add_library('proscene')

I've got the next error message:

java.lang.NoClassDefFoundError: android/view/MotionEvent at java.lang.Class.getDeclaredMethods0(Native Method)

I've already installed the proscene library.

Specifically, I'm trying to use the Serial library. Guessing the syntax from the Java documentation, I have:

add_library('serial')

def setup():
    #setup the serial port
    print Serial.list()
    portIndex = 4
    LF = 10
    print "Connecting to ", Serial.list()[portIndex]
    myPort = Serial(Serial.list()[portIndex], 9600)   # this seems to need a first argument referring to the sketch object (analagous to "this" argument in Java)
    myPort.bufferUntil(LF)
    
def draw():
    pass
    
def serialEvent(evt):
    inString = evt.readString()
    print inString

Anyone have any advice on making this work?

As a side note, it would be nice to add a processing.py as a subcategory in the forums under "Questions and Modes".

add_library('G4P')

text_area = None

def setup():
    size(600, 600)
    global text_area
    text_area = GTextArea(this, 80, 20, 290, 300, G4P.SCROLLBARS_BOTH | G4P.SCROLLBARS_AUTOHIDE)
    text_area.setPromptText("Please enter some text");

def draw():
    background(100)
    text_area.draw()

From examples in the Java info for The MIDIBus library I am getting something that looks like it is the midi clock info with this:

  import themidibus.*; //Import the library
  MidiBus myBus; // The MidiBus

  void setup() {
    size(400, 400);
    background(0);

    myBus = new MidiBus(this, 0, 0); // Create a new MidiBus object
  }

  // Notice all bytes below are converted to integeres using the following system:
  // int i = (int)(byte & 0xFF) 
  // This properly convertes an unsigned byte (MIDI uses unsigned bytes) to a signed int
  // Because java only supports signed bytes, you will get incorrect values if you don't do so

  void rawMidi(byte[] data) { // You can also use rawMidi(byte[] data, String bus_name)
    // Receive some raw data
    // data[0] will be the status byte
    // data[1] and data[2] will contain the parameter of the message (e.g. pitch and volume for noteOn noteOff)
    println();
    println("Raw Midi Data:");
    println("--------");
    println("Status Byte/MIDI Command:"+(int)(data[0] & 0xFF));
    // N.B. In some cases (noteOn, noteOff, controllerChange, etc) the first half of the status byte is the command and the second half if the channel
    // In these cases (data[0] & 0xF0) gives you the command and (data[0] & 0x0F) gives you the channel
    for (int i = 1;i < data.length;i++) {
      println("Param "+(i+1)+": "+(int)(data[i] & 0xFF));
    }
  }

but when I try translating this into python it doesn't like taking byte[] as a variable in rawMidi. This is how I tried to do it in python (excluding the superfluous stuff):

add_library('themidibus')

def setup():
    global myBus
    myBus = MidiBus(this, 0, 0)

def rawMidi(byte[] data):
    println()
    println("Raw Midi Data:")
    println("--------")
    println("Status Byte/MIDI Command:"+ int(data[0] & 0xFF))

I apologise if my question is a bit jumbled - not an experienced programmer at all.

So, is there a way to get what hardware the Processing sketch is running on so I can wrap certain Pi specific libraries such as "import processing.io.*;" conditionals so they only run when the sketch is running on the PI and not my Mac?

The reason is that I'd prefer not to have to comment out blocks of code before I can work on my machine and then uncomment these blocks before I commit to the project repo. Seems like a bit of a risk having to do this.

If there are other ways of accomplishing this workflow dev. on mac and production on pi with io requirements I'd love to know about them!

Cheers,

Here is the code:

    import dmxP512.*;
    import processing.serial.*;

    DmxP512 dmxOutput;       // How to read and convert this line
    int universeSize = 512;

    String DMXPRO_PORT = "/dev/tty.usbserial-ENY46I7I";
    int DMXPRO_BAUDRATE = 115000;

    void setup() {  
      size(245, 245, JAVA2D);    
      dmxOutput = new DmxP512(this,universeSize,false);       // How to read and convert this line
      dmxOutput.setupDmxPro(DMXPRO_PORT,DMXPRO_BAUDRATE);    
    }

    void draw() {     
      background(0);
      dmxOutput.set(1,mouseX);
      dmxOutput.set(5,mouseY);
    }

Would be very thankful for some help with this. Cheers, Volker

add_library('javax.sound.midi.MidiMessage')

but the sketch compiling fails because it cannot find those libraries. the error is:

"Exception: This sketch requires the "javax.sound.midi.MidiMessage" library"

if i try importing the libraries from a Java sketch everything works fine.

do you know what i'm doing wrong? or do you know how i can "install" those libraries for the python interpreter?

Thanks!

This code is running ok, except the video (webcam capture) is only returning a black frame - I can see the webcam light is on whilst running this code. I couldn't find a working example in the Python examples or the openCV python examples either. Any help is much appreciated!

add_library('video')

from random import randint


def setup():

    global video

    size(1280, 720, P3D)

    video = Capture(this, 640, 480)
    video.start()


def draw():
    print randint(0,9)
    image(video, 0, 0)

add_library('peasycam')

class MyObject(object):
    dim = 40
    x =0
    y=0
    z = 0
    picked = False
    c_face = color(255)


    def pick (self, xp, yp):
        if (dist(xp,yp,screenX(x,y,z), screenY(x,y,z))<dim):
            MyObject.picked = True
        else:
            MyObject.picked = False

    def draw3(self):
        if (MyObject.picked == True):
            fill(255,0,0)
        else:
            fill(MyObject.c_face)
        box(MyObject.dim)

b =  MyObject()

def setup():

    size(200,200,P3D)
    #PeasyCam(this,100)
    camera(-100,100,-100,0,0,0,0,0,1)

def draw():

    b.draw3()

    def mousePressed():
        b.pick(mouseX,mouseY)

I use Python type function to check the datatypes of the Vec3D object and its 'x' attribute and I get:

<type 'toxi.geom.Vec3D'>
<type 'instancemethod'>

And here is the code I mention:

add_library('toxiclibscore')

vector = 1

def setup():
    size(200,600)
    vector = Vec3D(width/2,height/2,0)
def draw():
    print(type(vector.x))
    ellipse(vector.x ,vector.y, 3, 3)

import controlP5.*;
ControlP5 cp5;
PImage pic;
void setup() {
  size(400, 400);
  cp5 = new ControlP5(this);
  pic = loadImage("bucky.jpg");
  Group t = cp5.addGroup("group-test").setPosition(100, 100).setWidth(200);
  cp5.addSlider("slider").setPosition(0, 10).moveTo(t);
  t.addDrawable(new CDrawable() {
    public void draw(PApplet p) {
      p.pushMatrix();
      p.image(pic,0,5,200,150);
      p.popMatrix();
    }
  }
  );
}

void draw() {
  background(0);
}

I tried this, but I get a NullPointerException.

add_library('controlP5')
pic = loadImage("bucky.jpg")

def setup():
    size(500,500)
    cp5 = ControlP5(this) 
    g = cp5.addGroup('blah') \
           .setPosition(50,50) \
           .setWidth(250) 
    g.addDrawable(image(pic,0,0,250,150))

def draw():
    background(0)  

Does anybody have a clue? Thank you all.

Marco