Autodesk 15606-011408-9330 User Guide - Page 107

GeoTIFF, Header File, Example, CoordSys Earth Projection 3

Page 107 highlights

(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

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Working with Raster Images
|
107
(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 speci-
fying 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