Mask generation tool
Linux/OS: [![Build Status](https://travis-ci.org/DerekK88/PICwriter.svg?branch=master)](https://travis-ci.org/DerekK88/PICwriter) Windows: [![Build status](https://ci.appveyor.com/api/projects/status/f9q96u9na63hy3ce?svg=true)](https://ci.appveyor.com/project/DerekK88/PICwriter) Documentation: [![Documentation Status](https://readthedocs.org/projects/picwriter/badge/?version=latest)](http://picwriter.readthedocs.io/en/latest/?badge=latest)
# PICwriter README Picwriter (Photonic-Integrated-Circuit Writer) is a [Python](https://www.python.org/) module, built above the [gdspy](https://github.com/heitzmann/gdspy) module, aimed at simplifying the process of designing complex masks for photonic integrated circuits through a prebuilt library of easy-to-implement PCells (technically all sub-classes of the gdspy Cell class). Supported blocks currently include: * waveguides (strip, slot, and sub-wavelength grating) * grating couplers (straight and focusing) * tapers * directional couplers * spiral structures (auto-generated from specified waveguide length) * 1x2 multi-mode interferometers * 2x2 multi-mode interferometers * ring & disk resonators with automatic bus waveguide wrapping * distributed bragg reflectors * Mach-Zehnder interferometers * alignment markers (for photolithography and ebeam lithography) * metal routes * bond pads
Stay tuned, more components are coming soon! In the meantime, check out the documentation for this project at [picwriter.readthedocs.io](http://picwriter.readthedocs.io).
## Features The ultimate goal of this module is to reduce the time required to generate photonic integrated circuit mask designs, by extending the functionality of the gdspy library. * High-level specification of common building blocks for photonic-integrated circuits * Fabrication specific masks. Specify the photoresist type (‘+’ or ‘-‘) and fabrication type (such as ‘ETCH’) and PICwriter will generate the appropriate mask files for electron-beam or photolithography. * All library components are subclasses of the gdspy Cell class, so gdspy Cell features such as rotation(), copy(), flatten(), get_bounding_box(), etc. are all supported. * Unique cell identifiers. Add components to your mask layout without worrying about name-clashes.
### Dependencies: With a working version of python, all dependencies should be automatically installed through the instructions below.
- [Python](http://www.python.org/) (tested with versions 2.7, 3.4, 3.5, 3.6 for Linux/OS, tested with versions 2.7, 3.4, 3.5, 3.6, 2.7-x64, 3.4-x64, 3.5-x64, 3.6-x64 for Windows.)
- [gdspy](https://github.com/heitzmann/gdspy) (tested with versions 2.7, 3.4, 3.5, and 3.6)
- [Python-future](http://python-future.org/) (only for Python 2)
### Linux / OS X Both options should automatically install all dependencies (like gdspy, numpy, etc.).
Option 1: using [pip](https://docs.python.org/3/installing/):
`sh pip install picwriter `
Option 2: download the source from [github](https://github.com/DerekK88/picwriter) and build/install with:
`sh python setup.py install `
The best way of obtaining the library is by installing the prebuilt binaries.
- First, go to the [gdspy appveyor project page](https://ci.appveyor.com/project/heitzmann/gdspy), then click the python environment that matches your python version and processor type. For example, if you have a 64-bit processor with Python version 3.5 (you can check by running python –version in a command prompt) then you would click ‘PYTHON=C:Python35-x64’. Then, click the Artifacts tab and download the corresponding distgdspy-1.X.X.X.whl wheel file.
- Open up a command prompt (type cmd in the search bar), navigate to your downloads, then install via:
`sh pip install dist\gdspy-1.X.X.X.whl `
- Next, install the PICwriter library by following the same procedure as before at the [picwriter appveyor page](https://ci.appveyor.com/project/DerekK88/picwriter) to install the corresponding prebuilt picwriter .whl file.
- In a command prompt, navigate to your downloads and install with pip:
`sh pip install dist\picwriter-1.X.X.X.whl `
Building from source is also possible. For installing gdspy, an appropriate build environment is required for compilation of the C extension modules.
Download the file for your platform. If you're not sure which to choose, learn more about installing packages.
|Filename, size & hash SHA256 hash help||File type||Python version||Upload date|
|picwriter-0.3-py2.7.egg (213.7 kB) Copy SHA256 hash SHA256||Egg||2.7|
|picwriter-0.3-py2-none-any.whl (99.5 kB) Copy SHA256 hash SHA256||Wheel||py2|
|picwriter-0.3.tar.gz (50.7 kB) Copy SHA256 hash SHA256||Source||None|