cesium
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CesiumJS is a JavaScript library for creating 3D globes and 2D maps in a web browser without a plugin.
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JavaScript
/* This file is automatically rebuilt by the Cesium build process. */
define(['./arrayRemoveDuplicates-06991c15', './Transforms-3ac41eb6', './Matrix2-fc7e9822', './RuntimeError-c581ca93', './ComponentDatatype-4a60b8d6', './CoplanarPolygonGeometryLibrary-fc33f0ca', './defaultValue-94c3e563', './GeometryAttribute-a441ff32', './GeometryAttributes-7df9bef6', './GeometryInstance-97bd792f', './GeometryPipeline-a88e5bfc', './IndexDatatype-db156785', './PolygonGeometryLibrary-5dd81ed2', './_commonjsHelpers-3aae1032-f55dc0c4', './combine-761d9c3f', './WebGLConstants-7dccdc96', './OrientedBoundingBox-1e0d2855', './EllipsoidTangentPlane-53e32153', './AxisAlignedBoundingBox-7a3018c0', './IntersectionTests-68fbc42d', './Plane-e20fba8c', './AttributeCompression-4d18cc04', './EncodedCartesian3-d3e254ea', './ArcType-0cf52f8c', './EllipsoidRhumbLine-daebc75b', './PolygonPipeline-113e3161'], (function (arrayRemoveDuplicates, Transforms, Matrix2, RuntimeError, ComponentDatatype, CoplanarPolygonGeometryLibrary, defaultValue, GeometryAttribute, GeometryAttributes, GeometryInstance, GeometryPipeline, IndexDatatype, PolygonGeometryLibrary, _commonjsHelpers3aae1032, combine, WebGLConstants, OrientedBoundingBox, EllipsoidTangentPlane, AxisAlignedBoundingBox, IntersectionTests, Plane, AttributeCompression, EncodedCartesian3, ArcType, EllipsoidRhumbLine, PolygonPipeline) { 'use strict';
function createGeometryFromPositions(positions) {
const length = positions.length;
const flatPositions = new Float64Array(length * 3);
const indices = IndexDatatype.IndexDatatype.createTypedArray(length, length * 2);
let positionIndex = 0;
let index = 0;
for (let i = 0; i < length; i++) {
const position = positions[i];
flatPositions[positionIndex++] = position.x;
flatPositions[positionIndex++] = position.y;
flatPositions[positionIndex++] = position.z;
indices[index++] = i;
indices[index++] = (i + 1) % length;
}
const attributes = new GeometryAttributes.GeometryAttributes({
position: new GeometryAttribute.GeometryAttribute({
componentDatatype: ComponentDatatype.ComponentDatatype.DOUBLE,
componentsPerAttribute: 3,
values: flatPositions,
}),
});
return new GeometryAttribute.Geometry({
attributes: attributes,
indices: indices,
primitiveType: GeometryAttribute.PrimitiveType.LINES,
});
}
/**
* A description of the outline of a polygon composed of arbitrary coplanar positions.
*
* @alias CoplanarPolygonOutlineGeometry
* @constructor
*
* @param {Object} options Object with the following properties:
* @param {PolygonHierarchy} options.polygonHierarchy A polygon hierarchy that can include holes.
*
* @see CoplanarPolygonOutlineGeometry.createGeometry
*
* @example
* const polygonOutline = new Cesium.CoplanarPolygonOutlineGeometry({
* positions : Cesium.Cartesian3.fromDegreesArrayHeights([
* -90.0, 30.0, 0.0,
* -90.0, 30.0, 1000.0,
* -80.0, 30.0, 1000.0,
* -80.0, 30.0, 0.0
* ])
* });
* const geometry = Cesium.CoplanarPolygonOutlineGeometry.createGeometry(polygonOutline);
*/
function CoplanarPolygonOutlineGeometry(options) {
options = defaultValue.defaultValue(options, defaultValue.defaultValue.EMPTY_OBJECT);
const polygonHierarchy = options.polygonHierarchy;
//>>includeStart('debug', pragmas.debug);
RuntimeError.Check.defined("options.polygonHierarchy", polygonHierarchy);
//>>includeEnd('debug');
this._polygonHierarchy = polygonHierarchy;
this._workerName = "createCoplanarPolygonOutlineGeometry";
/**
* The number of elements used to pack the object into an array.
* @type {Number}
*/
this.packedLength =
PolygonGeometryLibrary.PolygonGeometryLibrary.computeHierarchyPackedLength(
polygonHierarchy,
Matrix2.Cartesian3
) + 1;
}
/**
* A description of a coplanar polygon outline from an array of positions.
*
* @param {Object} options Object with the following properties:
* @param {Cartesian3[]} options.positions An array of positions that defined the corner points of the polygon.
