先看效果图
1、echarts的版本使用的是:
<script src="https://cdn.bootcdn.net/ajax/libs/echarts/5.4.1/echarts.min.js"></script>
<script src="https://cdn.bootcdn.net/ajax/libs/echarts-gl/2.0.8/echarts-gl.js"></script>
2、饼图可自旋转,鼠标移上也可转动,不想让旋转grid3D:{viewControl:{autoRotate:false}}
3、 3D饼图主义echarts的版本,注意以下几个方法即可形成一个伪3D
//饼图-1 function getEchartsBt() { //echarts-bt是布局中的div var chartDom = document.getElementById('echarts-bt'); var myChart = echarts.init(chartDom); // 生成扇形的曲面参数方程,用于 series-surface.parametricEquation function getParametricEquation(startRatio, endRatio, isSelected, isHovered, k, h) { // 计算 let midRatio = (startRatio + endRatio) / 2; let startRadian = startRatio * Math.PI * 2; let endRadian = endRatio * Math.PI * 2; let midRadian = midRatio * Math.PI * 2; // 如果只有一个扇形,则不实现选中效果。 // if (startRatio === 0 && endRatio === 1) { // isSelected = false; // } isSelected = false; // 通过扇形内径/外径的值,换算出辅助参数 k(默认值 1/3) k = typeof k !== 'undefined' ? k : 1 / 3; // 计算选中效果分别在 x 轴、y 轴方向上的位移(未选中,则位移均为 0) let offsetX = isSelected ? Math.sin(midRadian) * 0.1 : 0; let offsetY = isSelected ? Math.cos(midRadian) * 0.1 : 0; // 计算高亮效果的放大比例(未高亮,则比例为 1) let hoverRate = isHovered ? 1.05 : 1; // 返回曲面参数方程 return { u: { min: -Math.PI, max: Math.PI * 3, step: Math.PI / 32, }, v: { min: 0, max: Math.PI * 2, step: Math.PI / 20, }, x: function (u, v) { if (u < startRadian) { return offsetX + Math.cos(startRadian) * (1 + Math.cos(v) * k) * hoverRate; } if (u > endRadian) { return offsetX + Math.cos(endRadian) * (1 + Math.cos(v) * k) * hoverRate; } return offsetX + Math.cos(u) * (1 + Math.cos(v) * k) * hoverRate; }, y: function (u, v) { if (u < startRadian) { return offsetY + Math.sin(startRadian) * (1 + Math.cos(v) * k) * hoverRate; } if (u > endRadian) { return offsetY + Math.sin(endRadian) * (1 + Math.cos(v) * k) * hoverRate; } return offsetY + Math.sin(u) * (1 + Math.cos(v) * k) * hoverRate; }, z: function (u, v) { if (u < -Math.PI * 0.5) { return Math.sin(u); } if (u > Math.PI * 2.5) { return Math.sin(u) * h * 0.1; } return Math.sin(v) > 0 ? 1 * h * 0.1 : -1; }, }; } // 生成模拟 3D 饼图的配置项 function getPie3D(pieData, internalDiameterRatio) { let series = []; let sumValue = 0; let startValue = 0; let endValue = 0; let legendData = []; let k = typeof internalDiameterRatio !== 'undefined' ? (1 - internalDiameterRatio) / (1 + internalDiameterRatio) : 1 / 3; // 为每一个饼图数据,生成一个 series-surface 配置 for (let i = 0; i < pieData.length; i++) { sumValue += pieData[i].value; let seriesItem = { name: typeof pieData[i].name === 'undefined' ? `series${i}` : pieData[i].name, type: 'surface', parametric: true, wireframe: { show: false, }, pieData: pieData[i], pieStatus: { selected: false, hovered: false, k: 1 / 10, }, }; if (typeof pieData[i].itemStyle != 'undefined') { let itemStyle = {}; typeof pieData[i].itemStyle.color != 'undefined' ? (itemStyle.color = pieData[i].itemStyle.color) : null; typeof pieData[i].itemStyle.opacity != 'undefined' ? (itemStyle.opacity = pieData[i].itemStyle.opacity) : null; seriesItem.itemStyle = itemStyle; } series.push(seriesItem); } // 使用上一次遍历时,计算出的数据和 sumValue,调用 getParametricEquation 函数, // 向每个 series-surface 传入不同的参数方程 series-surface.parametricEquation,也就是实现每一个扇形。 