{"ast":null,"code":"/*\n* Licensed to the Apache Software Foundation (ASF) under one\n* or more contributor license agreements.  See the NOTICE file\n* distributed with this work for additional information\n* regarding copyright ownership.  The ASF licenses this file\n* to you under the Apache License, Version 2.0 (the\n* \"License\"); you may not use this file except in compliance\n* with the License.  You may obtain a copy of the License at\n*\n*   http://www.apache.org/licenses/LICENSE-2.0\n*\n* Unless required by applicable law or agreed to in writing,\n* software distributed under the License is distributed on an\n* \"AS IS\" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY\n* KIND, either express or implied.  See the License for the\n* specific language governing permissions and limitations\n* under the License.\n*/\n\n/**\n * AUTO-GENERATED FILE. DO NOT MODIFY.\n */\n\n/*\n* Licensed to the Apache Software Foundation (ASF) under one\n* or more contributor license agreements.  See the NOTICE file\n* distributed with this work for additional information\n* regarding copyright ownership.  The ASF licenses this file\n* to you under the Apache License, Version 2.0 (the\n* \"License\"); you may not use this file except in compliance\n* with the License.  You may obtain a copy of the License at\n*\n*   http://www.apache.org/licenses/LICENSE-2.0\n*\n* Unless required by applicable law or agreed to in writing,\n* software distributed under the License is distributed on an\n* \"AS IS\" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY\n* KIND, either express or implied.  See the License for the\n* specific language governing permissions and limitations\n* under the License.\n*/\nimport { __extends } from \"tslib\";\nimport Polyline from './Polyline.js';\nimport EffectLine from './EffectLine.js';\nimport * as vec2 from 'zrender/lib/core/vector.js';\n\nvar EffectPolyline =\n/** @class */\nfunction (_super) {\n  __extends(EffectPolyline, _super);\n\n  function EffectPolyline() {\n    var _this = _super !== null && _super.apply(this, arguments) || this;\n\n    _this._lastFrame = 0;\n    _this._lastFramePercent = 0;\n    return _this;\n  } // Override\n\n\n  EffectPolyline.prototype.createLine = function (lineData, idx, seriesScope) {\n    return new Polyline(lineData, idx, seriesScope);\n  };\n\n  ; // Override\n\n  EffectPolyline.prototype._updateAnimationPoints = function (symbol, points) {\n    this._points = points;\n    var accLenArr = [0];\n    var len = 0;\n\n    for (var i = 1; i < points.length; i++) {\n      var p1 = points[i - 1];\n      var p2 = points[i];\n      len += vec2.dist(p1, p2);\n      accLenArr.push(len);\n    }\n\n    if (len === 0) {\n      this._length = 0;\n      return;\n    }\n\n    for (var i = 0; i < accLenArr.length; i++) {\n      accLenArr[i] /= len;\n    }\n\n    this._offsets = accLenArr;\n    this._length = len;\n  };\n\n  ; // Override\n\n  EffectPolyline.prototype._getLineLength = function () {\n    return this._length;\n  };\n\n  ; // Override\n\n  EffectPolyline.prototype._updateSymbolPosition = function (symbol) {\n    var t = symbol.__t < 1 ? symbol.__t : 2 - symbol.__t;\n    var points = this._points;\n    var offsets = this._offsets;\n    var len = points.length;\n\n    if (!offsets) {\n      // Has length 0\n      return;\n    }\n\n    var lastFrame = this._lastFrame;\n    var frame;\n\n    if (t < this._lastFramePercent) {\n      // Start from the next frame\n      // PENDING start from lastFrame ?\n      var start = Math.min(lastFrame + 1, len - 1);\n\n      for (frame = start; frame >= 0; frame--) {\n        if (offsets[frame] <= t) {\n          break;\n        }\n      } // PENDING really need to do this ?\n\n\n      frame = Math.min(frame, len - 2);\n    } else {\n      for (frame = lastFrame; frame < len; frame++) {\n        if (offsets[frame] > t) {\n          break;\n        }\n      }\n\n      frame = Math.min(frame - 1, len - 2);\n    }\n\n    var p = (t - offsets[frame]) / (offsets[frame + 1] - offsets[frame]);\n    var p0 = points[frame];\n    var p1 = points[frame + 1];\n    symbol.x = p0[0] * (1 - p) + p * p1[0];\n    symbol.y = p0[1] * (1 - p) + p * p1[1];\n    var tx = symbol.__t < 1 ? 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See the NOTICE file\n* distributed with this work for additional information\n* regarding copyright ownership.  