[pdp-discuss] TesselPrjnSpec usage

[Richard Jones]

Hi,

I'm trying to create a self-projection for a hidden layer using a
TesselPrjnSpec.  I'd like to have a RF pattern along the lines of the
one in the book's "v1rf" project in chapter 8.  However, I'd like each
of my units to try and inhibit his near neighbors.

bp++ allows me to assign the TesselPrjnSpec to the self-projection in
question, and I can edit its properties.  However, after applying and
doing a "Connect All" (or any of the other init buttons here and
there) no non-zero weights are created.  It doesn't seem to matter
which params I set in the properties editor.   If I assign other
PrjnSpec types (e.g., PolarRndPrjnSpec) I get non-zero weights.

I notice that in leabra++ with the v1rf project the TesselPrjnSpec
does work.  Does it perhaps require that I use a LeabraConSpec instead
of a BpConSpec?

Lastly, the online help makes mention of functions associated with the
TesselPrjnSpec (e.g., MakeEllipse(int half_width, int half_height, int
ctr_x, int ctr_y)), but it's not clear whether this is something
invoked automatically from the GUI, or if it's something that needs to
be invoked from some code somewhere.

How do I get that nice guassian cluster of weights around my sending unit?

-- 
Richard Jones
dickjr at gmail.com