/**
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* Cesium - https://github.com/CesiumGS/cesium
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*
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* Copyright 2011-2020 Cesium Contributors
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*
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* Columbus View (Pat. Pend.)
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*
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* Portions licensed separately.
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* See https://github.com/CesiumGS/cesium/blob/main/LICENSE.md for full licensing details.
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*/
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define(['./arrayRemoveDuplicates-cf5c3227', './Transforms-86b6fa28', './Matrix2-91d5b6af', './RuntimeError-346a3079', './ComponentDatatype-f194c48b', './CoplanarPolygonGeometryLibrary-bddbb12e', './when-4bbc8319', './GeometryAttribute-e0d0d297', './GeometryAttributes-7827a6c2', './GeometryInstance-a3cff41c', './GeometryPipeline-e3097c85', './IndexDatatype-ee69f1fd', './PolygonGeometryLibrary-110b8a9d', './combine-83860057', './WebGLConstants-1c8239cc', './OrientedBoundingBox-79e3c3fe', './EllipsoidTangentPlane-164dcfc9', './AxisAlignedBoundingBox-4171efdd', './IntersectionTests-26599c5e', './Plane-4f333bc4', './AttributeCompression-1f6679e1', './EncodedCartesian3-882fbcbd', './ArcType-98ec98bf', './EllipsoidRhumbLine-447d6334', './PolygonPipeline-d65e2b8f'], (function (arrayRemoveDuplicates, Transforms, Matrix2, RuntimeError, ComponentDatatype, CoplanarPolygonGeometryLibrary, when, GeometryAttribute, GeometryAttributes, GeometryInstance, GeometryPipeline, IndexDatatype, PolygonGeometryLibrary, combine, WebGLConstants, OrientedBoundingBox, EllipsoidTangentPlane, AxisAlignedBoundingBox, IntersectionTests, Plane, AttributeCompression, EncodedCartesian3, ArcType, EllipsoidRhumbLine, PolygonPipeline) { 'use strict';
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function createGeometryFromPositions(positions) {
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var length = positions.length;
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var flatPositions = new Float64Array(length * 3);
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var indices = IndexDatatype.IndexDatatype.createTypedArray(length, length * 2);
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var positionIndex = 0;
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var index = 0;
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for (var i = 0; i < length; i++) {
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var position = positions[i];
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flatPositions[positionIndex++] = position.x;
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flatPositions[positionIndex++] = position.y;
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flatPositions[positionIndex++] = position.z;
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indices[index++] = i;
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indices[index++] = (i + 1) % length;
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}
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var attributes = new GeometryAttributes.GeometryAttributes({
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position: new GeometryAttribute.GeometryAttribute({
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componentDatatype: ComponentDatatype.ComponentDatatype.DOUBLE,
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componentsPerAttribute: 3,
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values: flatPositions,
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}),
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});
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return new GeometryAttribute.Geometry({
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attributes: attributes,
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indices: indices,
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primitiveType: GeometryAttribute.PrimitiveType.LINES,
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});
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}
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/**
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* A description of the outline of a polygon composed of arbitrary coplanar positions.
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*
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* @alias CoplanarPolygonOutlineGeometry
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* @constructor
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*
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* @param {Object} options Object with the following properties:
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* @param {PolygonHierarchy} options.polygonHierarchy A polygon hierarchy that can include holes.
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*
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* @see CoplanarPolygonOutlineGeometry.createGeometry
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*
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* @example
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* var polygonOutline = new Cesium.CoplanarPolygonOutlineGeometry({
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* positions : Cesium.Cartesian3.fromDegreesArrayHeights([
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* -90.0, 30.0, 0.0,
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* -90.0, 30.0, 1000.0,
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* -80.0, 30.0, 1000.0,
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* -80.0, 30.0, 0.0
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* ])
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* });
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* var geometry = Cesium.CoplanarPolygonOutlineGeometry.createGeometry(polygonOutline);
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*/
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function CoplanarPolygonOutlineGeometry(options) {
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options = when.defaultValue(options, when.defaultValue.EMPTY_OBJECT);
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var polygonHierarchy = options.polygonHierarchy;
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//>>includeStart('debug', pragmas.debug);
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RuntimeError.Check.defined("options.polygonHierarchy", polygonHierarchy);
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//>>includeEnd('debug');
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this._polygonHierarchy = polygonHierarchy;
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this._workerName = "createCoplanarPolygonOutlineGeometry";
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/**
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* The number of elements used to pack the object into an array.
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* @type {Number}
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*/
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this.packedLength =
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PolygonGeometryLibrary.PolygonGeometryLibrary.computeHierarchyPackedLength(polygonHierarchy) + 1;
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}
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/**
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* A description of a coplanar polygon outline from an array of positions.
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*
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* @param {Object} options Object with the following properties:
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* @param {Cartesian3[]} options.positions An array of positions that defined the corner points of the polygon.
