@cesium/engine
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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
/**
* @license
* Cesium - https://github.com/CesiumGS/cesium
* Version 1.133.1
*
* Copyright 2011-2022 Cesium Contributors
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
* Columbus View (Pat. Pend.)
*
* Portions licensed separately.
* See https://github.com/CesiumGS/cesium/blob/main/LICENSE.md for full licensing details.
*/
import {
Math_default
} from "./chunk-E2533KCN.js";
import {
Check_default,
DeveloperError_default
} from "./chunk-7FEVXX5D.js";
import {
defined_default
} from "./chunk-UXIZVXIR.js";
// packages/engine/Source/Core/Cartesian3.js
function Cartesian3(x, y, z) {
this.x = x ?? 0;
this.y = y ?? 0;
this.z = z ?? 0;
}
Cartesian3.fromSpherical = function(spherical, result) {
Check_default.typeOf.object("spherical", spherical);
if (!defined_default(result)) {
result = new Cartesian3();
}
const clock = spherical.clock;
const cone = spherical.cone;
const magnitude = spherical.magnitude ?? 1;
const radial = magnitude * Math.sin(cone);
result.x = radial * Math.cos(clock);
result.y = radial * Math.sin(clock);
result.z = magnitude * Math.cos(cone);
return result;
};
Cartesian3.fromElements = function(x, y, z, result) {
if (!defined_default(result)) {
return new Cartesian3(x, y, z);
}
result.x = x;
result.y = y;
result.z = z;
return result;
};
Cartesian3.clone = function(cartesian, result) {
if (!defined_default(cartesian)) {
return void 0;
}
if (!defined_default(result)) {
return new Cartesian3(cartesian.x, cartesian.y, cartesian.z);
}
result.x = cartesian.x;
result.y = cartesian.y;
result.z = cartesian.z;
return result;
};
Cartesian3.fromCartesian4 = Cartesian3.clone;
Cartesian3.packedLength = 3;
Cartesian3.pack = function(value, array, startingIndex) {
Check_default.typeOf.object("value", value);
Check_default.defined("array", array);
startingIndex = startingIndex ?? 0;
array[startingIndex++] = value.x;
array[startingIndex++] = value.y;
array[startingIndex] = value.z;
return array;
};
Cartesian3.unpack = function(array, startingIndex, result) {
Check_default.defined("array", array);
startingIndex = startingIndex ?? 0;
if (!defined_default(result)) {
result = new Cartesian3();
}
result.x = array[startingIndex++];
result.y = array[startingIndex++];
result.z = array[startingIndex];
return result;
};
Cartesian3.packArray = function(array, result) {
Check_default.defined("array", array);
const length = array.length;
const resultLength = length * 3;
if (!defined_default(result)) {
result = new Array(resultLength);
} else if (!Array.isArray(result) && result.length !== resultLength) {
throw new DeveloperError_default(
"If result is a typed array, it must have exactly array.length * 3 elements"
);
} else if (result.length !== resultLength) {
result.length = resultLength;
}
for (let i = 0; i < length; ++i) {
Cartesian3.pack(array[i], result, i * 3);
}
return result;
};
Cartesian3.unpackArray = function(array, result) {
Check_default.defined("array", array);
Check_default.typeOf.number.greaterThanOrEquals("array.length", array.length, 3);
if (array.length % 3 !== 0) {
throw new DeveloperError_default("array length must be a multiple of 3.");
}
const length = array.length;
if (!defined_default(result)) {
result = new Array(length / 3);
} else {
result.length = length / 3;
}
for (let i = 0; i < length; i += 3) {
const index = i / 3;
result[index] = Cartesian3.unpack(array, i, result[index]);
}
return result;
};
Cartesian3.fromArray = Cartesian3.unpack;
Cartesian3.maximumComponent = function(cartesian) {
Check_default.typeOf.object("cartesian", cartesian);
return Math.max(cartesian.x, cartesian.y, cartesian.z);
};
Cartesian3.minimumComponent = function(cartesian) {
Check_default.typeOf.object("cartesian", cartesian);
return Math.min(cartesian.x, cartesian.y, cartesian.z);
};
Cartesian3.minimumByComponent = function(first, second, result) {
Check_default.typeOf.object("first", first);
Check_default.typeOf.object("second", second);
Check_default.typeOf.object("result", result);
result.x = Math.min(first.x, second.x);
result.y = Math.min(first.y, second.y);
result.z = Math.min(first.z, second.z);
return result;
};
Cartesian3.maximumByComponent = function(first, second, result) {
Check_default.typeOf.object("first", first);
Check_default.typeOf.object("second", second);
Check_default.typeOf.object("result", result);
result.x = Math.max(first.x, second.x);
result.y = Math.max(first.y, second.y);
result.z = Math.max(first.z, second.z);
return result;
};
Cartesian3.clamp = function(value, min, max, result) {
Check_default.typeOf.object("value", value);
Check_default.typeOf.object("min", min);
Check_default.typeOf.object("max", max);
Check_default.typeOf.object("result", result);
const x = Math_default.clamp(value.x, min.x, max.x);
const y = Math_default.clamp(value.y, min.y, max.y);
const z = Math_default.clamp(value.z, min.z, max.z);
result.x = x;
result.y = y;
result.z = z;
return result;
};
Cartesian3.magnitudeSquared = function(cartesian) {
Check_default.typeOf.object("cartesian", cartesian);
return cartesian.x * cartesian.x + cartesian.y * cartesian.y + cartesian.z * cartesian.z;
};
Cartesian3.magnitude = function(cartesian) {
return Math.sqrt(Cartesian3.magnitudeSquared(cartesian));
};
var distanceScratch = new Cartesian3();
Cartesian3.distance = function(left, right) {
Check_default.typeOf.object("left", left);
Check_default.typeOf.object("right", right);
Cartesian3.subtract(left, right, distanceScratch);
return Cartesian3.magnitude(distanceScratch);
};
Cartesian3.distanceSquared = function(left, right) {
Check_default.typeOf.object("left", left);
Check_default.typeOf.object("right", right);
Cartesian3.subtract(left, right, distanceScratch);
return Cartesian3.magnitudeSquared(distanceScratch);
};
Cartesian3.normalize = function(cartesian, result) {
Check_default.typeOf.object("cartesian", cartesian);
Check_default.typeOf.object("result", result);
const magnitude = Cartesian3.magnitude(cartesian);
result.x = cartesian.x / magnitude;
