option = { xAxis: { type: 'category', data: ['Mon', 'Tue', 'Wed', 'Thu', 'Fri', 'Sat', 'Sun'] }, yAxis: { type: 'value' }, visualMap: { type: "piecewise", min: 0, max: 260, inRange: { color: ["#313695", "#4575b4", "#74add1", "#abd9e9", "#e0f3f8", "#ffffbf", "#fee090", "#fdae61", "#f46d43", "#d73027", "#a50026"] }, }, series: [ { data: [150, 230, 224, 218, 135, 147, 260], type: 'line' } ] };