[23] | 1 | #!/usr/bin/env python |
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| 2 | ############################################################################### |
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| 3 | # |
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| 4 | # Purpose: Module for retiling (merging) tiles and building tiled pyramids |
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| 5 | # Author: Christian Meuller, christian.mueller@nvoe.at |
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| 6 | # |
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| 7 | ############################################################################### |
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| 8 | # Copyright (c) 2007, Christian Mueller |
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| 9 | # |
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| 10 | # Permission is hereby granted, free of charge, to any person obtaining a |
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| 11 | # copy of this software and associated documentation files (the "Software"), |
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| 12 | # to deal in the Software without restriction, including without limitation |
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| 13 | # the rights to use, copy, modify, merge, publish, distribute, sublicense, |
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| 14 | # and/or sell copies of the Software, and to permit persons to whom the |
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| 15 | # Software is furnished to do so, subject to the following conditions: |
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| 16 | # |
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| 17 | # The above copyright notice and this permission notice shall be included |
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| 18 | # in all copies or substantial portions of the Software. |
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| 19 | # |
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| 20 | # THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS |
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| 21 | # OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
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| 22 | # FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL |
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| 23 | # THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER |
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| 24 | # LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING |
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| 25 | # FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER |
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| 26 | # DEALINGS IN THE SOFTWARE. |
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| 27 | ############################################################################### |
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| 28 | |
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| 29 | |
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| 30 | try: |
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| 31 | from osgeo import gdal |
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| 32 | from osgeo import ogr |
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| 33 | from osgeo import osr |
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| 34 | from osgeo.gdalconst import * |
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| 35 | except: |
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| 36 | import gdal |
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| 37 | import ogr |
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| 38 | import osr |
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| 39 | from gdalconst import * |
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| 40 | |
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| 41 | import sys |
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| 42 | import os |
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| 43 | import math |
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| 44 | |
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| 45 | class AffineTransformDecorator: |
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| 46 | """ A class providing some usefull methods for affine Transformations """ |
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| 47 | def __init__(self, transform ): |
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| 48 | self.geotransform=transform |
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| 49 | self.scaleX=self.geotransform[1] |
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| 50 | self.scaleY=self.geotransform[5] |
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| 51 | if self.scaleY > 0: |
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| 52 | self.scaleY*=-1 |
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| 53 | self.ulx = self.geotransform[0] |
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| 54 | self.uly = self.geotransform[3] |
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| 55 | |
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| 56 | def pointsFor(self,width,height): |
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| 57 | xlist=[] |
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| 58 | ylist=[] |
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| 59 | w=self.scaleX * width; |
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| 60 | h=self.scaleY * height; |
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| 61 | |
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| 62 | xlist.append(self.ulx) |
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| 63 | ylist.append(self.uly) |
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| 64 | xlist.append(self.ulx+w) |
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| 65 | ylist.append(self.uly) |
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| 66 | xlist.append(self.ulx+w) |
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| 67 | ylist.append(self.uly+h) |
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| 68 | xlist.append(self.ulx) |
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| 69 | ylist.append(self.uly+h) |
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| 70 | return [ xlist, ylist] |
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| 71 | |
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| 72 | |
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| 73 | class DataSetCache: |
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| 74 | """ A class for caching source tiles """ |
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| 75 | def __init__(self ): |
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| 76 | self.cacheSize=8 |
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| 77 | self.queue=[] |
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| 78 | self.dict={} |
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| 79 | def get(self,name ): |
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| 80 | |
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| 81 | if name in self.dict: |
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| 82 | return self.dict[name] |
