| /* |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you under the Apache License, Version 2.0 (the |
| * "License"); you may not use this file except in compliance |
| * with the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, |
| * software distributed under the License is distributed on an |
| * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY |
| * KIND, either express or implied. See the License for the |
| * specific language governing permissions and limitations |
| * under the License. |
| */ |
| |
| import {isDimensionStacked} from '../../data/helper/dataStackHelper'; |
| import {isNumber, map} from 'zrender/src/core/util'; |
| import type Polar from '../../coord/polar/Polar'; |
| import type Cartesian2D from '../../coord/cartesian/Cartesian2D'; |
| import SeriesData from '../../data/SeriesData'; |
| import Axis from '../../coord/Axis'; |
| import type { LineSeriesOption } from './LineSeries'; |
| |
| interface CoordInfo { |
| dataDimsForPoint: string[] |
| valueStart: number |
| valueAxisDim: string |
| baseAxisDim: string |
| stacked: boolean |
| valueDim: string |
| baseDim: string |
| baseDataOffset: number |
| stackedOverDimension: string |
| } |
| |
| export function prepareDataCoordInfo( |
| coordSys: Cartesian2D | Polar, |
| data: SeriesData, |
| valueOrigin?: LineSeriesOption['areaStyle']['origin'] |
| ): CoordInfo { |
| const baseAxis = coordSys.getBaseAxis(); |
| const valueAxis = coordSys.getOtherAxis(baseAxis as any); |
| const valueStart = getValueStart(valueAxis, valueOrigin); |
| |
| const baseAxisDim = baseAxis.dim; |
| const valueAxisDim = valueAxis.dim; |
| const valueDim = data.mapDimension(valueAxisDim); |
| const baseDim = data.mapDimension(baseAxisDim); |
| const baseDataOffset = valueAxisDim === 'x' || valueAxisDim === 'radius' ? 1 : 0; |
| |
| const dims = map(coordSys.dimensions, function (coordDim) { |
| return data.mapDimension(coordDim); |
| }); |
| |
| let stacked = false; |
| const stackResultDim = data.getCalculationInfo('stackResultDimension'); |
| if (isDimensionStacked(data, dims[0] /*, dims[1]*/)) { // jshint ignore:line |
| stacked = true; |
| dims[0] = stackResultDim; |
| } |
| if (isDimensionStacked(data, dims[1] /*, dims[0]*/)) { // jshint ignore:line |
| stacked = true; |
| dims[1] = stackResultDim; |
| } |
| |
| return { |
| dataDimsForPoint: dims, |
| valueStart: valueStart, |
| valueAxisDim: valueAxisDim, |
| baseAxisDim: baseAxisDim, |
| stacked: !!stacked, |
| valueDim: valueDim, |
| baseDim: baseDim, |
| baseDataOffset: baseDataOffset, |
| stackedOverDimension: data.getCalculationInfo('stackedOverDimension') |
| }; |
| } |
| |
| function getValueStart(valueAxis: Axis, valueOrigin: LineSeriesOption['areaStyle']['origin']) { |
| let valueStart = 0; |
| const extent = valueAxis.scale.getExtent(); |
| |
| if (valueOrigin === 'start') { |
| valueStart = extent[0]; |
| } |
| else if (valueOrigin === 'end') { |
| valueStart = extent[1]; |
| } |
| // If origin is specified as a number, use it as |
| // valueStart directly |
| else if (isNumber(valueOrigin) && !isNaN(valueOrigin)) { |
| valueStart = valueOrigin; |
| } |
| // auto |
| else { |
| // Both positive |
| if (extent[0] > 0) { |
| valueStart = extent[0]; |
| } |
| // Both negative |
| else if (extent[1] < 0) { |
| valueStart = extent[1]; |
| } |
| // If is one positive, and one negative, onZero shall be true |
| } |
| |
| return valueStart; |
| } |
| |
| export function getStackedOnPoint( |
| dataCoordInfo: CoordInfo, |
| coordSys: Cartesian2D | Polar, |
| data: SeriesData, |
| idx: number |
| ) { |
| let value = NaN; |
| if (dataCoordInfo.stacked) { |
| value = data.get(data.getCalculationInfo('stackedOverDimension'), idx) as number; |
| } |
| if (isNaN(value)) { |
| value = dataCoordInfo.valueStart; |
| } |
| |
| const baseDataOffset = dataCoordInfo.baseDataOffset; |
| const stackedData = []; |
| stackedData[baseDataOffset] = data.get(dataCoordInfo.baseDim, idx); |
| stackedData[1 - baseDataOffset] = value; |
| |
| return coordSys.dataToPoint(stackedData); |
| } |