I am struggling to build some DX modules. I have two questions :

1) If I write a printf statement to look at some parameters, where 
does the output go. It doesn't go to standard output, and it doesn't 
go to the 'message' window' if I attach a 'print' module.
So.. how do I print out parameters of my code ?.. 

2) I have a regular grid of positions (and connections), and I want to 
invalidate some of these positions. So say I have a 3D regular grid 
of positions, say 100x 100x100. How do I invalidate position (20,35, 
40), for example ? There doesn't seem to be a way of locating this 
point in a regular grid to invalidate it ?

Any help would be appreciated.

Thanks

 Wyn

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