CODEWITHSUNDEEP
javaprocessing
mMade
mMade

Reputation: 25

Make PApplet Classes communicate with Java code

I am trying to use this SDK (for IntelRealSense Cameras) written in Processing in my Java code. What I did was I took the java source code and made a project with it. So I can run processing sketches directly from my Intellij Java environment using the Processing library.

My question is, can the classes that extend the PApplet class and show the sketches interact with other classes in the Java code ( that are not PApplets )? For example, can I create a Main class to launch both the PApplet sketch and a vanilla Java program as well with them being able to communicate?

The goal is to to integrate this PApplet source code into an existing Java project as a module that can transmit information.

All in all, my objective is to : Run concurrently the PApplet and my Java program and transmit the camera values from the PApplet to my Java Classes.

Is it possible? I mean Processing is Java so It should be, right?

Thank you

Upvotes: 1

Views: 792

Answers (1)

Kevin Workman
Kevin Workman

Reputation: 42174

The short answer to your question is yes it's possible.

Shameless self-promotion: here is a tutorial on using Processing from Java.

I recommend you read through that, but in summary, you want to do something like this:

import processing.core.PApplet;

public class MySketch extends PApplet{

    public void settings(){
        size(500, 500);
    }

    public void draw(){
        ellipse(mouseX, mouseY, 50, 50);
    }

    public void mousePressed(){
        background(64);
    }

    public static void main(String[] args){
        String[] processingArgs = {"MySketch"};
        MySketch mySketch = new MySketch();
        PApplet.runSketch(processingArgs, mySketch);

        // call whatever Java code you want
    }
}

Note that the main() method does not have to be in the same class that extends PApplet.

This is all "just" Java, so anything that's valid in Java, is valid in a Java program that uses Processing as a Java library.

Upvotes: 3

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