多个Google图表无法在同一页面上正确显示

Benoit Duffez 发表于 Dev

贝诺伊特·达菲兹（Benoit Duffez）

我在单个页面上显示了4个图表。当单独绘制时，它们工作得很好，但是当我尝试超过1个时，它们并不会全部显示。我还注意到，在调整窗口大小（从而刷新图表）时，“活动”图表可以更改。

这是我绘制图表的方法：

function drawChart() {
    // Occurrences per step
    var data_occ =  new google.visualization.DataTable();
    data_occ.addColumn('string', 'Step');
    data_occ.addColumn('number', 'Number');
    data_occ.addRows([
        ['NO_STOP_DEP', 2057],
        ['FIND_STOPS_DEP', 795],
        ['FIND_STOPS_ARR', 423],
        ['FIND_ROUTES', 416],
        ['FIND_PATHS_0', 416],
        ['NO_STOP_ARR', 371],
        ['FIND_PATHS_1', 359],
        ['JOURNEY_GET_1CONNECTION_FAILED', 274],
        ['FIND_PATHS_2', 274],
        ['JOURNEY_GET_1CONNECTION_t1d', 185],
        ['OK', 147],
        ['JOURNEY_GET_2CONNECTION_t1d', 145],
        ['JOURNEY_GET_1CONNECTION_t1a', 138],
        ['NO_PATH', 129],
        ['JOURNEY_GET_2CONNECTION_FAILED', 118],
        ['NO_JOURNEY', 118],
        ['JOURNEY_GET_1CONNECTION_cs1', 117],
        ['JOURNEY_GET_1CONNECTION_t2d', 115],
        ['JOURNEY_GET_DIRECT_t1d', 111],
        ['JOURNEY_GET_2CONNECTION_t1a', 79],
        ['JOURNEY_GET_2CONNECTION_cs1', 75],
        ['JOURNEY_GET_2CONNECTION_t2d', 73],
        ['JOURNEY_GET_2CONNECTION_t2a', 66],
        ['JOURNEY_GET_2CONNECTION_cs2', 66],
        ['JOURNEY_GET_2CONNECTION_t3d', 66],
        ['JOURNEY_GET_1CONNECTION', 65],
        ['JOURNEY_GET_DIRECT', 56],
        ['JOURNEY_GET_DIRECT_FAILED', 54],
        ['JOURNEY_GET_2CONNECTION', 26],
        ['NO_ROUTE_ARR', 4],
        ['NO_ROUTE_DEP', 3]
    ]);
    var opt_occ = {
        chart: {
            title: 'Occurrences of each step'
        }
    };
    var chart_occ = new google.charts.Bar(document.getElementById('chart_occ'));
    chart_occ.draw(data_occ, opt_occ);

    // Sum of durations per step
    var data_dur =  new google.visualization.DataTable();
    data_dur.addColumn('string', 'Step');
    data_dur.addColumn('number', 'Duration');
    data_dur.addRows([
        ['JOURNEY_GET_2CONNECTION_t2d', 4271651.423530579],
        ['NO_STOP_DEP', 954578.8992916346],
        ['FIND_STOPS_DEP', 711477.470664978],
        ['JOURNEY_GET_DIRECT_t1d', 604728.3424301147],
        ['JOURNEY_GET_1CONNECTION_t2d', 483084.8451423645],
        ['JOURNEY_GET_1CONNECTION_t1d', 399811.6393585205],
        ['JOURNEY_GET_2CONNECTION_t3d', 391471.8716468811],
        ['FIND_PATHS_1', 173883.78058815002],
        ['FIND_STOPS_ARR', 164751.4531224966],
        ['JOURNEY_GET_2CONNECTION_t1d', 158291.4034690857],
        ['FIND_PATHS_2', 154918.55130004883],
        ['FIND_ROUTES', 125470.71777877212],
        ['NO_STOP_ARR', 82222.14379951358],
        ['JOURNEY_GET_1CONNECTION_cs1', 45374.44926452637],
        ['JOURNEY_GET_1CONNECTION_t1a', 29688.884063720703],
        ['JOURNEY_GET_2CONNECTION_cs2', 21626.706924438477],
        ['JOURNEY_GET_2CONNECTION_cs1', 13983.793979644775],
        ['JOURNEY_GET_2CONNECTION_t2a', 13081.894062042236],
        ['JOURNEY_GET_1CONNECTION', 11718.449104309082],
        ['JOURNEY_GET_2CONNECTION_FAILED', 9777.992935180664],
        ['JOURNEY_GET_1CONNECTION_FAILED', 9182.082992315292],
        ['JOURNEY_GET_DIRECT', 8991.909969329834],
        ['JOURNEY_GET_2CONNECTION_t1a', 8132.20499420166],
        ['NO_ROUTE_ARR', 5709.329235076904],
        ['JOURNEY_GET_DIRECT_FAILED', 5620.268951416016],
        ['FIND_PATHS_0', 4501.938883662224],
        ['JOURNEY_GET_2CONNECTION', 3359.796012878418],
        ['NO_PATH', 1778.0850104540586],
        ['OK', 1419.4850099533796],
        ['NO_JOURNEY', 1267.5709964483976],
        ['NO_ROUTE_DEP', 334.49600982666016]
    ]);
    var opt_dur = {
        chart: {
            title: 'Cumulative duration of each step (ms)'
        }
    };
    var chart_dur = new google.charts.Bar(document.getElementById('chart_dur'));
    chart_dur.draw(data_dur, opt_dur);