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| 83 | result = gdal.Open(name) |
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| 84 | if result is None: |
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| 85 | print("Error openenig:",NameError) |
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| 86 | sys.exit(1) |
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| 87 | if len(self.queue)==self.cacheSize: |
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| 88 | toRemove = self.queue.pop(0) |
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| 89 | del self.dict[toRemove] |
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| 90 | self.queue.append(name) |
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| 91 | self.dict[name]=result |
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| 92 | return result |
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| 93 | def __del__(self): |
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| 94 | for name, dataset in self.dict.items(): |
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| 95 | del dataset |
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| 96 | del self.queue |
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| 97 | del self.dict |
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| 98 | |
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| 99 | |
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| 100 | |
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| 101 | class tile_info: |
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| 102 | """ A class holding info how to tile """ |
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| 103 | def __init__(self,xsize,ysize,tileWidth,tileHeight): |
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| 104 | self.tileWidth=tileWidth |
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| 105 | self.tileHeight=tileHeight |
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| 106 | self.countTilesX= xsize / tileWidth |
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| 107 | self.countTilesY= ysize / tileHeight |
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| 108 | self.lastTileWidth = xsize - self.countTilesX * tileWidth |
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| 109 | self.lastTileHeight = ysize - self.countTilesY * tileHeight |
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| 110 | |
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| 111 | if (self.lastTileWidth > 0 ): |
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| 112 | self.countTilesX=self.countTilesX+1 |
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| 113 | else: |
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| 114 | self.lastTileWidth=tileWidth |
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| 115 | |
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| 116 | if (self.lastTileHeight > 0 ): |
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| 117 | self.countTilesY=self.countTilesY+1 |
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| 118 | else: |
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| 119 | self.lastTileHeight=tileHeight |
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| 120 | |
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| 121 | |
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| 122 | |
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| 123 | def report( self ): |
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| 124 | print('tileWidth %d' % self.tileWidth) |
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| 125 | print('tileHeight %d' % self.tileHeight) |
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| 126 | print('countTilesX: %d' % self.countTilesX) |
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| 127 | print('countTilesY: %d' % self.countTilesY) |
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| 128 | print('lastTileWidth: %d' % self.lastTileWidth) |
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| 129 | print('lastTileHeight: %d' % self.lastTileHeight) |
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| 130 | |
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| 131 | |
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| 132 | |
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| 133 | class mosaic_info: |
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| 134 | """A class holding information about a GDAL file or a GDAL fileset""" |
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| 135 | |
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| 136 | def __init__(self, filename,inputDS ): |
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| 137 | """ |
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| 138 | Initialize mosaic_info from filename |
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| 139 | |
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| 140 | filename -- Name of file to read. |
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| 141 | |
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| 142 | """ |
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| 143 | self.TempDriver=gdal.GetDriverByName("MEM") |
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| 144 | self.filename = filename |
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| 145 | self.cache = DataSetCache() |
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| 146 | self.ogrTileIndexDS = inputDS |
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| 147 | |
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| 148 | self.ogrTileIndexDS.GetLayer().ResetReading() |
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| 149 | feature = self.ogrTileIndexDS.GetLayer().GetNextFeature() |
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| 150 | imgLocation = feature.GetField(0) |
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| 151 | |
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| 152 | fhInputTile = self.cache.get(imgLocation) |
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| 153 | |
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| 154 | self.bands = fhInputTile.RasterCount |
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| 155 | self.band_type = fhInputTile.GetRasterBand(1).DataType |
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| 156 | self.projection = fhInputTile.GetProjection() |
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| 157 | |
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| 158 | |
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| 159 | dec = AffineTransformDecorator(fhInputTile.GetGeoTransform()) |
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| 160 | self.scaleX=dec.scaleX |
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| 161 | self.scaleY=dec.scaleY |
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| 162 | ct = fhInputTile.GetRasterBand(1).GetRasterColorTable() |
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| 163 | if ct is not None: |
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| 164 | self.ct = ct.Clone() |
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| 165 | else: |
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| 166 | self.ct = None |
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| 167 | |
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| 168 | extent = self.ogrTileIndexDS.GetLayer().GetExtent() |
