[Ktechlab-devel] Converting to Eigen -- update equation matrix size?

[P Zoltan]

   Hi,

  I've tried to convert the existing code to use Eigen, but at this moment  
it's totally broken, due to the fact that if a new element/component is  
added to the circuit, the corresponding matrix's size doesn't change, so  
some nodes won't get voltage values. Does anybody know how adding new  
elements it's supposed to work?

  Later edit: it seems to me that after each added component, the  
CircuitDocument is divided in Circuits and ElementSets and each Circuit  
gets an init() call, where the matrix is recreated. Some more debugging is  
needed... And also a decent logging method, because debugging complex data  
structures/classes tends to suck.

  When I get something more or less functional, I'll send a patch.

   Zoltan