gr_id
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IN:
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General raster interface identifier returned by GRstart
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gr_name
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IN:
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Name of the target general raster image
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#include "hdf.h" int32 gr_id, ri_id, index; char *gr_name; ... index = GRnametoindex(gr_id, gr_name); ri_id = GRselect(gr_id, index); ...
FORTRAN
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integer function mgn2idx(gr_id, gr_name)
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integer gr_id
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character* (*) gr_name
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