The Art of Computer Graphics Programming: A Structured Introduction for Architects and Designers

allow ANGLE array assigned BASE BEGIN END Boolean Calculate chapter CHOICE circle color columns commands complex components composition consider construction coordinate coordinate system corner COUNT curve data structure defined device DIAMETER display DRAW effect elements example execution expression figure FINISH four function graphic grid HEIGHT illustrated INCREMENT input instance INTEGER introduced invoked LENGTH limited loop memory motif MOVE operations output parameters Pascal pattern perform picture pixel POINTER polygon position possible procedure produce RADIUS raster READLN REAL record rectangle relations repeat resolution result ROTATE rules SCALE screen sequence shape shown in figure shows side simple SPACING specified square statement stored structure THETA transformation TRANSLATE triangle unit usually values variables vary vectors vocabulary WIDTH window write WRITELN WRITELN ENTER