DEF reading to use vector fonts on PIN labels, with some ad hoc
rules for size and rotation (may need refinement). Modified the
DEF annotation (def read -annotate) so that the preferred position
of labels is on a wire leading out from a pin connection, which
is a "safer" place to put it, in case the layout was manually
edited between the DEF read and annotation. Fixed another two
crash conditions related to read-only views. Corrected a startup
error caused by an uninitialized variable used by the "wiring"
section of the tech file.
option "labels ... cellid" to handle some vendor files where
apparently to get around the 30-character cell name limit, the
actual cellname is encoded on a text layer. Added new cifop
"boundary" (no arguments) for cases where a cell abutment box
is encoded on a GDS layer; this now translates the bounding
box to the FIXED_BBOX property, as is done with the LEF bounding
box. Also corrected the property set function to free existing
property value allocated memory when overwriting a property with
a new value.
the same interpretation as the scalefactor for the DRC section:
Values in the section are interpreted as lambda divided by the
scalefactor. That allows the wiring values to be real units such
as nanometers and avoid problems with fractional lambda values.
addition to wire overlaps, and added a method when painting
contacts to draw the necessary wire extension past the contact.
Since the wiring method draws single contacts by default, this
wiring method assumes a change in direction between layers. But
the main point is to generate wire contacts without DRC errors.
Tim Edwards
Tim 'mithro' Ansell