DJ Delorie wrote:
I keep thinking about auto-teardropping pins and vias,
. . How fast
can we DRC a tiny region of the board, or a specific line or arc?
loop through all the
traces and vias and increase the sizes by, say, 1/2 mil at a time
If you also take your exiting line segments and break them and replace with two pieces where the first one is drawn from via center to a radius of (via size)(0.75) and made its line width be (via size)/2 you would have a crude approximation of an exponential transition between line and via that would maybe the same as a via alone for fast signals. The second replacement line segment would keep the original line width and be from the new point to the original other end point.
My drawing, (attached), shows the formula for deciding length of fat line transition segment needs to be more about the fatness of the line including its end to be right, and will vary a lot for different size vias.
John G
_______________________________________________ geda-dev mailing list [email protected] http://www.seul.org/cgi-bin/mailman/listinfo/geda-dev
