int V1_rewind_nat(struct Map_info *Map)
Rewind vector map to cause reads to start at beginning on non-topological level (level 1) - native fo...
plus_t next_line
Feature id for sequential access.
int V2_rewind_nat(struct Map_info *Map)
Rewind vector map to cause reads to start at beginning on topological level (level 2) - native format...
struct dig_head head
Header info.
struct gvfile dig_fp
GV file pointer (native format only)
long head_size
Coor header size.
int dig_fseek(struct gvfile *file, off_t offset, int whence)
Set struct gvfile position.