回答編集履歴
1
canvasのサイズ固定にしておく
test
CHANGED
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@@ -20,19 +20,53 @@
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<script src="https://d3js.org/d3.v4.min.js"></script>
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</head>
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<body>
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<div class="chart-container" style="position: relative; height:400px; width:400px">
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-
<canvas id="myChart"
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<canvas id="myChart"></canvas>
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</div>
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<input type="file" id="input" onchange="handleFiles(this.files)">
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<script type="text/javascript">
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// 先にチャート作成しておく
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var ctx = document.getElementById("myChart");
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var myChart = new Chart(ctx,{
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type:"scatter",
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data: {
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datasets:[{
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label:"実験",
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data: [],
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}]
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},
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options: {
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responsive: true,
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maintainAspectRatio: false
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}
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});
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function handleFiles(files) {
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@@ -56,25 +90,17 @@
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});
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// データを入れ直す
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myChart.data.datasets[0].data = list;
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// グラフ更新
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myChart.update();
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data: list,
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}]
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}
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})
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}
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