399 lines
14 KiB
JavaScript
399 lines
14 KiB
JavaScript
/**
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* @license
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* Cesium - https://github.com/CesiumGS/cesium
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* Version 1.117
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*
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* Copyright 2011-2022 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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import {
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Color_default
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} from "./chunk-KPY4F4BW.js";
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import {
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ArcType_default
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} from "./chunk-YLZTCEBJ.js";
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import {
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PolylinePipeline_default
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} from "./chunk-ZWPIM77Q.js";
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import "./chunk-2CSEEWHN.js";
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import "./chunk-CYAJYEKW.js";
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import "./chunk-G7CJQKKD.js";
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import "./chunk-FOZQIHZK.js";
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import {
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IndexDatatype_default
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} from "./chunk-WWP3I7R5.js";
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import {
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GeometryAttributes_default
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} from "./chunk-RL73GOEF.js";
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import {
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GeometryAttribute_default,
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Geometry_default,
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PrimitiveType_default
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} from "./chunk-34DGOKCO.js";
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import {
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BoundingSphere_default
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} from "./chunk-NI2R52QD.js";
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import "./chunk-I5TDPPC4.js";
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import {
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ComponentDatatype_default
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} from "./chunk-TMMOULW3.js";
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import {
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Cartesian3_default,
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Ellipsoid_default
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} from "./chunk-C5CE4OG6.js";
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import {
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Math_default
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} from "./chunk-4PHPQRSH.js";
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import "./chunk-PEABJLCK.js";
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import "./chunk-WFICTTOE.js";
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import {
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defaultValue_default
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} from "./chunk-UCPPWV64.js";
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import {
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DeveloperError_default
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} from "./chunk-U4IMCOF5.js";
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import {
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defined_default
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} from "./chunk-BDUJXBVF.js";
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// packages/engine/Source/Core/SimplePolylineGeometry.js
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function interpolateColors(p0, p1, color0, color1, minDistance, array, offset) {
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const numPoints = PolylinePipeline_default.numberOfPoints(p0, p1, minDistance);
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let i;
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const r0 = color0.red;
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const g0 = color0.green;
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const b0 = color0.blue;
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const a0 = color0.alpha;
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const r1 = color1.red;
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const g1 = color1.green;
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const b1 = color1.blue;
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const a1 = color1.alpha;
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if (Color_default.equals(color0, color1)) {
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for (i = 0; i < numPoints; i++) {
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array[offset++] = Color_default.floatToByte(r0);
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array[offset++] = Color_default.floatToByte(g0);
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array[offset++] = Color_default.floatToByte(b0);
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array[offset++] = Color_default.floatToByte(a0);
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}
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return offset;
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}
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const redPerVertex = (r1 - r0) / numPoints;
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const greenPerVertex = (g1 - g0) / numPoints;
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const bluePerVertex = (b1 - b0) / numPoints;
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const alphaPerVertex = (a1 - a0) / numPoints;
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let index = offset;
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for (i = 0; i < numPoints; i++) {
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array[index++] = Color_default.floatToByte(r0 + i * redPerVertex);
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array[index++] = Color_default.floatToByte(g0 + i * greenPerVertex);
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array[index++] = Color_default.floatToByte(b0 + i * bluePerVertex);
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array[index++] = Color_default.floatToByte(a0 + i * alphaPerVertex);
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}
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return index;
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}
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function SimplePolylineGeometry(options) {
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options = defaultValue_default(options, defaultValue_default.EMPTY_OBJECT);
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const positions = options.positions;
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const colors = options.colors;
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const colorsPerVertex = defaultValue_default(options.colorsPerVertex, false);
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if (!defined_default(positions) || positions.length < 2) {
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throw new DeveloperError_default("At least two positions are required.");
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}
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if (defined_default(colors) && (colorsPerVertex && colors.length < positions.length || !colorsPerVertex && colors.length < positions.length - 1)) {
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throw new DeveloperError_default("colors has an invalid length.");
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}
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this._positions = positions;
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this._colors = colors;
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this._colorsPerVertex = colorsPerVertex;
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this._arcType = defaultValue_default(options.arcType, ArcType_default.GEODESIC);
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this._granularity = defaultValue_default(
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options.granularity,
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Math_default.RADIANS_PER_DEGREE
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);
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this._ellipsoid = defaultValue_default(options.ellipsoid, Ellipsoid_default.WGS84);
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this._workerName = "createSimplePolylineGeometry";
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let numComponents = 1 + positions.length * Cartesian3_default.packedLength;
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numComponents += defined_default(colors) ? 1 + colors.length * Color_default.packedLength : 1;
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this.packedLength = numComponents + Ellipsoid_default.packedLength + 3;
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}
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SimplePolylineGeometry.pack = function(value, array, startingIndex) {
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if (!defined_default(value)) {
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throw new DeveloperError_default("value is required");
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}
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if (!defined_default(array)) {
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throw new DeveloperError_default("array is required");
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}
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startingIndex = defaultValue_default(startingIndex, 0);
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let i;
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const positions = value._positions;
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let length = positions.length;
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array[startingIndex++] = length;
