Examples+

# Distance 2D

Move the mouse across the image to obscure and reveal the matrix. Measures the distance from the mouse to each square and sets the size proportionally.

### Highlighted Features

```
/**
* Distance 2D.
*
* Move the mouse across the image to obscure and reveal the matrix.
* Measures the distance from the mouse to each square and sets the
* size proportionally.
*/
float max_distance;
void setup() {
size(640, 360);
noStroke();
max_distance = dist(0, 0, width, height);
}
void draw() {
background(0);
for(int i = 0; i <= width; i += 20) {
for(int j = 0; j <= height; j += 20) {
float size = dist(mouseX, mouseY, i, j);
size = size/max_distance * 66;
ellipse(i, j, size, size);
}
}
}
```

### 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.