Mercurial > code > home > repos > light9
changeset 469:c96768581667
final version of baypiggies2008 talk
| author | drewp@bigasterisk.com |
|---|---|
| date | Tue, 14 Oct 2008 06:34:50 +0000 |
| parents | 2d9c85c98be6 |
| children | 68e1655eaa2c |
| files | doc/baypiggies2008/index.html doc/baypiggies2008/rdfgraph.png |
| diffstat | 2 files changed, 197 insertions(+), 32 deletions(-) [+] |
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--- a/doc/baypiggies2008/index.html Fri Sep 05 07:06:34 2008 +0000 +++ b/doc/baypiggies2008/index.html Tue Oct 14 06:34:50 2008 +0000 @@ -25,6 +25,13 @@ pre { white-space: pre; } +pre.file { + border: 1px solid #aaa; + border-bottom: 0; + font-size: 80%; + background: #eef; + padding: .3em; +} </style> </head> <body> @@ -55,9 +62,10 @@ <h1>Existing system</h1> From my June 2005 presentation: -<pre> - (play cmds) - ascoltami --------------> mpd ----------> audio out +<pre style="font-size: 60%"> + + (play cmds) + ascoltami -----------> mpd ------> audio out | (timing) v curvecalc subcomposer keyboardcomposer @@ -71,8 +79,8 @@ | (dmx levels) ......... v .................... . entec open dmx . - . | (dmx) . external hardware - . v . +external . | (dmx) . +hardware . v . . dmx dimmer . . | (juice) . . v . @@ -97,54 +105,211 @@ <div class="slide"> <h1>What's new: real sliders</h1> - <img src="bcf2000-desk1.jpg"/> + <img src="bcf2000-desk1.jpg" style="float:right; border: 2px solid #005;" width="40%"/> <ul> <li>$200 board with 8 motorized faders (plus knobs, lights, and buttons)</li> - <li>Talks midi or usb-midi</li> - <li>Python/linux driver is easy: </li> - <pre>self.dev = open("/dev/snd/midiC1D0") - b0, which, value = [ord(b) for b in self.dev.read(3)] - self.dev.write(chr(0xb0) + chr(which[0]) + chr(int(value)))</pre> + <li>Talks midi over usb</li> + <li>Python/linux driver is easy: + <pre> +self.dev = open("/dev/snd/midiC1D0") +b0, which, value = [ord(b) for b in + self.dev.read(3)] +self.dev.write(chr(0xb0) + + chr(which[0]) + + chr(int(value)))</pre></li> + </ul> +</div> + +<div class="slide"> + <h1>What's new: RDF for data storage</h1> + <ul> + <li>Old system: ad-hoc text files.</li> + <li>Never do this again.</li> + </ul> +</div> + +<div class="slide"> + <h1>Old file formats</h1> +<pre class="file"> +[music] +preSong = silence-4sec.wav +postSong = silence-15sec.wav +</pre> + +<pre class="file"> +down-l : 0.32005 +down-r : 0.3071 +down-sides : 0.37 +lo-c-cross : 0.24 +</pre> + +<pre class="file"> +scoop-r right(t) +lo-fill can(t) +ch1 chase(t,names=back_colors, ontime=.6, offset=0) * ch1(t) +</pre> + +<pre class="file"> +patch = { + ('fill-xl','b31',) : 61, + ('broke', 'back8','b32',) : 62, + ('blue-xl','b33broke',) : 63, +</pre> +</div> + +<div class="slide"> + <h1>Storage goals</h1> + <ul> + <li>Stop inventing and extending syntaxes</li> + <li>Stop reloading the files all the time. Get incremental + updates or query data as it's needed.</li> + <li>Fancier data structures</li> + <li>Arbitrary layout of files on disk</li> + <li>Keep using my most flexible editor (emacs)</li> + </ul> +</div> + +<div class="slide"> + <h1>New system: RDF</h1> + <ul> + <li>Most files are RDF data (saved as .n3 or ntriples)</li> + <li>Syntax(es) are already done, and all values are unambiguously labeled</li> + <li>Complex data types and relationships are almost as easy as basic ones</li> + <li>Extensible and upgradable, of course</li> + <li>Used DSLs and logic programming to abbreviate boring parts</li> </ul> </div> <div class="slide"> - <h1>What's new: RDF for most data storage</h1> -<ul> - <li>Old system: ad-hoc text files. Never do this.</li> - <li>Now: most files are RDF data (saved as .n3 or ntriples)</li> + <h1>New data, shown as n3</h1> +<pre class="file" style="font-size: 80%"> +@prefix : <http://light9.bigasterisk.com/> . +@prefix sub: <http://light9.bigasterisk.com/sub/> . +@prefix t: <http://light9.bigasterisk.com/show/dance2008/⤶ + song10/subterm/> . - complex data structures (objects with types and attributes, attrs, lists, sets, references between files) - use DSLs to abbreviate boring parts - +<http://light9.bigasterisk.com/show/dance2008/song10> + :subterm t:blacklight, + t:song10, + t:song3black . +t:song10 a :Subterm; + :expression "song10(t)"; + :sub sub:song10 . +t:blacklight a :Subterm; + :expression "blacklight(t)>0"; + :sub sub:blacklight . + </pre> </div> <div class="slide"> - <h1>What's new: lightsim</h1> + <h1>The same data, in xml</h1> + <pre style="font-size: 45%; line-height: 1.3em;"> +<rdf:RDF xmlns="http://light9.bigasterisk.com/" + xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#"> + + <rdf:Description rdf:about="http://light9.bigasterisk.com/show/dance2008/song10"> + <subterm