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]) |
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479 | |
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480 | |
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481 | |
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482 | bands = minfo.bands |
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483 | |
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484 | if MemDriver is None: |
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485 | t_fh = Driver.Create( tilename, width, height, bands,bt,CreateOptions) |
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486 | else: |
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487 | t_fh = MemDriver.Create( tilename, width, height, bands,bt,CreateOptions) |
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488 | |
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489 | if t_fh is None: |
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490 | print('Creation failed, terminating gdal_tile.') |
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491 | sys.exit( 1 ) |
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492 | |
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493 | t_fh.SetGeoTransform( geotransform ) |
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494 | if Source_SRS is not None: |
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495 | t_fh.SetProjection( Source_SRS.ExportToWkt()) |
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496 | |
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497 | readX=min(s_fh.RasterXSize,width) |
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498 | readY=min(s_fh.RasterYSize,height) |
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499 | for band in range(1,bands+1): |
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500 | s_band = s_fh.GetRasterBand( band ) |
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501 | t_band = t_fh.GetRasterBand( band ) |
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502 | if minfo.ct is not None: |
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503 | t_band.SetRasterColorTable(minfo.ct) |
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504 | |
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505 | # data = s_band.ReadRaster( offsetX,offsetY,width,height,width,height, t_band.DataType ) |
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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 | |
---|