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Data Format Identification

UV Tables are now a special subset of GDF files. As any GDF file, they are identified by an integer code stored in variable h%gil%type_gdf (see Table 2) which, for UV Tables must take the value code_gdf_uvt or code_gdf_tuv, depending whether the table is in native order (a visibility being contiguous in memory) or transposed. For simplicity, we have imposed code_gdf_tuv = -code_gdf_uvt.

The new layout differs in several ways from the older one. In short:

The UV specific information is included in the uvda section of the h%gil header, as described in appendix B.


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Next: Dap positions and size Up: The new layout Previous: The new layout   Contents
Gildas manager 2015-03-19