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* @returns {CoplanarPolygonOutlineGeometry}
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*/
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CoplanarPolygonOutlineGeometry.fromPositions = function (options) {
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options = when.defaultValue(options, when.defaultValue.EMPTY_OBJECT);
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//>>includeStart('debug', pragmas.debug);
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RuntimeError.Check.defined("options.positions", options.positions);
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//>>includeEnd('debug');
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var newOptions = {
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polygonHierarchy: {
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positions: options.positions,
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},
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};
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return new CoplanarPolygonOutlineGeometry(newOptions);
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};
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/**
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* Stores the provided instance into the provided array.
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*
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* @param {CoplanarPolygonOutlineGeometry} value The value to pack.
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* @param {Number[]} array The array to pack into.
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* @param {Number} [startingIndex=0] The index into the array at which to start packing the elements.
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*
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* @returns {Number[]} The array that was packed into
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*/
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CoplanarPolygonOutlineGeometry.pack = function (value, array, startingIndex) {
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//>>includeStart('debug', pragmas.debug);
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RuntimeError.Check.typeOf.object("value", value);
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RuntimeError.Check.defined("array", array);
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//>>includeEnd('debug');
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startingIndex = when.defaultValue(startingIndex, 0);
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startingIndex = PolygonGeometryLibrary.PolygonGeometryLibrary.packPolygonHierarchy(
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value._polygonHierarchy,
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array,
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startingIndex
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);
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array[startingIndex] = value.packedLength;
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return array;
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};
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var scratchOptions = {
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polygonHierarchy: {},
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};
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/**
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* Retrieves an instance from a packed array.
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*
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* @param {Number[]} array The packed array.
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* @param {Number} [startingIndex=0] The starting index of the element to be unpacked.
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* @param {CoplanarPolygonOutlineGeometry} [result] The object into which to store the result.
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* @returns {CoplanarPolygonOutlineGeometry} The modified result parameter or a new CoplanarPolygonOutlineGeometry instance if one was not provided.
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*/
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CoplanarPolygonOutlineGeometry.unpack = function (
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array,
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startingIndex,
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result
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) {
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//>>includeStart('debug', pragmas.debug);
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RuntimeError.Check.defined("array", array);
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//>>includeEnd('debug');
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startingIndex = when.defaultValue(startingIndex, 0);
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var polygonHierarchy = PolygonGeometryLibrary.PolygonGeometryLibrary.unpackPolygonHierarchy(
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array,
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startingIndex
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);
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startingIndex = polygonHierarchy.startingIndex;
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delete polygonHierarchy.startingIndex;
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var packedLength = array[startingIndex];
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if (!when.defined(result)) {
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result = new CoplanarPolygonOutlineGeometry(scratchOptions);
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}
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result._polygonHierarchy = polygonHierarchy;
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result.packedLength = packedLength;
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return result;
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};
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/**
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* Computes the geometric representation of an arbitrary coplanar polygon, including its vertices, indices, and a bounding sphere.
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*
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* @param {CoplanarPolygonOutlineGeometry} polygonGeometry A description of the polygon.
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* @returns {Geometry|undefined} The computed vertices and indices.
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*/
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CoplanarPolygonOutlineGeometry.createGeometry = function (polygonGeometry) {
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var polygonHierarchy = polygonGeometry._polygonHierarchy;
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var outerPositions = polygonHierarchy.positions;
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outerPositions = arrayRemoveDuplicates.arrayRemoveDuplicates(
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outerPositions,
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Matrix2.Cartesian3.equalsEpsilon,
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true
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);
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if (outerPositions.length < 3) {
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return;
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}
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var isValid = CoplanarPolygonGeometryLibrary.CoplanarPolygonGeometryLibrary.validOutline(outerPositions);
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if (!isValid) {
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return undefined;
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}
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var polygons = PolygonGeometryLibrary.PolygonGeometryLibrary.polygonOutlinesFromHierarchy(
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polygonHierarchy,
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false
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);
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if (polygons.length === 0) {
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return undefined;
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}
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var geometries = [];
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for (var i = 0; i < polygons.length; i++) {
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var geometryInstance = new GeometryInstance.GeometryInstance({
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geometry: createGeometryFromPositions(polygons[i]),
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});
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geometries.push(geometryInstance);
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}
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var geometry = GeometryPipeline.GeometryPipeline.combineInstances(geometries)[0];
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var boundingSphere = Transforms.BoundingSphere.fromPoints(polygonHierarchy.positions);
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return new GeometryAttribute.Geometry({
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attributes: geometry.attributes,
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indices: geometry.indices,
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primitiveType: geometry.primitiveType,
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boundingSphere: boundingSphere,
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});
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};
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function createCoplanarPolygonOutlineGeometry(polygonGeometry, offset) {
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if (when.defined(offset)) {
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polygonGeometry = CoplanarPolygonOutlineGeometry.unpack(
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polygonGeometry,
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offset
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);
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}
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polygonGeometry._ellipsoid = Matrix2.Ellipsoid.clone(polygonGeometry._ellipsoid);
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return CoplanarPolygonOutlineGeometry.createGeometry(polygonGeometry);
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}
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return createCoplanarPolygonOutlineGeometry;
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}));
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//# sourceMappingURL=createCoplanarPolygonOutlineGeometry.js.map
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