javascript - To move 3d chart Highcharts via mobile? -


i'm working @ charts: http://www.highcharts.com/demo/3d-scatter-draggable

but have noticed mobile (phone or tablet) impossible move (with thouch) charts.

i have used this:

tooltip: {              followtouchmove: true }

maybe impossible phones or iphone (safari) doesn't support option?

the problem normalization, need modify lines, refers pagex/pagey positions.

$(chart.container).bind('mousedown.hc touchstart.hc', function (e) {     e = chart.pointer.normalize(e);      var originalevent = e.originalevent || e,         posx = originalevent.changedtouches ? originalevent.changedtouches[0].pagex : e.pagex,         posy = originalevent.changedtouches ? originalevent.changedtouches[0].pagey : e.pagey,         alpha = chart.options.chart.options3d.alpha,         beta = chart.options.chart.options3d.beta,         newalpha,         newbeta,         sensitivity = 5; // lower more sensitive      $(document).bind({         'mousemove.hc touchmove.hc': function (e) {             // run beta             var originalevent = e.originalevent || e,                 pagex = originalevent.changedtouches ? originalevent.changedtouches[0].pagex : e.pagex,                 pagey = originalevent.changedtouches ? originalevent.changedtouches[0].pagey : e.pagey;               newbeta = beta + (posx - pagex) / sensitivity;             newbeta = math.min(100, math.max(-100, newbeta));             chart.options.chart.options3d.beta = newbeta;              // run alpha             newalpha = alpha + (pagey - posy) / sensitivity;             newalpha = math.min(100, math.max(-100, newalpha));             chart.options.chart.options3d.alpha = newalpha;              chart.redraw(false);         },             'mouseup touchend': function () {             $(document).unbind('.hc');         }     }); });

example: http://jsfiddle.net/l8o0pt6j/7/


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