Thanks @Dave Finch for this great example! This is my favorite of all the Minecraft scripts out there already. I’ve update this great tool with a little more Python fancy schmanciness. Made it object oriented and added some functionality with the idea of upgrading the algorithm to generate the maze, make it 3D, and add some funkiness. Stay tuned!
Tag Archives: Programming
Headless RPi Gets it on with Dashing Arduino
These are my first explorations with the RaspberryPi in conjunction with Arduino. I try to keep things as simple as possible and only use Cygwin terminal to administer the Raspi remotely via ssh or sftp. Sometimes its just easier to use WinSCP to graphically drag and drop a bunch of files though. For forwarding X11 I use Cygwin’s installation of XWin on my Windows machine as the client. It’s as simple as setting the DISPLAY env variable and opening a ssh connection in conjunction with using the display forwarding option.
The Setup
- Windows 7 PC running Cygwin with XWin
- RaspberryPi running Raspbian — Debian Wheezy for RPi
- Arduino powered with an old Linksys modem DC adaptor
- Additional software: ssh, sftp, winSCP, Processing, Arduino, VICE
- All software is free and open-source
- All hardware is open-source and very cheap or salvaged!
Python in Maya: pyWin32 Clipboard Data Modules Update
Use windows clipboard data in your Maya Python scripts or other generic python.
Dependencies:
setuptools – You should have setuptools installed.
pip – If you have setuptools and/or use easy_install switch to pip by using easy_install to download and install pip, you won’t be sorry. Pip is awesome, setuptools sux. ![]()
pyWin32 – Use pip to download pyWin32 from the commandline using pip install pyWin32. Copy the installation to your Maya site-packages folder including any .pth, .txt, or .egg-info files. Tip: open .pth files in a text editor of choice and check out where pip’s libs are.
''' based on mel script found here: http://bit.ly/e4qdyH ''' import win32clipboard def getClipboardData(): win32clipboard.OpenClipboard() d = win32clipboard.GetClipboardData( win32clipboard.CF_TEXT ) win32clipboard.CloseClipboard() return d getClipboardData() def putClipboardData(text): win32clipboard.OpenClipboard() win32clipboard.EmptyClipboard() win32clipboard.SetClipboardText( text ) win32clipboard.CloseClipboard() t= 'test text' putClipboardData(t)
This is based on what I found on teacup’s techy art stuff, written a while ago. I though it deserved an update, plus I needed it for something specific. It is a really handy module to have in your repertoire. I posted these in a hurry so you probably need to add in some checks to make sure the datatype you are trying to retrieve is text only or else you’ll get errors.
PyQt and Qt obviously are way more powerful for getting other types of data including pixmap and slew of others. This is simplified for a specific purpose. Maybe soon I will be able to post a Qt version including drag and drop functionality.
Python in Maya: Recursively Add Directories to PYTHONPATH
Here’s a script I wrote for adding sub-directories of paths I’ve already added to the sys.path in my userSetup.py.
I’m just starting to code seriously in python and it seems like just getting everything to work right in Maya without a lot of fuss is pretty daunting for a beginner with little outside help except for the internet and a couple books.
As my Script Repo develops over time, I don’t want to have to keep worrying about PYTHONPATH having everything in it so I tell it where the root directories are and this script does the rest.
Hope somebody finds this helpful!
import sys from os import walk path = ja_python_paths for p in path: for root, dirs, files in walk(p): if p is not root: sys.path.append(root) #You can add an optional print statement at the end #to see what it's doing... if p is not root: print 'adding', root, 'to sys.path' sys.path.append(root)
PyQt in Maya
Lately, I’ve been working on learning how to develop PyQt UI tools with Maya. Since I work with Maya 2009 daily, I have had to do quite a lot of digging to find out how things were implemented smoothly for it to work with that version. Hopefully, this makes it easier to understand and appreciate it in 2011 and *gasp* :-O 2012, where PyQt is fully integrated! Anyway, if you are in the same predicament, then I should be able to help, send comments and emails my way.
