JSONObject json;
File saving;
File loading;

void setup() {
  json = new JSONObject();

}

void draw(){

}

void mousePressed() {
  selectInput("Select a file to process:", "fileSelected");
  saveJSONObject(json, saving.getAbsolutePath());
}




void fileSelected(File selection) {
  saving = selection;
  if (selection == null) {
    println("Window was closed or the user hit cancel.");
  } else { 
    println("User selected " + selection.getAbsolutePath());
  }
}

https://www.processing.org/reference/selectInput_.html

The issue I am having is that the code in my Setup and Draw function is starting to execute before I select a file.

I need my sketch to wait until I choose a file then proceed.

Any ideas?

Thanks.

Phil

    void setup() {
      selectInput("Select a file to process:", "fileSelected");

      size(img.width, img.height);


    }

    void draw() {  



    }




    void fileSelected(File file) {
      if (file == null) {
        println("Window was closed or the user hit cancel.");
      } else {
        println("User selected " + file.getAbsolutePath());
        img = loadImage(file.getPath());  // Load the image into the program  


      }
    }

Is there a way to import files while the sketch is currently beeing excecuted? E.g.: I have a button(controlp5) and when pressed it opens my filemanager and lets me pick a picture for instance.

For my application i want to change an 3D object, so a .mtl - File. My hopes aren't high, that this is possible but maybe someone has an idea. :D

Here's my issue -- I have a Processing script that loads in a text file, parses it out and sends some info to an Arduino board. It works great, but I'd like to present the operator with the option of selecting a file, but I'm having trouble getting my head around the concept of "callback" stuff and in specific how to use it with the selectInput() function.

For the purposes of this, I have stripped out all the other stuff and just have the file load bits...

String[] protocol;
String[] fname;
int flag=0;

void setup() {
  selectInput("Select a file to process:", "fileSelected");
  while(flag==0){
    if(protocol!=null){
      flag=1;
    }
  }
  println(protocol[0]);  
}

void fileSelected(File selection) {
  if (selection == null) {
    println("Window was closed or the user hit cancel.");
  } else {
    println("User selected " + selection.getAbsolutePath());
    protocol = loadStrings(selection.getAbsolutePath());
  }
}

My idea is that by putting the while loop it should hold the code until the variable protocol has something other than null. I have a feeling that I'm barking up the wrong tree with this and that null is the wrong thing to be checking for?

Any ideas or links to some tutorials or whatever would be greatly appreciated!!

Greg

and another thing: how do i load the text in txt into the document, by clicking on another button :)

thanks in advance :)

String str = "";

void setup(){
  size(400,400);
}

void draw(){
  background(0);
  fill(255);
  text(str,20,20,100,height-20);
  fill(128);
  if( over() ){
    fill(196);
  }
  rect(width-20,height-20,20,20);
}

boolean over(){
  return( mouseX>width-20 && mouseY > height-20 );
}

void keyPressed(){
  if( keyCode == DELETE || keyCode == BACKSPACE ){
    if( str.length() > 0 ){
      str = str.substring(0, str.length()-1);
    }
  } else {
    if( key != CODED ){
      str += key;
    }
  }
}

void mousePressed(){
  if( over() ){
    saveIt();
  }
}

void saveIt(){
  String[] strs = { str };
  saveStrings( "text.txt", strs );
}

boolean key_command;
boolean key_open;
int COMMAND_KEY = 157; // apple-command key

void setup()
{
  size(100, 100);
  key_command = false;
  key_open = false;
}

void draw() 
{
}

void keyPressed()
{
  if (key == CODED) {
    if (keyCode == COMMAND_KEY) {
      key_command = true;
    }
  }

  if (key == 'o' || key == 'O')
    key_open = true;

  checkComboKeys();
}

void keyReleased()
{    
  println("keyReleased()");
  resetComboKeys();
} 

void checkComboKeys() {
  if (key_command && key_open) { // command-apple + O
    println("command + O pressed");
    openFile();
  }
}

void resetComboKeys() {
  key_command = false;
  key_open = false;
}

void openFile() {
  selectInput("Select a file to open:", "openSelected");
}

void openSelected(File selection) {
  if (selection == null) {
    println("Window closed or cancelled.");
  } else {
    println("User selected: " + selection.getAbsolutePath());
  } 
}

This program I've made is designed to read data from a csv file and output it to an arduino (which will in turn eventually output it to a motor). Strangely, it runs just fine without the Arduino plugged in, but with the Arduino plugged in it starts freezing every one or two seconds after the first eight seconds or so. I presume some buffer somewhere is being filled up and is not clearing itself fast enough, but I have no idea where. Any thoughts?