result.y = cartesian.y / magnitude;
result.z = cartesian.z / magnitude;
if (isNaN(result.x) || isNaN(result.y) || isNaN(result.z)) {
throw new DeveloperError_default("normalized result is not a number");
}
return result;
};
Cartesian3.dot = function(left, right) {
Check_default.typeOf.object("left", left);
Check_default.typeOf.object("right", right);
return left.x * right.x + left.y * right.y + left.z * right.z;
};
Cartesian3.multiplyComponents = function(left, right, result) {
Check_default.typeOf.object("left", left);
Check_default.typeOf.object("right", right);
Check_default.typeOf.object("result", result);
result.x = left.x * right.x;
result.y = left.y * right.y;
result.z = left.z * right.z;
return result;
};
Cartesian3.divideComponents = function(left, right, result) {
Check_default.typeOf.object("left", left);
Check_default.typeOf.object("right", right);
Check_default.typeOf.object("result", result);
result.x = left.x / right.x;
result.y = left.y / right.y;
result.z = left.z / right.z;
return result;
};
Cartesian3.add = function(left, right, result) {
Check_default.typeOf.object("left", left);
Check_default.typeOf.object("right", right);
Check_default.typeOf.object("result", result);
result.x = left.x + right.x;
result.y = left.y + right.y;
result.z = left.z + right.z;
return result;
};
Cartesian3.subtract = function(left, right, result) {
Check_default.typeOf.object("left", left);
Check_default.typeOf.object("right", right);
Check_default.typeOf.object("result", result);
result.x = left.x - right.x;
result.y = left.y - right.y;
result.z = left.z - right.z;
return result;
};
Cartesian3.multiplyByScalar = function(cartesian, scalar, result) {
Check_default.typeOf.object("cartesian", cartesian);
Check_default.typeOf.number("scalar", scalar);
Check_default.typeOf.object("result", result);
result.x = cartesian.x * scalar;
result.y = cartesian.y * scalar;
result.z = cartesian.z * scalar;
return result;
};
Cartesian3.divideByScalar = function(cartesian, scalar, result) {
Check_default.typeOf.object("cartesian", cartesian);
Check_default.typeOf.number("scalar", scalar);
Check_default.typeOf.object("result", result);
result.x = cartesian.x / scalar;
result.y = cartesian.y / scalar;
result.z = cartesian.z / scalar;
return result;
};
Cartesian3.negate = function(cartesian, result) {
Check_default.typeOf.object("cartesian", cartesian);
Check_default.typeOf.object("result", result);
result.x = -cartesian.x;
result.y = -cartesian.y;
result.z = -cartesian.z;
return result;
};
Cartesian3.abs = function(cartesian, result) {
Check_default.typeOf.object("cartesian", cartesian);
Check_default.typeOf.object("result", result);
result.x = Math.abs(cartesian.x);
result.y = Math.abs(cartesian.y);
result.z = Math.abs(cartesian.z);
return result;
};
var lerpScratch = new Cartesian3();
Cartesian3.lerp = function(start, end, t, result) {
Check_default.typeOf.object("start", start);
Check_default.typeOf.object("end", end);
Check_default.typeOf.number("t", t);
Check_default.typeOf.object("result", result);
Cartesian3.multiplyByScalar(end, t, lerpScratch);
result = Cartesian3.multiplyByScalar(start, 1 - t, result);
return Cartesian3.add(lerpScratch, result, result);
};
var angleBetweenScratch = new Cartesian3();
var angleBetweenScratch2 = new Cartesian3();
Cartesian3.angleBetween = function(left, right) {
Check_default.typeOf.object("left", left);
Check_default.typeOf.object("right", right);
Cartesian3.normalize(left, angleBetweenScratch);
Cartesian3.normalize(right, angleBetweenScratch2);
const cosine = Cartesian3.dot(angleBetweenScratch, angleBetweenScratch2);
const sine = Cartesian3.magnitude(
Cartesian3.cross(
angleBetweenScratch,
angleBetweenScratch2,
angleBetweenScratch
)
);
return Math.atan2(sine, cosine);
};
var mostOrthogonalAxisScratch = new Cartesian3();
Cartesian3.mostOrthogonalAxis = function(cartesian, result) {
Check_default.typeOf.object("cartesian", cartesian);
Check_default.typeOf.object("result", result);
const f = Cartesian3.normalize(cartesian, mostOrthogonalAxisScratch);
Cartesian3.abs(f, f);
if (f.x <= f.y) {
if (f.x <= f.z) {
result = Cartesian3.clone(Cartesian3.UNIT_X, result);
} else {
result = Cartesian3.clone(Cartesian3.UNIT_Z, result);
}
} else if (f.y <= f.z) {
result = Cartesian3.clone(Cartesian3.UNIT_Y, result);
} else {
result = Cartesian3.clone(Cartesian3.UNIT_Z, result);
}
return result;
};
Cartesian3.projectVector = function(a, b, result) {
Check_default.defined("a", a);
Check_default.defined("b", b);
Check_default.defined("result", result);
const scalar = Cartesian3.dot(a, b) / Cartesian3.dot(b, b);
return Cartesian3.multiplyByScalar(b, scalar, result);
};
Cartesian3.equals = function(left, right) {
return left === right || defined_default(left) && defined_default(right) && left.x === right.x && left.y === right.y && left.z === right.z;
};
Cartesian3.equalsArray = function(cartesian, array, offset) {
return cartesian.x === array[offset] && cartesian.y === array[offset + 1] && cartesian.z === array[offset + 2];
};
Cartesian3.equalsEpsilon = function(left, right, relativeEpsilon, absoluteEpsilon) {
return left === right || defined_default(left) && defined_default(right) && Math_default.equalsEpsilon(
left.x,
right.x,
relativeEpsilon,
absoluteEpsilon
) && Math_default.equalsEpsilon(
left.y,
right.y,
relativeEpsilon,
absoluteEpsilon
) && Math_default.equalsEpsilon(
left.z,
right.z,
relativeEpsilon,
absoluteEpsilon
);
};
Cartesian3.cross = function(left, right, result) {
Check_default.typeOf.object("left", left);
Check_default.typeOf.object("right", right);
Check_default.typeOf.object("result", result);
const leftX = left.x;
const leftY = left.y;
const leftZ = left.z;
const rightX = right.x;
const rightY = right.y;
const rightZ = right.z;
const x = leftY * rightZ - leftZ * rightY;
const y = leftZ * rightX - leftX * rightZ;
const z = leftX * rightY - leftY * rightX;
result.x = x;
result.y = y;
result.z = z;
return result;
};
Cartesian3.midpoint = function(left, right, result) {
Check_default.typeOf.object("left", left);
Check_default.typeOf.object("right", right);
