Calculator or kicad addon

[donkey]

Hey all.
Silly question here and i know the maths side (not really but hey).
What i am doing is laying out a pcb. I want designate point a to point b. But i want the calculator to determine best route given certain variables like resistance, trace area, mm^2, and preferably use a few different materials like carbon and copper etc.
The variables would have to auto adjust and hopefully plot it out

 

[Harald Kapp]

Not exactly what you're looking for, but look up "design rules" or "constraints" in Kicad. These allow you to pre-determine parameters.
The "best" route using these parameters should be found by using the autorouter. At least as long as you route the critical traces first while there is enough free real estate on the PCB.

 

[donkey]

using a excel sheet and kicad I got somewhere. thanks @Harald Kapp