Can I use a vector ImageTracer.java class inside processing.

Leo_D

Hello. I'm some what new to processing: Question?

I recently came across a java class for vector image tracing on GitHub that I would like to use but I am not sure how to make it work inside processing.

Any suggestions how I can use the class or .jar file inside processing? Thanks.

https://github.com/jankovicsandras/imagetracerjava

Code snippet of the class...

package jankovicsandras.imagetracer;

import java.awt.image.BufferedImage;

import java.io.BufferedWriter;

import java.io.File;

import java.io.FileWriter;

import java.util.ArrayList;

import java.util.HashMap;

import java.util.Map.Entry;

import java.util.TreeMap;

import javax.imageio.ImageIO;

public class ImageTracer{

public static String versionnumber = "1.1.2";



public ImageTracer(){}



public static void main (String[] args){

    try{



        if(args.length<1){

            System.out.println("ERROR: there's no input filename. Basic usage: \r\n\r\njava -jar ImageTracer.jar <filename>"+

                    "\r\n\r\nor\r\n\r\njava -jar ImageTracer.jar help");

        } else if(arraycontains(args,"help")>-1){

            System.out.println("Example usage:\r\n\r\njava -jar ImageTracer.jar <filename> outfilename test.svg "+

                    "ltres 1 qtres 1 pathomit 8 colorsampling 1 numberofcolors 16 mincolorratio 0.02 colorquantcycles 3 "+

                    "scale 1 simplifytolerance 0 roundcoords 1 lcpr 0 qcpr 0 desc 1 viewbox 0 blurradius 0 blurdelta 20 \r\n"+

                    "\r\nOnly <filename> is mandatory, if some of the other optional parameters are missing, they will be set to these defaults. "+

                    "\r\nWarning: if outfilename is not specified, then <filename>.svg will be overwritten."+

                    "\r\nSee https://github.com/jankovicsandras/imagetracerjava for details. \r\nThis is version "+versionnumber);

        } else {



            // Parameter parsing

            String outfilename = args[0]+".svg";

            HashMap<String,Float> options = new HashMap<String,Float>();

            String[] parameternames = {"ltres","qtres","pathomit","colorsampling","numberofcolors","mincolorratio","colorquantcycles","scale","simplifytolerance","roundcoords","lcpr","qcpr","desc","viewbox","blurradius","blurdelta","outfilename"};

            int j = -1; float f = -1;

            for (String parametername : parameternames) {

                j = arraycontains(args,parametername);

                if(j>-1){

                    if(parametername=="outfilename"){

                        if( j < (args.length-1)){ outfilename = args[j+1]; }

                    }else{

                        f = parsenext(args,j); if(f>-1){ options.put(parametername, new Float(f)); }

                    }

                }

            }// End of parameternames loop



            // Loading image, tracing, rendering SVG, saving SVG file

            saveString(outfilename,imageToSVG(args[0],options,null));



        }// End of parameter parsing and processing



    }catch(Exception e){ e.printStackTrace(); }

}// End of main()

GoToLoop

https://Forum.Processing.org/two/discussion/15473/readme-how-to-format-code-and-text

• For ".java" source code, you can simply copy the file in the same folder your other ".pde" files are.
• Or you can create a new tab in the PDE suffixing it w/ ".java".
• Then copy and paste or type in the contents of your ".java" file there.
• If you've already got its ".jar" file, you can drag and drop it directly in the PDE.
• Then a subfolder "code/" is gonna be created and the ".jar" file is gonna be copied there.
• However, if you prefer that your ".jar" library to be available globally in the PDE, read this wiki article: https://GitHub.com/processing/processing/wiki/How-to-Install-a-Contributed-Library

Leo_D

Thank you for the tips and article. I will give it a try.