Check_default.typeOf.object("result", result);
result.x = (left.x + right.x) * 0.5;
result.y = (left.y + right.y) * 0.5;
result.z = (left.z + right.z) * 0.5;
return result;
};
Cartesian3.fromDegrees = function(longitude, latitude, height, ellipsoid, result) {
Check_default.typeOf.number("longitude", longitude);
Check_default.typeOf.number("latitude", latitude);
longitude = Math_default.toRadians(longitude);
latitude = Math_default.toRadians(latitude);
return Cartesian3.fromRadians(longitude, latitude, height, ellipsoid, result);
};
var scratchN = new Cartesian3();
var scratchK = new Cartesian3();
Cartesian3._ellipsoidRadiiSquared = new Cartesian3(
6378137 * 6378137,
6378137 * 6378137,
6356752314245179e-9 * 6356752314245179e-9
);
Cartesian3.fromRadians = function(longitude, latitude, height, ellipsoid, result) {
Check_default.typeOf.number("longitude", longitude);
Check_default.typeOf.number("latitude", latitude);
height = height ?? 0;
const radiiSquared = !defined_default(ellipsoid) ? Cartesian3._ellipsoidRadiiSquared : ellipsoid.radiiSquared;
const cosLatitude = Math.cos(latitude);
scratchN.x = cosLatitude * Math.cos(longitude);
scratchN.y = cosLatitude * Math.sin(longitude);
scratchN.z = Math.sin(latitude);
scratchN = Cartesian3.normalize(scratchN, scratchN);
Cartesian3.multiplyComponents(radiiSquared, scratchN, scratchK);
const gamma = Math.sqrt(Cartesian3.dot(scratchN, scratchK));
scratchK = Cartesian3.divideByScalar(scratchK, gamma, scratchK);
scratchN = Cartesian3.multiplyByScalar(scratchN, height, scratchN);
if (!defined_default(result)) {
result = new Cartesian3();
}
return Cartesian3.add(scratchK, scratchN, result);
};
Cartesian3.fromDegreesArray = function(coordinates, ellipsoid, result) {
Check_default.defined("coordinates", coordinates);
if (coordinates.length < 2 || coordinates.length % 2 !== 0) {
throw new DeveloperError_default(
"the number of coordinates must be a multiple of 2 and at least 2"
);
}
const length = coordinates.length;
if (!defined_default(result)) {
result = new Array(length / 2);
} else {
result.length = length / 2;
}
for (let i = 0; i < length; i += 2) {
const longitude = coordinates[i];
const latitude = coordinates[i + 1];
const index = i / 2;
result[index] = Cartesian3.fromDegrees(
longitude,
latitude,
0,
ellipsoid,
result[index]
);
}
return result;
};
Cartesian3.fromRadiansArray = function(coordinates, ellipsoid, result) {
Check_default.defined("coordinates", coordinates);
if (coordinates.length < 2 || coordinates.length % 2 !== 0) {
throw new DeveloperError_default(
"the number of coordinates must be a multiple of 2 and at least 2"
);
}
const length = coordinates.length;
if (!defined_default(result)) {
result = new Array(length / 2);
} else {
result.length = length / 2;
}
for (let i = 0; i < length; i += 2) {
const longitude = coordinates[i];
const latitude = coordinates[i + 1];
const index = i / 2;
result[index] = Cartesian3.fromRadians(
longitude,
latitude,
0,
ellipsoid,
result[index]
);
}
return result;
};
Cartesian3.fromDegreesArrayHeights = function(coordinates, ellipsoid, result) {
Check_default.defined("coordinates", coordinates);
if (coordinates.length < 3 || coordinates.length % 3 !== 0) {
throw new DeveloperError_default(
"the number of coordinates must be a multiple of 3 and at least 3"
);
}
const length = coordinates.length;
if (!defined_default(result)) {
result = new Array(length / 3);
} else {
result.length = length / 3;
}
for (let i = 0; i < length; i += 3) {
const longitude = coordinates[i];
const latitude = coordinates[i + 1];
const height = coordinates[i + 2];
const index = i / 3;
result[index] = Cartesian3.fromDegrees(
longitude,
latitude,
height,
ellipsoid,
result[index]
);
}
return result;
};
Cartesian3.fromRadiansArrayHeights = function(coordinates, ellipsoid, result) {
Check_default.defined("coordinates", coordinates);
if (coordinates.length < 3 || coordinates.length % 3 !== 0) {
throw new DeveloperError_default(
"the number of coordinates must be a multiple of 3 and at least 3"
);
}
const length = coordinates.length;
if (!defined_default(result)) {
result = new Array(length / 3);
} else {
result.length = length / 3;
}
for (let i = 0; i < length; i += 3) {
const longitude = coordinates[i];
const latitude = coordinates[i + 1];
const height = coordinates[i + 2];
const index = i / 3;
result[index] = Cartesian3.fromRadians(
longitude,
latitude,
height,
ellipsoid,
result[index]
);
}
return result;
};
Cartesian3.ZERO = Object.freeze(new Cartesian3(0, 0, 0));
Cartesian3.ONE = Object.freeze(new Cartesian3(1, 1, 1));
Cartesian3.UNIT_X = Object.freeze(new Cartesian3(1, 0, 0));
Cartesian3.UNIT_Y = Object.freeze(new Cartesian3(0, 1, 0));
Cartesian3.UNIT_Z = Object.freeze(new Cartesian3(0, 0, 1));
Cartesian3.prototype.clone = function(result) {
return Cartesian3.clone(this, result);
};
Cartesian3.prototype.equals = function(right) {
return Cartesian3.equals(this, right);
};
Cartesian3.prototype.equalsEpsilon = function(right, relativeEpsilon, absoluteEpsilon) {
return Cartesian3.equalsEpsilon(
this,
right,
relativeEpsilon,
absoluteEpsilon
);
};
Cartesian3.prototype.toString = function() {
return `(${this.x}, ${this.y}, ${this.z})`;
};
var Cartesian3_default = Cartesian3;
// packages/engine/Source/Core/scaleToGeodeticSurface.js
var scaleToGeodeticSurfaceIntersection = new Cartesian3_default();
var scaleToGeodeticSurfaceGradient = new Cartesian3_default();
function scaleToGeodeticSurface(cartesian, oneOverRadii, oneOverRadiiSquared, centerToleranceSquared, result) {
if (!defined_default(cartesian)) {
throw new DeveloperError_default("cartesian is required.");
}
if (!defined_default(oneOverRadii)) {
throw new DeveloperError_default("oneOverRadii is required.");
}
if (!defined_default(oneOverRadiiSquared)) {
throw new DeveloperError_default("oneOverRadiiSquared is required.");
}
if (!defined_default(centerToleranceSquared)) {
throw new DeveloperError_default("centerToleranceSquared is required.");
}
const positionX = cartesian.x;
const positionY = cartesian.y;
const positionZ = cartesian.z;
const oneOverRadiiX = oneOverRadii.x;