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| 169 | self.ulx = extent[0]; |
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| 170 | self.uly = extent[3] |
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| 171 | self.lrx = extent[1] |
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| 172 | self.lry = extent[2] |
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| 173 | |
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| 174 | self.xsize = int(round((self.lrx-self.ulx) / self.scaleX)) |
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| 175 | self.ysize = abs(int(round((self.uly-self.lry) / self.scaleY))) |
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| 176 | |
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| 177 | |
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| 178 | def __del__(self): |
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| 179 | del self.cache |
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| 180 | del self.ogrTileIndexDS |
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| 181 | |
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| 182 | def getDataSet(self,minx,miny,maxx,maxy): |
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| 183 | |
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| 184 | self.ogrTileIndexDS.GetLayer().ResetReading() |
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| 185 | self.ogrTileIndexDS.GetLayer().SetSpatialFilterRect(minx,miny,maxx,maxy) |
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| 186 | features = [] |
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| 187 | envelope = None |
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| 188 | while True: |
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| 189 | feature = self.ogrTileIndexDS.GetLayer().GetNextFeature(); |
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| 190 | if feature is None: |
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| 191 | break |
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| 192 | features.append(feature) |
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| 193 | if envelope is None: |
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| 194 | envelope=feature.GetGeometryRef().GetEnvelope() |
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| 195 | else: |
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| 196 | featureEnv = feature.GetGeometryRef().GetEnvelope() |
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| 197 | envelope= ( min(featureEnv[0],envelope[0]),max(featureEnv[1],envelope[1]), |
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| 198 | min(featureEnv[2],envelope[2]),max(featureEnv[3],envelope[3])) |
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| 199 | |
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| 200 | if envelope is None: |
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| 201 | return None |
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| 202 | |
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| 203 | #enlarge to query rect if necessairy |
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| 204 | envelope= ( min(minx,envelope[0]),max(maxx,envelope[1]), |
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| 205 | min(miny,envelope[2]),max(maxy,envelope[3])) |
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| 206 | |
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| 207 | |
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| 208 | self.ogrTileIndexDS.GetLayer().SetSpatialFilter(None) |
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| 209 | |
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| 210 | # merge tiles |
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| 211 | |
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| 212 | |
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| 213 | resultSizeX =int(math.ceil(((maxx-minx) / self.scaleX ))) |
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| 214 | resultSizeY =int(math.ceil(((miny-maxy) / self.scaleY ))) |
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| 215 | |
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| 216 | resultDS = self.TempDriver.Create( "TEMP", resultSizeX, resultSizeY, self.bands,self.band_type,[]) |
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| 217 | resultDS.SetGeoTransform( [minx,self.scaleX,0,maxy,0,self.scaleY] ) |
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| 218 | |
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| 219 | |
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| 220 | for feature in features: |
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| 221 | featureName = feature.GetField(0) |
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| 222 | sourceDS=self.cache.get(featureName) |
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| 223 | dec = AffineTransformDecorator(sourceDS.GetGeoTransform()) |
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| 224 | #calculate read and write offsets |
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| 225 | readOffsetX =int(round((minx-dec.ulx) / self.scaleX)) |
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| 226 | readOffsetY =int(round((maxy-dec.uly) / self.scaleY)) |
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| 227 | writeOffsetX=0 |
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| 228 | if readOffsetX<0: |
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| 229 | writeOffsetX=readOffsetX*-1; |
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| 230 | readOffsetX=0 |
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| 231 | writeOffsetY=0 |
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| 232 | if readOffsetY<0: |
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| 233 | writeOffsetY=readOffsetY*-1; |
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| 234 | readOffsetY=0 |
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| 235 | #calculate read and write dimensions |
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| 236 | readX=min(resultSizeX,sourceDS.RasterXSize-readOffsetX,resultSizeX-writeOffsetX) |
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| 237 | if readX<=0: |
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| 238 | continue |
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| 239 | readY=min(resultSizeY,sourceDS.RasterYSize-readOffsetY,resultSizeY-writeOffsetY) |
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| 240 | if readY<=0: |
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| 241 | continue |
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| 242 | |
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| 243 | # print "READ",readOffsetX,readOffsetY,readX,readY |
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| 244 | |
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| 245 | for bandNr in range(1,self.bands+1): |
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| 246 | s_band = sourceDS.GetRasterBand( bandNr ) |
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| 247 | t_band = resultDS.GetRasterBand( bandNr ) |
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| 248 | if self.ct is not None: |
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| 249 | t_band.SetRasterColorTable(self.ct) |
