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This package contains a python plugin for the circuit simulator Gnucap which
allows the user to implement commands or components (or anything) in Python,
and run the simulator in a python environment, e.g. for postprocessing or
plotting purposes.
The package also provides a command for gnucap that loads python modules, such
as python modules implementing custom commands or components (or anything).
See examples.
Requirements
-------------
requirements are:
* gnucap >= oct '17
* Python >= 2.4
* Swig
* Numpy (with development headers/libraries)
* c++11 (pass -std=c++11 to your compiler,
if 11 is supported but the default is <11)
NOTE
-------------
if you have installed gnucap with a custom prefix, try passing
LDFLAGS=-L$prefix/lib to configure, and also export
LD_LIBRARY_PATH=$prefix/lib when you run it.
*** on some systems /usr/local is considered "custom", on others a dirty cache
interferes with the linker. YMMV, tell me your workarounds ***
Installation
-------------
Build python plugin for gnucap
::
$ ./bootstrap
$ ./configure # pass PYTHON=some_other_python, to select
$ make
$ make check # runs tests
$ make install # optional. may require root privileges
will install the python module "gnucap" and a gnucap plugin "python".
Examples
--------
From gnucap
~~~~~~~~~~~
This seems outdated. See examples/README
::
$ gnucap -a python.so
gnucap> python example/loadplot.py <= this file is missing, but still.
gnucap> get example/eq2-145.ckt
gnucap> store ac vm(2)
gnucap> ac oct 10 1k 100k
gnucap> myplot vm(2)
First the gnucap plugin is loaded. The second line loads a new command called
"myplot" that plots a stored waveform using matplotlib. Line 3-5 loads a
circuit and runs an ac analysis. Finally the ac magnitude of node 2 is plotted
using the new plotting command.
From Python
~~~~~~~~~~~
Do the same directly from Python
::
$ python
>>> import gnucap
[..]
welcome to gnucap-python
>>> gnucap.stuff
stuff is not documented yet, see examples for some applications
Caveats
~~~~~~~
python scatters the planet with .pyc files containing cached bytecode. these
may lead to weird error messages.
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