rdf:resource="http://light9.bigasterisk.com/show/dance2008/song10/subterm/blacklight"/> + <subterm rdf:resource="http://light9.bigasterisk.com/show/dance2008/song10/subterm/song10"/> + <subterm rdf:resource="http://light9.bigasterisk.com/show/dance2008/song10/subterm/song3black"/> + </rdf:Description> + + <Subterm rdf:about="http://light9.bigasterisk.com/show/dance2008/song10/subterm/blacklight"> + <expression>blacklight(t)&gt;0</expression> + <sub rdf:resource="http://light9.bigasterisk.com/sub/blacklight"/> + </Subterm> + + <Subterm rdf:about="http://light9.bigasterisk.com/show/dance2008/song10/subterm/song10"> + <expression>song10(t)</expression> + <sub rdf:resource="http://light9.bigasterisk.com/sub/song10"/> + </Subterm> +</rdf:RDF> +</pre> +</div> + +<div class="slide"> + <h1>A simple line-based format</h1> + <pre style="font-size: 45%;"> +<http://light9.bigasterisk.com/show/dance2008/song10> <http://light9.bigasterisk.com/subterm>⤶ + <http://light9.bigasterisk.com/show/dance2008/song10/subterm/blacklight> . + +<http://light9.bigasterisk.com/show/dance2008/song10> <http://light9.bigasterisk.com/subterm>⤶ + <http://light9.bigasterisk.com/show/dance2008/song10/subterm/song10> . + +<http://light9.bigasterisk.com/show/dance2008/song10> <http://light9.bigasterisk.com/subterm>⤶ + <http://light9.bigasterisk.com/show/dance2008/song10/subterm/song3black> . + +<http://light9.bigasterisk.com/show/dance2008/song10/subterm/blacklight>⤶ + <http://www.w3.org/1999/02/22-rdf-syntax-ns#type> <http://light9.bigasterisk.com/Subterm> . + +<http://light9.bigasterisk.com/show/dance2008/song10/subterm/blacklight>⤶ + <http://light9.bigasterisk.com/expression> "blacklight(t)>0" . + +<http://light9.bigasterisk.com/show/dance2008/song10/subterm/blacklight>⤶ + <http://light9.bigasterisk.com/sub> <http://light9.bigasterisk.com/sub/blacklight> . + +<http://light9.bigasterisk.com/show/dance2008/song10/subterm/song10>⤶ + <http://www.w3.org/1999/02/22-rdf-syntax-ns#type> <http://light9.bigasterisk.com/Subterm> . + +<http://light9.bigasterisk.com/show/dance2008/song10/subterm/song10>⤶ + <http://light9.bigasterisk.com/expression> "song10(t)" . + +<http://light9.bigasterisk.com/show/dance2008/song10/subterm/song10>⤶ + <http://light9.bigasterisk.com/sub> <http://light9.bigasterisk.com/sub/song10> . +</pre> + +</div> + +<div class="slide"> + <h1>Again, with less wrapping</h1> + <pre style="font-size: 40%;"> +<http://l9.com/show/dance2008/song10> <http://l9.com/subterm> <http://l9.com/show/dance2008/song10/subterm/blacklight> . +<http://l9.com/show/dance2008/song10> <http://l9.com/subterm> <http://l9.com/show/dance2008/song10/subterm/song10> . +<http://l9.com/show/dance2008/song10> <http://l9.com/subterm> <http://l9.com/show/dance2008/song10/subterm/song3black> . +<http://l9.com/show/dance2008/song10/subterm/blacklight> <http://l9.com/expression> "blacklight(t)>0" . +<http://l9.com/show/dance2008/song10/subterm/blacklight> <http://l9.com/sub> <http://l9.com/sub/blacklight> . +<http://l9.com/show/dance2008/song10/subterm/blacklight> <http://www.w3.org/1999/02/22-rdf-syntax-ns#type> <http://l9.com/Subterm> . +<http://l9.com/show/dance2008/song10/subterm/song10> <http://l9.com/expression> "song10(t)" . +<http://l9.com/show/dance2008/song10/subterm/song10> <http://l9.com/sub> <http://l9.com/sub/song10> . +<http://l9.com/show/dance2008/song10/subterm/song10> <http://www.w3.org/1999/02/22-rdf-syntax-ns#type> <http://l9.com/Subterm> . +</pre> +</div> + +<div class="slide"> + <h1>Again, rendered with graphviz</h1> + <img src="rdfgraph.png" /> +</div> + +<div class="slide"> + <h1>What's next: lightsim</h1> <ul> <li>We could really use a good way to preview scenes</li> - <li>Lighting follows the superposition principle</li> + <li>Hard to use text labels for all the different lighting scenes</li> + <li>Can't work on lighting cues without looking at the stage</li> + </ul> +</div> +<div class="slide"> + <h1>lightsim enablers</h1> + <ul> + <li>Light obeys superposition: <br/>F(ax+by) = aF(x) + bF(y)</li> + <li>All my lights are computer-controlled</li> + </ul> +</div> +<div class="slide"> + <h1>lightsim demos</h1> + <ul> <li>Original version from 2002: Tk, PIL</li> <li>Current version: qt, OpenGL</li> </ul> </div> <div class="slide"> -<h1>Related projects</h1> -<li>vistrails</li> -<li>kamaelia</li> + <h1>More</h1> + <li>Links related to this project:<br/> +http://delicious.com/drewpca/light9</li> +<!--<script type="text/javascript" src="http://feeds.delicious.com/v2/js/drewpca/light9?title=Related%20Delicious%20Bookmarks&icon=s&count=5&bullet=%E2%80%A2&sort=date"></script>--> </div> - - - -http://www.opendmx.net/index.php/Open_DMX_USB - - - - - </div> </body>