Routing Angle

I'm trying to visualise a design with some traces skewed. Do you mean something like the attached?

If you manually routed a 'stairstep' trace from point A to point B

A----
       |
       ------
               |
               ------ B

a routine could then skew the segments from 0/270 to 350/260, yes.
Your path is now slightly shorter, which might cause other concerns.
Naturally, more-complex paths would require more-complex code to achieve the goal. Something like a semicircle

A--------
            |
            ------
                   |
                   |
            ------
           |
B -------

would require 'breaking' the vertical segment at the midpoint to yield two smaller segments that can
be skewed, one tilted backwards the other forwards.
      
Or maybe we're overcomplicating the problem? If you are routing these special traces manually why not
simply turn Routing Angle to 'OFF' 

In closing, a routine could be crafted to help you but its complexity would be in direct proportion to the
complexity of your requirements and would definately require some fine-tuning - this is not something one
cound crack out in a few hours.

HTH,

Chris Walters
local Cadence guru
()

PS - anyone know of a position for a(nother) Cadence guru?

PSS -  apologies for crude ASCII art





Originally posted in cdnusers.org by kerchunk

I can think of two ways of doing this. (Neither require skill)
1. Rotate the entire design 5-10 degrees, route normally (0,45,90), then rotate back.
2. Create a visual grid rotated the 5-10 degrees (on an artwork layer). Then route with rotation angle off trying to stay parallel to the grid lines.

I still don't think there is currently a simple solution. I doubt that Cadence would seriously consider an "enhancement" that would allow a random line lock. There is a big mathematical difference between 45 and, say, 10 degrees as far as being able to route on grid. They effectively offer this with the "Off" option.

I suggest the interim solution is to route visually and use Skill to verify the skew of critical traces. This code would be simple. Let me know if we can help.

Guys,

thanks for the ideas, I'll try these ones and let you know what will be the outcome