逐步完成前后端服务器

frontend/node_modules/echarts/lib/chart/lines/linesLayout.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.
+*/
+/* global Float32Array */
+import createRenderPlanner from '../helper/createRenderPlanner.js';
+import { error } from '../../util/log.js';
+var linesLayout = {
+  seriesType: 'lines',
+  plan: createRenderPlanner(),
+  reset: function (seriesModel) {
+    var coordSys = seriesModel.coordinateSystem;
+    if (!coordSys) {
+      if (process.env.NODE_ENV !== 'production') {
+        error('The lines series must have a coordinate system.');
+      }
+      return;
+    }
+    var isPolyline = seriesModel.get('polyline');
+    var isLarge = seriesModel.pipelineContext.large;
+    return {
+      progress: function (params, lineData) {
+        var lineCoords = [];
+        if (isLarge) {
+          var points = void 0;
+          var segCount = params.end - params.start;
+          if (isPolyline) {
+            var totalCoordsCount = 0;
+            for (var i = params.start; i < params.end; i++) {
+              totalCoordsCount += seriesModel.getLineCoordsCount(i);
+            }
+            points = new Float32Array(segCount + totalCoordsCount * 2);
+          } else {
+            points = new Float32Array(segCount * 4);
+          }
+          var offset = 0;
+          var pt = [];
+          for (var i = params.start; i < params.end; i++) {
+            var len = seriesModel.getLineCoords(i, lineCoords);
+            if (isPolyline) {
+              points[offset++] = len;
+            }
+            for (var k = 0; k < len; k++) {
+              pt = coordSys.dataToPoint(lineCoords[k], false, pt);
+              points[offset++] = pt[0];
+              points[offset++] = pt[1];
+            }
+          }
+          lineData.setLayout('linesPoints', points);
+        } else {
+          for (var i = params.start; i < params.end; i++) {
+            var itemModel = lineData.getItemModel(i);
+            var len = seriesModel.getLineCoords(i, lineCoords);
+            var pts = [];
+            if (isPolyline) {
+              for (var j = 0; j < len; j++) {
+                pts.push(coordSys.dataToPoint(lineCoords[j]));
+              }
+            } else {
+              pts[0] = coordSys.dataToPoint(lineCoords[0]);
+              pts[1] = coordSys.dataToPoint(lineCoords[1]);
+              var curveness = itemModel.get(['lineStyle', 'curveness']);
+              if (+curveness) {
+                pts[2] = [(pts[0][0] + pts[1][0]) / 2 - (pts[0][1] - pts[1][1]) * curveness, (pts[0][1] + pts[1][1]) / 2 - (pts[1][0] - pts[0][0]) * curveness];
+              }
+            }
+            lineData.setItemLayout(i, pts);
+          }
+        }
+      }
+    };
+  }
+};
+export default linesLayout;