const oneOverRadiiY = oneOverRadii.y;
const oneOverRadiiZ = oneOverRadii.z;
const x2 = positionX * positionX * oneOverRadiiX * oneOverRadiiX;
const y2 = positionY * positionY * oneOverRadiiY * oneOverRadiiY;
const z2 = positionZ * positionZ * oneOverRadiiZ * oneOverRadiiZ;
const squaredNorm = x2 + y2 + z2;
const ratio = Math.sqrt(1 / squaredNorm);
const intersection = Cartesian3_default.multiplyByScalar(
cartesian,
ratio,
scaleToGeodeticSurfaceIntersection
);
if (squaredNorm < centerToleranceSquared) {
return !isFinite(ratio) ? void 0 : Cartesian3_default.clone(intersection, result);
}
const oneOverRadiiSquaredX = oneOverRadiiSquared.x;
const oneOverRadiiSquaredY = oneOverRadiiSquared.y;
const oneOverRadiiSquaredZ = oneOverRadiiSquared.z;
const gradient = scaleToGeodeticSurfaceGradient;
gradient.x = intersection.x * oneOverRadiiSquaredX * 2;
gradient.y = intersection.y * oneOverRadiiSquaredY * 2;
gradient.z = intersection.z * oneOverRadiiSquaredZ * 2;
let lambda = (1 - ratio) * Cartesian3_default.magnitude(cartesian) / (0.5 * Cartesian3_default.magnitude(gradient));
let correction = 0;
let func;
let denominator;
let xMultiplier;
let yMultiplier;
let zMultiplier;
let xMultiplier2;
let yMultiplier2;
let zMultiplier2;
let xMultiplier3;
let yMultiplier3;
let zMultiplier3;
do {
lambda -= correction;
xMultiplier = 1 / (1 + lambda * oneOverRadiiSquaredX);
yMultiplier = 1 / (1 + lambda * oneOverRadiiSquaredY);
zMultiplier = 1 / (1 + lambda * oneOverRadiiSquaredZ);
xMultiplier2 = xMultiplier * xMultiplier;
yMultiplier2 = yMultiplier * yMultiplier;
zMultiplier2 = zMultiplier * zMultiplier;
xMultiplier3 = xMultiplier2 * xMultiplier;
yMultiplier3 = yMultiplier2 * yMultiplier;
zMultiplier3 = zMultiplier2 * zMultiplier;
func = x2 * xMultiplier2 + y2 * yMultiplier2 + z2 * zMultiplier2 - 1;
denominator = x2 * xMultiplier3 * oneOverRadiiSquaredX + y2 * yMultiplier3 * oneOverRadiiSquaredY + z2 * zMultiplier3 * oneOverRadiiSquaredZ;
const derivative = -2 * denominator;
correction = func / derivative;
} while (Math.abs(func) > Math_default.EPSILON12);
if (!defined_default(result)) {
return new Cartesian3_default(
positionX * xMultiplier,
positionY * yMultiplier,
positionZ * zMultiplier
);
}
result.x = positionX * xMultiplier;
result.y = positionY * yMultiplier;
result.z = positionZ * zMultiplier;
return result;
}
var scaleToGeodeticSurface_default = scaleToGeodeticSurface;
// packages/engine/Source/Core/Cartographic.js
function Cartographic(longitude, latitude, height) {
this.longitude = longitude ?? 0;
this.latitude = latitude ?? 0;
this.height = height ?? 0;
}
Cartographic.fromRadians = function(longitude, latitude, height, result) {
Check_default.typeOf.number("longitude", longitude);
Check_default.typeOf.number("latitude", latitude);
height = height ?? 0;
if (!defined_default(result)) {
return new Cartographic(longitude, latitude, height);
}
result.longitude = longitude;
result.latitude = latitude;
result.height = height;
return result;
};
Cartographic.fromDegrees = function(longitude, latitude, height, result) {
Check_default.typeOf.number("longitude", longitude);
Check_default.typeOf.number("latitude", latitude);
longitude = Math_default.toRadians(longitude);
latitude = Math_default.toRadians(latitude);
return Cartographic.fromRadians(longitude, latitude, height, result);
};
var cartesianToCartographicN = new Cartesian3_default();
var cartesianToCartographicP = new Cartesian3_default();
var cartesianToCartographicH = new Cartesian3_default();
Cartographic._ellipsoidOneOverRadii = new Cartesian3_default(
1 / 6378137,
1 / 6378137,
1 / 6356752314245179e-9
);
Cartographic._ellipsoidOneOverRadiiSquared = new Cartesian3_default(
1 / (6378137 * 6378137),
1 / (6378137 * 6378137),
1 / (6356752314245179e-9 * 6356752314245179e-9)
);
Cartographic._ellipsoidCenterToleranceSquared = Math_default.EPSILON1;
Cartographic.fromCartesian = function(cartesian, ellipsoid, result) {
const oneOverRadii = defined_default(ellipsoid) ? ellipsoid.oneOverRadii : Cartographic._ellipsoidOneOverRadii;
const oneOverRadiiSquared = defined_default(ellipsoid) ? ellipsoid.oneOverRadiiSquared : Cartographic._ellipsoidOneOverRadiiSquared;
const centerToleranceSquared = defined_default(ellipsoid) ? ellipsoid._centerToleranceSquared : Cartographic._ellipsoidCenterToleranceSquared;
const p = scaleToGeodeticSurface_default(
cartesian,
oneOverRadii,
oneOverRadiiSquared,
centerToleranceSquared,
cartesianToCartographicP
);
if (!defined_default(p)) {
return void 0;
}
let n = Cartesian3_default.multiplyComponents(
p,
oneOverRadiiSquared,
cartesianToCartographicN
);
n = Cartesian3_default.normalize(n, n);
const h = Cartesian3_default.subtract(cartesian, p, cartesianToCartographicH);
const longitude = Math.atan2(n.y, n.x);
const latitude = Math.asin(n.z);
const height = Math_default.sign(Cartesian3_default.dot(h, cartesian)) * Cartesian3_default.magnitude(h);
if (!defined_default(result)) {
return new Cartographic(longitude, latitude, height);
}
result.longitude = longitude;
result.latitude = latitude;
result.height = height;
return result;
};
Cartographic.toCartesian = function(cartographic, ellipsoid, result) {
Check_default.defined("cartographic", cartographic);
return Cartesian3_default.fromRadians(
cartographic.longitude,
cartographic.latitude,
cartographic.height,
ellipsoid,
result
);
};
Cartographic.clone = function(cartographic, result) {
if (!defined_default(cartographic)) {
return void 0;
}
if (!defined_default(result)) {
return new Cartographic(
cartographic.longitude,
cartographic.latitude,
cartographic.height
);
}
result.longitude = cartographic.longitude;
result.latitude = cartographic.latitude;
result.height = cartographic.height;
return result;
};
Cartographic.equals = function(left, right) {
return left === right || defined_default(left) && defined_default(right) && left.longitude === right.longitude && left.latitude === right.latitude && left.height === right.height;
};
Cartographic.equalsEpsilon = function(left, right, epsilon) {
epsilon = epsilon ?? 0;