for (let i = 0; i < series.length; i++) { endValue = startValue + series[i].pieData.value; series[i].pieData.startRatio = startValue / sumValue; series[i].pieData.endRatio = endValue / sumValue; series[i].parametricEquation = getParametricEquation( series[i].pieData.startRatio, series[i].pieData.endRatio, false, false, k, series[i].pieData.value ); startValue = endValue; legendData.push(series[i].name); } // // 补充一个透明的圆环,用于支撑高亮功能的近似实现。 series.push({ name: 'mouseoutSeries', type: 'surface', parametric: true, wireframe: { show: false, }, itemStyle: { opacity: 0.1, color: '#E1E8EC', }, parametricEquation: { u: { min: 0, max: Math.PI * 2, step: Math.PI / 20, }, v: { min: 0, max: Math.PI, step: Math.PI / 20, }, x: function (u, v) { return ((Math.sin(v) * Math.sin(u) + Math.sin(u)) / Math.PI) * 2; }, y: function (u, v) { return ((Math.sin(v) * Math.cos(u) + Math.cos(u)) / Math.PI) * 2; }, z: function (u, v) { return Math.cos(v) > 0 ? -0.5 : -5; }, }, }); // // 补充一个透明的圆环,用于支撑高亮功能的近似实现。 series.push({ name: 'mouseoutSeries', type: 'surface', parametric: true, wireframe: { show: false, }, itemStyle: { opacity: 0.1, color: '#E1E8EC', }, parametricEquation: { u: { min: 0, max: Math.PI * 2, step: Math.PI / 20, }, v: { min: 0, max: Math.PI, step: Math.PI / 20, }, x: function (u, v) { return ((Math.sin(v) * Math.sin(u) + Math.sin(u)) / Math.PI) * 2; }, y: function (u, v) { return ((Math.sin(v) * Math.cos(u) + Math.cos(u)) / Math.PI) * 2; }, z: function (u, v) { return Math.cos(v) > 0 ? -5 : -7; }, }, }); series.push({ name: 'mouseoutSeries', type: 'surface', parametric: true, wireframe: { show: false, }, itemStyle: { opacity: 0.1, color: '#E1E8EC', }, parametricEquation: { u: { min: 0, max: Math.PI * 2, step: Math.PI / 20, }, v: { min: 0, max: Math.PI, step: Math.PI / 20, }, x: function (u, v) { return ((Math.sin(v) * Math.sin(u) + Math.sin(u)) / Math.PI) * 2.2; }, y: function (u, v) { return ((Math.sin(v) * Math.cos(u) + Math.cos(u)) / Math.PI) * 2.2; }, z: function (u, v) { return Math.cos(v) > 0 ? -7 : -7; }, }, }); // 准备待返回的配置项,把准备好的 legendData、series 传入。 let option = { backgroundColor:'#333', //animation: false, legend: { left: '50%', top: 'center', itemHeight: 10, itemWidth:16, textStyle: { color: '#fff', fontSize: '14px', fontWeight: 700 }, data: legendData, formatter: (params) => { return params; }, }, xAxis3D: {}, yAxis3D: {}, zAxis3D: {}, grid3D: { viewControl: { alpha:35, autoRotate: true, }, left: 'left', width: '50%', boxWidth:180, boxDepth:180, show: false, boxHeight: 30, }, series: series, }; return option; } let optionData = [{ name: '性能测试', value: 134, itemStyle: { color: '#99D3F3', }, }, { name: '安全功能', value: 156, itemStyle: { color: '#007AFF', }, }, { name: '功能测试', value: 57, itemStyle: { color: '#2563AE', }, }, { name: '易用性测试', value: 51, itemStyle: { color: '#1F9AA7', }, }, { name: '代码安全', value: 11, itemStyle: { color: '#F5B64C', }, }] var option = getPie3D(optionData, 0.8); myChart.setOption(option, true); }
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有什么不懂的可以联系我,希望可以帮助到大家,谢谢!