Permission denied,” then enter sudo pip3 install klayout. Sudo declaration will install the package as a super user (root user), and you will be prompted to enter administrative password. If you will be using Python version 2.X, simply replace pip3 with pip. “Thanks to the Mac community for your extraordinary patience – and a very special thanks to a particularly astounding group of folks who helped many of you play League via an unofficial client over the past months,” he added. If the perimeter of your monitor is encased in gleaming white, this might be exactly what you’ve been waiting for. TunesKit Free Video Cutter for Mac 2.2.1 SoundTap Pro Edition for Mac 6.18 AnyMP4 Blu-ray Creator 1.1.66 Debut Free Screen Capture Software 6.47 iDealshare VideoGo 6.4.0.7258 Prism Plus Edition for Mac 6.68 Direct MP3 Recorder Free 3.3 MP3 Bitrate Changer 1.6 DJ Mix Master 2.9 Network & Internet GlassWire Firewall 2.2.241 PresenTense Time.
KLayout Python Scripting Tutorial
- Part 1 : Use Python-KLayout to create shapes & export GDS (You are here!)
In this new series of tutorials, I am going to diverge from topics on web app development (only temporarily!), and discuss some of new skills I developed while working from home.
As a hardware engineer, physical layout is inevitable. If you’ve done any layout work involving at least a few cells, then you know how labor-intensive it can get. Now, although I won’t disclose the specific industry I am in, some aspects of my work force me to get my hands dirty. Hence, I started to investigate how I can automate this layout process.
Keyman Amharic Keyboard Layout For Mac
Luckily, KLayout came to the rescue. I learned that it supports Macro development in Ruby and Python. Super excited to find Python support, I searched for the official documentation to get started. However, such only existed in Ruby (as of June 2020), a language which I had no knowledge of…
Therefore, I quickly shifted gears, and began to experiment based on the pieces of Python scripts shared within KLayout Forum page. This tutorial is a compilation of everyone’s contribution tailored for my project. In Part 1, I will cover the following subjects :
- Install KLayout package in Python
- Create basic shapes and export as a GDS file
1. Install KLayout package in Python
Super simple. Open Terminal (I am using Mac), and enter the following :
Windows Keyboard Layout For Mac
If you see an error message “Could not install package … Permission denied… ,” then enter sudo pip3 install klayout.
sudo declaration will install the package as a super user (root user), and you will be prompted to enter administrative password.
If you will be using Python version 2.X, simply replace pip3 with pip.
2. Create basic shapes and save as GDS file
Klayout For Mac Pro
Let’s start the layout process. Our goal is to create two legs of metals as shown below. Check out the definitions of the dimensions, as they will be used to define the coordinates of placement
Next, open your favorite text editor (I like to use Sublime Text), and paste below code.
Let’s get into the details.
Klayout Macro Python
- Line 3 : Generated KLayout object
- Line 7 : Creates a cell name “0_UNIT”
- Lines 11 & 12 : Assigns layers numbers for Outline and Metal
- Lines 16 & 17 : Defines dimensions of the shapes to be placed
- Line 21 : Creating a shape using layer # defined previously, and attaching it to the cell created in Line 7. Note that the coordinates are defined as (x_start, y_start, x_end, y_end).
- Lines 25 & 26 : Do the same for other shapes
- Line 30 : Save file as GDS with filename
0_unit_1x1.gds
Run the script. And open the newly created GDS file in KLayout. You should see the below.
Use ruler tool in KLayout to confirm that the output dimensions are as expected.
Klayout Macro Development
Summary
- Part 1 : Use Python-KLayout to create shapes & export GDS (You are here!)
We have created simple shapes in KLayout using Python script. In Part 2, I will show you how to import GDS, and create multiple instances of imported cells. Stay tuned.
You can find all the codes corresponding to each part of the tutorial under my GitHub Repository.