address.c

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#include <grass/segment.h>


int segment_address(const SEGMENT * SEG, int row, int col, int *n, int *index)
{
    *n = row / SEG->srows * SEG->spr + col / SEG->scols;
    *index = (row % SEG->srows * SEG->scols + col % SEG->scols) * SEG->len;

    return 0;
}