tr2011004_steps11

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“Ribbon-style” GUI with “bubbles” and “spill areas” Frank This year we are able to write this entire report in the Frank part of STEPS, including producing the PDF version for NSF’s web site. We can give comprehensive high‑quality, high‑resolution presentations using STEPS which include live code and in situ demos, and which show working versions of a number of the document types derived from the STEPS “universal document”. Overview of the Frank System being used to make Appendix I of this report VPRI Technical Report TR-2011-004 Slide out panel for holding scripts, etc Area for making all constructions Collapsible panel for showing thumbnails of all kinds of documents Collapsible Panels for all external resources such as files, email, Internet, etc 7
Summary of how we have approached the following key parts of the STEPS project: Graphics Sound & Movies Graphical Objects & Views “Files” Email Internet “Browsing” “Universal Documents” Text Objects GUI Desktop Publishing Presentations Spreadsheets Data Bases Scripting Explanations Making Languages No Operating System Simulation of “Time” Dealing with CPUs Importing & Exporting Graphics A new set of mathematical relations was derived for the involvement of an arbitrary polygon and a pixel. This gave rise to a rendering scheme that directly produces excellent antialiasing. “Runnable math”— called “Gezira”—and a POL for it— called “Nile” — were devised and implemented. The several dozen standard compositing rules, shading, stroking, gradients, sampling, shadowing, etc.—457 lines in total— were written in Nile and debugged to make a working graphics system, strong enough to be used for Frank, and to do all the graphics required for personal computing (and hence this report). (Above) The basic rendering formula for the Gezira graphics system in the “runable math” computer language “Nile” was previously about 80 lines of code. It has now been reformulated for clarity and simplicity, and currently only requires 45 lines of Nile code. VPRI Technical Report TR-2011-004 8
Page 1 and 2: STEPS Toward Expressive Espressive
Page 3 and 4: The STEPS Project For The General P
Page 5 and 6: Introduction and Context STEPS is a
Page 7: The STEPS Project in 2011 The overa
Page 11 and 12: Example of live editing of deep gra
Page 13 and 14: Generalized “Universal Document
Page 15 and 16: Desktop Publishing In the original
Page 17 and 18: Data Bases and Spreadsheets HyperCa
Page 19 and 20: Making Languages Our approach to ma
Page 21 and 22: Simulation of “Time” Traditiona
Page 23 and 24: Dealing with CPUs — High Level La
Page 25 and 26: High‑level features include highe
Page 27 and 28: December 2010 Alan Kay presented at
Page 29 and 30: References [Croquet] - David Smith,
Page 31 and 32: VPRI Technical Report TR-2011-004 3
Page 33 and 34: VPRI Technical Report TR-2011-004 3
Page 35 and 36: Appendix II - The Maru code to make
Page 37 and 38: sexpr = ssymbol | number | sstring
Page 39 and 40: Object new { (new (type-of self)) }
Page 41 and 42: ] | answer | answer := self new: 0.
Page 43: ] Array from: start to: stop graphF

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