Request for comments on C-Structs to MC structs...

[xbury.cs at clearstream.com]

Richard,

Thanks but there is a speed issue here... Accessing data in properties of
objects
is/or must be just as slow as accessing a field... Which is why im not using
groups
of fields to re-create these structures...

It's the same reason im not using item x of line y of Zcontainer.
it's plain simpler and faster to use 2 items over thousands of lines than
100's of items across 2 lines...

Arrays seem to be the last solution before going back to C

What would be nice is to have multi-dimensional arrays like in C, basic
X[a][b][c]...[z]

or 

assigning properties to containers 
put x into the color of myobject[x]

Scott? Feasible? 

Meanwhile, my solution is the following:
X[a][b][c]...[z] = x[a(i^3)+b(i^2)+c(i^1)+d(i^0)]...[z] where {a,b..,z} is a
polynomial serie sigma((x(sub base i)) ^ (i-1))
and where i is the max(number of elements in any dimension)
the only danger is passing the limit of array elements too easily...
(2^54)-1...

  repeat with l = 1 to NUM_layers
    repeat with i = 1 to Net_Layer[l]
      repeat with j = 0 to net_layer_units[l-1]
        put l*100+i*10+j into va -- virtual array dimension
        put RandomEqualREAL(-0.5, 0.5) into Net_Layer_Weight[va]
      end repeat
    end repeat
  end repeat

any better ideas are welcome! Using nuclear fusion power to start a light
bulb!


> -----Original Message-----
> From: Richard Gaskin [mailto:ambassador at fourthworld.com]
> Sent: 04 November 2002 13:07
> To: metacard at lists.runrev.com
> Subject: Re: Request for comments on C-Structs to MC structs...
> 
> 
> xbury.cs at clearstream.com wrote:
> 
> > Before I go bananas (or meta-tutti-fruity), I'd like to ask 
> if anyone has
> > tried nesting arrays into arrays?
> > 
> > put abunchoflinesofdata into test[x] -- this works
> > put anotherbunch into test2[x] -- this also will work
> > put test[x] into test[y]
> > put test2[x] into test[y+1]
> > 
> > will this work and be reliable? Limits known?
> 
> Is abunchoflinesofdata an array itself?  I've never tried 
> that.  If it's
> just a chunk it should work.
> 
> Another option for storing hierarchically-structured data is to use MC
> properties and propertysets in native objects:
> 
> <http://lists.runrev.com/pipermail/use-revolution/2002-July/00
6141.html>

Remember that you can store and retrieve arrays from objects by setting the
properties of the current propertyset of the object to an array:

  -- Create an array:
  put "hello world" into tMyArray[1]
  --
  -- Tell MC which propertyset to work with:
  set the propertyset of stack "storage" to "ArrayData"
  --
  -- Set all of the key-value pairs of the storage object to
  -- the key-value pairs of the array:
  set the properties of stack "storage" to tArrayData


-- 
 Richard Gaskin 
 Fourth World Media Corporation
 Developer of WebMerge 2.0: Publish any database on any site
 ___________________________________________________________
 Ambassador at FourthWorld.com       http://www.FourthWorld.com
 Tel: 323-225-3717                       AIM: FourthWorldInc

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