/*  CSV_READER
    Version 3.4

    Improvements from last version:
    - 

    Improvements to be made:
    - Begins to freeze when Arduino plugged in

*/

import processing.serial.*;

int xpos=90; // set x servo's value to mid point (0-180);
int ypos=90; // and the same here
Serial port; // The serial port we will be using
Table table;
final int motorPulley = 17; //number of teeth on the pulley
final int enginePulley = 51;
final int calibrationFactor = (2880 * (enginePulley/motorPulley))/360; //2880 = max rpm of motor
int rowCount = 1;
int timeResolution; //the time interval in ms of the chosen data file
boolean fileSelected = false;
boolean run = false;
boolean pause = false;
boolean stop = false;
int time, rpm;
boolean debounce = true; //ensures button is released before it can be pressed again
int stopCount = 0; //how long before program closes
int timeRunning = 0; //time the program has spent running
int timePaused = 0;
String fileName;

void setup() 
{
  size(360, 360, P2D);
  background(50);

  selectInput("Select a file to process:", "fileSelected");
  //table = loadTable(file, "header");

  frameRate(1000); //sets framerate

  //println(Serial.list()); // List COM-ports
  port = new Serial(this, Serial.list()[5], 9600);


}

void fileSelected(File selection) //selects the file
{
  if (selection == null) 
  {
    println("Window was closed or the user hit cancel.");
  } 
  else 
  {
    println("User selected " + selection.getAbsolutePath());
    fileName = selection.getName();
    table = loadTable(selection.getAbsolutePath(), "header");
    fileSelected = true;
    TableRow row1 = table.getRow(1);
    TableRow row2 = table.getRow(2);
    int time1 = row1.getInt("time");
    int time2 = row2.getInt("time");
    timeResolution = time2 - time1;
  }
}

void draw() 
{
  while (fileSelected == false) //Does not run unti a file has actually been selected
  {
    delay(1);
  }

  clear();
  //println(frameRate); //use for testing a specific variable

  if (stop == false) //normal running section of program
  {
      if (run == true) //loads row data
      {
        timeRunning = millis() - timePaused;
        nextRow();
      }

      else
      {
        timePaused = millis() - timeRunning;
      }

      //println(rpm);
      update(0, rpm/calibrationFactor); //update serial signal being sent to arduino

      strokeWeight(10);
      stroke(0, 191, 255);
      fill(0, 0, 0);
      //ellipse(180, 180, rpm/24,rpm/24);
      arc(180,180,180,180, 0, radians(rpm/24)); //draws an arc whic represents the rpm value
      fill(255);
      text(rpm, 163, 185);
      text("rpm",166,195);
      text((float) time/1000, 30, 230);
      text("time (s)", 30, 240); //displays the time and rpm values
      text(fileName,30,30);
      text("timeR: " + (float) timeRunning/1000, 30, 260);

      if (run == false) //displays start button
      {
       strokeWeight(0);
        fill(51,255,51);
       rect(160,320,50,20);
       fill(0);
       text("START",165,332);


      }

      if (run == true) //displays pause button
      {
        strokeWeight(0);
        fill(255,153,51);
       rect(160,320,50,20);
       fill(0);
       text("PAUSE",165,332);

      }

      strokeWeight(0);
        fill(255,0,0);
       rect(230,320,50,20);
       fill(0);
       text("STOP",235,332);  

      if (mousePressed && overRect(160,320,50,20) && debounce) //detects if start/pause button has been pressed
       {
         debounce = false;
         if (run == false)
           run = true;
         else if (run == true)
           run = false;
        }

      if (mousePressed && overRect(230,320,50,20) && debounce)
      {
        stop = true;
      }

      if (rowCount >= table.getRowCount()) //end program when end of file is reached
      {
        stop = true;
      }
  }

  else if (stop == true)
  {

    fill(255);
    text("Run finished",150,160);
    stopCount++;
    if (stopCount >= 500)
      exit();
  }
}

boolean overRect(int x, int y, int width, int height) //checks to see if the mouse is over the defined rectangle
{
  if (mouseX >= x && mouseX <= x+width && 
      mouseY >= y && mouseY <= y+height) {
    return true;
  } 
  else 
  {
    return false;
  }
}

void nextRow() //loads data from the next row in the table
{
  TableRow row = table.getRow(rowCount);
  time = row.getInt("time");
  if (time <= timeRunning) //loads new rpm if we have reached that time
  {
    rpm = row.getInt("rpm"); 
    rowCount++;
  }
  if(time + timeResolution < timeRunning) //catches up if it falls behind
  {
     rowCount++; 
     println(rowCount);
  }

}

void mouseReleased() //ensures mouse is released before it can be pressed again
{
   debounce = true; 
}

void update(int x) //updates output to arduino
{
  //Calculate servo postion from mouseX
  xpos= x/2;
  ypos = y/2;
  //Output the servo position ( from 0 to 180)
  port.write(xpos+"x");
  port.write(ypos+"y");
}

Thanks in advance

I am rewriting some code for P3. My aim is to fill up a PImage object with input image file data, selected with the new select-methods (such as https://processing.org/reference/selectInput_.html) and afterwards adjust the surface size depending on this PImages width and height.

