369 lines
14 KiB
JavaScript
369 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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GeometryOffsetAttribute_default
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} from "./chunk-S4XDCPKD.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 {
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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 {
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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/EllipsoidOutlineGeometry.js
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var defaultRadii = new Cartesian3_default(1, 1, 1);
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var cos = Math.cos;
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var sin = Math.sin;
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function EllipsoidOutlineGeometry(options) {
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options = defaultValue_default(options, defaultValue_default.EMPTY_OBJECT);
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const radii = defaultValue_default(options.radii, defaultRadii);
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const innerRadii = defaultValue_default(options.innerRadii, radii);
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const minimumClock = defaultValue_default(options.minimumClock, 0);
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const maximumClock = defaultValue_default(options.maximumClock, Math_default.TWO_PI);
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const minimumCone = defaultValue_default(options.minimumCone, 0);
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const maximumCone = defaultValue_default(options.maximumCone, Math_default.PI);
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const stackPartitions = Math.round(defaultValue_default(options.stackPartitions, 10));
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const slicePartitions = Math.round(defaultValue_default(options.slicePartitions, 8));
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const subdivisions = Math.round(defaultValue_default(options.subdivisions, 128));
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if (stackPartitions < 1) {
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throw new DeveloperError_default("options.stackPartitions cannot be less than 1");
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}
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if (slicePartitions < 0) {
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throw new DeveloperError_default("options.slicePartitions cannot be less than 0");
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}
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if (subdivisions < 0) {
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throw new DeveloperError_default(
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"options.subdivisions must be greater than or equal to zero."
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);
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}
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if (defined_default(options.offsetAttribute) && options.offsetAttribute === GeometryOffsetAttribute_default.TOP) {
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throw new DeveloperError_default(
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"GeometryOffsetAttribute.TOP is not a supported options.offsetAttribute for this geometry."
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);
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}
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this._radii = Cartesian3_default.clone(radii);
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this._innerRadii = Cartesian3_default.clone(innerRadii);
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this._minimumClock = minimumClock;
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this._maximumClock = maximumClock;
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this._minimumCone = minimumCone;
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this._maximumCone = maximumCone;
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this._stackPartitions = stackPartitions;
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this._slicePartitions = slicePartitions;
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this._subdivisions = subdivisions;
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this._offsetAttribute = options.offsetAttribute;
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this._workerName = "createEllipsoidOutlineGeometry";
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}
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EllipsoidOutlineGeometry.packedLength = 2 * Cartesian3_default.packedLength + 8;
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EllipsoidOutlineGeometry.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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Cartesian3_default.pack(value._radii, array, startingIndex);
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startingIndex += Cartesian3_default.packedLength;
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Cartesian3_default.pack(value._innerRadii, array, startingIndex);
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startingIndex += Cartesian3_default.packedLength;
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array[startingIndex++] = value._minimumClock;
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array[startingIndex++] = value._maximumClock;
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array[startingIndex++] = value._minimumCone;
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array[startingIndex++] = value._maximumCone;
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array[startingIndex++] = value._stackPartitions;
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array[startingIndex++] = value._slicePartitions;
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array[startingIndex++] = value._subdivisions;
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array[startingIndex] = defaultValue_default(value._offsetAttribute, -1);
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return array;
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};
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var scratchRadii = new Cartesian3_default();
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var scratchInnerRadii = new Cartesian3_default();
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var scratchOptions = {
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radii: scratchRadii,
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innerRadii: scratchInnerRadii,
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minimumClock: void 0,
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maximumClock: void 0,
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minimumCone: void 0,
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maximumCone: void 0,
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stackPartitions: void 0,
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slicePartitions: void 0,
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subdivisions: void 0,
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offsetAttribute: void 0
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};
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EllipsoidOutlineGeometry.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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const radii = Cartesian3_default.unpack(array, startingIndex, scratchRadii);
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startingIndex += Cartesian3_default.packedLength;
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const innerRadii = Cartesian3_default.unpack(array, startingIndex, scratchInnerRadii);
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startingIndex += Cartesian3_default.packedLength;
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const minimumClock = array[startingIndex++];
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const maximumClock = array[startingIndex++];
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const minimumCone = array[startingIndex++];
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const maximumCone = array[startingIndex++];
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const stackPartitions = array[startingIndex++];
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const slicePartitions = array[startingIndex++];
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const subdivisions = array[startingIndex++];
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const offsetAttribute = array[startingIndex];
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if (!defined_default(result)) {
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scratchOptions.minimumClock = minimumClock;
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scratchOptions.maximumClock = maximumClock;
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scratchOptions.minimumCone = minimumCone;
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scratchOptions.maximumCone = maximumCone;
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scratchOptions.stackPartitions = stackPartitions;
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scratchOptions.slicePartitions = slicePartitions;
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scratchOptions.subdivisions = subdivisions;
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scratchOptions.offsetAttribute = offsetAttribute === -1 ? void 0 : offsetAttribute;
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return new EllipsoidOutlineGeometry(scratchOptions);
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}
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result._radii = Cartesian3_default.clone(radii, result._radii);
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result._innerRadii = Cartesian3_default.clone(innerRadii, result._innerRadii);
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result._minimumClock = minimumClock;
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result._maximumClock = maximumClock;
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result._minimumCone = minimumCone;
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result._maximumCone = maximumCone;
