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Cadsoft Eagle with Python Scripting

Former Member

Hi,

 

I've only started using Eagle a few weeks ago, and as much as I like it, I have found what I consider some pretty fundamental features just missing. As the built in scripting language is extremely restrictive (when compared to a 'real' language like python, lua or ruby), I made an attempt to get python running with Eagle.

 

http://www.youtube.com/watch?v=_w7CECR7Dv8

 

The above is a video of a project I have been working on for the pas 3-4 days, which basically involves exposing the Cadsoft ULP and SCR to python (albeit in not the fastest way). But it does allow me to now use 90% of the ULP and all of the SCR directly from python, including the Object Heirarchies, board.grid... schematic... which have all be exposed in a pythonic way.

 

as an example, to get all the Instances in the schematic..

 

instances = Eaglepy.ULSchematic().instances()

 

or loop,

 

for instance in Eaglepy.ULSchematic().instances():

     print instance.name()

 

etc..

 

The tools in the video were very quick to knock out.. the slowest bit was figuring out the papers for approximating cubic/quadratic bezier curves with arcs, for the DXF Importer. These should be the first of many tools to come, next on the list is a group manager so I can save my selectsion.

 

Hopefully when I have had time to test this a bit more I will release the code to the community, along with any tools I have built. for others who might want this funtionality. (something that should be out of the box with proper bindings to a proper language imo...)

 

Cheers

 

Rob.

  • in reply to autodeskguest

    On 22.02.2017 21:08, Doug Wellington wrote:

    FWIW, the Java ecosystem is fantastic.  The build, test, code analysis,

    continuous integration, etc., tools are great!

    For things like graphics, hardware interfacing, file formats,

    networking, GUIs etc. I found that development at the interpreter

    console provides the biggest boost in productivity.

    The only comparable language that I know, is Forth. But that one is

    a bit too special for most people...

     

    Regards,

     

    Dietmar

     

  • in reply to autodeskguest

    On 22.02.2017 21:08, Doug Wellington wrote:

    FWIW, the Java ecosystem is fantastic.  The build, test, code analysis,

    continuous integration, etc., tools are great!

    For things like graphics, hardware interfacing, file formats,

    networking, GUIs etc. I found that development at the interpreter

    console provides the biggest boost in productivity.

    The only comparable language that I know, is Forth. But that one is

    a bit too special for most people...

     

    Regards,

     

    Dietmar

     

  • in reply to autodeskguest

    Dietmar Schwertberger wrote on Wed, 22 February 2017 13:16

    Put your core C++ code into a .pyd (i.e. actually a DLL).  Still you

    can control your code from Python, offering a scripting interface without

    much effort.

     

    Yes, I use Python for the GUI and scripting, and the C++ is for the

    rendering and math functions (using a GPU).

     

    Quote:

    The wx license is not GPL. It is LGPL, but even allows to distribute

    binaries on your own terms. So basically, it's not much different from

    MIT, BSD or similar licenses for any practical application.

     

    That is very nice.

     

    Quote:

    (Python is) also a great language to implement large applications,

    either GUI or web based.

     

    Yes, I agree.  At my "real" job during the day, I use Python and QT for

    large applications every day.

     

     

    Quote:

    If you go for wx, you should have a look at the current wxGlade version

    from the repository.

     

    I will definitely look at that.  Thank you...

     

    Quote:

    I think there are quite powerful reverse engineering tools for compiled

    binaries.

     

    I have no illusions that a determined person would not be able to reverse

    engineer my work.  If they wish to go through that effort, that is up to

    them, but since I either give my tools away for free or charge a very small

    amount of money, I hope it is not worth their trouble.

     

    --

    EAGLE support forums at http://www.eaglecentral.ca :: Where the EAGLE community meets.

     

  • in reply to autodeskguest

    Dietmar Schwertberger wrote on Wed, 22 February 2017 13:36

    For things like graphics, hardware interfacing, file formats,

    networking, GUIs etc. I found that development at the interpreter console

    provides the biggest boost in productivity.

     

    Yes!  It's quite fun to use pyqt from the ipython prompt to interactively

    show and hide or manipulate various parts of my GUI.

     

    You can do similar things with various JVM languages that have REPLs.  For

    example, here's some Scala typed into the Ammonite REPL to create a popup

    window with a single button:

     

     

    @ {

      import javax.swing._, java.awt.event._

      val frame = new JFrame("Hello World Window")

     

      val button = new JButton("Click Me")

      button.addActionListener(new ActionListener{

        def actionPerformed(e: ActionEvent) = button.setText("You clicked the

    button!")

      })

      button.setPreferredSize(new java.awt.Dimension(200, 100))

      frame.getContentPane.add(button)

      frame.pack()

      frame.setVisible(true)

     

      }

     

     

    --

    EAGLE support forums at http://www.eaglecentral.ca :: Where the EAGLE community meets.