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at February 10, 2012 19:06 by cgiles
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//////////////////////////////////////////////////////////
//Code By cgiles
//Description : how to add mouse wheel interactivy
//////////////////////////////////////////////////////////
// default size of my ellipse
int tailleEllipse=100;
void setup(){
size(640,480);
frameRate(30);
// this will add a new event listener to your sketch
// for listen how the mouse scroll is used
addMouseWheelListener(new java.awt.event.MouseWheelListener() {
public void mouseWheelMoved(java.awt.event.MouseWheelEvent evt) {
mouseWheel(evt.getWheelRotation());
}});
}
void draw(){
background(255);
ellipse(width/2,height/2,tailleEllipse,tailleEllipse);
}
// this is the event listener of mouse wheel
void mouseWheel(int delta) {
// add the value of wheel's scolling to my ellipse's size
// for a better effiency i multiply the scrolling value by 5
tailleEllipse+=delta*5;
}
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This is the way for listen the mouse wheel and interact from it in processing, enjoy
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how to listen the mouse wheel in processing
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Processing