Re: non-manhattan wiring at the layout level

[Steven Rubin]

At 08:30 PM 10/27/2005, you wrote:
> 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.

This is a bug in version 8.02 that is fixed in 8.03.  The new release 
will probably be available in a few weeks.

> 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.

I think this is the same bug, but I cannot be sure from your 
description.  If you can give me a precise description of what you 
are doing, I can try to reproduce the problem.

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

You can disable gridding for all design by using the "Alignment" 
section of the "Grid" preferences.

   -Steven Rubin