | # fixup headers |
---|
| 34 | # |
---|
| 35 | # Revision 1.1 2005/02/07 14:36:12 fwarmerdam |
---|
| 36 | # New |
---|
| 37 | # |
---|
| 38 | # |
---|
| 39 | |
---|
| 40 | try: |
---|
| 41 | from osgeo import gdal |
---|
| 42 | from osgeo import ogr |
---|
| 43 | except ImportError: |
---|
| 44 | import gdal |
---|
| 45 | import ogr |
---|
| 46 | |
---|
| 47 | import sys |
---|
| 48 | |
---|
| 49 | def Usage(): |
---|
| 50 | print('Usage: gcp2vec.py [-of <ogr_drivername>] <raster_file> <vector_file>') |
---|
| 51 | sys.exit(1) |
---|
| 52 | |
---|
| 53 | # ============================================================================= |
---|
| 54 | # Mainline |
---|
| 55 | # ============================================================================= |
---|
| 56 | |
---|
| 57 | format = 'GML' |
---|
| 58 | in_file = None |
---|
| 59 | out_file = None |
---|
| 60 | pixel_out = 0 |
---|
| 61 | |
---|
| 62 | gdal.AllRegister() |
---|
| 63 | argv = gdal.GeneralCmdLineProcessor( sys.argv ) |
---|
| 64 | if argv is None: |
---|
| 65 | sys.exit( 0 ) |
---|
| 66 | |
---|
| 67 | # Parse command line arguments. |
---|
| 68 | i = 1 |
---|
| 69 | while i < len(argv): |
---|
| 70 | arg = argv[i] |
---|
| 71 | |
---|
| 72 | if arg == '-of': |
---|
| 73 | format = argv[i] |
---|
| 74 | |
---|
| 75 | if arg == '-p': |
---|
| 76 | pixel_out = 1 |
---|
| 77 | |
---|
| 78 | elif in_file is None: |
---|
| 79 | in_file = argv[i] |
---|
| 80 | |
---|
| 81 | elif out_file is None: |
---|
| 82 | out_file = argv[i] |
---|
| 83 | |
---|
| 84 | else: |
---|
| 85 | Usage() |
---|
| 86 | |
---|
| 87 | i = i + 1 |
---|
| 88 | |
---|
| 89 | if out_file is None: |
---|
| 90 | Usage() |
---|
| 91 | |
---|
| 92 | # ---------------------------------------------------------------------------- |
---|
| 93 | # Open input file, and fetch GCPs. |
---|
| 94 | # ---------------------------------------------------------------------------- |
---|
| 95 | ds = gdal.Open( in_file ) |
---|
| 96 | if ds is None: |
---|
| 97 | print('Unable to open ', filename) |
---|
| 98 | sys.exit(1) |
---|
| 99 | |
---|
| 100 | gcp_srs = ds.GetGCPProjection() |
---|
| 101 | gcps = ds.GetGCPs() |
---|
| 102 | |
---|
| 103 | ds = None |
---|
| 104 | |
---|
| 105 | if gcps is None or len(gcps) == 0: |
---|
| 106 | print('No GCPs on file %s!' % in_file) |
---|
| 107 | sys.exit(1) |
---|
| 108 | |
---|
| 109 | # ---------------------------------------------------------------------------- |
---|
| 110 | # Create output file, and layer. |
---|
| 111 | # ---------------------------------------------------------------------------- |
---|
| 112 | |
---|
| 113 | drv = ogr.GetDriverByName( format ) |
---|
| 114 | if drv is None: |
---|
| 115 | print('No driver named %s available.' % format) |
---|
| 116 | sys.exit(1) |
---|
| 117 | |
---|
| 118 | ds = drv.CreateDataSource( out_file ) |
---|
| 119 | |
---|
| 120 | srs = None |
---|
| 121 | |
---|
| 122 | layer = ds.CreateLayer( 'gcps', srs, geom_type = ogr.wkbPoint25D ) |
---|
| 123 | |
---|
| 124 | if pixel_out == 0: |
---|
| 125 | fd = ogr.FieldDefn( 'Pixel', ogr.OFTReal ) |
---|
| 126 | layer.CreateField( fd ) |
---|
| 127 | |
---|
| 128 | fd = ogr.FieldDefn( 'Line', ogr.OFTReal ) |
---|
| 129 | layer.CreateField( fd ) |
---|
| 130 | else: |
---|
| 131 | fd = ogr.FieldDefn( 'X', ogr.OFTReal ) |
---|
| 132 | layer.CreateField( fd ) |
---|
| 133 | |
---|
| 134 | fd = ogr.FieldDefn( 'Y', ogr.OFTReal ) |
---|
| 135 | layer.CreateField( fd ) |
---|
| 136 | |
---|
| 137 | fd = ogr.FieldDefn( 'Id', ogr.OFTString ) |
---|
| 138 | layer.CreateField( fd ) |
---|
| 139 | |
---|
| 140 | fd = ogr.FieldDefn( 'Info', ogr.OFTString ) |
---|
| 141 | layer.CreateField( fd ) |
---|
| 142 | |
---|
| 143 | # ---------------------------------------------------------------------------- |
---|
| 144 | # Write GCPs. |
---|
| 145 | # ---------------------------------------------------------------------------- |
---|
| 146 | |
---|
| 147 | for gcp in gcps: |
---|
| 148 | |
---|
| 149 | feat = ogr.Feature( layer.GetLayerDefn() ) |
---|
| 150 | |
---|
| 151 | geom = ogr.Geometry( ogr.wkbPoint25D ) |
---|
| 152 | |
---|
| 153 | if pixel_out == 0: |
---|
| 154 | feat.SetField( 'Pixel', gcp.GCPPixel ) |
---|
| 155 | feat.SetField( 'Line', gcp.GCPLine ) |
---|
| 156 | geom.SetPoint( 0, gcp.GCPX, gcp.GCPY, gcp.GCPZ ) |
---|
| 157 | else: |
---|
| 158 | feat.SetField( 'X', gcp.GCPX ) |
---|
| 159 | feat.SetField( 'Y', gcp.GCPY ) |
---|
| 160 | geom.SetPoint( 0, gcp.GCPPixel, gcp.GCPLine ) |
---|
| 161 | |
---|
| 162 | feat.SetField( 'Id', gcp.Id ) |
---|
| 163 | feat.SetField( 'Info', gcp.Info ) |
---|
| 164 | |
---|
| 165 | feat.SetGeometryDirectly( geom ) |
---|
| 166 | layer.CreateFeature( feat ) |
---|
| 167 | |
---|
| 168 | feat = None |
---|
| 169 | ds.Destroy() |
---|
| 170 | |
---|
| 171 | |
---|