return left === right || defined_default(left) && defined_default(right) && Math.abs(left.longitude - right.longitude) <= epsilon && Math.abs(left.latitude - right.latitude) <= epsilon && Math.abs(left.height - right.height) <= epsilon;
};
Cartographic.ZERO = Object.freeze(new Cartographic(0, 0, 0));
Cartographic.prototype.clone = function(result) {
return Cartographic.clone(this, result);
};
Cartographic.prototype.equals = function(right) {
return Cartographic.equals(this, right);
};
Cartographic.prototype.equalsEpsilon = function(right, epsilon) {
return Cartographic.equalsEpsilon(this, right, epsilon);
};
Cartographic.prototype.toString = function() {
return `(${this.longitude}, ${this.latitude}, ${this.height})`;
};
var Cartographic_default = Cartographic;
// packages/engine/Source/Core/Cartesian2.js
function Cartesian2(x, y) {
this.x = x ?? 0;
this.y = y ?? 0;
}
Cartesian2.fromElements = function(x, y, result) {
if (!defined_default(result)) {
return new Cartesian2(x, y);
}
result.x = x;
result.y = y;
return result;
};
Cartesian2.clone = function(cartesian, result) {
if (!defined_default(cartesian)) {
return void 0;
}
if (!defined_default(result)) {
return new Cartesian2(cartesian.x, cartesian.y);
}
result.x = cartesian.x;
result.y = cartesian.y;
return result;
};
Cartesian2.fromCartesian3 = Cartesian2.clone;
Cartesian2.fromCartesian4 = Cartesian2.clone;
Cartesian2.packedLength = 2;
Cartesian2.pack = function(value, array, startingIndex) {
Check_default.typeOf.object("value", value);
Check_default.defined("array", array);
startingIndex = startingIndex ?? 0;
array[startingIndex++] = value.x;
array[startingIndex] = value.y;
return array;
};
Cartesian2.unpack = function(array, startingIndex, result) {
Check_default.defined("array", array);
startingIndex = startingIndex ?? 0;
if (!defined_default(result)) {
result = new Cartesian2();
}
result.x = array[startingIndex++];
result.y = array[startingIndex];
return result;
};
Cartesian2.packArray = function(array, result) {
Check_default.defined("array", array);
const length = array.length;
const resultLength = length * 2;
if (!defined_default(result)) {
result = new Array(resultLength);
} else if (!Array.isArray(result) && result.length !== resultLength) {
throw new DeveloperError_default(
"If result is a typed array, it must have exactly array.length * 2 elements"
);
} else if (result.length !== resultLength) {
result.length = resultLength;
}
for (let i = 0; i < length; ++i) {
Cartesian2.pack(array[i], result, i * 2);
}
return result;
};
Cartesian2.unpackArray = function(array, result) {
Check_default.defined("array", array);
Check_default.typeOf.number.greaterThanOrEquals("array.length", array.length, 2);
if (array.length % 2 !== 0) {
throw new DeveloperError_default("array length must be a multiple of 2.");
}
const length = array.length;
if (!defined_default(result)) {
result = new Array(length / 2);
} else {
result.length = length / 2;
}
for (let i = 0; i < length; i += 2) {
const index = i / 2;
result[index] = Cartesian2.unpack(array, i, result[index]);
}
return result;
};
Cartesian2.fromArray = Cartesian2.unpack;
Cartesian2.maximumComponent = function(cartesian) {
Check_default.typeOf.object("cartesian", cartesian);
return Math.max(cartesian.x, cartesian.y);
};
Cartesian2.minimumComponent = function(cartesian) {
Check_default.typeOf.object("cartesian", cartesian);
return Math.min(cartesian.x, cartesian.y);
};
Cartesian2.minimumByComponent = function(first, second, result) {
Check_default.typeOf.object("first", first);
Check_default.typeOf.object("second", second);
Check_default.typeOf.object("result", result);
result.x = Math.min(first.x, second.x);
result.y = Math.min(first.y, second.y);
return result;
};
Cartesian2.maximumByComponent = function(first, second, result) {
Check_default.typeOf.object("first", first);
Check_default.typeOf.object("second", second);
Check_default.typeOf.object("result", result);
result.x = Math.max(first.x, second.x);
result.y = Math.max(first.y, second.y);
return result;
};
Cartesian2.clamp = function(value, min, max, result) {
Check_default.typeOf.object("value", value);
Check_default.typeOf.object("min", min);
Check_default.typeOf.object("max", max);
Check_default.typeOf.object("result", result);
const x = Math_default.clamp(value.x, min.x, max.x);
const y = Math_default.clamp(value.y, min.y, max.y);
result.x = x;
result.y = y;
return result;
};
Cartesian2.magnitudeSquared = function(cartesian) {
Check_default.typeOf.object("cartesian", cartesian);
return cartesian.x * cartesian.x + cartesian.y * cartesian.y;
};
Cartesian2.magnitude = function(cartesian) {
return Math.sqrt(Cartesian2.magnitudeSquared(cartesian));
};
var distanceScratch2 = new Cartesian2();
Cartesian2.distance = function(left, right) {
Check_default.typeOf.object("left", left);
Check_default.typeOf.object("right", right);
Cartesian2.subtract(left, right, distanceScratch2);
return Cartesian2.magnitude(distanceScratch2);
};
Cartesian2.distanceSquared = function(left, right) {
Check_default.typeOf.object("left", left);
Check_default.typeOf.object("right", right);
Cartesian2.subtract(left, right, distanceScratch2);
return Cartesian2.magnitudeSquared(distanceScratch2);
};
Cartesian2.normalize = function(cartesian, result) {
Check_default.typeOf.object("cartesian", cartesian);
Check_default.typeOf.object("result", result);
const magnitude = Cartesian2.magnitude(cartesian);
result.x = cartesian.x / magnitude;
result.y = cartesian.y / magnitude;
if (isNaN(result.x) || isNaN(result.y)) {
throw new DeveloperError_default("normalized result is not a number");
}
return result;
};
Cartesian2.dot = function(left, right) {
Check_default.typeOf.object("left", left);
Check_default.typeOf.object("right", right);
return left.x * right.x + left.y * right.y;
};
Cartesian2.cross = function(left, right) {
Check_default.typeOf.object("left", left);
Check_default.typeOf.object("right", right);
return left.x * right.y - left.y * right.x;
};
Cartesian2.multiplyComponents = function(left, right, result) {
Check_default.typeOf.object("left", left);
Check_default.typeOf.object("right", right);
Check_default.typeOf.object("result", result);