This is an exampe code:

PImage input;

void setup() {
  size (200, 200);
  surface.setResizable(true);
  selectInput("Select an image to process", "imageSelected");
  surface.setSize(input.width, input.height);
}

void imageSelected(File selection) {
  if (selection == null) {
    println("Window was closed or the user hit cancel.");
  } else {
    input = loadImage (selection.getAbsolutePath());
  }
}

It seems the interpreter can not wait until an input-file is picked (No clue about the selection window). It instantly neeeeeeds to run the setSize method - and crash (throws NullPointerException, because "input.width" is not available, because he wants it way to soon)! Is there another solution to my attempt? I think it is a decent desire, to set surface properties as a function of selected input. At least it is what my client desires ;)

Cheers!

Table dotdata;
String filepath="";
String savefilepath="";
int columncount= 0;
int rowcount=0;

void setup() {
  size(500, 500);
  background(0);
  dotdata=new Table();
}

void draw() {
  selectInput("Select .txt file", "fileSelected");

  while (filepath=="") {
  };

  dotdata = loadTable(filepath, "tsv");
  print("hello");

  for (int i=0; i<7; i++) {
    dotdata.removeRow(0);
  }
  dotdata.removeColumn(5);
  dotdata.removeColumn(4);
  dotdata.removeColumn(1);
  dotdata.removeColumn(0);

  dotdata.addColumn();
  dotdata.addColumn();
  dotdata.addColumn();

  //int columncount= dotdata.getColumnCount();
  int rowcount=dotdata.getRowCount();


  for (int i=0; i<rowcount; i++) {
    dotdata.setFloat(i, 2, dotdata.getFloat(i, 0)+150);
    dotdata.setFloat(i, 3, dotdata.getFloat(i, 1)-150);
  }

  for (int i=0; i<rowcount; i++) {
    dotdata.setString(i, 4, str(dotdata.getFloat(i, 2)) + "," + str(dotdata.getFloat(i, 3)));
  }

  filepathnaming();

  saveTable(dotdata, savefilepath);
  exit();
}



void fileSelected(File selection) {
  if (selection == null) {
    println("Window was closed or the user hit cancel.");
    exit();
  } else {
    filepath=selection.getAbsolutePath();
  }
}

void filepathnaming() {
  savefilepath="";
  String[] filepathlist = split(filepath, "\\");

  for (int i=0; i<filepathlist.length-1; i++) {
    savefilepath +=filepathlist[i]+ "\\";
  }

  savefilepath += filepathlist[filepathlist.length-1].substring(0, filepathlist[filepathlist.length-1].indexOf(".txt"))+"_update.csv";

  println(savefilepath);
}

Table table;
String myFilePath;
TableRow row;
float Time;
float Manom;
float Temp;
float P1;
float GV1;
float P2;
float GV2;
float P3;
float GV3;
float P4;
float GV4;
float P5;
float GV5;
float P6;
float GV6;
float x;
int var;
Bubble[] bubbles;


void setup() {
  size(1000, 800);
  surface.setResizable(true);
  selectInput("Select a file to process:", "fileSelected");
  loadData();
}

void fileSelected(File selection) {
  myFilePath = selection.getAbsolutePath();
  table = loadTable(myFilePath, "header");
}

void draw(){
  if(table == null){
    background(0,0,155);
    noLoop();
  } else {
    background(155,50,50);
    for (int i = 0; i < bubbles.length; i++) {
    bubbles[i].display();
    }
  }
}

void loadData(){
  if (table != null){
    background(70);
    table = loadTable(myFilePath, "header");
    bubbles = new Bubble[table.getRowCount()]; 
    for (int i = 0; i < table.getRowCount(); i++){
      row = table.getRow(i);
      Time = row.getInt("Time (s)");
      Manom = row.getFloat("1");
      Temp = row.getFloat("2");
      P1 = row.getFloat("3");
      P2 = row.getFloat("4");
      P3 = row.getFloat("5");
      P4 = row.getFloat("6");
      P5 = row.getFloat("7");
      P6 = row.getFloat("8");
      GV1 = row.getFloat("9");
      GV2 = row.getFloat("10");
      GV3 = row.getFloat("11");
      GV4 = row.getFloat("12");
      GV5 = row.getFloat("13");
      GV6 = row.getFloat("14");
      x = map(Time, 0, table.getRowCount(), 100, 900);
    }
  }
}