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| 250 | data = s_band.ReadRaster( readOffsetX,readOffsetY,readX,readY, readX,readY, self.band_type ) |
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| 251 | t_band.WriteRaster(writeOffsetX,writeOffsetY,readX,readY,data ) |
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| 252 | |
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| 253 | return resultDS |
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| 254 | |
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| 255 | def closeDataSet(self, memDS): |
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| 256 | del memDS |
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| 257 | #self.TempDriver.Delete("TEMP") |
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| 258 | |
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| 259 | |
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| 260 | def report( self ): |
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| 261 | print('Filename: '+ self.filename) |
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| 262 | print('File Size: %dx%dx%d' \ |
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| 263 | % (self.xsize, self.ysize, self.bands)) |
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| 264 | print('Pixel Size: %f x %f' \ |
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| 265 | % (self.scaleX,self.scaleY)) |
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| 266 | print('UL:(%f,%f) LR:(%f,%f)' \ |
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| 267 | % (self.ulx,self.uly,self.lrx,self.lry)) |
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| 268 | |
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| 269 | |
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| 270 | def getTileIndexFromFiles( inputTiles, driverTyp): |
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| 271 | |
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| 272 | if Verbose: |
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| 273 | print("Building internal Index for %d tile(s) ..." % len(inputTiles), end=' ') |
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| 274 | |
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| 275 | ogrTileIndexDS = createTileIndex("TileIndex",TileIndexFieldName,None,driverTyp); |
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| 276 | for inputTile in inputTiles: |
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| 277 | |
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| 278 | fhInputTile = gdal.Open(inputTile) |
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| 279 | if fhInputTile is None: |
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| 280 | return None |
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| 281 | |
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| 282 | dec = AffineTransformDecorator(fhInputTile.GetGeoTransform()) |
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| 283 | points = dec.pointsFor(fhInputTile.RasterXSize, fhInputTile.RasterYSize) |
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| 284 | |
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| 285 | addFeature(ogrTileIndexDS,inputTile,points[0],points[1]) |
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| 286 | del fhInputTile |
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| 287 | |
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| 288 | if Verbose: |
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| 289 | print("finished") |
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| 290 | #ogrTileIndexDS.GetLayer().SyncToDisk() |
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| 291 | return ogrTileIndexDS |
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| 292 | |
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| 293 | |
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| 294 | |
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| 295 | |
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| 296 | def getTargetDir (level = -1): |
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| 297 | if level==-1: |
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| 298 | return TargetDir |
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| 299 | else: |
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| 300 | return TargetDir+str(level)+os.sep |
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| 301 | |
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| 302 | |
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| 303 | |
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| 304 | |
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| 305 | def tileImage(minfo, ti ): |
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| 306 | """ |
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| 307 | |
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| 308 | Tile image in mosaicinfo minfo based on tileinfo ti |
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| 309 | |
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| 310 | returns list of created tiles |
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| 311 | |
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| 312 | """ |
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| 313 | |
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| 314 | |
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| 315 | OGRDS=createTileIndex("TileResult_0", TileIndexFieldName, Source_SRS,TileIndexDriverTyp) |
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| 316 | |
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| 317 | |
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| 318 | yRange = list(range(1,ti.countTilesY+1)) |
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| 319 | xRange = list(range(1,ti.countTilesX+1)) |
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| 320 | |
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| 321 | for yIndex in yRange: |
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| 322 | for xIndex in xRange: |
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| 323 | offsetY=(yIndex-1)* ti.tileHeight |
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| 324 | offsetX=(xIndex-1)* ti.tileWidth |
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| 325 | if yIndex==ti.countTilesY: |
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| 326 | height=ti.lastTileHeight |
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| 327 | else: |
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| 328 | height=ti.tileHeight |
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| 329 | |
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| 330 | if xIndex==ti.countTilesX: |
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| 331 | width=ti.lastTileWidth |
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| 332 | else: |
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| 333 | width=ti.tileWidth |
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| 334 | tilename=getTileName(minfo,ti, xIndex, yIndex) |
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| 335 | createTile(minfo, offsetX, offsetY, width, height,tilename,OGRDS) |
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| 336 | |
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| 337 | |
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| 338 | if TileIndexName is not None: |