result.x = left.x * right.x;
result.y = left.y * right.y;
return result;
};
Cartesian2.divideComponents = function(left, right, result) {
Check_default.typeOf.object("left", left);
Check_default.typeOf.object("right", right);
Check_default.typeOf.object("result", result);
result.x = left.x / right.x;
result.y = left.y / right.y;
return result;
};
Cartesian2.add = function(left, right, result) {
Check_default.typeOf.object("left", left);
Check_default.typeOf.object("right", right);
Check_default.typeOf.object("result", result);
result.x = left.x + right.x;
result.y = left.y + right.y;
return result;
};
Cartesian2.subtract = function(left, right, result) {
Check_default.typeOf.object("left", left);
Check_default.typeOf.object("right", right);
Check_default.typeOf.object("result", result);
result.x = left.x - right.x;
result.y = left.y - right.y;
return result;
};
Cartesian2.multiplyByScalar = function(cartesian, scalar, result) {
Check_default.typeOf.object("cartesian", cartesian);
Check_default.typeOf.number("scalar", scalar);
Check_default.typeOf.object("result", result);
result.x = cartesian.x * scalar;
result.y = cartesian.y * scalar;
return result;
};
Cartesian2.divideByScalar = function(cartesian, scalar, result) {
Check_default.typeOf.object("cartesian", cartesian);
Check_default.typeOf.number("scalar", scalar);
Check_default.typeOf.object("result", result);
result.x = cartesian.x / scalar;
result.y = cartesian.y / scalar;
return result;
};
Cartesian2.negate = function(cartesian, result) {
Check_default.typeOf.object("cartesian", cartesian);
Check_default.typeOf.object("result", result);
result.x = -cartesian.x;
result.y = -cartesian.y;
return result;
};
Cartesian2.abs = function(cartesian, result) {
Check_default.typeOf.object("cartesian", cartesian);
Check_default.typeOf.object("result", result);
result.x = Math.abs(cartesian.x);
result.y = Math.abs(cartesian.y);
return result;
};
var lerpScratch2 = new Cartesian2();
Cartesian2.lerp = function(start, end, t, result) {
Check_default.typeOf.object("start", start);
Check_default.typeOf.object("end", end);
Check_default.typeOf.number("t", t);
Check_default.typeOf.object("result", result);
Cartesian2.multiplyByScalar(end, t, lerpScratch2);
result = Cartesian2.multiplyByScalar(start, 1 - t, result);
return Cartesian2.add(lerpScratch2, result, result);
};
var angleBetweenScratch3 = new Cartesian2();
var angleBetweenScratch22 = new Cartesian2();
Cartesian2.angleBetween = function(left, right) {
Check_default.typeOf.object("left", left);
Check_default.typeOf.object("right", right);
Cartesian2.normalize(left, angleBetweenScratch3);
Cartesian2.normalize(right, angleBetweenScratch22);
return Math_default.acosClamped(
Cartesian2.dot(angleBetweenScratch3, angleBetweenScratch22)
);
};
var mostOrthogonalAxisScratch2 = new Cartesian2();
Cartesian2.mostOrthogonalAxis = function(cartesian, result) {
Check_default.typeOf.object("cartesian", cartesian);
Check_default.typeOf.object("result", result);
const f = Cartesian2.normalize(cartesian, mostOrthogonalAxisScratch2);
Cartesian2.abs(f, f);
if (f.x <= f.y) {
result = Cartesian2.clone(Cartesian2.UNIT_X, result);
} else {
result = Cartesian2.clone(Cartesian2.UNIT_Y, result);
}
return result;
};
Cartesian2.equals = function(left, right) {
return left === right || defined_default(left) && defined_default(right) && left.x === right.x && left.y === right.y;
};
Cartesian2.equalsArray = function(cartesian, array, offset) {
return cartesian.x === array[offset] && cartesian.y === array[offset + 1];
};
Cartesian2.equalsEpsilon = function(left, right, relativeEpsilon, absoluteEpsilon) {
return left === right || defined_default(left) && defined_default(right) && Math_default.equalsEpsilon(
left.x,
right.x,
relativeEpsilon,
absoluteEpsilon
) && Math_default.equalsEpsilon(
left.y,
right.y,
relativeEpsilon,
absoluteEpsilon
);
};
Cartesian2.ZERO = Object.freeze(new Cartesian2(0, 0));
Cartesian2.ONE = Object.freeze(new Cartesian2(1, 1));
Cartesian2.UNIT_X = Object.freeze(new Cartesian2(1, 0));
Cartesian2.UNIT_Y = Object.freeze(new Cartesian2(0, 1));
Cartesian2.prototype.clone = function(result) {
return Cartesian2.clone(this, result);
};
Cartesian2.prototype.equals = function(right) {
return Cartesian2.equals(this, right);
};
Cartesian2.prototype.equalsEpsilon = function(right, relativeEpsilon, absoluteEpsilon) {
return Cartesian2.equalsEpsilon(
this,
right,
relativeEpsilon,
absoluteEpsilon
);
};
Cartesian2.prototype.toString = function() {
return `(${this.x}, ${this.y})`;
};
var Cartesian2_default = Cartesian2;
// packages/engine/Source/Core/Ellipsoid.js
function initialize(ellipsoid, x, y, z) {
x = x ?? 0;
y = y ?? 0;
z = z ?? 0;
Check_default.typeOf.number.greaterThanOrEquals("x", x, 0);
Check_default.typeOf.number.greaterThanOrEquals("y", y, 0);
Check_default.typeOf.number.greaterThanOrEquals("z", z, 0);
ellipsoid._radii = new Cartesian3_default(x, y, z);
ellipsoid._radiiSquared = new Cartesian3_default(x * x, y * y, z * z);
ellipsoid._radiiToTheFourth = new Cartesian3_default(
x * x * x * x,
y * y * y * y,
z * z * z * z
);
ellipsoid._oneOverRadii = new Cartesian3_default(
x === 0 ? 0 : 1 / x,
y === 0 ? 0 : 1 / y,
z === 0 ? 0 : 1 / z
);
ellipsoid._oneOverRadiiSquared = new Cartesian3_default(
x === 0 ? 0 : 1 / (x * x),
y === 0 ? 0 : 1 / (y * y),
z === 0 ? 0 : 1 / (z * z)
);
ellipsoid._minimumRadius = Math.min(x, y, z);
ellipsoid._maximumRadius = Math.max(x, y, z);
ellipsoid._centerToleranceSquared = Math_default.EPSILON1;
if (ellipsoid._radiiSquared.z !== 0) {
ellipsoid._squaredXOverSquaredZ = ellipsoid._radiiSquared.x / ellipsoid._radiiSquared.z;
}
}
function Ellipsoid(x, y, z) {
this._radii = void 0;
this._radiiSquared = void 0;
this._radiiToTheFourth = void 0;
this._oneOverRadii = void 0;
this._oneOverRadiiSquared = void 0;
this._minimumRadius = void 0;
this._maximumRadius = void 0;
this._centerToleranceSquared = void 0;
this._squaredXOverSquaredZ = void 0;
initialize(this, x, y, z);
}
Object.defineProperties(Ellipsoid.prototype, {
/**
* Gets the radii of the ellipsoid.
