DIR : /home/kozerus/public_html/go/konva15.html

/home/kozerus/public_html/go

Konva Zoom Image on Hover Demo view raw

<!DOCTYPE html>
<html>
<head>
<!--	<script src="https://unpkg.com/konva@8.3.0/konva.min.js"></script> -->
	<script src="/go/js/konva.min.js"></script>
	<meta charset="utf-8" />
	<title>Konva Zoom Image on Hover Demo</title>
	<style>
		body {
			margin: 0;
			padding: 0;
			overflow: hidden;
			background-color: #f0f0f0;
			}
		</style>
  </head>
  <body>
    <div id="container"></div>
    <script>
      var width = window.innerWidth;
      var height = window.innerHeight;

      var stage = new Konva.Stage({
        container: 'container',
        width: width,
        height: height,
      });

	var layer = new Konva.Layer();

	stage.add(layer);

	var imageObj = new Image();
	imageObj.onload = function () {
		var backgroundImage = new Konva.Image({
			x: 0,
			y: 0,
			width: width,
			height: height,
			image: imageObj,
			});
	        layer.add(backgroundImage);
		};

//		imageObj.src = '/assets/space.jpg';
		imageObj.src = '/imgs/btn/koeye.png';

		var zoomLevel = 2;
		layer.on('mouseenter', function () {
			layer.scale({
				x: zoomLevel,
				y: zoomLevel,
				});
			});

		layer.on('mousemove', function (e) {
			var pos = stage.getPointerPosition();
			layer.x(-pos.x);
			layer.y(-pos.y);
			});

		layer.on('mouseleave', function () {
			layer.x(0);
			layer.y(0);
			layer.scale({
				x: 1,
				y: 1,
				});
			});
		</script>
	</body>
	</html>

koh5_pano

Drag mouse to navigate.

Navigation

Left/Right Mouse drag: Changes camera heading.
Up/Sown Mouse drag: Changes camera pitch.
Scroll wheel: Changes camera field of view.
I-Key: Displays Info panel with canvas size, image size and FPS.

17.Aug.2010, Martin Wengenmayer