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| 339 | shapeName=getTargetDir()+TileIndexName |
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| 340 | copyTileIndexToDisk(OGRDS,shapeName) |
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| 341 | |
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| 342 | if CsvFileName is not None: |
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| 343 | csvName=getTargetDir()+CsvFileName |
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| 344 | copyTileIndexToCSV(OGRDS,csvName) |
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| 345 | |
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| 346 | |
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| 347 | return OGRDS |
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| 348 | |
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| 349 | def copyTileIndexToDisk(OGRDS, fileName): |
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| 350 | SHAPEDS = createTileIndex(fileName, TileIndexFieldName, OGRDS.GetLayer().GetSpatialRef(), "ESRI Shapefile") |
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| 351 | OGRDS.GetLayer().ResetReading() |
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| 352 | while True: |
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| 353 | feature = OGRDS.GetLayer().GetNextFeature() |
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| 354 | if feature is None: |
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| 355 | break |
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| 356 | newFeature = feature.Clone() |
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| 357 | basename = os.path.basename(feature.GetField(0)) |
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| 358 | newFeature.SetField(0,basename) |
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| 359 | SHAPEDS.GetLayer().CreateFeature(newFeature) |
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| 360 | closeTileIndex(SHAPEDS) |
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| 361 | |
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| 362 | def copyTileIndexToCSV(OGRDS, fileName): |
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| 363 | csvfile = open(fileName, 'w') |
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| 364 | OGRDS.GetLayer().ResetReading() |
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| 365 | while True: |
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| 366 | feature = OGRDS.GetLayer().GetNextFeature() |
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| 367 | if feature is None: |
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| 368 | break |
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| 369 | basename = os.path.basename(feature.GetField(0)) |
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| 370 | csvfile.write(basename); |
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| 371 | geom = feature.GetGeometryRef() |
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| 372 | coords = geom.GetEnvelope(); |
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| 373 | |
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| 374 | for i in range(len(coords)): |
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| 375 | csvfile.write(CsvDelimiter) |
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| 376 | csvfile.write("%f" % coords[i]) |
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| 377 | csvfile.write("\n"); |
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| 378 | |
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| 379 | csvfile.close() |
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| 380 | |
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| 381 | |
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| 382 | |
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| 383 | def createPyramidTile(levelMosaicInfo, offsetX, offsetY, width, height,tileName,OGRDS): |
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| 384 | |
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| 385 | sx= levelMosaicInfo.scaleX*2 |
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| 386 | sy= levelMosaicInfo.scaleY*2 |
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| 387 | |
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| 388 | dec = AffineTransformDecorator([levelMosaicInfo.ulx+offsetX*sx,sx,0, |
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| 389 | levelMosaicInfo.uly+offsetY*sy,0,sy]) |
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| 390 | |
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| 391 | |
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| 392 | |
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| 393 | s_fh = levelMosaicInfo.getDataSet(dec.ulx,dec.uly+height*dec.scaleY, |
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| 394 | dec.ulx+width*dec.scaleX,dec.uly) |
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| 395 | if s_fh is None: |
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| 396 | return |
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| 397 | |
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| 398 | |
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| 399 | if OGRDS is not None: |
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| 400 | points = dec.pointsFor(width, height) |
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| 401 | addFeature(OGRDS, tileName, points[0], points[1]) |
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| 402 | |
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| 403 | |
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| 404 | if BandType is None: |
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| 405 | bt=levelMosaicInfo.band_type |
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| 406 | else: |
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| 407 | bt=BandType |
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| 408 | |
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| 409 | geotransform = [dec.ulx, dec.scaleX, 0,dec.uly,0,dec.scaleY] |
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| 410 | |
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| 411 | |
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| 412 | bands = levelMosaicInfo.bands |
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| 413 | |
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| 414 | if MemDriver is None: |
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| 415 | t_fh = Driver.Create( tileName, width, height, bands,bt,CreateOptions) |
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| 416 | else: |
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| 417 | t_fh = MemDriver.Create( tileName, width, height, bands,bt,CreateOptions) |
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| 418 | |
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| 419 | if t_fh is None: |
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| 420 | print('Creation failed, terminating gdal_tile.') |
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| 421 | sys.exit( 1 ) |
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| 422 | |
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| 423 | |
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| 424 | t_fh.SetGeoTransform( geotransform ) |