* @memberof Ellipsoid.prototype
* @type {Cartesian3}
* @readonly
*/
radii: {
get: function() {
return this._radii;
}
},
/**
* Gets the squared radii of the ellipsoid.
* @memberof Ellipsoid.prototype
* @type {Cartesian3}
* @readonly
*/
radiiSquared: {
get: function() {
return this._radiiSquared;
}
},
/**
* Gets the radii of the ellipsoid raise to the fourth power.
* @memberof Ellipsoid.prototype
* @type {Cartesian3}
* @readonly
*/
radiiToTheFourth: {
get: function() {
return this._radiiToTheFourth;
}
},
/**
* Gets one over the radii of the ellipsoid.
* @memberof Ellipsoid.prototype
* @type {Cartesian3}
* @readonly
*/
oneOverRadii: {
get: function() {
return this._oneOverRadii;
}
},
/**
* Gets one over the squared radii of the ellipsoid.
* @memberof Ellipsoid.prototype
* @type {Cartesian3}
* @readonly
*/
oneOverRadiiSquared: {
get: function() {
return this._oneOverRadiiSquared;
}
},
/**
* Gets the minimum radius of the ellipsoid.
* @memberof Ellipsoid.prototype
* @type {number}
* @readonly
*/
minimumRadius: {
get: function() {
return this._minimumRadius;
}
},
/**
* Gets the maximum radius of the ellipsoid.
* @memberof Ellipsoid.prototype
* @type {number}
* @readonly
*/
maximumRadius: {
get: function() {
return this._maximumRadius;
}
}
});
Ellipsoid.clone = function(ellipsoid, result) {
if (!defined_default(ellipsoid)) {
return void 0;
}
const radii = ellipsoid._radii;
if (!defined_default(result)) {
return new Ellipsoid(radii.x, radii.y, radii.z);
}
Cartesian3_default.clone(radii, result._radii);
Cartesian3_default.clone(ellipsoid._radiiSquared, result._radiiSquared);
Cartesian3_default.clone(ellipsoid._radiiToTheFourth, result._radiiToTheFourth);
Cartesian3_default.clone(ellipsoid._oneOverRadii, result._oneOverRadii);
Cartesian3_default.clone(ellipsoid._oneOverRadiiSquared, result._oneOverRadiiSquared);
result._minimumRadius = ellipsoid._minimumRadius;
result._maximumRadius = ellipsoid._maximumRadius;
result._centerToleranceSquared = ellipsoid._centerToleranceSquared;
return result;
};
Ellipsoid.fromCartesian3 = function(cartesian, result) {
if (!defined_default(result)) {
result = new Ellipsoid();
}
if (!defined_default(cartesian)) {
return result;
}
initialize(result, cartesian.x, cartesian.y, cartesian.z);
return result;
};
Ellipsoid.WGS84 = Object.freeze(
new Ellipsoid(6378137, 6378137, 6356752314245179e-9)
);
Ellipsoid.UNIT_SPHERE = Object.freeze(new Ellipsoid(1, 1, 1));
Ellipsoid.MOON = Object.freeze(
new Ellipsoid(
Math_default.LUNAR_RADIUS,
Math_default.LUNAR_RADIUS,
Math_default.LUNAR_RADIUS
)
);
Ellipsoid.MARS = Object.freeze(new Ellipsoid(3396190, 3396190, 3376200));
Ellipsoid._default = Ellipsoid.WGS84;
Object.defineProperties(Ellipsoid, {
/**
* The default ellipsoid used when not otherwise specified.
