TIFF Tag Reference
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TIFF Tag IrasB Transformation Matrix
| IFD | | Image |
|---|---|---|
| Code | 33920 (hex 0x8480) | |
| Name | IrasB Transformation Matrix | |
| Type | DOUBLE | |
| Count | 17 (possibly 16, but unlikely) | |
| Default | None |
Description
Originally part of Intergraph's GeoTIFF tags, but likely understood by IrasB only.
The first 16 values are to be used to compute DESIGN FILE coordinates from raster coordinates according to the a matrix equation. The 17th value is a units code.