githubmirror/echarts

test/heatmap-gap-bug.html
185 строк53 KB
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fix(heatmap): add 0.5px to avoid the gaps in Cartesian 2D coordinate system when dpr is not an integer.
22 янв 2022, 21:39
22 янв 2022, 21:39a5ad5de

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<html>
    <head>
        <meta charset="utf-8">
        <script src="lib/simpleRequire.js"></script>
        <script src="lib/config.js"></script>
        <meta name="viewport" content="width=device-width, initial-scale=1" />
    </head>
    <body>
        <style>
            html, body, #main {
                width: 100%;
                height: 100%;
                margin: 0;
            }
            html, body {
            height: 100%;
            background: #fffcf8;
            overflow: hidden;
        }
        #myChart {
            width: 800px;
            height: 300px;
        }
        #myLineChart {
            width: 800px;
            height: 150px;
            margin: 0 auto;
        }
        .chart-wrapper {
            width: 802px;
            height: 400px;
            overflow-x: hidden;
            overflow-y: auto;
            margin: 0 auto;
        }
        .chart-content {
            width: 820px;
            height: 580px;
            margin: 30px auto;
            padding: 30px;
            border: 1px solid #e6e6e6;
            box-shadow: 0 0 5px 0px rgb(185, 185, 185);
            border-radius: 2px;
            background: #fff;
        }
        .info-panel {
            text-align: center;
            color: #4c4c4c;
        }
        /*定义滚动条高宽及背景 高宽分别对应横竖滚动条的尺寸*/
        ::-webkit-scrollbar
        {
            width: 8px;
            height: 8px;
            background-color: #F5F5F5;
        }

        /*定义滚动条轨道 内阴影+圆角*/
        ::-webkit-scrollbar-track
        {
            -webkit-box-shadow: inset 0 0 2px rgba(0,0,0,0.3);
            border-radius: 4px;
            background-color: #F5F5F5;
        }

        /*定义滑块 内阴影+圆角*/
        ::-webkit-scrollbar-thumb
        {
            border-radius: 4px;
            -webkit-box-shadow: inset 0 0 2px rgba(0,0,0,.3);
            background-color: rgb(187, 187, 187);
        }
        </style>
        <div class="chart-content">
            <div class="chart-wrapper">
                <div id="myChart" style="height: 260px;"></div>
            </div>
        </div>
        <script>
            // gap usually appears when dpr is not an integer
            Object.defineProperty(window, 'devicePixelRatio', {
                value: 2.5,
                writable: false
            });
            require([
                'echarts'
            ], function (echarts) {

                var chart = echarts.init(document.getElementById('myChart'));

                const yAxis = {
                    "type": "category",
                    "data": [
                        0,
                        1,
                        2,
                        3,
                        4,
                        5,
                        6,
                        7,
                        8,
                        9,
                        10,
                        11,
                        12,
                        13,
                        14,
                        15,
                        16,
                        17,
                        18
                    ]
                };

                const data2 = [[0,0,0.5],[1,0,0.548841875],[2,0,0.59144],[3,0,0.623388125],[4,0,0.64208],[5,0,0.646484375],[6,0,0.6369199999999999],[7,0,0.614830625],[8,0,0.58256],[9,0,0.543126875],[1 … [Строка слишком длинная. Вы можете скачать файл]

                let d = [];

                for (let i = 0; i < data2.length; i++) {
                    if (data2[i][0] < 2) {
                        d.push(data2[i]);
                    }
                }

                chart.setOption({
                    grid: {
                        left: 30,
                        top: 10,
                        right: 10
                    },
                    tooltip: {},
                    xAxis: {
                        type: 'category',
                        show: false
                    },
                    yAxis: yAxis,
                    visualMap: {
                        min: 0,
                        max: 1,
                        show: false,
                        calculable: true,
                        realtime: false,
                        inRange: {
                            color: ['#0000ba', '#29ffdf', '#f9fd0c', '#ff9400']
                            // color: ['#313695', '#4575b4', '#74add1', '#abd9e9', '#e0f3f8', '#ffffbf', '#fee090', '#fdae61', '#f46d43', '#d73027', '#a50026']
                        }
                    },
                    series: [{
                        name: '图表1',
                        type: 'heatmap',
                        itemStyle: {
                            emphasis: {
                                borderColor: '#333',
                                borderWidth: 1
                            }
                        },
                        progressive: false,
                        animation: false,
                        data: d
                    }]
                });
            });
        </script>
    </body>
</html>