Maya.env Configuration of Variables Using userSetup.mel and userSetup.py
userSetup.mel, userSetup.py Tutorial Part 2: Theory and Practical Use
For the Advanced user:
Delving into what how userSetup files work can be tedious. That’s why i’m posting how to configure Maya properly for those people who are perpetually scratching their heads, trying to figure out what way is better or why things aren’t working out like they planned. Check out my previous post on userSetup and see if you are pondering things after reading all of that. Of course, i’ve learned some things about the process too since then because my startup process is a lot more complicated than sourcing a couple of tools. I’m setting up whole programming environments! Learning Maya startup configuration has been a process of trial and error, searching and finding or sometimes not finding. Here’s the beef. Maya loads script paths in a specific order. Once you learn that order, the daunting task of setting configurations for a whole studio is as simple as pie. I work at a smaller studio, so the process of discovery falls on my shoulders and so I had to rise to the challenge.
Case Study: Finding the Solution to a Problem with userSetup.py
So where do you find the source code to decipher what’s really going on when Maya starts up? After finding this relic of a thread online, It crystallized one piece of the puzzle. I was having the hardest time figuring out why PYTHONPATH wasn’t working for all my scripts. After all, I was pointing it to find my userSetup.py and also my Maya2011 python\libs\site-packages directory so I can have access to all my downloaded modules yet my PyQt modules were failing to import while my userSetup modules were sourcing just fine.
Here's the order of how Maya finds scripts for python taken from the post linked above, which is directly from module: maya.app.startup.basic Per-version prefs scripts dir (eg .../maya8.5/prefs/scripts) Per-version scripts dir (eg .../maya8.5/scripts) User application dir (eg .../maya/scripts) Look for userSetup.py in the search path and execute it in the "__main__" namespace Set up sys.path to include Maya-specific user script directories. Set up auto-load stubs for Maya commands implemented in libraries which are not yet loaded Run the user's userSetup.py if it exists Register code to be run on exit
Script Repo Help: Using TiddlyWiki for Mel & Python Documentation
I started to get inspired to start writing documentation again for my script repository yesterday and the brilliance quickly became marred by the thought of how daunting that task can become. It’s a necessary part of the process though and starting somewhere is unavoidable at this point since the organization of the repo is quickly growing beyond what a directory structured system can handle. Documentation is increasingly hard to dig up and it’s much nicer for the tools to be indexed all in one place in a textual and graphical format, even adding tutorial vids for workflows being used when using specific tools or a tool set. I know html is the solution for many of this but how cumbersome it is to use.
In comes TiddlyWiki onto the scene again after having been distracted for a while and not concerning myself with writing help files since I have been busy. I felt motivated again after having read Morgan Loomis’ blog post and seeing his small but effective wiki used for this very purpose. Morgan has links to Scienceoss.com where another useful Python script will create tiddlers for your wiki automatically. Wow, it works great from the command-line but also from inside Maya 2009 which i’m using for rigging stuff. Now if I write a script in Maya I can use this tidder script to automatically update my script repo help wiki thus cutting down the time i’m working inside the wiki editor. Amazing and helpful and it even supports images and resizing images!
Example tidder creation script:
import sys
sys.path.append('N:\Scripts\Python')
from addtiddler import addtiddler
addtiddler('N:\Scripts\Help\script_repo_help.html',
image='images/asaro_head.jpg',
description='test image',
tags='images',
author='JA',
title='Asaro Head',
resize=True,
replace=True)
_____________
Links:
http://scienceoss.com/insert-content-into-tiddlywikis-with-this-python-script/
http://scienceoss.com/use-sphinx-for-documentation/
Bungie Halo Reach: Pymel Scripting
Halo Reach is finally out and i’ve been on it almost every day since it came out this week. I am now a proud owner of the Legendary edition! Flame-on! Let’s hope I can keep up my work
Working on Halo even in a relatively limited fashion, not being on the Bungie team but Image Metrics, is quite satisfying.
Working a technical directing capacity on this game gave me a chance to further develop my pymel prowess and write some tools for me and another team member to use to integrate Reach scenes into our animation pipeline. Doing this drastically cut down the amount of time to process what seemed like close to a hundred scenes. Here are a couple of examples of pymel GUIs I put together to run the tools.
Check out these links on Reach:
- PyMel GUI I
- PyMel GUI II
- Do smell something cooking?






