逐步完成前后端服务器

frontend/node_modules/echarts/lib/layout/points.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 { map } from 'zrender/lib/core/util.js';
+import createRenderPlanner from '../chart/helper/createRenderPlanner.js';
+import { isDimensionStacked } from '../data/helper/dataStackHelper.js';
+import { createFloat32Array } from '../util/vendor.js';
+export default function pointsLayout(seriesType, forceStoreInTypedArray) {
+  return {
+    seriesType: seriesType,
+    plan: createRenderPlanner(),
+    reset: function (seriesModel) {
+      var data = seriesModel.getData();
+      var coordSys = seriesModel.coordinateSystem;
+      var pipelineContext = seriesModel.pipelineContext;
+      var useTypedArray = forceStoreInTypedArray || pipelineContext.large;
+      if (!coordSys) {
+        return;
+      }
+      var dims = map(coordSys.dimensions, function (dim) {
+        return data.mapDimension(dim);
+      }).slice(0, 2);
+      var dimLen = dims.length;
+      var stackResultDim = data.getCalculationInfo('stackResultDimension');
+      if (isDimensionStacked(data, dims[0])) {
+        dims[0] = stackResultDim;
+      }
+      if (isDimensionStacked(data, dims[1])) {
+        dims[1] = stackResultDim;
+      }
+      var store = data.getStore();
+      var dimIdx0 = data.getDimensionIndex(dims[0]);
+      var dimIdx1 = data.getDimensionIndex(dims[1]);
+      return dimLen && {
+        progress: function (params, data) {
+          var segCount = params.end - params.start;
+          var points = useTypedArray && createFloat32Array(segCount * dimLen);
+          var tmpIn = [];
+          var tmpOut = [];
+          for (var i = params.start, offset = 0; i < params.end; i++) {
+            var point = void 0;
+            if (dimLen === 1) {
+              var x = store.get(dimIdx0, i);
+              // NOTE: Make sure the second parameter is null to use default strategy.
+              point = coordSys.dataToPoint(x, null, tmpOut);
+            } else {
+              tmpIn[0] = store.get(dimIdx0, i);
+              tmpIn[1] = store.get(dimIdx1, i);
+              // Let coordinate system to handle the NaN data.
+              point = coordSys.dataToPoint(tmpIn, null, tmpOut);
+            }
+            if (useTypedArray) {
+              points[offset++] = point[0];
+              points[offset++] = point[1];
+            } else {
+              data.setItemLayout(i, point.slice());
+            }
+          }
+          useTypedArray && data.setLayout('points', points);
+        }
+      };
+    }
+  };
+}
+;