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Cemetech to Bring Full-Color Prizm 3D Graphing
Published by KermMartian on March 3, 2012 at 12:51:49 AM CST | Discuss this article (25)

Following a proud tradition of doing ridiculous things because we can, Cemetech's latest side-side-side project will do something a bit more useful. Long have I yearned for a beautiful 3D graph add-in to accompany the beautiful, high-resolution color screen on my trusty Casio Prizm calculator. Unfortunately, issues such as time constraints and no system calls that hook Casio's CAS have prevented this from becoming a reality. That changed a few months ago when Cemetech user AHelper, well-known for his upcoming GlassOS third-party TI-84+ operating system, decided to release source and information about his gCAS2 library. This nifty set of functions and support routines turns a string holding an equation into an AST (a tree representing the equation) and can then produce a numerical answer. It's currently still somewhat limited, and I tracked down a number of errors, but with that plus some custom color-mapping and 3D rendering code of my own, I produced a program that can graph any 3D equation.

Of course, it is still quite rudimentary. Although I've begun a single-line text input routine for entering equations, currently the equation to be graphed is compiled into the program (although it still calculates all points and colors on-the-fly on the Prizm!). Things like an adjustable window and zoom and rotation are coming soon, although I have a good idea of how they'll work. Trig functions including sin, cos, and tan are not yet in gCAS2, and there are glitches with certain types of coefficients. Nevertheless, as I find time, I hope to gradually bring this to an educational-grade, very useful 3D graphing program!

As always, feedback, comments, and suggestions are welcome. And don't forget that if you pre-order my upcoming beginner programming / TI-BASIC book, Programming the TI-83+/84+ before March 6th, there's a 50% off code, "TI8384".



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2012 Articles
January 2012 January 2012 [Back to News Archives Index]

» Happy New Year; Cemetech's 2011 In Review published January 5, 2012 by KermMartian
» Defeat SOPA/PIPA; Contest 8 End Looms published January 18, 2012 by KermMartian
» 900K Downloads; Contest 8 Ends Today published January 22, 2012 by KermMartian
» [InDev] jsTIfied, a Javascript TI-83+ Emulator published January 24, 2012 by KermMartian

February 2012 February 2012 [Back to News Archives Index]

» [Prizm] Tetrizm v1.0 published February 2, 2012 by KermMartian
» Public jsTIfied Beta: a TI-83+ in Your Browser published February 6, 2012 by KermMartian
» Cemetech Contest #8 Results published February 22, 2012 by KermMartian
» State of the Prizm: February 2012 published February 24, 2012 by KermMartian
» Introducing "Programming the TI-83+/84+" published February 28, 2012 by KermMartian

March 2012 March 2012 [Back to News Archives Index]

» Cemetech to Bring Full-Color Prizm 3D Graphing published March 3, 2012 by KermMartian
» Graph3DP Video Demo; Prizm OS 1.04 published March 15, 2012 by KermMartian

April 2012 April 2012 [Back to News Archives Index]

» Graph3DP v1.0 Beta 1; Prizm Hacking Continues published April 1, 2012 by KermMartian
» Prizm Successfully Overclocked, Underclocked published April 4, 2012 by KermMartian
» United-TI To Merge Into Cemetech published April 15, 2012 by KermMartian
» United-TI Forum Archives Open at Cemetech published April 21, 2012 by KermMartian

May 2012 May 2012 [Back to News Archives Index]

» More Prizm Gaming: 3D and OverClui published May 2, 2012 by KermMartian
» New Moderators: Tari, Weregoose, Xeda112358 published May 9, 2012 by KermMartian
» Kernel Hacking: Connect an SSD1289 LCD to a Beaglebone published May 17, 2012 by KermMartian
» SourceCoder: A TI-83+ Emulator in your TI-BASIC Editor published May 28, 2012 by KermMartian

June 2012 June 2012 [Back to News Archives Index]

» First Impressions of the Casio ClassPad 330 published June 19, 2012 by KermMartian
» "Programming the TI-83+/84+" Heads to Production published June 21, 2012 by KermMartian
» Doom, 3D Graphing Advance on Casio Prizm published June 25, 2012 by KermMartian

July 2012 July 2012 [Back to News Archives Index]

» Doors CS 7 Ornament, IRC Stats, Updates published July 12, 2012 by KermMartian
» A Formal Unveiling of WikiPrizm published July 20, 2012 by KermMartian

August 2012 August 2012 [Back to News Archives Index]

» TI-89 Titanium Disassembly and Backlighting published August 9, 2012 by KermMartian
» [Prizm] Introducing LuaZM published August 17, 2012 by KermMartian
» Back-To-School Guide 2012 Part 1: Buying a Graphing Calc published August 27, 2012 by KermMartian

September 2012 September 2012 [Back to News Archives Index]

» Graph3DP 1.0 Release Candidate 1 published September 2, 2012 by KermMartian
» Back-To-School Guide 2012 Part 2: Put Games on Your Calc published September 4, 2012 by KermMartian
» [Prizm] Graph3DP 1.0 Released published September 6, 2012 by KermMartian
» LuaZM v0.1 Beta: Lua for the Casio Prizm published September 8, 2012 by KermMartian
» Back-To-School Guide 2012 Part 3: Learn to Program published September 12, 2012 by KermMartian
» Calculator Hacking at Maker Faire 2012 published September 13, 2012 by KermMartian
» jsTIfied Online Emulator Adds Beta TI-84+/SE Support published September 18, 2012 by KermMartian
» "Programming the TI-83 Plus/TI-84 Plus" Published published September 28, 2012 by KermMartian
» Maker Faire 12 Day 1: Educators' Choice; Hackaday Interview published September 29, 2012 by KermMartian

October 2012 October 2012 [Back to News Archives Index]

» Cemetech at World Maker Faire 2012 Recap published October 3, 2012 by KermMartian
» Games: Alien Breed 5 and Bloxorz published October 6, 2012 by KermMartian
» jsTIfied 1.0 Release Candidate 1 published October 9, 2012 by KermMartian
» Play @ Cemetech: MC and UT2004 published October 14, 2012 by KermMartian
» "Programming the TI-83+/84+" for Kindle/eBook published October 20, 2012 by KermMartian
» Cemetech Gets a Fresh Look published October 25, 2012 by KermMartian

November 2012 November 2012 [Back to News Archives Index]

» TI-84 Plus C Color-Screen Calculator Discovered published November 8, 2012 by KermMartian
» Cemetech Founder to Speak at Texas Instruments T3 Conference published November 9, 2012 by KermMartian
» Official Updates About TI-84 Plus C Silver Edition Software published November 12, 2012 by KermMartian
» Cemetech Contest #9 Announced published November 14, 2012 by KermMartian
» Nspire Ribbon Repair And Miscellany published November 18, 2012 by KermMartian
» 200K Posts, Other Stats published November 18, 2012 by KermMartian
» Exploring Options for Expansion published November 19, 2012 by Alex
» Casio Announces ClassPad fx-CP400 Color Touch Calculator published November 29, 2012 by KermMartian

December 2012 December 2012 [Back to News Archives Index]

» Official TI-84+CSE Updates: Specs, FAQs, More published December 12, 2012 by KermMartian
» "Self-Teaching a Love of STEM: A Personal Tale" published December 27, 2012 by KermMartian
» Announcing jsTIfied 1.0, an Online Graphing Calculator published December 31, 2012 by KermMartian

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