Main code with class Bubble

class Bubble {
  float x,y;
  float diameter;


  Bubble(float x_, float y_, float diameter_) {
    x = x_;
    y = y_;
    diameter = diameter_;
  }


  void display() {
    stroke(0);
    strokeWeight(2);
    noFill();
    ellipse(x,y,diameter,diameter);
  }
}

running this code gives me this error

inb4 i know that code is huge pile of bs but i need it to work

catching a lot of errors trying to pass lorem array into load.dissasemble2array

main

int lngth = 10000; 
int scaleX = 5;
int scaleY = 2;
String fileName = new String();
String[] lorem = new String[lngth];
int[][] endArray = new int[lngth][10];
int[][] smoothArray = new int[lngth][10];
drawGraph graph;
fileLoad load;
void setup() {
  noLoop();
  size(1800, 600);
  graph = new drawGraph();
  selectInput("Select a file to graph: ", "fileSelected");
}
void fileSelected(File selection) {
  if (selection == null) {
    println("Window was closed or the user hit cancel.");
    exit();   
  } else {
    println(selection.getAbsolutePath());
    fileName = selection.getAbsolutePath();
    println(fileName);
    lorem = loadStrings(fileName);
    endArray = load.disassemble2array(lorem);
    smoothArray = load.smoothen(endArray);
  }
}
void draw() { 
  background(0); 
  stroke(50);
  fill(255);
  for (int i = 0; i < height; i = i+scaleY*10) {
    line(20, height - i, width, height - i);
    text(i / scaleY, 5, height - i);
  }
  stroke(255);
  graph.drawAll(smoothArray, lngth, scaleX, scaleY);
}
void mousePressed() {
  if ((scaleX-1 != 0) && (scaleY+1 != 0) && (mouseButton == LEFT)) {
    scaleX--;
    scaleY++;
    redraw();
  } else if ((scaleX+1 != 0) && (scaleY-1 != 0) && (mouseButton == RIGHT)) {
    scaleY--;
    scaleX++;
    redraw();
  }
}

fileLoad

class fileLoad {
  int k = 0;
  int s = 0;
  int p = 0;
  int last_s;
  int[][] disassemble2array(String[] lorem) {
    //String[] lorem = loadStrings(fileName);
    int[][] temp = new int[lorem.length][10];
    for (int i = 0; i < lorem.length - 1; i++) {
      last_s = 0;
      for (s = 0; s < lorem[i].length() - 1; s++) {
        if (lorem[i].charAt(s) == ';') {
          temp[i][p] = int(lorem[i].substring(last_s, s));
          //println(temp[i][p]);
          last_s = s + 1;
          p++;
        }
      }
      temp[i][p] = int(lorem[i].substring(last_s, s+1));
      //println(temp[i][p]);
      //println();
      s = p = 0;
    }
    return temp;
  }
  int[][] smoothen(int[][] arr) {
    for (int i = 12; i < arr[i].length - 12; i++) {
      for (int col = 1; col < arr[i].length-1; col++) {
        arr[i][col] = (arr[i-12][col] + arr[i-11][col] + arr[i-10][col] + arr[i-9][col] + arr[i-8][col] + arr[i-7][col] + arr[i-6][col] + arr[i-5][col] + arr[i-4][col] + arr[i-3][col] + arr[i-2][col] + arr[i-1][col] + arr[i][col] + arr[i+1][col] + arr[i+2][col] + arr[i+3][col] + arr[i+4][col] + arr[i+5][col] + arr[i+6][col] + arr[i+7][col] + arr[i+8][col] + arr[i+9][col] + arr[i+10][col] + arr[i+11][col] + arr[i+12][col])/25;
      }
    }
    return arr;
  }
}

errors

java.lang.reflect.InvocationTargetException
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke(Method.java:498)
    at processing.core.PApplet.selectCallback(PApplet.java:6484)
    at processing.core.PApplet.access$0(PApplet.java:6477)
    at processing.core.PApplet$3.run(PApplet.java:6389)
    at java.awt.event.InvocationEvent.dispatch(InvocationEvent.java:311)
    at java.awt.EventQueue.dispatchEventImpl(EventQueue.java:756)
    at java.awt.EventQueue.access$500(EventQueue.java:97)
    at java.awt.EventQueue$3.run(EventQueue.java:709)
    at java.awt.EventQueue$3.run(EventQueue.java:703)
    at java.security.AccessController.doPrivileged(Native Method)
    at java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(ProtectionDomain.java:76)
    at java.awt.EventQueue.dispatchEvent(EventQueue.java:726)
    at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:201)
    at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:116)
    at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:105)
    at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:101)
    at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:93)
    at java.awt.EventDispatchThread.run(EventDispatchThread.java:82)
Caused by: java.lang.NullPointerException
    at test_file_sketch.fileSelected(test_file_sketch.java:53)
    ... 21 more

import g4p_controls.*;
import processing.sound.*;    

