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node_modules/echarts/lib/chart/lines/linesLayout.js 4.11 KB
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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;