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{ isNumber } from '@antv/util';\nimport { brushInteraction } from '../../adaptor/brush';\nimport { animation, annotation, interaction, scale, scrollbar, slider, theme } from '../../adaptor/common';\nimport { point } from '../../adaptor/geometries';\nimport { Params } from '../../core/adaptor';\nimport { deepAssign, findGeometry, flow, pick, transformLabel } from '../../utils';\nimport { ScatterOptions } from './types';\nimport { getMeta, getPath, getQuadrantDefaultConfig } from './util';\n\n/**\n * 散点图默认美观\n * ① data.length === 1 ② 所有数据 y 值相等 ③ 所有数据 x 值相等\n * @param params\n * @returns params\n */\nexport function transformOptions(options: ScatterOptions): ScatterOptions {\n const { data = [], xField, yField } = options;\n\n if (data.length) {\n // x y 字段知否只有一个值，如果只有一个值，则进行优化\n let isOneX = true;\n let isOneY = true;\n\n let prev = data[0];\n let curr;\n\n for (let i = 1; i < data.length; i++) {\n curr = data[i];\n\n if (prev[xField] !== curr[xField]) {\n isOneX = false;\n }\n\n if 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colorField,\n point: {\n color,\n shape,\n size,\n style: pointStyle,\n },\n tooltip,\n },\n })\n );\n\n const geometry = findGeometry(chart, 'point');\n\n // 数据调整\n if (type) {\n geometry.adjust(type);\n }\n\n return params;\n}\n\n/**\n * meta 配置\n * @param params\n */\nexport function meta(params: Params): Params {\n const { options } = params;\n const { xAxis, yAxis, xField, yField } = options;\n\n const newOptions = transformOptions(options);\n return flow(\n scale({\n [xField]: xAxis,\n [yField]: yAxis,\n })\n )(deepAssign({}, params, { options: newOptions }));\n}\n\n/**\n * axis 配置\n * @param params\n */\nfunction axis(params: Params): Params {\n const { chart, options } = params;\n const { xAxis, yAxis, xField, yField } = options;\n\n chart.axis(xField, xAxis);\n chart.axis(yField, yAxis);\n\n return params;\n}\n\n/**\n * legend 配置\n * @param params\n */\nfunction legend(params: Params): Params {\n const { chart, options } = params;\n const { legend, colorField, shapeField, sizeField, shapeLegend, sizeLegend } = options;\n\n /** legend 不为 false, 则展示图例, 优先展示 color 分类图例 */\n const showLegend = legend !== false;\n\n if (colorField) {\n chart.legend(colorField, showLegend ? legend : false);\n }\n\n // 优先取 shapeLegend, 否则取 legend\n if (shapeField) {\n if (shapeLegend) {\n chart.legend(shapeField, shapeLegend);\n } else {\n chart.legend(shapeField, shapeLegend === false ? false : legend);\n }\n }\n\n if (sizeField) {\n chart.legend(sizeField, sizeLegend ? sizeLegend : false);\n }\n\n /** 默认不展示 shape 图例，当 shapeLegend 为 undefined 也不展示图例 */\n /** 默认没有 sizeField，则隐藏连续图例 */\n if (!showLegend && !shapeLegend && !sizeLegend) {\n chart.legend(false);\n }\n\n return params;\n}\n\n/**\n * 数据标签\n * @param params\n */\nfunction label(params: Params): Params {\n const { chart, options } = params;\n const { label, yField } = options;\n\n const scatterGeometry = findGeometry(chart, 'point');\n\n // label 为 false, 空 则不显示 label\n if (!label) {\n scatterGeometry.label(false);\n } else {\n const { callback, ...cfg } = label;\n scatterGeometry.label({\n fields: [yField],\n callback,\n cfg: transformLabel(cfg),\n });\n }\n\n return params;\n}\n\n/**\n * annotation 配置\n * - 特殊 annotation: quadrant(四象限)\n * @param params\n */\nfunction scatterAnnotation(params: Params): Params {\n const { options } = params;\n const { quadrant } = options;\n\n const annotationOptions = [];\n\n if (quadrant) {\n const { xBaseline = 0, yBaseline = 0, labels, regionStyle, lineStyle } = quadrant;\n const defaultConfig = getQuadrantDefaultConfig(xBaseline, yBaseline);\n // 仅支持四象限\n const quadrants = new Array(4).join(',').split(',');\n quadrants.forEach((_: string, index: number) => {\n annotationOptions.push(\n {\n type: 'region',\n top: false,\n ...defaultConfig.regionStyle[index].position,\n style: deepAssign({}, defaultConfig.regionStyle[index].style, regionStyle?.[index]),\n },\n {\n type: 'text',\n top: true,\n ...deepAssign({}, defaultConfig.labelStyle[index], labels?.[index]),\n }\n );\n });\n // 生成坐标轴\n annotationOptions.push(\n {\n type: 'line',\n top: false,\n start: ['min', yBaseline],\n end: ['max', yBaseline],\n style: deepAssign({}, defaultConfig.lineStyle, lineStyle),\n },\n {\n type: 'line',\n top: false,\n start: [xBaseline, 'min'],\n end: [xBaseline, 'max'],\n style: deepAssign({}, defaultConfig.lineStyle, lineStyle),\n }\n );\n }\n\n return flow(annotation(annotationOptions))(params);\n}\n\n// 趋势线\nfunction regressionLine(params: Params): Params {\n const { options, chart } = params;\n const { regressionLine } = options;\n if (regressionLine) {\n const { style, equationStyle = {}, top = false, showEquation = false } = regressionLine;\n const defaultStyle = {\n stroke: '#9ba29a',\n lineWidth: 2,\n opacity: 0.5,\n };\n const defaulEquationStyle = {\n x: 20,\n y: 20,\n textAlign: 'left' as const,\n textBaseline: 'middle' as const,\n fontSize: 14,\n fillOpacity: 0.5,\n };\n chart.annotation().shape({\n top,\n render: (container, view) => {\n const group = container.addGroup({\n id: `${chart.id}-regression-line`,\n name: 'regression-line-group',\n });\n const [path, equation] = getPath({\n view,\n options,\n });\n group.addShape('path', {\n name: 'regression-line',\n attrs: {\n path,\n ...defaultStyle,\n ...style,\n },\n });\n if (showEquation) {\n group.addShape('text', {\n name: 'regression-equation',\n attrs: {\n ...defaulEquationStyle,\n ...equationStyle,\n text: equation,\n },\n });\n }\n },\n });\n }\n\n return params;\n}\n\n/**\n * tooltip 配置\n * @param params\n */\nexport function tooltip(params: Params): Params {\n const { chart, options } = params;\n const { tooltip } = options;\n\n if (tooltip) {\n chart.tooltip(tooltip);\n } else if (tooltip === false) {\n chart.tooltip(false);\n }\n\n return params;\n}\n\n/**\n * 散点图适配器\n * @param chart\n * @param options\n */\nexport function adaptor(params: Params) {\n // flow 的方式处理所有的配置到 G2 API\n return flow(\n geometry,\n meta,\n axis,\n legend,\n tooltip,\n label,\n // 需要在 interaction 前面\n brushInteraction,\n slider,\n scrollbar,\n interaction,\n scatterAnnotation,\n animation,\n theme,\n regressionLine\n )(params);\n}\n"]}