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frontend/node_modules/echarts/lib/chart/line/helper.js

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+
+/*
+* 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.
+*/
+
+
+/**
+ * AUTO-GENERATED FILE. DO NOT MODIFY.
+ */
+
+/*
+* 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.js';
+import { isNumber, map } from 'zrender/lib/core/util.js';
+export function prepareDataCoordInfo(coordSys, data, valueOrigin) {
+  var baseAxis = coordSys.getBaseAxis();
+  var valueAxis = coordSys.getOtherAxis(baseAxis);
+  var valueStart = getValueStart(valueAxis, valueOrigin);
+  var baseAxisDim = baseAxis.dim;
+  var valueAxisDim = valueAxis.dim;
+  var valueDim = data.mapDimension(valueAxisDim);
+  var baseDim = data.mapDimension(baseAxisDim);
+  var baseDataOffset = valueAxisDim === 'x' || valueAxisDim === 'radius' ? 1 : 0;
+  var dims = map(coordSys.dimensions, function (coordDim) {
+    return data.mapDimension(coordDim);
+  });
+  var stacked = false;
+  var 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, valueOrigin) {
+  var valueStart = 0;
+  var 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, coordSys, data, idx) {
+  var value = NaN;
+  if (dataCoordInfo.stacked) {
+    value = data.get(data.getCalculationInfo('stackedOverDimension'), idx);
+  }
+  if (isNaN(value)) {
+    value = dataCoordInfo.valueStart;
+  }
+  var baseDataOffset = dataCoordInfo.baseDataOffset;
+  var stackedData = [];
+  stackedData[baseDataOffset] = data.get(dataCoordInfo.baseDim, idx);
+  stackedData[1 - baseDataOffset] = value;
+  return coordSys.dataToPoint(stackedData);
+}