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| 425 | t_fh.SetProjection( levelMosaicInfo.projection) |
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| 426 | if levelMosaicInfo.ct is not None: |
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| 427 | for band in range(1,bands+1): |
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| 428 | t_band = t_fh.GetRasterBand( band ) |
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| 429 | t_band.SetRasterColorTable(levelMosaicInfo.ct) |
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| 430 | |
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| 431 | res = gdal.ReprojectImage(s_fh,t_fh,None,None,ResamplingMethod) |
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| 432 | if res!=0: |
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| 433 | print("Reprojection failed for %s, error %d" % (tileName,res)) |
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| 434 | sys.exit( 1 ) |
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| 435 | |
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| 436 | |
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| 437 | levelMosaicInfo.closeDataSet(s_fh); |
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| 438 | |
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| 439 | if MemDriver is not None: |
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| 440 | tt_fh = Driver.CreateCopy( tileName, t_fh, 0, CreateOptions ) |
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| 441 | |
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| 442 | if Verbose: |
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| 443 | print(tileName + " : " + str(offsetX)+"|"+str(offsetY)+"-->"+str(width)+"-"+str(height)) |
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| 444 | |
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| 445 | |
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| 446 | |
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| 447 | |
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| 448 | def createTile( minfo, offsetX,offsetY,width,height, tilename,OGRDS): |
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| 449 | """ |
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| 450 | |
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| 451 | Create tile |
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| 452 | return name of created tile |
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| 453 | |
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| 454 | """ |
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| 455 | |
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| 456 | if BandType is None: |
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| 457 | bt=minfo.band_type |
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| 458 | else: |
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| 459 | bt=BandType |
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| 460 | |
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| 461 | |
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| 462 | dec = AffineTransformDecorator([minfo.ulx,minfo.scaleX,0,minfo.uly,0,minfo.scaleY]) |
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| 463 | |
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| 464 | |
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| 465 | s_fh = minfo.getDataSet(dec.ulx+offsetX*dec.scaleX,dec.uly+offsetY*dec.scaleY+height*dec.scaleY, |
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| 466 | dec.ulx+offsetX*dec.scaleX+width*dec.scaleX, |
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| 467 | dec.uly+offsetY*dec.scaleY) |
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| 468 | if s_fh is None: |
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| 469 | return; |
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| 470 | |
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| 471 | |
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| 472 | geotransform = [dec.ulx+offsetX*dec.scaleX, dec.scaleX, 0, |
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| 473 | dec.uly+offsetY*dec.scaleY, 0,dec.scaleY] |
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| 474 | |
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| 475 | if OGRDS is not None: |
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| 476 | dec2 = AffineTransformDecorator(geotransform) |
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| 477 | points = dec2.pointsFor(width, height) |
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| 478 | addFeature(OGRDS, tilename, points[0], points[1]) |
---|
| 479 | |
---|
| 480 | |
---|
| 481 | |
---|
| 482 | bands = minfo.bands |
---|
| 483 | |
---|
| 484 | if MemDriver is None: |
---|
| 485 | t_fh = Driver.Create( tilename, width, height, bands,bt,CreateOptions) |
---|
| 486 | else: |
---|
| 487 | t_fh = MemDriver.Create( tilename, width, height, bands,bt,CreateOptions) |
---|
| 488 | |
---|
| 489 | if t_fh is None: |
---|
| 490 | print('Creation failed, terminating gdal_tile.') |
---|
| 491 | sys.exit( 1 ) |
---|
| 492 | |
---|
| 493 | t_fh.SetGeoTransform( geotransform ) |
---|
| 494 | if Source_SRS is not None: |
---|
| 495 | t_fh.SetProjection( Source_SRS.ExportToWkt()) |
---|
| 496 | |
---|
| 497 | readX=min(s_fh.RasterXSize,width) |
---|
| 498 | readY=min(s_fh.RasterYSize,height) |
---|
| 499 | for band in range(1,bands+1): |
---|
| 500 | s_band = s_fh.GetRasterBand( band ) |
---|
| 501 | t_band = t_fh.GetRasterBand( band ) |
---|
| 502 | if minfo.ct is not None: |
---|
| 503 | t_band.SetRasterColorTable(minfo.ct) |
---|
| 504 | |
---|
| 505 | # data = s_band.ReadRaster( offsetX,offsetY,width,height,width,height, t_band.DataType ) |
---|
| 506 | data = s_band.ReadRaster( 0,0,readX,readY,readX,readY, t_band.DataType ) |
---|
| 507 | t_band.WriteRaster( 0,0,readX,readY, data,readX,readY, t_band.DataType ) |
---|
| 508 | |
---|
| 509 | minfo.closeDataSet(s_fh); |
---|
| 510 | |
---|
| 511 | if MemDriver is not None: |
---|
| 512 | tt_fh = Driver.CreateCopy( tilename, t_fh, 0, CreateOptions ) |
---|
| 513 | |
---|
| 514 | if Verbose: |
---|
| 515 | print(tilename + " : " + str(offsetX)+"|"+str(offsetY)+"-->"+str(width)+"-"+str(height)) |
---|
| 516 | |
---|
| 517 | |
---|
| 518 | |
---|
| 519 | def createTileIndex(dsName,fieldName,srs,driverName): |
---|
| 520 | |
---|
| 521 | OGRDriver = ogr.GetDriverByName(driverName); |
---|
| 522 | if OGRDriver is None: |
---|
| 523 | print('ESRI Shapefile driver not found') |
---|
| 524 | sys.exit( 1 ) |
---|
| 525 | |
---|
| 526 | OGRDataSource=OGRDriver.Open(dsName) |
---|
| 527 | if OGRDataSource is not None: |
---|
| 528 | OGRDataSource.Destroy() |
---|
| 529 | OGRDriver.DeleteDataSource(dsName) |
---|
| 530 | if Verbose: |
---|
| 531 | print('truncating index '+ dsName) |
---|
| 532 | |
---|
| 533 | OGRDataSource=OGRDriver.CreateDataSource(dsName) |
---|
| 534 | if OGRDataSource is None: |
---|
| 535 | print('Could not open datasource '+dsName) |
---|
| 536 | sys.exit( 1 ) |
---|
| 537 | |
---|
| 538 | OGRLayer = OGRDataSource.CreateLayer("index", srs, ogr.wkbPolygon) |
---|
| 539 | if OGRLayer is None: |
---|
| 540 | print('Could not create Layer') |
---|
| 541 | sys.exit( 1 ) |
---|
| 542 | |
---|
| 543 | OGRFieldDefn = ogr.FieldDefn(fieldName,ogr.OFTString) |
---|
| 544 | if OGRFieldDefn is None: |
---|
| 545 | print('Could not create FieldDefn for '+fieldName) |
---|