* @returns {CoplanarPolygonOutlineGeometry}
*/
CoplanarPolygonOutlineGeometry.fromPositions = function (options) {
options = defaultValue.defaultValue(options, defaultValue.defaultValue.EMPTY_OBJECT);
//>>includeStart('debug', pragmas.debug);
RuntimeError.Check.defined("options.positions", options.positions);
//>>includeEnd('debug');
const newOptions = {
polygonHierarchy: {
positions: options.positions,
},
};
return new CoplanarPolygonOutlineGeometry(newOptions);
};
/**
* Stores the provided instance into the provided array.
*
* @param {CoplanarPolygonOutlineGeometry} value The value to pack.
* @param {Number[]} array The array to pack into.
* @param {Number} [startingIndex=0] The index into the array at which to start packing the elements.
*
* @returns {Number[]} The array that was packed into
*/
CoplanarPolygonOutlineGeometry.pack = function (value, array, startingIndex) {
//>>includeStart('debug', pragmas.debug);
RuntimeError.Check.typeOf.object("value", value);
RuntimeError.Check.defined("array", array);
//>>includeEnd('debug');
startingIndex = defaultValue.defaultValue(startingIndex, 0);
startingIndex = PolygonGeometryLibrary.PolygonGeometryLibrary.packPolygonHierarchy(
value._polygonHierarchy,
array,
startingIndex,
Matrix2.Cartesian3
);
array[startingIndex] = value.packedLength;
return array;
};
const scratchOptions = {
polygonHierarchy: {},
};
/**
* Retrieves an instance from a packed array.
*
* @param {Number[]} array The packed array.
* @param {Number} [startingIndex=0] The starting index of the element to be unpacked.
* @param {CoplanarPolygonOutlineGeometry} [result] The object into which to store the result.
* @returns {CoplanarPolygonOutlineGeometry} The modified result parameter or a new CoplanarPolygonOutlineGeometry instance if one was not provided.
*/
CoplanarPolygonOutlineGeometry.unpack = function (
array,
startingIndex,
result
) {
//>>includeStart('debug', pragmas.debug);
RuntimeError.Check.defined("array", array);
//>>includeEnd('debug');
startingIndex = defaultValue.defaultValue(startingIndex, 0);
const polygonHierarchy = PolygonGeometryLibrary.PolygonGeometryLibrary.unpackPolygonHierarchy(
array,
startingIndex,
Matrix2.Cartesian3
);
startingIndex = polygonHierarchy.startingIndex;
delete polygonHierarchy.startingIndex;
const packedLength = array[startingIndex];
if (!defaultValue.defined(result)) {
result = new CoplanarPolygonOutlineGeometry(scratchOptions);
}
result._polygonHierarchy = polygonHierarchy;
result.packedLength = packedLength;
return result;
};
/**
* Computes the geometric representation of an arbitrary coplanar polygon, including its vertices, indices, and a bounding sphere.
*
* @param {CoplanarPolygonOutlineGeometry} polygonGeometry A description of the polygon.
* @returns {Geometry|undefined} The computed vertices and indices.
*/
CoplanarPolygonOutlineGeometry.createGeometry = function (polygonGeometry) {
const polygonHierarchy = polygonGeometry._polygonHierarchy;
let outerPositions = polygonHierarchy.positions;
outerPositions = arrayRemoveDuplicates.arrayRemoveDuplicates(
outerPositions,
Matrix2.Cartesian3.equalsEpsilon,
true
);
if (outerPositions.length < 3) {
return;
}
const isValid = CoplanarPolygonGeometryLibrary.CoplanarPolygonGeometryLibrary.validOutline(outerPositions);
if (!isValid) {
return undefined;
}
const polygons = PolygonGeometryLibrary.PolygonGeometryLibrary.polygonOutlinesFromHierarchy(
polygonHierarchy,
false
);
if (polygons.length === 0) {
return undefined;
}
const geometries = [];
for (let i = 0; i < polygons.length; i++) {
const geometryInstance = new GeometryInstance.GeometryInstance({
geometry: createGeometryFromPositions(polygons[i]),
});
geometries.push(geometryInstance);
}
const geometry = GeometryPipeline.GeometryPipeline.combineInstances(geometries)[0];
const boundingSphere = Transforms.BoundingSphere.fromPoints(polygonHierarchy.positions);
return new GeometryAttribute.Geometry({
attributes: geometry.attributes,
indices: geometry.indices,
primitiveType: geometry.primitiveType,
boundingSphere: boundingSphere,
});
};
function createCoplanarPolygonOutlineGeometry(polygonGeometry, offset) {
if (defaultValue.defined(offset)) {
polygonGeometry = CoplanarPolygonOutlineGeometry.unpack(
polygonGeometry,
offset
);
}
polygonGeometry._ellipsoid = Matrix2.Ellipsoid.clone(polygonGeometry._ellipsoid);
return CoplanarPolygonOutlineGeometry.createGeometry(polygonGeometry);
}
return createCoplanarPolygonOutlineGeometry;
}));