Autodesk 15606-011408-9330 User Guide - Page 107
GeoTIFF, Header File, Example, CoordSys Earth Projection 3
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(6144414, 2088370) (0,0) Label "Pt 1" (6144416, 2088370) (1,0) Label "Pt 2" (6144414, 2088370) (0,1) Label "Pt 3" CoordSys Earth Projection 3, 74, "ft", 120.50, 36.50, 38.43, 37.07, 2000000, 500000 Units "ft" RasterStyle 2 74 GeoTIFF A GeoTIFF file is an extended version of the TIFF format, with embedded georeference information inside one or more of its tags. A single file contains both the raster image and its georeference information. Header File A header file is an ASCII text file containing keywords and values for specifying the georeference information of the raster image. This format works only with the GeoSPOT BIL raster image format. The following is an example of a header file: Example ! GIS-GEOSPOT Header File ! ! Image Information ! DELTA_X_ORIGIN 0.0 M DELTA_Y_ORIGIN 0.0 M MAPUNITS METERS ULXMAP 543134.90 M ULYMAP 5283921.00 M XDIM 10.0 M YDIM 10.0 M NCOLS 1269 NROWS 1862 NBANDS 3 ! ! Frame Corner Support ! NW_X_PIXEL 1 NW_Y_PIXEL 11 NE_X_PIXEL 1251 Working with Raster Images | 107