/**
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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/master/LICENSE.md for full licensing details.
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*/
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define(['./when-8d13db60', './Check-70bec281', './Math-61ede240', './Cartographic-fe4be337', './Cartesian2-85064f09', './BoundingSphere-775c5788', './Cartesian4-5af5bb24', './RuntimeError-ba10bc3e', './WebGLConstants-4c11ee5f', './ComponentDatatype-5862616f', './GeometryAttribute-ed9d707f', './PrimitiveType-97893bc7', './FeatureDetection-7bd32c34', './Transforms-a1cf7267', './buildModuleUrl-e7952659', './GeometryAttributes-aacecde6', './IndexDatatype-9435b55f', './arrayFill-9766fb2e', './GeometryOffsetAttribute-999fc023', './VertexFormat-fe4db402', './EllipsoidGeometry-833b1e19'], function (when, Check, _Math, Cartographic, Cartesian2, BoundingSphere, Cartesian4, RuntimeError, WebGLConstants, ComponentDatatype, GeometryAttribute, PrimitiveType, FeatureDetection, Transforms, buildModuleUrl, GeometryAttributes, IndexDatatype, arrayFill, GeometryOffsetAttribute, VertexFormat, EllipsoidGeometry) { 'use strict';
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/**
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* A description of a sphere centered at the origin.
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*
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* @alias SphereGeometry
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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 {Number} [options.radius=1.0] The radius of the sphere.
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* @param {Number} [options.stackPartitions=64] The number of times to partition the ellipsoid into stacks.
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* @param {Number} [options.slicePartitions=64] The number of times to partition the ellipsoid into radial slices.
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* @param {VertexFormat} [options.vertexFormat=VertexFormat.DEFAULT] The vertex attributes to be computed.
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*
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* @exception {DeveloperError} options.slicePartitions cannot be less than three.
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* @exception {DeveloperError} options.stackPartitions cannot be less than three.
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*
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* @see SphereGeometry#createGeometry
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*
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* @example
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* var sphere = new Cesium.SphereGeometry({
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* radius : 100.0,
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* vertexFormat : Cesium.VertexFormat.POSITION_ONLY
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* });
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* var geometry = Cesium.SphereGeometry.createGeometry(sphere);
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*/
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function SphereGeometry(options) {
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var radius = when.defaultValue(options.radius, 1.0);
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var radii = new Cartographic.Cartesian3(radius, radius, radius);
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var ellipsoidOptions = {
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radii: radii,
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stackPartitions: options.stackPartitions,
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slicePartitions: options.slicePartitions,
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vertexFormat: options.vertexFormat
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};
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this._ellipsoidGeometry = new EllipsoidGeometry.EllipsoidGeometry(ellipsoidOptions);
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this._workerName = 'createSphereGeometry';
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}
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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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SphereGeometry.packedLength = EllipsoidGeometry.EllipsoidGeometry.packedLength;
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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 {SphereGeometry} 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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SphereGeometry.pack = function(value, array, startingIndex) {
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//>>includeStart('debug', pragmas.debug);
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Check.Check.typeOf.object('value', value);
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//>>includeEnd('debug');
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return EllipsoidGeometry.EllipsoidGeometry.pack(value._ellipsoidGeometry, array, startingIndex);
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};
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var scratchEllipsoidGeometry = new EllipsoidGeometry.EllipsoidGeometry();
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var scratchOptions = {
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radius : undefined,
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radii : new Cartographic.Cartesian3(),
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vertexFormat : new VertexFormat.VertexFormat(),
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stackPartitions : undefined,
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slicePartitions : undefined
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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 {SphereGeometry} [result] The object into which to store the result.
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* @returns {SphereGeometry} The modified result parameter or a new SphereGeometry instance if one was not provided.
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*/
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SphereGeometry.unpack = function(array, startingIndex, result) {
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var ellipsoidGeometry = EllipsoidGeometry.EllipsoidGeometry.unpack(array, startingIndex, scratchEllipsoidGeometry);
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scratchOptions.vertexFormat = VertexFormat.VertexFormat.clone(ellipsoidGeometry._vertexFormat, scratchOptions.vertexFormat);
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scratchOptions.stackPartitions = ellipsoidGeometry._stackPartitions;
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scratchOptions.slicePartitions = ellipsoidGeometry._slicePartitions;
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if (!when.defined(result)) {
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scratchOptions.radius = ellipsoidGeometry._radii.x;
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return new SphereGeometry(scratchOptions);
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}
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Cartographic.Cartesian3.clone(ellipsoidGeometry._radii, scratchOptions.radii);
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result._ellipsoidGeometry = new EllipsoidGeometry.EllipsoidGeometry(scratchOptions);
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return result;
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};
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/**
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* Computes the geometric representation of a sphere, including its vertices, indices, and a bounding sphere.
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*
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* @param {SphereGeometry} sphereGeometry A description of the sphere.
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* @returns {Geometry} The computed vertices and indices.
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*/
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SphereGeometry.createGeometry = function(sphereGeometry) {
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return EllipsoidGeometry.EllipsoidGeometry.createGeometry(sphereGeometry._ellipsoidGeometry);
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};
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function createSphereGeometry(sphereGeometry, offset) {
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if (when.defined(offset)) {
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sphereGeometry = SphereGeometry.unpack(sphereGeometry, offset);
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}
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return SphereGeometry.createGeometry(sphereGeometry);
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}
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return createSphereGeometry;
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});
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