GButton buttonSong, buttonGo;
SoundFile soundfile;
Amplitude rms;

boolean playing, selected = false;
float sum;
int map, frames;

void analyzeSetup(){
    rms = new Amplitude(this);  
    }

void analyzeDraw(){
     if(frameCount%60 == 0 && playing == true){

      sum += (rms.analyze() - sum) * 0.75;
      map = (int) map(sum, 0, 0.5, 0, 180);

      frames = frames+1;
      println(sum," - ",frames," - ",map);
    }
}

void selectSong(){  
  buttonSong = new GButton(this, 180, 20, 25, 25);
  buttonSong.setText("...");
  buttonSong.addEventHandler(this, "openSong");
 }

public void openSong(GButton source, GEvent event) { 
  selectInput("Please select an .mp3", "pathToString");
}

void pathToString(File selection){
  song = selection.getPath(); 
  selected = true;
  soundfile = new SoundFile(this, song);
  rms.input(soundfile);
}

void startProgram(){
  buttonGo = new GButton(this, 210, 430, 80, 50);
  buttonGo.setText("Go!");
  buttonGo.addEventHandler(this, "Go");
}

public void Go(GButton source, GEvent event) { 
  if(selected == true){
    soundfile.play();
    playing = true;
  }
}

analyzeSetup(), selectSong() and startProgram() are in the main setup()-method, analyzeDraw() is in the main draw()-Method. The problem is that the song starts playing when clicking the Go-Button, but it doesn't seem to get analyzed, since sum and map constantly stay 0. My guess is to relocate the assignment of the soundfile and the rms.input. i've already played around a lot, but nothing worked. i hope someone can help me here.

thanks in advance. best regards, raiu.

import static javafx.stage.FileChooser.ExtensionFilter;
import javafx.stage.FileChooser;


protected File selectFilteredInput(String title, ExtensionFilter... filters) {

  //my code
  FileChooser fileChooser = new FileChooser();
  fileChooser.setTitle(title);
  fileChooser.getExtensionFilters().addAll(filters);
  File selectedFile = fileChooser.showOpenDialog(null);
  return selectedFile;
}  

Follow what I say here to install the JavaFX library.

i'm pretty new to all this and working on a project for uni i came across a small problem.

the whole thing is an audio visualisation and the user should be be able to choose the song (.mp3) he wants to use for it from the file browser. as far as i know you do this with selectInput() which returns the type "file", to use it with the audio library however, i need it as an audiofile. i haven't found a way to cast a normal file to an audio file or another way to get an audio file via the browser. basically i would only need the path or file name (if the file is in the data folder) saved to a string.

can anyone please help me with this? .-.

-raiu

What do I need to do to make this work?

Thanks in advance.

code:

import processing.video.*;
Movie mov;
String fileName;

void setup() {
  size(800, 800);
}  

void draw() {
}

void keyPressed() {
  if (key == 'p') selectInput("Select movie:", "movieSelected");
}

void movieSelected(File selection) { 
  if (selection == null) {
    println("Window was closed or the user hit cancel.");
  } else {
    fileName = selection.getAbsolutePath();
    mov = new Movie(this, fileName);

    String[] processCommands = {
      "E:/Tertiary/COMP390/Movie Second/ffmpeg/bin/ffmpeg.exe", 
      "ffmpeg", "-i", "mov", "-codec:a", "libmp3lame", "-qscale:a 2", "fileName" + "output.mp3"
    };
    Process p = launch(processCommands);

    try {
      int result = p.waitFor();
      println("the process returned " + result);
    } 
    catch (InterruptedException e) {
    }
  }
}

int io=0;
int counter=0;
PFont myFont;
String[] test;
String[] test2;

void setup(){
  size(512, 512);
  smooth();
  background(0);
  myFont = createFont("xkcd", 64);
  textFont(myFont);
  textAlign(CENTER);
  io = 0;
  counter=0;
}

void draw(){
  background(0);
  text(counter, height/2, width/2);

  text("Test2 "+test2[0], 50, 50);             /// NullPointerException
  println(test2[1]);                                   

  counter++;
}   

void keyPressed() {
  if (key == '1') {
    openData();
  }
}

void openData() {
  println("open data...");
  // stop the draw() function
  noLoop();
  selectInput("Select a file...", "myFile");

  println("...function end.");
}

void Textsichern (String[] _val) {               /// My modifying.
  test2 = _val;  
  text("Test2 "+test2[0], 50, 50);
  println(test2[1]);
}

void myFile(File selection) {
  io=1;
  if (selection == null) {
    println("No file selected.");
  } else  {
    println("File selected: " + selection.getAbsolutePath());
    counter=0;
    Textsichern(loadStrings(selection.getAbsolutePath()));   /// My modifying.
  }
  // restart the draw() function
  loop();
  io=0;
}

...and modifying them. Error at line 22

Gruß Willi

The "vanilla" code (from the analyzeSound.pde example) below works with an AudioPlayer object but when I try to combine it with the tickRate example, it says "the function 'bufferSize()' does not exist" and "the global variable 'mix' does not exist".