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for (i = 0; i < length; ++i, startingIndex += Cartesian3_default.packedLength) {
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Cartesian3_default.pack(positions[i], array, startingIndex);
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}
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const colors = value._colors;
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length = defined_default(colors) ? colors.length : 0;
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array[startingIndex++] = length;
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for (i = 0; i < length; ++i, startingIndex += Color_default.packedLength) {
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Color_default.pack(colors[i], array, startingIndex);
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}
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Ellipsoid_default.pack(value._ellipsoid, array, startingIndex);
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startingIndex += Ellipsoid_default.packedLength;
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array[startingIndex++] = value._colorsPerVertex ? 1 : 0;
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array[startingIndex++] = value._arcType;
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array[startingIndex] = value._granularity;
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return array;
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};
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SimplePolylineGeometry.unpack = function(array, startingIndex, result) {
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if (!defined_default(array)) {
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throw new DeveloperError_default("array is required");
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}
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startingIndex = defaultValue_default(startingIndex, 0);
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let i;
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let length = array[startingIndex++];
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const positions = new Array(length);
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for (i = 0; i < length; ++i, startingIndex += Cartesian3_default.packedLength) {
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positions[i] = Cartesian3_default.unpack(array, startingIndex);
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}
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length = array[startingIndex++];
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const colors = length > 0 ? new Array(length) : void 0;
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for (i = 0; i < length; ++i, startingIndex += Color_default.packedLength) {
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colors[i] = Color_default.unpack(array, startingIndex);
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}
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const ellipsoid = Ellipsoid_default.unpack(array, startingIndex);
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startingIndex += Ellipsoid_default.packedLength;
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const colorsPerVertex = array[startingIndex++] === 1;
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const arcType = array[startingIndex++];
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const granularity = array[startingIndex];
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if (!defined_default(result)) {
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return new SimplePolylineGeometry({
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positions,
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colors,
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ellipsoid,
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colorsPerVertex,
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arcType,
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granularity
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});
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}
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result._positions = positions;
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result._colors = colors;
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result._ellipsoid = ellipsoid;
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result._colorsPerVertex = colorsPerVertex;
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result._arcType = arcType;
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result._granularity = granularity;
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return result;
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};
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var scratchArray1 = new Array(2);
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var scratchArray2 = new Array(2);
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var generateArcOptionsScratch = {
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positions: scratchArray1,
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height: scratchArray2,
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ellipsoid: void 0,
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minDistance: void 0,
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granularity: void 0
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};
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SimplePolylineGeometry.createGeometry = function(simplePolylineGeometry) {
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const positions = simplePolylineGeometry._positions;
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const colors = simplePolylineGeometry._colors;
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const colorsPerVertex = simplePolylineGeometry._colorsPerVertex;
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const arcType = simplePolylineGeometry._arcType;
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const granularity = simplePolylineGeometry._granularity;
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const ellipsoid = simplePolylineGeometry._ellipsoid;
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const minDistance = Math_default.chordLength(
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granularity,
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ellipsoid.maximumRadius
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);
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const perSegmentColors = defined_default(colors) && !colorsPerVertex;
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let i;
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const length = positions.length;
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let positionValues;
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let numberOfPositions;
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let colorValues;
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let color;
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let offset = 0;
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if (arcType === ArcType_default.GEODESIC || arcType === ArcType_default.RHUMB) {
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let subdivisionSize;
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let numberOfPointsFunction;
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let generateArcFunction;
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if (arcType === ArcType_default.GEODESIC) {
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subdivisionSize = Math_default.chordLength(
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granularity,
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ellipsoid.maximumRadius
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);
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numberOfPointsFunction = PolylinePipeline_default.numberOfPoints;
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generateArcFunction = PolylinePipeline_default.generateArc;
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} else {
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subdivisionSize = granularity;
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numberOfPointsFunction = PolylinePipeline_default.numberOfPointsRhumbLine;
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generateArcFunction = PolylinePipeline_default.generateRhumbArc;
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}
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const heights = PolylinePipeline_default.extractHeights(positions, ellipsoid);
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const generateArcOptions = generateArcOptionsScratch;
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if (arcType === ArcType_default.GEODESIC) {
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generateArcOptions.minDistance = minDistance;
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} else {
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generateArcOptions.granularity = granularity;
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}
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generateArcOptions.ellipsoid = ellipsoid;
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if (perSegmentColors) {
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let positionCount = 0;
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for (i = 0; i < length - 1; i++) {
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positionCount += numberOfPointsFunction(
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positions[i],
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positions[i + 1],
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subdivisionSize
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) + 1;
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}
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positionValues = new Float64Array(positionCount * 3);
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colorValues = new Uint8Array(positionCount * 4);
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generateArcOptions.positions = scratchArray1;
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generateArcOptions.height = scratchArray2;
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let ci = 0;
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for (i = 0; i < length - 1; ++i) {
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scratchArray1[0] = positions[i];
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scratchArray1[1] = positions[i + 1];
