non-manhattan wiring at the layout level

[Paul Turner]

Hello,

I'm modifying Electric for use with new design technologies.  This 
includes the use of non-manhattan wiring and I've run into two main 
problems that I'm having difficulty working around.

1. arc creation assumes manhattan layout
Once I've created the arc at a multiple of 90 degrees, I can move the 
end around and the arc will remain in any angle I choose. However, it 
would be preferable if I could create it at the angle I chose from the 
start.

2. node creation occurs at odd locations and does not always work as a 
result.
Once I have overlapping arcs where both are at an angle, the location 
the tool decides to create a contact node or other more or less complex 
node, it places them in odd locations and doesn't seem to actually 
connect them either.
It always works if I place the connecting node around the head or tail 
of the arc but since I cannot reliably create a pin node where I want, 
or at all in most cases, placing it anywhere else on the arc fails so 
long as the arc is at an odd angle.  If the arc is at a manhattan angle 
I have no difficulty and can then move the contact around and the wires 
angle themselves as needed.

It would also be useful if I could disable lambda rules and lambda grid 
placement for certain nodes and arcs.

Where in the code can I look to modify how these items are created so I 
can make my own rules as to where they are created and what angles are 
permitted at original creation?