我如何在高图中更改热图的背景颜色？

Question

我想从图表中删除绿色背景色。我该怎么办？

Highcharts.chart('chart_3', {
chart: {
    type: 'heatmap',
    marginTop: 40,
    marginBottom: 80,
    plotBorderWidth: 1,
    plotBorderColor: '#000000'
},
title: {
    text: ''
},

xAxis: {
    categories: ['Alexander', 'Marie', 'Maximilian', 'Sophia', 'Lukas', 'Maria', 'Leon', 'Anna', 'Tim', 'Laura']
},

yAxis: {
    categories: ['Monday', 'Tuesday', 'Wednesday', 'Thursday', 'Friday'],
    title: null,
    reversed: true
},

colorAxis: {
    min: 0,
    minColor: '#FFFFFF',
    maxColor: '#000000',
    gridLineColor: '#000000',
    lineColor: '#ff5178'
},

legend: {
    align: 'right',
    layout: 'vertical',
    margin: 0,
    verticalAlign: 'top',
    y: 25,
    symbolHeight: 280
},

series: [{
    name: 'Prints per hour',
    borderWidth: 1,
    data: [[0, 0, 10], [0, 1, 19], [0, 2, 8], [0, 3, 24], [0, 4, 67], [1, 0, 92], [1, 1, 58], [1, 2, 78], [1, 3, 117], [1, 4, 48], [2, 0, 35], [2, 1, 15], [2, 2, 123], [2, 3, 64], [2, 4, 52], [3, 0, 72], [3, 1, 132], [3, 2, 114], [3, 3, 19], [3, 4, 16], [4, 0, 38], [4, 1, 5], [4, 2, 8], [4, 3, 117], [4, 4, 115], [5, 0, 88], [5, 1, 32], [5, 2, 12], [5, 3, 6], [5, 4, 0], [6, 0, 13], [6, 1, 44], [6, 2, 88], [6, 3, 98], [6, 4, 96], [7, 0, 31], [7, 1, 1], [7, 2, 82], [7, 3, 32], [7, 4, 30], [8, 0, 85], [8, 1, 97], [8, 2, 123], [8, 3, 64], [8, 4, 84], [9, 0, 47], [9, 1, 114], [9, 2, 31], [9, 3, 48], [9, 4, 91]],
    dataLabels: {
        enabled: true,
        color: '#000000'
    }
}],

}）;

Answer 1

您可以使用chart.backgroundColor选项。 Reference。

工作链接here。