Examples+
Patterns
Move the cursor over the image to draw with a software tool which responds to the speed of the mouse.
/**
* Patterns.
*
* Move the cursor over the image to draw with a software tool
* which responds to the speed of the mouse.
*/
void setup() {
size(640, 360);
background(102);
}
void draw() {
// Call the variableEllipse() method and send it the
// parameters for the current mouse position
// and the previous mouse position
variableEllipse(mouseX, mouseY, pmouseX, pmouseY);
}
// The simple method variableEllipse() was created specifically
// for this program. It calculates the speed of the mouse
// and draws a small ellipse if the mouse is moving slowly
// and draws a large ellipse if the mouse is moving quickly
void variableEllipse(int x, int y, int px, int py) {
float speed = abs(x-px) + abs(y-py);
stroke(speed);
ellipse(x, y, speed, speed);
}
Related Examples
This example is for Processing 4+. If you have a previous version, use the examples included with your software. If you see any errors or have suggestions, please let us know.