我怎麼能把圖像或圖標，谷歌線圖

Question

我想折線圖的邊緣看起來像下面

或只是圖像序列圖是可能的？

這樣

是有實現這一目標的任何可能的方式是什麼？

Answer 1

使用getChartLayoutInterfacemethod

var layout = chart.getChartLayoutInterface(); 

找到該點的（X，Y）位置

var xPos = layout.getXLocation(data.getValue(row, xColumn)); 
var yPos = layout.getYLocation(data.getValue(row, yColumn)); 

然後手動添加圖像和相應地調整

google.charts.load('current', {packages: ['corechart', 'line']}); 
 
google.charts.setOnLoadCallback(drawBackgroundColor); 
 

 
function drawBackgroundColor() { 
 
    var data = new google.visualization.DataTable(); 
 
    data.addColumn('number', 'X'); 
 
    data.addColumn('number', 'Y'); 
 

 
    data.addRows([ 
 
    [0, 0], [1, 10], [2, 23], [3, 17], [4, 18], [5, 9], 
 
    [6, 11], [7, 27], [8, 33], [9, 40], [10, 32], [11, 35], 
 
    [12, 30], [13, 40], [14, 42], [15, 47], [16, 44], [17, 48], 
 
    [18, 52], [19, 54], [20, 42], [21, 55], [22, 56], [23, 57], 
 
    [24, 60], [25, 50], [26, 52], [27, 51], [28, 49], [29, 53], 
 
    [30, 55], [31, 60], [32, 61], [33, 59], [34, 62], [35, 65], 
 
    [36, 62], [37, 58], [38, 55], [39, 61], [40, 64], [41, 65], 
 
    [42, 63], [43, 66], [44, 67], [45, 69], [46, 69], [47, 70], 
 
    [48, 72], [49, 68], [50, 66], [51, 65], [52, 67], [53, 70], 
 
    [54, 71], [55, 72], [56, 73], [57, 75], [58, 70], [59, 68], 
 
    [60, 64], [61, 60], [62, 65], [63, 67], [64, 68], [65, 69], 
 
    [66, 70], [67, 72], [68, 75], [69, 80] 
 
    ]); 
 

 
    var options = { 
 
    colors: ['#000000'], 
 
    legend: 'none', 
 
    lineSize: 2 
 
    }; 
 

 
    var container = document.getElementById('chart_div'); 
 
    var chart = new google.visualization.LineChart(container); 
 

 
    google.visualization.events.addListener(chart, 'ready', function() { 
 
    var layout = chart.getChartLayoutInterface(); 
 
    for (var i = 0; i < data.getNumberOfRows(); i++) { 
 
     // add image above every fifth element 
 
     if ((i % 5) === 0) { 
 
     var xPos = layout.getXLocation(data.getValue(i, 0)); 
 
     var yPos = layout.getYLocation(data.getValue(i, 1)); 
 

 
     var whiteHat = container.appendChild(document.createElement('img')); 
 
     whiteHat.src = 'http://findicons.com/files/icons/512/star_wars/16/clone_old.png'; 
 
     whiteHat.className = 'whiteHat'; 
 

 
     // 16x16 (image size in this example) 
 
     whiteHat.style.top = (yPos - 16) + 'px'; 
 
     whiteHat.style.left = (xPos) + 'px'; 
 
     } 
 
    } 
 
    }); 
 

 
    chart.draw(data, options); 
 
}

.whiteHat { 
 
    border: none; 
 
    position: absolute; 
 
}

<script src="https://www.gstatic.com/charts/loader.js"></script> 
 
<div id="chart_div"></div>