* @memberof Ellipsoid
* @type {Ellipsoid}
* @example
* Cesium.Ellipsoid.default = Cesium.Ellipsoid.MOON;
*
* // Apollo 11 landing site
* const position = Cesium.Cartesian3.fromRadians(
* 0.67416,
* 23.47315,
* );
*/
default: {
get: function() {
return Ellipsoid._default;
},
set: function(value) {
Check_default.typeOf.object("value", value);
Ellipsoid._default = value;
Cartesian3_default._ellipsoidRadiiSquared = value.radiiSquared;
Cartographic_default._ellipsoidOneOverRadii = value.oneOverRadii;
Cartographic_default._ellipsoidOneOverRadiiSquared = value.oneOverRadiiSquared;
Cartographic_default._ellipsoidCenterToleranceSquared = value._centerToleranceSquared;
}
}
});
Ellipsoid.prototype.clone = function(result) {
return Ellipsoid.clone(this, result);
};
Ellipsoid.packedLength = Cartesian3_default.packedLength;
Ellipsoid.pack = function(value, array, startingIndex) {
Check_default.typeOf.object("value", value);
Check_default.defined("array", array);
startingIndex = startingIndex ?? 0;
Cartesian3_default.pack(value._radii, array, startingIndex);
return array;
};
Ellipsoid.unpack = function(array, startingIndex, result) {
Check_default.defined("array", array);
startingIndex = startingIndex ?? 0;
const radii = Cartesian3_default.unpack(array, startingIndex);
return Ellipsoid.fromCartesian3(radii, result);
};
Ellipsoid.prototype.geocentricSurfaceNormal = Cartesian3_default.normalize;
Ellipsoid.prototype.geodeticSurfaceNormalCartographic = function(cartographic, result) {
Check_default.typeOf.object("cartographic", cartographic);
const longitude = cartographic.longitude;
const latitude = cartographic.latitude;
const cosLatitude = Math.cos(latitude);
const x = cosLatitude * Math.cos(longitude);
const y = cosLatitude * Math.sin(longitude);
const z = Math.sin(latitude);
if (!defined_default(result)) {
result = new Cartesian3_default();
}
result.x = x;
result.y = y;
result.z = z;
return Cartesian3_default.normalize(result, result);
};
Ellipsoid.prototype.geodeticSurfaceNormal = function(cartesian, result) {
Check_default.typeOf.object("cartesian", cartesian);
if (isNaN(cartesian.x) || isNaN(cartesian.y) || isNaN(cartesian.z)) {
throw new DeveloperError_default("cartesian has a NaN component");
}
if (Cartesian3_default.equalsEpsilon(cartesian, Cartesian3_default.ZERO, Math_default.EPSILON14)) {
return void 0;
}
if (!defined_default(result)) {
result = new Cartesian3_default();
}
result = Cartesian3_default.multiplyComponents(
cartesian,
this._oneOverRadiiSquared,
result
);
return Cartesian3_default.normalize(result, result);
};
var cartographicToCartesianNormal = new Cartesian3_default();
var cartographicToCartesianK = new Cartesian3_default();
Ellipsoid.prototype.cartographicToCartesian = function(cartographic, result) {
const n = cartographicToCartesianNormal;
const k = cartographicToCartesianK;
this.geodeticSurfaceNormalCartographic(cartographic, n);
Cartesian3_default.multiplyComponents(this._radiiSquared, n, k);
const gamma = Math.sqrt(Cartesian3_default.dot(n, k));
Cartesian3_default.divideByScalar(k, gamma, k);
Cartesian3_default.multiplyByScalar(n, cartographic.height, n);
if (!defined_default(result)) {
result = new Cartesian3_default();
}
return Cartesian3_default.add(k, n, result);
};
Ellipsoid.prototype.cartographicArrayToCartesianArray = function(cartographics, result) {
Check_default.defined("cartographics", cartographics);
const length = cartographics.length;
if (!defined_default(result)) {
result = new Array(length);
} else {
result.length = length;
}
for (let i = 0; i < length; i++) {
result[i] = this.cartographicToCartesian(cartographics[i], result[i]);
}
return result;
};
var cartesianToCartographicN2 = new Cartesian3_default();
var cartesianToCartographicP2 = new Cartesian3_default();
var cartesianToCartographicH2 = new Cartesian3_default();
Ellipsoid.prototype.cartesianToCartographic = function(cartesian, result) {
const p = this.scaleToGeodeticSurface(cartesian, cartesianToCartographicP2);
if (!defined_default(p)) {
return void 0;
}
const n = this.geodeticSurfaceNormal(p, cartesianToCartographicN2);
const h = Cartesian3_default.subtract(cartesian, p, cartesianToCartographicH2);
const longitude = Math.atan2(n.y, n.x);
const latitude = Math.asin(n.z);
const height = Math_default.sign(Cartesian3_default.dot(h, cartesian)) * Cartesian3_default.magnitude(h);
if (!defined_default(result)) {
return new Cartographic_default(longitude, latitude, height);
}
result.longitude = longitude;
result.latitude = latitude;
result.height = height;
return result;
};
Ellipsoid.prototype.cartesianArrayToCartographicArray = function(cartesians, result) {
Check_default.defined("cartesians", cartesians);
const length = cartesians.length;
if (!defined_default(result)) {
result = new Array(length);
} else {
result.length = length;
}
for (let i = 0; i < length; ++i) {
result[i] = this.cartesianToCartographic(cartesians[i], result[i]);
}
return result;
};
Ellipsoid.prototype.scaleToGeodeticSurface = function(cartesian, result) {
return scaleToGeodeticSurface_default(
cartesian,
this._oneOverRadii,
this._oneOverRadiiSquared,
this._centerToleranceSquared,
result
);
};
Ellipsoid.prototype.scaleToGeocentricSurface = function(cartesian, result) {
Check_default.typeOf.object("cartesian", cartesian);
if (!defined_default(result)) {
result = new Cartesian3_default();
}
const positionX = cartesian.x;
const positionY = cartesian.y;
const positionZ = cartesian.z;
const oneOverRadiiSquared = this._oneOverRadiiSquared;
const beta = 1 / Math.sqrt(
positionX * positionX * oneOverRadiiSquared.x + positionY * positionY * oneOverRadiiSquared.y + positionZ * positionZ * oneOverRadiiSquared.z
);
return Cartesian3_default.multiplyByScalar(cartesian, beta, result);
};
Ellipsoid.prototype.transformPositionToScaledSpace = function(position, result) {
if (!defined_default(result)) {
result = new Cartesian3_default();
}
return Cartesian3_default.multiplyComponents(position, this._oneOverRadii, result);
};
Ellipsoid.prototype.transformPositionFromScaledSpace = function(position, result) {
if (!defined_default(result)) {
result = new Cartesian3_default();
}
return Cartesian3_default.multiplyComponents(position, this._radii, result);
};
Ellipsoid.prototype.equals = function(right) {
return this === right || defined_default(right) && Cartesian3_default.equals(this._radii, right._radii);
};
Ellipsoid.prototype.toString = function() {
return this._radii.toString();
};
Ellipsoid.prototype.getSurfaceNormalIntersectionWithZAxis = function(position, buffer, result) {
Check_default.typeOf.object("position", position);
if (!Math_default.equalsEpsilon(
this._radii.x,
this._radii.y,
Math_default.EPSILON15
)) {
throw new DeveloperError_default(
"Ellipsoid must be an ellipsoid of revolution (radii.x == radii.y)"
);
}
Check_default.typeOf.number.greaterThan("Ellipsoid.radii.z", this._radii.z, 0);
buffer = buffer ?? 0;
const squaredXOverSquaredZ = this._squaredXOverSquaredZ;
if (!defined_default(result)) {
result = new Cartesian3_default();
}
result.x = 0;
result.y = 0;
result.z = position.z * (1 - squaredXOverSquaredZ);
if (Math.abs(result.z) >= this._radii.z - buffer) {
return void 0;
}
return result;
};
var scratchEndpoint = new Cartesian3_default();
Ellipsoid.prototype.getLocalCurvature = function(surfacePosition, result) {
Check_default.typeOf.object("surfacePosition", surfacePosition);
if (!defined_default(result)) {
result = new Cartesian2_default();
}
const primeVerticalE