def light9_presentation():

    """

    Drew Perttula

    drewp@bigasterisk.com

    http://light9.bigasterisk.com

    Goals of light9:

    - control the brightness of many lights while playing music

    - allow easy editing of the show

    - allow easy maintenance of the code, even while the show is running

    """

def dependencies():

    """

    Twisted - event loop and networking

    TwistedWeb - xmlrpc protocol

    tk, tix

    pympd - my twisted interface to mpd

    pydispatcher - signals

    mpd - music player daemon

    swig - interface to C code

    darcs

*

    """

def connections():

    """

               (play cmds)

    ascoltami --------------> mpd ----------> audio out

        | (timing)

        v

    curvecalc    subcomposer    keyboardcomposer

        |            |                 |

        +---         |             ----+

            \-----   |    --------/

                  \--+---/

                     | (light levels)

                     v

*                dmxserver

                    | (dmx levels)

          ......... v ....................

          .      chippy                  .

          .         | (dmx)              . external hardware

          .         v                    .

          .      dmx dimmer              .

          .         | (juice)            .

          .         v                    .

          .      light                   .

          ................................

    """

def metrics():

    """

    selected linecounts:

      356 ascoltami              (music player)

      318 curvecalc              (curve and expression editor)

      279 keyboardcomposer

      189 dmxserver              (hardware output)

      153 subcomposer

       17 wavecurve              (create smoothed waveforms from .wav)

      311 light9/curve.py        (curve widgets)

      191 light9/FlyingFader.py  (enhanced tk.Scale)

      168 light9/Submaster.py

*     151 light9/zoomcontrol.py

      137 light9/dmxchanedit.py

       40 light9/wavepoints.py

       65 light9/io/parport.c    (dmx interface protocol)

       50 light9/io/serport.i    (i2c interface to sliders)

    total in project: about 3200 in about 30 files

    """

def future_projects():

    """

    A submaster server that talks with the other programs and

    eliminates all the explicit saving and reloading of subs

    More abstract output layer, to which I can add home lighting, for

    example

    Small timed 'clips' that can be triggered

    Generalize to a whizzy, distributed real-time circuit simulator

    node network with a 5GL editor and failsafe checkpointing and

    redundancy

*

    """