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Thread: [4.1] scatter chart: zIndex is not taken in consideration during interaction

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    You found a bug! We've classified it as EXTJS-6668 . We encourage you to continue the discussion and to find an acceptable workaround while we work on a permanent fix.
  1. #1
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    Default [4.1] scatter chart: zIndex is not taken in consideration during interaction

    Code:
    var store = Ext.create('Ext.data.JsonStore', {
        fields: ['name', 'data1', 'data2', 'data3', 'data4', 'data5'],
        data: [
            { 'name': 'metric one',   'data1':5, 'data2':5, 'data3':20, 'data4':8,  'data5':13 },
            { 'name': 'metric two',   'data1':5,  'data2':4.5,  'data3':30, 'data4':10, 'data5':3  },
            { 'name': 'metric three', 'data1':1,  'data2':1,  'data3':2, 'data4':12, 'data5':7  },
            { 'name': 'metric four', 'data1':10,  'data2':10,  'data3':2, 'data4':12, 'data5':7  }
        ]
    });
    
    
    Ext.create('Ext.chart.Chart', {
        renderTo: Ext.getBody(),
        width: 500,
        height: 350,
        animate: true,
        store: store,
        theme: 'Base:gradients',
        series: [{
            type: 'scatter',
            xField: 'data1',
            yField: 'data2',
            highlight: true,
            renderer: function (sprite, record, attr, index, store) {
                    return Ext.apply(attr, {
                        radius: record.get('data3')
                    });
            },
            isItemInPoint: function(x, y, item) {
                        var point,
                            tolerance = item.sprite.attr.radius,
                            abs = Math.abs;
    
                        function dist(point) {
                            var dx = abs(point[0] - x),
                                dy = abs(point[1] - y);
                            return Math.sqrt(dx * dx + dy * dy);
                        }
                        point = item.point;
                        return dist(point)<= tolerance;
            }
        }]
    });
    isItemInPoint overrided to deal with another issue.
    So there are two large bubbles in the center of the chart.
    And when I move mouse cursor above intersection of the bubbles than lower one is highlighted. The same is about listeners. So as for me it is because series.Series.getItemForPoint method looks for first item for given coordinates. And if there are several such items(with different zIndex or even with same zIndex) it will lead to abnormal reaction.

  2. #2
    Sencha - Sr Software Engineer mitchellsimoens's Avatar
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    Thanks for the report.
    Mitchell Simoens @LikelyMitch
    Sencha Inc, Senior Software Engineer
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    Check out my GitHub, lots of nice things for Ext JS and Sencha Touch
    https://github.com/mitchellsimoens

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