| 546 | sys.exit( 1 ) |
---|
| 547 | |
---|
| 548 | OGRFieldDefn.SetWidth(256) |
---|
| 549 | if OGRLayer.CreateField(OGRFieldDefn) != 0: |
---|
| 550 | print('Could not create Field for '+fieldName) |
---|
| 551 | sys.exit( 1 ) |
---|
| 552 | |
---|
| 553 | return OGRDataSource |
---|
| 554 | |
---|
| 555 | def addFeature(OGRDataSource,location,xlist,ylist): |
---|
| 556 | |
---|
| 557 | OGRLayer=OGRDataSource.GetLayer(); |
---|
| 558 | OGRFeature = ogr.Feature(OGRLayer.GetLayerDefn()) |
---|
| 559 | if OGRFeature is None: |
---|
| 560 | print('Could not create Feature') |
---|
| 561 | sys.exit( 1 ) |
---|
| 562 | |
---|
| 563 | OGRFeature.SetField(TileIndexFieldName,location); |
---|
| 564 | wkt = 'POLYGON ((%f %f,%f %f,%f %f,%f %f,%f %f ))' % (xlist[0],ylist[0], |
---|
| 565 | xlist[1],ylist[1],xlist[2],ylist[2],xlist[3],ylist[3],xlist[0],ylist[0]) |
---|
| 566 | OGRGeometry=ogr.CreateGeometryFromWkt(wkt,OGRLayer.GetSpatialRef()) |
---|
| 567 | if (OGRGeometry is None): |
---|
| 568 | print('Could not create Geometry') |
---|
| 569 | sys.exit( 1 ) |
---|
| 570 | |
---|
| 571 | OGRFeature.SetGeometryDirectly(OGRGeometry) |
---|
| 572 | |
---|
| 573 | OGRLayer.CreateFeature(OGRFeature) |
---|
| 574 | OGRFeature.Destroy() |
---|
| 575 | |
---|
| 576 | def closeTileIndex(OGRDataSource): |
---|
| 577 | OGRDataSource.Destroy() |
---|
| 578 | |
---|
| 579 | |
---|
| 580 | def buildPyramid(minfo,createdTileIndexDS,tileWidth, tileHeight): |
---|
| 581 | |
---|
| 582 | inputDS=createdTileIndexDS |
---|
| 583 | for level in range(1,Levels+1): |
---|
| 584 | levelMosaicInfo = mosaic_info(minfo.filename,inputDS) |
---|
| 585 | levelOutputTileInfo = tile_info(levelMosaicInfo.xsize/2,levelMosaicInfo.ysize/2,tileWidth,tileHeight) |
---|
| 586 | inputDS=buildPyramidLevel(levelMosaicInfo,levelOutputTileInfo,level) |
---|
| 587 | |
---|
| 588 | |
---|
| 589 | def buildPyramidLevel(levelMosaicInfo,levelOutputTileInfo, level): |
---|
| 590 | yRange = list(range(1,levelOutputTileInfo.countTilesY+1)) |
---|
| 591 | xRange = list(range(1,levelOutputTileInfo.countTilesX+1)) |
---|
| 592 | |
---|
| 593 | OGRDS=createTileIndex("TileResult_"+str(level), TileIndexFieldName, Source_SRS,TileIndexDriverTyp) |
---|
| 594 | |
---|
| 595 | for yIndex in yRange: |
---|
| 596 | for xIndex in xRange: |
---|
| 597 | offsetY=(yIndex-1)* levelOutputTileInfo.tileHeight |
---|
| 598 | offsetX=(xIndex-1)* levelOutputTileInfo.tileWidth |
---|
| 599 | if yIndex==levelOutputTileInfo.countTilesY: |
---|
| 600 | height=levelOutputTileInfo.lastTileHeight |
---|
| 601 | else: |
---|
| 602 | height=levelOutputTileInfo.tileHeight |
---|
| 603 | |
---|
| 604 | if xIndex==levelOutputTileInfo.countTilesX: |
---|
| 605 | width=levelOutputTileInfo.lastTileWidth |
---|
| 606 | else: |
---|
| 607 | width=levelOutputTileInfo.tileWidth |
---|
| 608 | tilename=getTileName(levelMosaicInfo,levelOutputTileInfo, xIndex, yIndex,level) |
---|
| 609 | createPyramidTile(levelMosaicInfo, offsetX, offsetY, width, height,tilename,OGRDS) |
---|
| 610 | |
---|
| 611 | |
---|
| 612 | if TileIndexName is not None: |
---|
| 613 | shapeName=getTargetDir(level)+TileIndexName |
---|
| 614 | copyTileIndexToDisk(OGRDS,shapeName) |
---|
| 615 | |
---|
| 616 | if CsvFileName is not None: |
---|
| 617 | csvName=getTargetDir(level)+CsvFileName |
---|
| 618 | copyTileIndexToCSV(OGRDS,csvName) |
---|
| 619 | |
---|
| 620 | |
---|
| 621 | return OGRDS |
---|
| 622 | |
---|
| 623 | def getTileName(minfo,ti,xIndex,yIndex,level = -1): |
---|
| 624 | """ |
---|
| 625 | creates the tile file name |
---|
| 626 | """ |
---|
| 627 | max = ti.countTilesX |
---|
| 628 | if (ti.countTilesY > max): |
---|
| 629 | max=ti.countTilesY |
---|
| 630 | countDigits= len(str(max)) |
---|
| 631 | parts=os.path.splitext(os.path.basename(minfo.filename)) |
---|
| 632 | if parts[0][0]=="@" : #remove possible leading "@" |
---|
| 633 | parts = ( parts[0][1:len(parts[0])], parts[1]) |
---|
| 634 | |
---|
| 635 | if Extension is None: |
---|
| 636 | format=getTargetDir(level)+parts[0]+"_%0"+str(countDigits)+"i"+"_%0"+str(countDigits)+"i"+parts[1] |
---|
| 637 | else: |
---|
| 638 | format=getTargetDir(level)+parts[0]+"_%0"+str(countDigits)+"i"+"_%0"+str(countDigits)+"i"+"."+Extension |
---|
| 639 | return format % (yIndex,xIndex) |
---|
| 640 | |
---|
| 641 | def UsageFormat(): |
---|
| 642 | print('Valid formats:') |
---|
| 643 | count = gdal.GetDriverCount() |
---|
| 644 | for index in range(count): |
---|
| 645 | driver= gdal.GetDriver(index) |
---|
| 646 | print(driver.ShortName) |
---|
| 647 | |
---|
| 648 | # ============================================================================= |
---|
| 649 | def Usage(): |
---|
| 650 | print('Usage: gdal_retile.py ') |
---|
| 651 | print(' [-v] [-co NAME=VALUE]* [-of out_format]') |
---|
| 652 | print(' [-ps pixelWidth pixelHeight]') |
---|
| 653 | print(' [-ot {Byte/Int16/UInt16/UInt32/Int32/Float32/Float64/') |
---|
| 654 | print(' CInt16/CInt32/CFloat32/CFloat64}]') |
---|
| 655 | print(' [ -tileIndex tileIndexName [-tileIndexField fieldName]]') |
---|
| 656 | print(' [ -csv fileName [-csvDelim delimiter]]') |
---|
| 657 | print(' [-s_srs srs_def] [-pyramidOnly] -levels numberoflevels') |
---|
| 658 | print(' [-r {near/bilinear/cubic/cubicspline/lanczos}]') |
---|
| 659 | print(' -targetDir TileDirectory input_files') |
---|
| 660 | |
---|
| 661 | # ============================================================================= |
---|
| 662 | |
---|
| 663 | |
---|
| 664 | # ============================================================================= |
---|
| 665 | # |
---|
| 666 | # Program mainline. |
---|
| 667 | # |
---|
| 668 | |
---|
| 669 | def main(args): |
---|
| 670 | |
---|
| 671 | global Verbose |
---|
| 672 | global CreateOptions |
---|
| 673 | global Names |
---|
| 674 | global TileWidth |
---|
| 675 | global TileHeight |
---|
| 676 | global Format |
---|
| 677 | global BandType |
---|
| 678 | global Driver |
---|
| 679 | global Extension |
---|
| 680 | global MemDriver |
---|
| 681 | global TileIndexFieldName |
---|
| 682 | global TileIndexName |
---|
| 683 | global CsvDelimiter |
---|
| 684 | global CsvFileName |
---|
| 685 | |
---|
| 686 | global TileIndexDriverTyp |
---|
| 687 | global Source_SRS |
---|
| 688 | global TargetDir |
---|
| 689 | global ResamplingMethod |
---|
| 690 | global Levels |
---|
| 691 | global PyramidOnly |
---|
| 692 | |
---|
| 693 | gdal.AllRegister() |
---|
| 694 | |
---|
| 695 | argv = gdal.GeneralCmdLineProcessor( args ) |
---|
| 696 | if argv is None: |
---|
| 697 | return 1 |
---|
| 698 | |
---|
| 699 | # Parse command line arguments. |
---|
| 700 | i = 1 |
---|
| 701 | while i < len(argv): |
---|
| 702 | arg = argv[i] |
---|
| 703 | |
---|
| 704 | if arg == '-of': |
---|
| 705 | i+=1 |
---|
| 706 | Format = argv[i] |
---|
| 707 | elif arg == '-ot': |
---|
| 708 | i+=1 |
---|
| 709 | BandType = gdal.GetDataTypeByName( argv[i] ) |
---|
| 710 | if BandType == gdal.GDT_Unknown: |
---|
| 711 | print('Unknown GDAL data type: ', argv[i]) |
---|
| 712 | return 1 |
---|
| 713 | elif arg == '-co': |
---|
| 714 | i+=1 |
---|
| 715 | CreateOptions.append( argv[i] ) |
---|
| 716 | |
---|
| 717 | |
---|
| 718 | elif arg == '-v': |
---|
| 719 | Verbose = True |
---|
| 720 | |
---|
| 721 | elif arg == '-targetDir': |
---|
| 722 | i+=1 |
---|
| 723 | TargetDir=argv[i] |
---|
| 724 | |
---|
| 725 | if os.path.exists(TargetDir)==False: |
---|
| 726 | print("TargetDir " + TargetDir + " does not exist") |
