CODEWITHSUNDEEP
javascripttouchoffset
Jacob
Jacob

Reputation: 4031

Touch event offset relative to target element

I am using hammer.js for handling my touch events. I am performing a zoom on a canvas element. With the touch event I can only get the offset of my touch event relative to the page and not to the canvas element. How can I solve this issue?

Upvotes: 1

Views: 1678

Answers (1)

Jacob
Jacob

Reputation: 4031

Got it working this way: 

hammertime_zoomer.on("transform", function(evt) {               
    var c = dojo.position(evt.target);
    var c1 = c.x;
    var c2 = c.y;

    var p1 = evt.gesture.center.pageX;
    var p2 = evt.gesture.center.pageY;

    var x = p1 - c1;
    var y = p2 - c2;

    vp.zoomIt(x, y, evt.gesture.scale);
});

Upvotes: 1

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