Graphics Compatibility System (GCS). Primer on Computer Graphics Programming. Programmers Reference Manual (1978)
Defense Technical Information Center · leaf 285
X - 10.0 Y - 80.0 CALL USTART CALL UPSET C 7 LIBRARY 1 .) CALL UOUTLN DO I I • I, 8 CALL UFRAME {'TRIANGLE' ? CALL UMOVE CX,X> CALL UPEN CX. CX^S.0» CALL UPEN CCX*S.05.X> CALL UPEN CX.X) CALL UFREND C 7 TRIANGLE 7 > CALL U FRAME C 7 SQUARE7? CALL UMOVE <X.Y> X - X ♦ 10.0 Y - Y - 10.0 CALL URECT…
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