drms_segment.h

drms_create_segment_prototypes drms_segment_autoscale drms_segment_createinfocon drms_segment_destroyinfocon drms_segment_fclose drms_segment_filename drms_segment_fopen drms_segment_fprint drms_segment_getblocksize drms_segment_getdims drms_segment_lookup drms_segment_lookupnum drms_segment_print drms_segment_read drms_segment_readslice drms_segment_segsmatch drms_segment_setblocksize drms_segment_setdims drms_segment_size drms_segment_write drms_segment_write_from_file drms_segment_writeslice name2seg num2seg

void drms_segment_autoscale ( DRMS_Segment_t *  seg, DRMS_Array_t *  arr, double *  autobzero, double *  autobscale   ) Sets the scaling parameters in the seg->record keyword (see drms_segment_setscaling), to values based on the extrema of the data array. The scaling parameters are set so that the unscaled data would occupy the full range of the segment fixed-point type; for example the maximum value of the array would be represented by 127 and the minimum by -128 in the segment data file if the type were DRMS_TYPE_CHAR. The scaling parameters will only be changed, however, if the original data would not otherwise fit unscaled into the range of the segment data type. Setting the scaling parameters for segments of floating-point type is probably a bad idea, but is done anyway, without regard to range. For other types, the scaling parameters are simply set to 1 and 0. Parameters: seg  The segment whose scaling is to be retrieved. array  The DRMS array whose data is to be autoscaled. autobzero  bzero value to offset data by, returned by reference. autobscale  bscale value to scale data by, returned by reference Definition at line 2391 of file drms_segment.c.