I don't understand Minim enough to know how to remedy this.

Is it possible to do it this way?

Thanks.

Vanilla:

import ddf.minim.*;
import ddf.minim.analysis.*;

Minim minim;
AudioPlayer player;
FFT fft;

float spectrumAvg;

void setup() {
  fullScreen();
  //size(512, 200);
  minim = new Minim(this);
  selectInput("Select an audio file:", "fileSelected");
}

void fileSelected(File selection) {
  String audioFileName = selection.getAbsolutePath();
  player = minim.loadFile(audioFileName);
  fft = new FFT(player.bufferSize(), player.sampleRate());
  player.play();
}

void draw()
{
  background(0);
  stroke(255);

  if (player != null) {
    if (fft != null) {
      fft.forward(player.mix);

      for (int i = 0; i < fft.specSize(); i++) {
        float lineStrength = height - fft.getBand(i)*height/2;
        spectrumAvg += lineStrength;
        line(i, height, i, lineStrength);
      }
      spectrumAvg = spectrumAvg / fft.specSize();
      println(spectrumAvg);
    }
  }
}

Combined with tickRate:

import ddf.minim.*;
import ddf.minim.analysis.*;
import ddf.minim.spi.*; // for AudioRecordingStream
import ddf.minim.ugens.*;


Minim minim;
FilePlayer player;
FFT fft;

float spectrumAvg;

void setup() {
  fullScreen();
  //size(512, 200);
  minim = new Minim(this);
  selectInput("Select an audio file:", "fileSelected");
}

void fileSelected(File selection) {
  String audioFileName = selection.getAbsolutePath();
  player = new FilePlayer(minim.loadFileStream(audioFileName));
  fft = new FFT(player.bufferSize(), player.sampleRate()); //error
  player.play();
}

void draw()
{
  background(0);
  stroke(255);

  if (player != null) {
    if (fft != null) {
      fft.forward(player.mix); //error

      for (int i = 0; i < fft.specSize(); i++) {
        float lineStrength = height - fft.getBand(i)*height/2;
        spectrumAvg += lineStrength;
        line(i, height, i, lineStrength);
      }
      spectrumAvg = spectrumAvg / fft.specSize();
      println(spectrumAvg);
    }
  }
}

In my small program, the user selects an image file and then the file can be seen in full screen, I have made some mistakes in my code:

 import  java.io.File;
 import processing.opengl.*;
 PImage img;

 int mX, mY;



void setup() {
       size(640, 200);
       background(0);
       selectInput("Select a file to process:", "fileSelected");
}

void draw() {
      stroke(255);
      if(mousePressed) {
      line(mouseX, mouseY, pmouseX, pmouseY);
}
}

void fileSelected(File selection) {
      image(img, 0, 0);
      img = loadImage(selection.getAbsolutePath());
}

but it does not work, where I'm wrong? Another question: how can I directly open the browser in the folder where is the code?

thanks!

import ddf.minim.*;
import ddf.minim.analysis.*;
import ddf.minim.effects.*;
import ddf.minim.signals.*;
import ddf.minim.spi.*;
import ddf.minim.ugens.*;

Minim minim;
AudioPlayer Player;
int farbe;
PImage playPause;
PImage hintergrund;
void setup() {
  selectInput("Suche einen Song aus","selected");
  size(500,400);
  background(0);
  minim = new Minim(this);
  Player = minim.loadFile(path); // Spielt die Mp3 datei ab
  Player.loop(); // Wiederholt den aktuellen Song
  farbe = 0;
  smooth();
  playPause = loadImage("play3.jpg");
  hintergrund = loadImage("hintergrund2.jpg");
}

void selected(File song){
  path = song.getAbsolutePath();
  }

void interrupt(){
  while(path == null){
      noLoop();
    }
    loop();
  }

void draw()  {
  background(0);
  image(hintergrund,0,0);
  image(playPause,25,25);
  translate(width/2, height/2);
  rotate(radians(frameCount % 360 * 2));
  colorMode(HSB);
  stroke(farbe, 255, 255);
  colorMode(RGB);

  for(int j = 0; j < 360; j++){

    if(Player.mix.get(j)*200 > 50) {
      colorMode(HSB);
      stroke(farbe, 255,255);
      colorMode(RGB);
    }
    else {
      colorMode(HSB);
      stroke(farbe,255,255);
      colorMode(RGB);
    }
    line(cos(j)*100, sin(j)*100, cos(j)*abs(Player.left.get(j))*250 + cos(j)*100, sin(j)*abs(Player.right.get(j))*250 + sin(j)*100);
  }

