[jmsl] Jmsl to Xml/Midi and Xml/Midi to Jmsl?

[jmsl at music.columbia.edu]

ugh, I see the mailer unwrapped the 4-numbers-per-line listing of 
MusicShape data. This example at the end of message looks very confusing 
now.  Those numbers should be four per line.
Sorry
Nick

jmsl at music.columbia.edu wrote:
> Hi Chi
>
> Here's what I would do: I'd develop my own simple text-based shorthand 
> for encoding this to a text stream, and write it / read it to/from a 
> text file for testing. Not sure XML is really needed for this since it 
> is so straightforward, but I'll use XML-like tags.
> Mark the beginning of pc with <parallelcollection>
> Mark the end with </parallelcollection>
> Mark the beginning of sc with <sequentialcollection>
> Mark the end with </sequentialcollection>
> Everything encountered between the <collection></collection> tags gets 
> added to that collection instance
> Mark the beginning of ms with <musicshape>
> Mark the end with </musicshape>
>
> Examine the following to save/load the musicshape data, maybe they 
> will be of use:
> MusicShape.save():
> /**
>    * Save a MusicShape to a file
>    *
>    * PrintWriter out = new PrintWriter(new BufferedWriter(new 
> FileWriter("foo.out")));
>    *
>    * First line is number of dimensions, followed by dimension names, 
> one per line, followed by
>    * data, one element per line *
>    */
>
>
> MusicShape.load():
> /**
>    * BufferedReader in = new BufferedReader(new FileReader("foo.in"));
>    *
>    * Replace data with data loaded from a file. Also reads dimension 
> names from file.
>    *
>    */
>
>
> So a simple example of a text file that has a Sequential Collection 
> containing one ParallelCollection containing two MusicShapes might 
> look like this (assumes your MusicShapes have 4 dimensions and you 
> called ms.useStandardDimensionNameSpace() )
>
> <sequentialcollection>
> <parallelcollection>
> <musicshape>
> 4
> duration
> pitch
> amplitude
> hold
> 0    1.0    68.0    0.3320770263671875    2.0   1    0.25    68.0    
> 0.3054046630859375    2.0   2    1.0    66.0    0.1468963623046875    
> 2.0   3    0.0    64.0    0.6534271240234375    2.0   4    0.25    
> 66.0    0.8718719482421875    0.5   5    0.0    68.0    
> 0.0991058349609375    1.0   6    0.25    65.0    0.8820037841796875    
> 2.0   7    0.0    68.0    0.0174407958984375    2.0   8    0.0    
> 66.0    0.5522918701171875    0.5   9    0.75    63.0    
> 0.7834320068359375    1.0   10    0.25    64.0    
> 0.2577362060546875    1.5   11    0.5    62.0    0.7720794677734375    
> 1.5   12    0.0    64.0    0.3733367919921875    2.0   13    0.5    
> 62.0    0.3583831787109375    2.0   14    1.0    64.0    
> 0.2740936279296875    1.5   15    0.5    66.0    0.9173431396484375    
> 0.5   16    0.25    66.0    0.3350067138671875    2.5   </musicshape>
> <musicshape>
> 4
> duration
> pitch
> amplitude
> hold
> 0    1.0    63.0    0.384246826171875    2.5   1    0.25    65.0    
> 0.930084228515625    1.0   2    0.75    64.0    0.855804443359375    
> 1.5   3    0.75    63.0    0.020782470703125    1.5   4    0.25    
> 62.0    0.534393310546875    1.0   5    1.0    62.0    
> 0.756011962890625    2.0   6    0.75    61.0    0.295013427734375    
> 2.5   7    0.75    61.0    0.010772705078125    1.0   8    0.75    
> 61.0    0.012664794921875    2.0   9    0.0    58.0    
> 0.660064697265625    2.5   10    0.25    55.0    0.562347412109375    
> 2.5   11    1.0    53.0    0.578887939453125    1.5   12    0.0    
> 53.0    0.819061279296875    0.5   13    0.0    53.0    
> 0.642242431640625    2.0   14    0.25    52.0    0.657806396484375    
> 1.5   15    0.25    50.0    0.725128173828125    2.5   16    0.5    
> 53.0    0.953582763671875    1.5   </musicshape>
> </parallelcollection>
> </sequentialcollection>
>
>
> Thanks
> Nick Didkovsky
>
> jmsl at music.columbia.edu wrote:
>> Hi,
>>
>> I'm pretty new at programming, but I'm trying to write an applet that 
>> people can compose some music and save it on the web to share.
>> I need to way to pass a sequential collection to php and import back 
>> from url. The way I organized the collection is:
>> 1. ParallelCollections (pc) contains one measure of MusicShapes (ms) 
>> for different instruments.
>> 2. SequentialCollection (sc) contains all the pcs above.
>> I tried to convert the entire sc into xml with XStream, but since 
>> jmsl is third party library, it throws a security error.
>> My alternative is midi which might be simpler. I've checked out 
>> MidiLoggerNonRealTimeTest, but is there way to feed the entire 
>> collection into MidiLogger? MidiLoggerNonRealTimeTest seem to feed 
>> one midi message at a time to the logger. If I can export the entire 
>> sc into midi, I could just let users save the midi file and share the 
>> midi file on the web.
>> Thanks for all your help.
>>
>> Chi
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