Chilton::ACL::GROATS Manual

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Further reading □ Contents □ 1. Introduction □ 2. Definition of regions □ 3. Line drawing □ 4. Character typing and plotting □ 5. Control procedures □ 7. Extended facilities □ 10. References

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⟶ ACL ⟶ Literature ⟶ ICL 1906A manuals ⟶ GROATS

ACL ACD C&A INF CCD CISD Archives

Applications Associates Literature Society Technology Software revisited

Early history □ Minutes of committee meetings □ Progress reports □ Other reports □ News cuttings □ In-house publications □ Committee papers □ Personal recollections □ ACL publications □ Books □ Early Atlas publications □ FR80 reports □ Atlas manuals □ ICL1906A manuals □ Other manuals

Overview □ ICL1906A reference manual □ CAMPER (Computer Aided Movie Perspectives) □ CASS (Computer-Aided Sound Synthesis) □ COCOA □ FOG manual □ FR80 user manual □ GROATS (Graphics system) □ PIGS □ PLASYD □ SMOG □ SMOG/SPROGS primer □ SOL □ SPROGS (SD4020 PDP15 Rapid Output Graphics System) □ SPROGS supplement □ TASK □ TREE-META translator writing system

Contents

D C Toll and F R A Hopgood

June 1973

This is a subset of the full 200 page manual missing out the appendices which are similar to others and the information specific to the 1906A. The emphasis on defining fonts is due to the linguistic group which was working with ancient languages. Many of the SC4020 users were interested in animation which reflects the procedures added for saving and manipulating information.

GROATS

Contents
1. INTRODUCTION
2. THE DEFINITION OF REGIONS
- 2.1 Sub regions
- 2.2 Windows
- 2.3 Passive region
- 2.4 Reflection, rotation, and expansion of regions
- 2.5 Shielding
- 2.6 Active regions
3. LINE DRAWING
4. CHARACTER TYPING AND PLOTTING
- 4.1 The GROATS character set
- 4.2 Plotting characters
- 4.3 Typing
- 4.4 Variable and constant type spacing
- 4.5 Typing backwards
- 4.6 Overtyping
- 4.7 Character fonts
5. SC 4020 CONTROL PROCEDURES
7. EXTENDED FACILITIES
- 7.1 Graticule production
- 7.2 Identification subroutines
- 7.3 User defined characters and fonts
- 7.4 Saving plotter orders, defining fonts
- 7.5 The procedure fraction
- 7.6 Graphic library
10. ACKNOWLEDGEMENT AND REFERENCES

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