    //for(int i = 0; i < fft.avgSize(); i++){
    //line((i * w)*3, height/1.1, (i * w)*3, height/1.1 - fft.getAvg(i) * 0.5);

  farbe += 2;
  if( farbe > 255)
  {
    farbe = 0;
  }
// #########MOUSE############
    if (mousePressed && (mouseButton == LEFT)) {
    Player.pause();
  } else if (mousePressed && (mouseButton == RIGHT)) {
    Player.play();
  }

  }

but he says The variable "path" does not exist what should i do to fix this?

When i use this code I can select a MP3 file but the Visualizer didn´t show the line and only play the Sound

  import ddf.minim.*;
  import ddf.minim.analysis.*;
  import ddf.minim.effects.*;
  import ddf.minim.signals.*;
  import ddf.minim.spi.*;
  import ddf.minim.ugens.*;
  String path;

  Minim minim;
  AudioPlayer Player;
  int farbe;
  PImage playPause;
  PImage hintergrund;

  void setup() {
    size(500,400);
    background(0);
    minim = new Minim(this);
    //Player = minim.loadFile(path); // Spielt die Mp3 datei ab
    //Player.loop(); // Wiederholt den aktuellen Song
    farbe = 0;
    smooth();
    playPause = loadImage("play3.jpg");
    hintergrund = loadImage("hintergrund2.jpg");
  }

  void selected(File song){
    path = song.getAbsolutePath();
    }

  void interrupt(){
    while (path == null){
      loop();
    }
     noLoop();
    }

  void draw()  {
    selectInput("Suche einen Song aus","selected");
    interrupt();
    background(0);
    Player = minim.loadFile(path); // Spielt die Mp3 datei ab
    Player.play();
    image(hintergrund,0,0);
    image(playPause,25,25);
    translate(width/2, height/2);
    rotate(radians(frameCount % 360 * 2));
    colorMode(HSB);
    stroke(farbe, 255, 255);
    colorMode(RGB);

    for(int j = 0; j < 360; j++){

      if(Player.mix.get(j)*200 > 50) {
        colorMode(HSB);
        stroke(farbe, 255,255);
        colorMode(RGB);
      }
      else {
        colorMode(HSB);
        stroke(farbe,255,255);
        colorMode(RGB);
      }
      line(cos(j)*100, sin(j)*100, cos(j)*abs(Player.left.get(j))*250 + cos(j)*100, sin(j)*abs(Player.right.get(j))*250 + sin(j)*100);
    }

      //for(int i = 0; i < fft.avgSize(); i++){
      //line((i * w)*3, height/1.1, (i * w)*3, height/1.1 - fft.getAvg(i) * 0.5);

    farbe += 2;
    if( farbe > 255)
    {
      farbe = 0;
    }
  // #########MOUSE############
      if (mousePressed && (mouseButton == LEFT)) {
      Player.pause();
    } else if (mousePressed && (mouseButton == RIGHT)) {
      Player.play();
    }

    }

But when i use this code Visualizer show me lines and effects why? here the visualizer got a MP3 in the loadFile but i need a way to choose the mp3 file

      import ddf.minim.*;
      import ddf.minim.analysis.*;
      import ddf.minim.effects.*;
      import ddf.minim.signals.*;
      import ddf.minim.spi.*;
      import ddf.minim.ugens.*;
      String path;

      Minim minim;
      AudioPlayer Player;
      int farbe;
      PImage playPause;
      PImage hintergrund;

      void setup() {
        size(500,400);
        background(0);
        minim = new Minim(this);
        Player = minim.loadFile("bla.mp3"); // Spielt die Mp3 datei ab
        Player.loop(); // Wiederholt den aktuellen Song
        farbe = 0;
        smooth();
        playPause = loadImage("play3.jpg");
        hintergrund = loadImage("hintergrund2.jpg");
      }

     /* void selected(File song){
        path = song.getAbsolutePath();
        }

      void interrupt(){
        while (path == null){
          loop();
        }
         noLoop();
        } */

      void draw()  {
        //selectInput("Suche einen Song aus","selected");
        //interrupt();
        background(0);
       // Player = minim.loadFile(path); // Spielt die Mp3 datei ab
      //  Player.play();
        image(hintergrund,0,0);
        image(playPause,25,25);
        translate(width/2, height/2);
        rotate(radians(frameCount % 360 * 2));
        colorMode(HSB);
        stroke(farbe, 255, 255);
        colorMode(RGB);

        for(int j = 0; j < 360; j++){

          if(Player.mix.get(j)*200 > 50) {
            colorMode(HSB);
            stroke(farbe, 255,255);
            colorMode(RGB);
          }
          else {
            colorMode(HSB);
            stroke(farbe,255,255);
            colorMode(RGB);
          }
          line(cos(j)*100, sin(j)*100, cos(j)*abs(Player.left.get(j))*250 + cos(j)*100, sin(j)*abs(Player.right.get(j))*250 + sin(j)*100);
        }

