heres a way, limited and simple.
create an array of ints for x and y positions. allocate memory for them and use the method mousePressed() to get mouse pressed event. it saves only once.

if you would do it inside the mainloop (draw) i believe it would keep saving the mouse point until u released the mouse button. give it a try and you will see for yourself.

// limited size to 100 clicks
int[] xpos;
int[] ypos;
int clickCount;

void setup()
{
 size(200, 200);

 xpos = new int[ 100 ];
 ypos = new int[ 100 ];
 clickCount = 0;
}

void draw()
{
 // empty
}

void mousePressed()
{
 // if reached limits, just save no more
 if( clickCount >= 100 )
   return;

 xpos[clickCount] = mouseX;
 ypos[clickCount] = mouseY;
 clickCount++;
}

is it possible to set the limit higher then 100 or without a limit.

100 positions are too little

thanks.

i want to save the mouse positions to create ellipses.
tehn i use the ellipses for a mask.

is the same possible with your answer?

Code:

int[] xpos;
int[] ypos;
int clickCount;

import JMyron.*;
PGraphics pg;

PGraphics back;
PImage img;
JMyron m;//a camera object
 
void setup(){
  size(320,240);
  m = new JMyron();//make a new instance of the object
  m.start(width,height);//start a capture at 320x240
  loadPixels();
  
  xpos = new int[ 100 ];
  ypos = new int[ 100 ];
  clickCount = 0;
}

void draw(){
  m.update();//update the camera view
  m.imageCopy(pixels);//draw image to stage
  updatePixels();
  
  //*******************************
  // Es wird ein Kreis mit dem Radius 60 x 60px erstellt
  // Um den Kreis befindet sich eine Fläche von 320 x 240px mit der Farbe weiß
  //*******************************
  pg = createGraphics(320, 320, P3D);
  pg.beginDraw();
  pg.background(255);
  pg.fill(0);
  pg.noStroke();
  pg.ellipse(mouseX, mouseY, 60, 60);
  //*******************************
  // Wenn die Maus gedrück wird, werden weitere Ellipsen erstellt.
  // Momenan liegt das Limit bei 100, da ansonsten das Array zu voll wird
  //*******************************
  if (mousePressed == true) { 
	if( clickCount >= 100 )
	return;
	xpos[clickCount] = mouseX;
	ypos[clickCount] = mouseY;
	clickCount++;
  }

  for (int i = 0; i < 100; i++) {
	pg.ellipse(xpos[i], ypos[i], 60, 60);
  } 
  
  pg.endDraw();
  
  //*******************************
  // Es wird ein Quadrat mit der Fläche 320 x 240px erstellt
  // Das Quadrat hat standartmäßig die farbe weiß
  // mit mask() wird eine Maske erstellt
  // daraus folgt, dass die bereiche mit unterschiedlichen farben vom quadrat und vom kreis transparent werden
  //*******************************
  back = createGraphics(320, 320, P3D);
  back.rect(0, 0, 320, 240);
  back.mask(pg); 
  image(back,0,0);
}

public void stop(){m.stop(); super.stop();}//stop the camera object 

 

sw01 wrote on Jan 17^th, 2009, 9:38pm:

thanks

instead of a mouse i use the wii controler via glovepie an osc.
now i search for an alterntive of "void mousePressed".

Code:

 if (b==1) {
 vectors.add( new PVector(wii1x, wii1y));
} 

doesn´t works

//OSC
import oscP5.*;
import netP5.*;
int wii1x, wii1y, b;
OscP5 oscP5;
NetAddress myRemoteLocation;

void setup()  
{
 size(200, 200);

 vectors = new ArrayList();
   //OSC
 oscP5 = new OscP5(this,3000);
 myRemoteLocation = new NetAddress("127.0.0.1",3000);
}
void oscEvent(OscMessage theOscMessage) {

wii1x = int(map(theOscMessage.get(0).intValue(),0,1000,width,0));
wii1y = int(map(theOscMessage.get(1).intValue(),0,800,0,height));
b = theOscMessage.get(2).intValue();

}

void draw()  
{
background(0);
 for (int i = 0; i < vectors.size(); i++) {
   PVector v= (PVector)vectors.get(i);
   ellipse(v.x,v.y,10,10);  
 }  
 println("");


}

void mousePressed(){
 vectors.add( new PVector(wii1x, wii1y));
} [/code]