wulamao commented on issue #10284: scatter3D使用category（文本）作为一个数轴，数据视图显示的数据为数字而非文本 URL: https://github.com/apache/incubator-echarts/issues/10284#issuecomment-483607487 感谢您的回复，这个问题应该跟Visualmap有关。[将下面代码填入此网址](https://www.echartsjs.com/gallery/editor.html?c=doc-example/scatter-visualMap-categories&edit=1&reset=1)，可以看到当使用category作为数轴时，Visualmap的映射失效了，本应该是红色的点，变成了outRange里定义的白色的点。初接触js和echarts，描述不清楚的地方，请谅解。 ```js var dataBJ = [ [1,55,9,56,0.46,18,6,"良"], [2,25,11,21,0.65,34,9,"优"], [9,267,216,280,'-',108,64,"重度污染"], [10,185,127,216,2.52,61,27,"中度污染"], ]; var itemStyle = { normal: { opacity: 0.8, shadowBlur: 10, shadowOffsetX: 0, shadowOffsetY: 0, shadowColor: 'rgba(0, 0, 0, 0.5)' } }; option = { color: [ '#dd4444', '#fec42c', '#80F1BE' ], legend: { y: 'top', data: ['北京', '上海', '广州'] }, grid: { left: '10%', right: 200, top: '15%', bottom: '10%' }, xAxis: { type: 'value', name: '日期', nameGap: 16, nameTextStyle: { fontSize: 14 }, max: 31, splitLine: { show: false }, axisLabel: { formatter: '{value}' }, }, yAxis: { type: 'category', name: '空气质量', nameLocation: 'end', nameGap: 20, nameTextStyle: { fontSize: 20 }, splitLine: { show: false } }, visualMap: [ { left: null, right: 0, dimension: 7, selected: { }, categories: ['严重污染', '重度污染', '中度污染', '轻度污染', '良', '优'], inRange: { symbolSize: 30, symbol: { '优': 'diamond', '': 'circle' } }, outOfRange: { color: '#ffff', symbolSize: { '优': 50, '': 30 }, symbol: { '优': 'diamond', '': 'circle' } } } ], series: [ { name: '北京', type: 'scatter', itemStyle: itemStyle, data: dataBJ, encode: { x: 0, // 表示维度 0 映射到 x 轴。 y: 7, // 表示维度 7 映射到 y 轴。 tooltip: [0, 7] // 表示维度 0,7 会在 tooltip 中显示。 } }, ], toolbox: { feature: { dataView: {}, }, }, }; ```
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