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Viewing file:     linesLayout.js (3.78 KB)      -rw-r--r--

/*
* 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.
*/

var createRenderPlanner = require("../helper/createRenderPlanner");

/*
* 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 */
var _default = {
  seriesType: 'lines',
  plan: createRenderPlanner(),
  reset: function (seriesModel) {
    var coordSys = seriesModel.coordinateSystem;
    var isPolyline = seriesModel.get('polyline');
    var isLarge = seriesModel.pipelineContext.large;

    function progress(params, lineData) {
      var lineCoords = [];

      if (isLarge) {
        var points;
        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);
        }
      }
    }

    return {
      progress: progress
    };
  }
};
module.exports = _default;