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- C common for DRAWfile utilities
- COMMON/DR/LP,SCALE,MINPX,MINPY,MAXPX,MAXPY,
- 1 MINBOX,MINBOY,MAXBOX,MAXBOY,LBUF(1024)
- C LP = page size flag, =0 no sizes =1 A4L 2 A4P 3 A5L 4 A5P
- C scale is 1mm in internal Draw units (PRM p1489
- C SCALE=180*256*/25.4
- C MINPX,MAXPX etc are bounding box for whole picture (Draw units)
- C initialised in DRHEAD
- C MINBOX,MAXBOX etc are bounding box this object
- C LBUF is storage for DRAW objects
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