---|
| 727 | return 1 |
---|
| 728 | if TargetDir[len(TargetDir)-1:] != os.sep: |
---|
| 729 | TargetDir = TargetDir+os.sep |
---|
| 730 | |
---|
| 731 | elif arg == '-ps': |
---|
| 732 | i+=1 |
---|
| 733 | TileWidth=int(argv[i]) |
---|
| 734 | i+=1 |
---|
| 735 | TileHeight=int(argv[i]) |
---|
| 736 | |
---|
| 737 | elif arg == '-r': |
---|
| 738 | i+=1 |
---|
| 739 | ResamplingMethodString=argv[i] |
---|
| 740 | if ResamplingMethodString=="near": |
---|
| 741 | ResamplingMethod=GRA_NearestNeighbour |
---|
| 742 | elif ResamplingMethodString=="bilinear": |
---|
| 743 | ResamplingMethod=GRA_Bilinear |
---|
| 744 | elif ResamplingMethodString=="cubic": |
---|
| 745 | ResamplingMethod=GRA_Cubic |
---|
| 746 | elif ResamplingMethodString=="cubicspline": |
---|
| 747 | ResamplingMethod=GRA_CubicSpline |
---|
| 748 | elif ResamplingMethodString=="lanczos": |
---|
| 749 | ResamplingMethod=GRA_Lanczos |
---|
| 750 | else: |
---|
| 751 | print("Unknown resampling method:" ,ResamplingMethodString) |
---|
| 752 | return 1 |
---|
| 753 | elif arg == '-levels': |
---|
| 754 | i+=1 |
---|
| 755 | Levels=int(argv[i]) |
---|
| 756 | if Levels<1: |
---|
| 757 | print("Invalid number of levels", Levels) |
---|
| 758 | return 1 |
---|
| 759 | elif arg == '-s_srs': |
---|
| 760 | i+=1 |
---|
| 761 | Source_SRS = osr.SpatialReference() |
---|
| 762 | if Source_SRS.SetFromUserInput( argv[i] ) != 0: |
---|
| 763 | print('invalid -s_srs: ' + argv[i]); |
---|
| 764 | return 1; |
---|
| 765 | |
---|
| 766 | elif arg == "-pyramidOnly": |
---|
| 767 | PyramidOnly=True |
---|
| 768 | elif arg == '-tileIndex': |
---|
| 769 | i+=1 |
---|
| 770 | TileIndexName=argv[i] |
---|
| 771 | parts=os.path.splitext(TileIndexName) |
---|
| 772 | if len(parts[1])==0: |
---|
| 773 | TileIndexName+=".shp" |
---|
| 774 | |
---|
| 775 | elif arg == '-tileIndexField': |
---|
| 776 | i+=1 |
---|
| 777 | TileIndexFieldName=argv[i] |
---|
| 778 | elif arg == '-csv': |
---|
| 779 | i+=1 |
---|
| 780 | CsvFileName=argv[i] |
---|
| 781 | parts=os.path.splitext(CsvFileName) |
---|
| 782 | if len(parts[1])==0: |
---|
| 783 | CsvFileName+=".csv" |
---|
| 784 | elif arg == '-csvDelim': |
---|
| 785 | i+=1 |
---|
| 786 | CsvDelimiter=argv[i] |
---|
| 787 | elif arg[:1] == '-': |
---|
| 788 | print('Unrecognised command option: ', arg) |
---|
| 789 | Usage() |
---|
| 790 | return 1 |
---|
| 791 | |
---|
| 792 | else: |
---|
| 793 | Names.append( arg ) |
---|
| 794 | i+=1 |
---|
| 795 | |
---|
| 796 | if len(Names) == 0: |
---|
| 797 | print('No input files selected.') |
---|
| 798 | Usage() |
---|
| 799 | return 1 |
---|
| 800 | |
---|
| 801 | if (TileWidth==0 or TileHeight==0): |
---|
| 802 | print("Invalid tile dimension %d,%d" % (TileWidth,TileHeight)) |
---|
| 803 | return 1 |
---|
| 804 | |
---|
| 805 | if (TargetDir is None): |
---|
| 806 | print("Missing Directory for Tiles -targetDir") |
---|
| 807 | Usage() |
---|
| 808 | return 1 |
---|
| 809 | |
---|
| 810 | if Levels > 0: #prepare Dirs for pyramid |
---|
| 811 | for levelIndx in range (1,Levels+1): |
---|
| 812 | leveldir=TargetDir+str(levelIndx)+os.sep |
---|
| 813 | if (os.path.exists(leveldir)): |
---|
| 814 | continue |
---|
| 815 | os.mkdir(leveldir) |
---|
| 816 | if (os.path.exists(leveldir)==False): |
---|
| 817 | print("Cannot create level dir:", leveldir) |
---|
| 818 | return 1 |
---|
| 819 | if Verbose : |
---|
| 820 | print("Created level dir: ",leveldir) |
---|
| 821 | |
---|
| 822 | |
---|
| 823 | Driver = gdal.GetDriverByName(Format) |
---|
| 824 | if Driver is None: |
---|
| 825 | print('Format driver %s not found, pick a supported driver.' % Format) |
---|
| 826 | UsageFormat() |
---|
| 827 | return 1 |
---|
| 828 | |
---|
| 829 | |
---|
| 830 | |
---|
| 831 | |
---|
| 832 | DriverMD = Driver.GetMetadata() |
---|
| 833 | Extension=DriverMD.get(DMD_EXTENSION); |
---|
| 834 | if 'DCAP_CREATE' not in DriverMD: |
---|
| 835 | MemDriver=gdal.GetDriverByName("MEM") |
---|
| 836 | |
---|
| 837 | |
---|
| 838 | tileIndexDS=getTileIndexFromFiles(Names,TileIndexDriverTyp) |
---|
| 839 | if tileIndexDS is None: |
---|
| 840 | print("Error building tile index") |
---|
| 841 | return 1; |
---|
| 842 | minfo = mosaic_info(Names[0],tileIndexDS) |
---|
| 843 | ti=tile_info(minfo.xsize,minfo.ysize, TileWidth, TileHeight) |
---|
| 844 | |
---|
| 845 | if Source_SRS is None and len(minfo.projection) > 0 : |
---|
| 846 | Source_SRS = osr.SpatialReference() |
---|
| 847 | if Source_SRS.SetFromUserInput( minfo.projection ) != 0: |
---|
| 848 | print('invalid projection ' + minfo.projection); |
---|
| 849 | return 1 |
---|
| 850 | |
---|
| 851 | if Verbose: |
---|
| 852 | minfo.report() |
---|
| 853 | ti.report() |
---|
| 854 | |
---|
| 855 | |
---|
| 856 | if PyramidOnly==False: |
---|
| 857 | dsCreatedTileIndex = tileImage(minfo,ti) |
---|
| 858 | tileIndexDS.Destroy() |
---|
| 859 | else: |
---|
| 860 | dsCreatedTileIndex=tileIndexDS |
---|
| 861 | |
---|
| 862 | if Levels>0: |
---|
| 863 | buildPyramid(minfo,dsCreatedTileIndex,TileWidth, TileHeight) |
---|
| 864 | |
---|
| 865 | if Verbose: |
---|
| 866 | print("FINISHED") |
---|
| 867 | return 0 |
---|
| 868 | |
---|
| 869 | def initGlobals(): |
---|
| 870 | """ Only used for unit tests """ |
---|
| 871 | global Verbose |
---|
| 872 | global CreateOptions |
---|
| 873 | global Names |
---|
| 874 | global TileWidth |
---|
| 875 | global TileHeight |
---|
| 876 | global Format |
---|
| 877 | global BandType |
---|
| 878 | global Driver |
---|
| 879 | global Extension |
---|
| 880 | global MemDriver |
---|
| 881 | global TileIndexFieldName |
---|
| 882 | global TileIndexName |
---|
| 883 | global TileIndexDriverTyp |
---|
| 884 | global CsvDelimiter |
---|
| 885 | global CsvFileName |
---|
| 886 | global Source_SRS |
---|
| 887 | global TargetDir |
---|
| 888 | global ResamplingMethod |
---|
| 889 | global Levels |
---|
| 890 | global PyramidOnly |
---|
| 891 | |
---|
| 892 | Verbose=False |
---|
| 893 | CreateOptions = [] |
---|
| 894 | Names=[] |
---|
| 895 | TileWidth=256 |
---|
| 896 | TileHeight=256 |
---|
| 897 | Format='GTiff' |
---|
| 898 | BandType = None |
---|
| 899 | Driver=None |
---|
| 900 | Extension=None |
---|
| 901 | MemDriver=None |
---|
| 902 | TileIndexFieldName='location' |
---|
| 903 | TileIndexName=None |
---|
| 904 | TileIndexDriverTyp="Memory" |
---|
| 905 | CsvDelimiter=";" |
---|
| 906 | CsvFileName=None |
---|
| 907 | |
---|
| 908 | Source_SRS=None |
---|
| 909 | TargetDir=None |
---|
| 910 | ResamplingMethod=GRA_NearestNeighbour |
---|
| 911 | Levels=0 |
---|
| 912 | PyramidOnly=False |
---|
| 913 | |
---|
| 914 | |
---|
| 915 | #global vars |
---|
| 916 | Verbose=False |
---|
| 917 | CreateOptions = [] |
---|
| 918 | Names=[] |
---|
| 919 | TileWidth=256 |
---|
| 920 | TileHeight=256 |
---|
| 921 | Format='GTiff' |
---|
| 922 | BandType = None |
---|
| 923 | Driver=None |
---|
| 924 | Extension=None |
---|
| 925 | MemDriver=None |
---|
| 926 | TileIndexFieldName='location' |
---|
| 927 | TileIndexName=None |
---|
| 928 | TileIndexDriverTyp="Memory" |
---|
| 929 | CsvDelimiter=";" |
---|
| 930 | CsvFileName=None |
---|
| 931 | Source_SRS=None |
---|
| 932 | TargetDir=None |
---|
| 933 | ResamplingMethod=GRA_NearestNeighbour |
---|
| 934 | Levels=0 |
---|
| 935 | PyramidOnly=False |
---|
| 936 | |
---|
| 937 | |
---|
| 938 | |
---|
| 939 | if __name__ == '__main__': |
---|
| 940 | sys.exit(main(sys.argv)) |
---|
| 941 | |
---|