    // Average of durations per step
    var data_dur_avg =  new google.visualization.DataTable();
    data_dur_avg.addColumn('string', 'Step');
    data_dur_avg.addColumn('number', 'Duration');
    data_dur_avg.addRows([
        ['NO_ROUTE_DEP', 111.49866994222005],
        ['NO_ROUTE_ARR', 1427.332308769226],
        ['JOURNEY_GET_DIRECT', 160.5698208808899],
        ['NO_PATH', 13.783604732202004],
        ['JOURNEY_GET_1CONNECTION_cs1', 387.8158056797125],
        ['JOURNEY_GET_1CONNECTION_t2d', 4200.737783846648],
        ['JOURNEY_GET_1CONNECTION', 180.2838323739859],
        ['JOURNEY_GET_2CONNECTION_t1a', 102.93930372407165],
        ['JOURNEY_GET_2CONNECTION_cs1', 186.45058639526368],
        ['JOURNEY_GET_2CONNECTION_t2d', 58515.77292507642],
        ['JOURNEY_GET_2CONNECTION_t2a', 198.21051609154904],
        ['JOURNEY_GET_2CONNECTION_cs2', 327.6773776430072],
        ['JOURNEY_GET_2CONNECTION_t3d', 5931.3919946497135],
        ['JOURNEY_GET_2CONNECTION', 129.22292357224686],
        ['OK', 9.656360611927752],
        ['NO_STOP_ARR', 221.623029109201],
        ['JOURNEY_GET_1CONNECTION_t1a', 215.13684104145437],
        ['NO_STOP_DEP', 464.06363601926813],
        ['FIND_STOPS_DEP', 894.9402146729284],
        ['FIND_STOPS_ARR', 389.483340715122],
        ['FIND_ROUTES', 301.6123023528176],
        ['FIND_PATHS_0', 10.821968470341885],
        ['JOURNEY_GET_DIRECT_t1d', 5448.003084955989],
        ['JOURNEY_GET_DIRECT_FAILED', 104.07905465585215],
        ['FIND_PATHS_1', 484.35593478593324],
        ['JOURNEY_GET_1CONNECTION_t1d', 2161.1439965325435],
        ['JOURNEY_GET_1CONNECTION_FAILED', 33.51125179677114],
        ['FIND_PATHS_2', 565.3961726279155],
        ['JOURNEY_GET_2CONNECTION_t1d', 1091.6648515109357],
        ['JOURNEY_GET_2CONNECTION_FAILED', 82.86434690831071],
        ['NO_JOURNEY', 10.742127088545743]
    ]);
    var opt_dur_avg = {
        chart: {
            title: 'Average duration of each step (ms)'
        }
    };
    var chart_dur_avg = new google.charts.Bar(document.getElementById('chart_dur_avg'));
    chart_dur_avg.draw(data_dur_avg, opt_dur_avg);

    // Average duration comparison today vs yesterday
    var data_dur_avg_cmp =  new google.visualization.DataTable();
    data_dur_avg_cmp.addColumn('string', 'Step');
    data_dur_avg_cmp.addColumn('number', 'Yesterday');
    data_dur_avg_cmp.addColumn('number', 'Today');
    data_dur_avg_cmp.addRows([
    ]);
    var opt_dur_avg_cmp = {
        chart: {
            title: 'Average duration of each step (ms)'
        }
    };
    var chart_dur_avg_cmp = new google.charts.Bar(document.getElementById('chart_dur_avg_cmp'));
    chart_dur_avg_cmp.draw(data_dur_avg_cmp, opt_dur_avg_cmp);
}

我还将代码上传到jsfiddle中，以便您自己查看。您可以在顶部播放整数，以选择要显示的图形。具有一个非2的幂的值（即，显示多个图形）将导致以下情况：

div的大小将被确定，我的意思是布局表明存在
不会在div中绘制任何内容

这是一个示例，其中绘制了2个图形，一个图形正确绘制，第二个图形为空白：

我们可以清楚地看到“平均持续时间” div有一个大小，但为空白。

瓦迪姆·格雷米亚切夫（Vadim Gremyachev）

这是在google-visualization-issues存储库中报告的已知问题：

人们在使用物料图的多个实例确定大小时所遇到的问题应通过此新版本解决。您可以更改代码以立即加载“ 1.1”，以便在候选版本可用时使用。

目前至少有两种解决方案。

选项1.使用冻结的版本加载器。

由于v43候选版本的推出将解决此问题，因此切换到使用冻结版本加载程序。

脚步：

1）添加对加载程序的引用： <script src="http://www.gstatic.com/charts/loader.js"></script>

2）然后加载43库的一个版本：google.charts.load("43", { packages: ["corechart", "gauge", "table", "timeline", "bar"] });

3）替换google.setOnLoadCallback(drawChart);为google.charts.setOnLoadCallback(drawChart);

修改后的jsfiddle

选项2。同步渲染图表

由于draw函数是异步的，因此我们利用ready事件处理程序按顺序绘制图表，在这种情况下，应正确呈现多个图表，如下所示。

function drawChart(chartsQueue,index) {
    index = index || 0;
    if (index === chartsQueue.length)
        return;



    var chart = new google.charts.Bar(document.getElementById(chartsQueue[index].id));
    google.visualization.events.addOneTimeListener(chart, 'ready', function() {
        drawChart(chartsQueue, index + 1); //draw next chart
    });
    chart.draw(chartsQueue[index].data, chartsQueue[index].options);
}

修改后的jsfiddle

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