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scratchArray2[0] = heights[i];
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scratchArray2[1] = heights[i + 1];
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const pos = generateArcFunction(generateArcOptions);
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if (defined_default(colors)) {
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const segLen = pos.length / 3;
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color = colors[i];
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for (let k = 0; k < segLen; ++k) {
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colorValues[ci++] = Color_default.floatToByte(color.red);
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colorValues[ci++] = Color_default.floatToByte(color.green);
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colorValues[ci++] = Color_default.floatToByte(color.blue);
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colorValues[ci++] = Color_default.floatToByte(color.alpha);
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}
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}
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positionValues.set(pos, offset);
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offset += pos.length;
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}
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} else {
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generateArcOptions.positions = positions;
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generateArcOptions.height = heights;
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positionValues = new Float64Array(
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generateArcFunction(generateArcOptions)
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);
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if (defined_default(colors)) {
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colorValues = new Uint8Array(positionValues.length / 3 * 4);
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for (i = 0; i < length - 1; ++i) {
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const p0 = positions[i];
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const p1 = positions[i + 1];
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const c0 = colors[i];
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const c1 = colors[i + 1];
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offset = interpolateColors(
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p0,
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p1,
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c0,
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c1,
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minDistance,
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colorValues,
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offset
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);
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}
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const lastColor = colors[length - 1];
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colorValues[offset++] = Color_default.floatToByte(lastColor.red);
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colorValues[offset++] = Color_default.floatToByte(lastColor.green);
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colorValues[offset++] = Color_default.floatToByte(lastColor.blue);
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colorValues[offset++] = Color_default.floatToByte(lastColor.alpha);
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}
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}
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} else {
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numberOfPositions = perSegmentColors ? length * 2 - 2 : length;
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positionValues = new Float64Array(numberOfPositions * 3);
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colorValues = defined_default(colors) ? new Uint8Array(numberOfPositions * 4) : void 0;
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let positionIndex = 0;
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let colorIndex = 0;
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for (i = 0; i < length; ++i) {
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const p = positions[i];
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if (perSegmentColors && i > 0) {
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Cartesian3_default.pack(p, positionValues, positionIndex);
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positionIndex += 3;
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color = colors[i - 1];
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colorValues[colorIndex++] = Color_default.floatToByte(color.red);
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colorValues[colorIndex++] = Color_default.floatToByte(color.green);
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colorValues[colorIndex++] = Color_default.floatToByte(color.blue);
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colorValues[colorIndex++] = Color_default.floatToByte(color.alpha);
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}
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if (perSegmentColors && i === length - 1) {
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break;
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}
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Cartesian3_default.pack(p, positionValues, positionIndex);
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positionIndex += 3;
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if (defined_default(colors)) {
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color = colors[i];
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colorValues[colorIndex++] = Color_default.floatToByte(color.red);
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colorValues[colorIndex++] = Color_default.floatToByte(color.green);
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colorValues[colorIndex++] = Color_default.floatToByte(color.blue);
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colorValues[colorIndex++] = Color_default.floatToByte(color.alpha);
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}
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}
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}
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const attributes = new GeometryAttributes_default();
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attributes.position = new GeometryAttribute_default({
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componentDatatype: ComponentDatatype_default.DOUBLE,
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componentsPerAttribute: 3,
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values: positionValues
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});
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if (defined_default(colors)) {
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attributes.color = new GeometryAttribute_default({
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componentDatatype: ComponentDatatype_default.UNSIGNED_BYTE,
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componentsPerAttribute: 4,
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values: colorValues,
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normalize: true
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});
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}
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numberOfPositions = positionValues.length / 3;
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const numberOfIndices = (numberOfPositions - 1) * 2;
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const indices = IndexDatatype_default.createTypedArray(
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numberOfPositions,
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numberOfIndices
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);
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let index = 0;
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for (i = 0; i < numberOfPositions - 1; ++i) {
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indices[index++] = i;
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indices[index++] = i + 1;
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}
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return new Geometry_default({
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attributes,
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indices,
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primitiveType: PrimitiveType_default.LINES,
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boundingSphere: BoundingSphere_default.fromPoints(positions)
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});
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};
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var SimplePolylineGeometry_default = SimplePolylineGeometry;
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// packages/engine/Source/Workers/createSimplePolylineGeometry.js
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function createSimplePolylineGeometry(simplePolylineGeometry, offset) {
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if (defined_default(offset)) {
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simplePolylineGeometry = SimplePolylineGeometry_default.unpack(
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simplePolylineGeometry,
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offset
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);
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}
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simplePolylineGeometry._ellipsoid = Ellipsoid_default.clone(
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simplePolylineGeometry._ellipsoid
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);
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return SimplePolylineGeometry_default.createGeometry(simplePolylineGeometry);
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}
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var createSimplePolylineGeometry_default = createSimplePolylineGeometry;
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export {
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createSimplePolylineGeometry_default as default
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};
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