A simple canvas library for animation.
Only support IE9+
What is Animation? Animation is the transition from one state to another. Thus generally any animation could be made up of three factors: the initial state, the final state and the duration.
At anytime during the transition, the intermediate state which is also called a frame could be calculated automatically based on these factors. And Easing functions are often used to process the time-varying params to make the motion more dynamic.
Move a circle straight to the right side
var canvas = document.getElementById('canvas')
var cnm = new Canimation(canvas, window.innerWidth, window.innerHeight);
cnm.createAnimation({
circle: {
from: {
x: 200,
y: 300,
r: 15
},
to: {
x: 500
},
duration: 3000
}
});
Let the circle scale up at the same time
cnm.createAnimation({
circle: {
from: {
x: 200,
y: 300,
r: 15
},
to: {
x: 500,
r: 30
},
duration: 3000
}
});
Move more than one circle to any space
cnm.createAnimation({
circle: {
from: [{
x: 100,
y: 100,
r: 10
}, {
x: 200,
y: 200,
r: 20
}, {
x: 300,
y: 300,
r: 30
}],
to: [{
x: 500,
}, {
y: 500,
}, {
x: 500,
y: 500
}],
duration: 3000
}
});