How to implement Rotation and Drag&Drop in Kinetic.js?
Question
I need a code to do the follow things: I've an image definited to Kinetic.Image, and this image should rotate; I have to use the drag and drop on this image, but the rotation doesn't allow the drag and drop. Can you give me a code to do this? I searched some tutorials but they don't help me. Thank you
1 answers
solution1
1 ACCPTED 2013-07-27 18:49:18
KineticJS images are both draggable and rotatable already.
For the "drop", you can listen for the drop event on the image like this:
kImage.on('dragend', function() {
// do your drop tests here
});
Here is code and a Fiddle: http://jsfiddle.net/m1erickson/eCekf/
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>Prototype</title>
<script type="text/javascript" src="http://code.jquery.com/jquery.min.js"></script>
<script src="http://d3lp1msu2r81bx.cloudfront.net/kjs/js/lib/kinetic-v4.5.4.min.js"></script>
<style>
#container{
border:solid 1px #ccc;
margin-top: 10px;
width:400px;
height:400px;
}
</style>
<script>
$(function(){
var stage = new Kinetic.Stage({
container: 'container',
width: 400,
height: 400
});
var layer = new Kinetic.Layer();
stage.add(layer);
var kImage;
var img=new Image();
img.onload=function(){
kImage=new Kinetic.Image({
image:img,
x:175,
y:175,
width:150,
height:150,
offset:[75,75],
draggable:true
});
layer.add(kImage);
kImage.rotate(30*Math.PI/180);
layer.draw();
}
img.src="https://dl.dropboxusercontent.com/u/139992952/stackoverflow/house-icon.png";
$("#rotate").click(function(){
kImage.rotate(kImage.getRotation()+20*Math.PI/180);
layer.draw();
});
}); // end $(function(){});
</script>
</head>
<body>
<div id="container"></div>
<button id="rotate">Rotate</button>
</body>
</html>
The technical post webpages of this site follow the CC BY-SA 4.0 protocol. If you need to reprint, please indicate the site URL or the original address.Any question please contact:yoyou2525@163.com.