3D echarts饼图

时间:2025-04-07 08:16:01
drawLine3(id) { this.charts3 = this.$echarts.init(document.getElementById(id)) // eslint-disable-next-line no-unused-vars this.personChartListData = [{ name: 'itema项目A', value: 666 }, { name: 'itemb项目B', value: 1570 }] const colorList = ['#00d8ff', '#018ef1', '#f8bc87', '#ffa130', '#c23531'] const pieData = [] for (let i = 0; i < this.personChartListData.length; i++) { const item = { name: this.personChartListData[i].name, value: this.personChartListData[i].value, itemStyle: { color: colorList[i] } } pieData.push(item) } var option = this.getPie3D(pieData, 0.59) this.charts3.setOption(option) }, getPie3D(pieData, internalDiameterRatio) { debugger const series = [] let sumValue = 0 let startValue = 0 let endValue = 0 const legendData = [] const k = typeof internalDiameterRatio !== 'undefined' ? (1 - internalDiameterRatio) / (1 + internalDiameterRatio) : 1 / 3 // 为每一个饼图数据,生成一个 series-surface 配置 for (let i = 0; i < pieData.length; i++) { sumValue += pieData[i].value const seriesItem = { name: typeof pieData[i].name === 'undefined' ? `series${i}` : pieData[i].name, type: 'surface', parametric: true, wireframe: { show: false }, pieData: pieData[i], pieStatus: { selected: false, hovered: false, k: k } } if (typeof pieData[i].itemStyle !== 'undefined') { const 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 console.log(itemStyle) /* itemStyle: { normal: { label: { show: true, position: 'top' } } }*/ } 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 ,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 = this.getParametricEquation( series[i].pieData.startRatio, series[i].pieData.endRatio, true, false, 1 ) 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: 1, color: 'rgba(18,236,252,.5)' }, parametricEquation: { u: { min: 0, max: Math.PI * 2, step: Math.PI / 20 }, v: { min: 0, max: Math.PI, step: Math.PI / 1.4 }, x: function(u, v) { return Math.sin(v) * Math.sin(u) + Math.sin(u) }, y: function(u, v) { return Math.sin(v) * Math.cos(u) + Math.cos(u) }, z: function(u, v) { return Math.cos(v) > 0 ? 0.1 : -0.1 } } }) // 准备待返回的配置项,把准备好的 legendData、series 传入。 const option = { // animation: false, legend: { show: true, data: legendData }, tooltip: { formatter: params => { if (params.seriesName !== 'mouseoutSeries') { return `${params.seriesName}<br/><span style="display:inline-block;margin-right:5px;border-radius:10px;width:10px;height:10px;background-color:${};"></span>${option.series[params.seriesIndex].pieData.value}` } } }, xAxis3D: { min: -1.3, max: 1.3 }, yAxis3D: { min: -1.3, max: 1.3 }, zAxis3D: { min: -1.3, max: 1.3 }, grid3D: { show: false, boxHeight: 10, // top: '30%', left: '0', bottom: '50%', viewControl: { // 3d效果可以放大、旋转等,请自己去查看官方配置 alpha: 20, // beta: 40, rotateSensitivity: 0, zoomSensitivity: 0, panSensitivity: 0, autoRotate: true // autoRotateSpeed: 5, // autoRotateAfterStill: 10 } }, series: series } return option }, getParametricEquation(startRatio, endRatio, isSelected, isHovered, k) { // 计算 const midRatio = (startRatio + endRatio) / 2 const startRadian = startRatio * Math.PI * 2 const endRadian = endRatio * Math.PI * 2 const 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 } // 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) const offsetX = isSelected ? Math.cos(midRadian) * 0.1 : 0 const offsetY = isSelected ? Math.sin(midRadian) * 0.1 : 0 // 计算高亮效果的放大比例(未高亮,则比例为 1) const 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) } return Math.sin(v) > 0 ? 1 : -1 } } }