The ASF licenses this file\n* to you under the Apache License, Version 2.0 (the\n* \"License\"); you may not use this file except in compliance\n* with the License.  You may obtain a copy of the License at\n*\n*   http://www.apache.org/licenses/LICENSE-2.0\n*\n* Unless required by applicable law or agreed to in writing,\n* software distributed under the License is distributed on an\n* \"AS IS\" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY\n* KIND, either express or implied.  See the License for the\n* specific language governing permissions and limitations\n* under the License.\n*/\n\n\n/**\n * AUTO-GENERATED FILE. DO NOT MODIFY.\n */\n\n/*\n* Licensed to the Apache Software Foundation (ASF) under one\n* or more contributor license agreements.  See the NOTICE file\n* distributed with this work for additional information\n* regarding copyright ownership.  The ASF licenses this file\n* to you under the Apache License, Version 2.0 (the\n* \"License\"); you may not use this file except in compliance\n* with the License.  You may obtain a copy of the License at\n*\n*   http://www.apache.org/licenses/LICENSE-2.0\n*\n* Unless required by applicable law or agreed to in writing,\n* software distributed under the License is distributed on an\n* \"AS IS\" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY\n* KIND, either express or implied.  See the License for the\n* specific language governing permissions and limitations\n* under the License.\n*/\nimport { __extends } from \"tslib\";\nimport Polyline from './Polyline.js';\nimport EffectLine from './EffectLine.js';\nimport * as vec2 from 'zrender/lib/core/vector.js';\n\nvar EffectPolyline =\n/** @class */\nfunction (_super) {\n  __extends(EffectPolyline, _super);\n\n  function EffectPolyline() {\n    var _this = _super !== null && _super.apply(this, arguments) || this;\n\n    _this._lastFrame = 0;\n    _this._lastFramePercent = 0;\n    return _this;\n  } // Override\n\n\n  EffectPolyline.prototype.createLine = function (lineData, idx, seriesScope) {\n    return new Polyline(lineData, idx, seriesScope);\n  };\n\n  ; // Override\n\n  EffectPolyline.prototype._updateAnimationPoints = function (symbol, points) {\n    this._points = points;\n    var accLenArr = [0];\n    var len = 0;\n\n    for (var i = 1; i < points.length; i++) {\n      var p1 = points[i - 1];\n      var p2 = points[i];\n      len += vec2.dist(p1, p2);\n      accLenArr.push(len);\n    }\n\n    if (len === 0) {\n      this._length = 0;\n      return;\n    }\n\n    for (var i = 0; i < accLenArr.length; i++) {\n      accLenArr[i] /= len;\n    }\n\n    this._offsets = accLenArr;\n    this._length = len;\n  };\n\n  ; // Override\n\n  EffectPolyline.prototype._getLineLength = function () {\n    return this._length;\n  };\n\n  ; // Override\n\n  EffectPolyline.prototype._updateSymbolPosition = function (symbol) {\n    var t = symbol.__t < 1 ? symbol.__t : 2 - symbol.__t;\n    var points = this._points;\n    var offsets = this._offsets;\n    var len = points.length;\n\n    if (!offsets) {\n      // Has length 0\n      return;\n    }\n\n    var lastFrame = this._lastFrame;\n    var frame;\n\n    if (t < this._lastFramePercent) {\n      // Start from the next frame\n      // PENDING start from lastFrame ?\n      var start = Math.min(lastFrame + 1, len - 1);\n\n      for (frame = start; frame >= 0; frame--) {\n        if (offsets[frame] <= t) {\n          break;\n        }\n      } // PENDING really need to do this ?\n\n\n      frame = Math.min(frame, len - 2);\n    } else {\n      for (frame = lastFrame; frame < len; frame++) {\n        if (offsets[frame] > t) {\n          break;\n        }\n      }\n\n      frame = Math.min(frame - 1, len - 2);\n    }\n\n    var p = (t - offsets[frame]) / (offsets[frame + 1] - offsets[frame]);\n    var p0 = points[frame];\n    var p1 = points[frame + 1];\n    symbol.x = p0[0] * (1 - p) + p * p1[0];\n    symbol.y = p0[1] * (1 - p) + p * p1[1];\n    var tx = symbol.__t < 1 ? p1[0] - p0[0] : p0[0] - p1[0];\n    var ty = symbol.__t < 1 ? p1[1] - p0[1] : p0[1] - p1[1];\n    symbol.rotation = -Math.atan2(ty, tx) - Math.PI / 2;\n    this._lastFrame = frame;\n    this._lastFramePercent = t;\n    symbol.ignore = false;\n  };\n\n  ;\n  return EffectPolyline;\n}(EffectLine);\n\nexport default EffectPolyline;"]},"metadata":{},"sourceType":"module"}