Chilton::ACL::SPROGS Notes

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⟶ ACL ⟶ Literature ⟶ Progress Reports ⟶ SPROGS Notes

⟶ ACL ⟶ Literature ⟶ Progress Reports ⟶ SPROGS Notes

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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 and papers

General □ Applications Software Group □ Basic Software Group □ FR80 □ FR80 operations □ FR80 project notes □ FR80 technical notes □ FR80 user notes □ Graphics □ Graphics Section □ Graphics Notes □ Graphics User Notes □ PDP15 □ PDP15 Notes □ SPROGS □ SPROGS Technical Notes □ SPROGS Papers □ SPROGS Notes

SPROGS Note No 7

R E Thomas

14 September 1972

1. The routine PLOT is not well defined in the manual, since the meaning of its argument is not made clear. It should be stated that it has a real argument specifying the SPROGS number of the character. The SPROGS numbers, defined in SPROGS Note 6, should also be included in the manual.

2. Reduction of lines through a region is not implemented in the manner stated in section 2.3 of the manual (version dated 18 August). SWOUTP is in fact tested before any conversion is attempted. This means that a user operating only in the base region will not require any conversion, nor will he require to use RGPLIM.

3. STRACE should be a display routine so that sequence tracing is made easy (just add a file containing a call to STRACE to the list). Like NUMBR and DRAW, it should imply picture type 6. However, one of the uses of picture types is a check for in-betweening. The in-between routines (not yet defined) will have to search type 6 files to determine whether they are legal or not (since files may contain DRAWS which invoke files of different picture types).

4. The following trace output suggestions were put forward.

(a) Print arguments in both text and real number form.

(b) For each DRAW and FIDF, print details of file stack information.

(c) For each ADVFLM, print the number of records output and the frame number.

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