LASI also runs portably. You
can install the system on a flash drive or other removable drive and
work on drawings also stored on that same drive. Portable
operation lets you do work on any convenient PC without leaving any
files on that PC. This is
handy for presentations and for student projects.
Drawings are built from
hierarchical cells stored as individual TLC (Transportable Layout Cell)
files. TLC files can be easily traded between different drawings. TLC
files are in basic XML format.
LASI also has a script command
language. This is a simple text file of drawing edit commands that can
be individually written to create drawing figures, complete cells, or anything that could be difficult to draw by hand.
LASI consists of a main drawing editor and several
"utility" programs. These utilities include a user programmable bitmap based DRC, a basic
matrix router, and a Spice netlist compiler that extracts Spice circuit files
from both schematic and layout.
The utilities also include GDS, CIF
and DXF format converters, Since the LASI drawing structure is
fairly similar to GDS, drawings can be archived in GDS. Since most other CAD
systems can read GDS,
drawings can be moved to other CAD systems if desired, or if LASI is not available.
LASI does not do Spice simulations. There are good Spice simulators available already.
Spice simulations can be quite customized and are better not integrated
into LASI. Most simulators can run directly out of the main editor or
the Spice compile utility.
For anyone who is not familiar
with LASI or its utilities there is a large built-in Help file system.