          //for(int i = 0; i < fft.avgSize(); i++){
          //line((i * w)*3, height/1.1, (i * w)*3, height/1.1 - fft.getAvg(i) * 0.5);

        farbe += 2;
        if( farbe > 255)
        {
          farbe = 0;
        }
      // #########MOUSE############
          if (mousePressed && (mouseButton == LEFT)) {
          Player.pause();
        } else if (mousePressed && (mouseButton == RIGHT)) {
          Player.play();
        } 
        }

Please help me guys i need the filepath way for my university plx plx plx :(

A small snippet of the 1D array:

205/55R16,24,5.5-7.5,6.5,8.4,7.6,24.9,837

205/45R17,23,6.5-7.5,7,8.1,7.4,24.3,859

205/50R17,25,5.5-7.5,6.5,8.4,7.5,25.1,830

215/45R17,24,7-8,7,8.4,7.7,24.7,845

The first entry in every row is a string, and the following 7 are values I want to use later as numbers. So how would I go about storing the first entry into a single column 1D array, and the last 7 entries into another 2D array?

To make it more complicated the third entry needs to be split into two different entries, making the 2D array an [m][8] array, m being the number of rows from the read file. The reason I won't be doing this by hand is I will in the end have a couple thousand lines to split, which is not an efficient process.

Thank you for the help!

I use selectInput() to find the file what I want to use. Works fine, but the file browser window is always on back. (Full screen mode as well.) Is there any trick to keep on the top?

Thank you in advance.

void setup() {
  selectInput("Select a file to process:", "fileSelected");
}

void fileSelected(File selection) {
  if (selection == null) {
    println("Window was closed or the user hit cancel.");
  } else {
    println("User selected " + selection.getAbsolutePath());
  }
}

I tripped over this with my own code, so I thought I would test the example sketch and it does the same thing. I'm still relatively new to P3, so I thought I'd check on the forum before I file a bug report on GitHub.

Andy

void fileSelected(File selection) { if (selection == null) { println("Window was closed or the user hit cancel."); } else { println("User selected " + selection.getName()); } }

void setup() { selectInput("Select a file to process:", "fileSelected"); }

PImage loadedImgage;
String selectedPath = "";

void fileSelected(File selection) {
  selectedPath = selection.getAbsolutePath();
  loadedImgage = loadImage(selectedPath);
}

String getFileName(String completeFileName) {
  String[] fileNameParts = split(completeFileName, ".");
  fileNameParts = shorten(fileNameParts);
  return join(fileNameParts, ".");
}

void keyPressed() {
  if(key == 's') {
    save(getFileName(selectedPath) + "__.jpg");
    exit();
  }
}

void settings() {
  selectInput("Select a file to process:", "fileSelected");
  while (loadedImgage == null)  delay(100);
  size(loadedImgage.width, loadedImgage.height); 
}

void draw() {
  background(loadedImgage);

  for(int i = 0; i < loadedImgage.width; i++) {
    color imageColor = get(i, 0);

    noStroke();
    fill(imageColor);
    rect(i, 0, 1, 9);
  }

  noLoop();
}

Here are the visuals :

So as you can see first column of the modified file should have the same color as the first pixel of the original file (255;242;6), but strangely it doesn't, it's even a totally new color (255;225;75) which doesn't exist in any of the existing pixels !

So do any of you know how is this possible? Thanx a lot for your help

I hope, you can help me with a little problem: I want to draw something on the screen as well as drawing this into a PDF file. The PDF file is written correctly, but there is no output on the screen.

Do you have an idea, why it does not work?

Thanks a lot!

Cheers, Sebastian

import processing.pdf.*;

void setup() {
  size(400, 400);
  noLoop();
}

void draw() {
  selectInput("Select a listener file:", "fileSelected");
}


void fileSelected(File selection) {
  if (selection == null) {
    println("Window was closed or the user hit cancel.");
  } else {
    println("User selected " + selection.getAbsolutePath());
    drawGraphic(selection.getAbsolutePath());
  }
}


void drawGraphic(String inputString) {

  // DRAWING
  beginRecord(PDF, "filename.pdf");

  background(127);
  text(inputString, 10, 10);

  endRecord();
}