mutable lastMouseX = 0
mutable lastMouseY = 0
mutable angle1 = 0.0
mutable angle2 = 0.0
mutable listenerIsSet = false
{
if (listenerIsSet)
return;
canvas.addEventListener('mousemove', onMouseMove, false);
mutable listenerIsSet = true;
}
onMouseMove = (event) => {
let mouseX = event.clientX;
let mouseY = event.clientY;
let diffX = mouseX - lastMouseX;
let diffY = mouseY - lastMouseY;
mutable angle1 = angle1 + diffX/2.5;
mutable angle2 = angle2 + diffY/2.5;
mutable lastMouseX = mouseX;
mutable lastMouseY = mouseY;
}
Purpose-built for displays of data
Observable is your go-to platform for exploring data and creating expressive data visualizations. Use reactive JavaScript notebooks for prototyping and a collaborative canvas for visual data exploration and dashboard creation.