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result._stackPartitions = stackPartitions;
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result._slicePartitions = slicePartitions;
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result._subdivisions = subdivisions;
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result._offsetAttribute = offsetAttribute === -1 ? void 0 : offsetAttribute;
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return result;
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};
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EllipsoidOutlineGeometry.createGeometry = function(ellipsoidGeometry) {
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const radii = ellipsoidGeometry._radii;
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if (radii.x <= 0 || radii.y <= 0 || radii.z <= 0) {
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return;
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}
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const innerRadii = ellipsoidGeometry._innerRadii;
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if (innerRadii.x <= 0 || innerRadii.y <= 0 || innerRadii.z <= 0) {
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return;
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}
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const minimumClock = ellipsoidGeometry._minimumClock;
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const maximumClock = ellipsoidGeometry._maximumClock;
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const minimumCone = ellipsoidGeometry._minimumCone;
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const maximumCone = ellipsoidGeometry._maximumCone;
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const subdivisions = ellipsoidGeometry._subdivisions;
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const ellipsoid = Ellipsoid_default.fromCartesian3(radii);
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let slicePartitions = ellipsoidGeometry._slicePartitions + 1;
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let stackPartitions = ellipsoidGeometry._stackPartitions + 1;
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slicePartitions = Math.round(
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slicePartitions * Math.abs(maximumClock - minimumClock) / Math_default.TWO_PI
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);
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stackPartitions = Math.round(
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stackPartitions * Math.abs(maximumCone - minimumCone) / Math_default.PI
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);
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if (slicePartitions < 2) {
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slicePartitions = 2;
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}
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if (stackPartitions < 2) {
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stackPartitions = 2;
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}
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let extraIndices = 0;
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let vertexMultiplier = 1;
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const hasInnerSurface = innerRadii.x !== radii.x || innerRadii.y !== radii.y || innerRadii.z !== radii.z;
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let isTopOpen = false;
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let isBotOpen = false;
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if (hasInnerSurface) {
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vertexMultiplier = 2;
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if (minimumCone > 0) {
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isTopOpen = true;
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extraIndices += slicePartitions;
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}
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if (maximumCone < Math.PI) {
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isBotOpen = true;
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extraIndices += slicePartitions;
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}
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}
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const vertexCount = subdivisions * vertexMultiplier * (stackPartitions + slicePartitions);
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const positions = new Float64Array(vertexCount * 3);
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const numIndices = 2 * (vertexCount + extraIndices - (slicePartitions + stackPartitions) * vertexMultiplier);
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const indices = IndexDatatype_default.createTypedArray(vertexCount, numIndices);
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let i;
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let j;
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let theta;
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let phi;
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let index = 0;
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const sinPhi = new Array(stackPartitions);
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const cosPhi = new Array(stackPartitions);
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for (i = 0; i < stackPartitions; i++) {
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phi = minimumCone + i * (maximumCone - minimumCone) / (stackPartitions - 1);
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sinPhi[i] = sin(phi);
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cosPhi[i] = cos(phi);
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}
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const sinTheta = new Array(subdivisions);
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const cosTheta = new Array(subdivisions);
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for (i = 0; i < subdivisions; i++) {
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theta = minimumClock + i * (maximumClock - minimumClock) / (subdivisions - 1);
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sinTheta[i] = sin(theta);
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cosTheta[i] = cos(theta);
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}
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for (i = 0; i < stackPartitions; i++) {
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for (j = 0; j < subdivisions; j++) {
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positions[index++] = radii.x * sinPhi[i] * cosTheta[j];
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positions[index++] = radii.y * sinPhi[i] * sinTheta[j];
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positions[index++] = radii.z * cosPhi[i];
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}
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}
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if (hasInnerSurface) {
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for (i = 0; i < stackPartitions; i++) {
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for (j = 0; j < subdivisions; j++) {
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positions[index++] = innerRadii.x * sinPhi[i] * cosTheta[j];
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positions[index++] = innerRadii.y * sinPhi[i] * sinTheta[j];
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positions[index++] = innerRadii.z * cosPhi[i];
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}
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}
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}
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sinPhi.length = subdivisions;
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cosPhi.length = subdivisions;
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for (i = 0; i < subdivisions; i++) {
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phi = minimumCone + i * (maximumCone - minimumCone) / (subdivisions - 1);
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sinPhi[i] = sin(phi);
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cosPhi[i] = cos(phi);
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}
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sinTheta.length = slicePartitions;
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cosTheta.length = slicePartitions;
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for (i = 0; i < slicePartitions; i++) {
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theta = minimumClock + i * (maximumClock - minimumClock) / (slicePartitions - 1);
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sinTheta[i] = sin(theta);
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cosTheta[i] = cos(theta);
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}
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for (i = 0; i < subdivisions; i++) {
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for (j = 0; j < slicePartitions; j++) {
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positions[index++] = radii.x * sinPhi[i] * cosTheta[j];
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positions[index++] = radii.y * sinPhi[i] * sinTheta[j];
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positions[index++] = radii.z * cosPhi[i];
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}
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}
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if (hasInnerSurface) {
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for (i = 0; i < subdivisions; i++) {
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for (j = 0; j < slicePartitions; j++) {
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positions[index++] = innerRadii.x * sinPhi[i] * cosTheta[j];
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positions[index++] = innerRadii.y * sinPhi[i] * sinTheta[j];
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positions[index++] = innerRadii.z * cosPhi[i];
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}
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}
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}
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index = 0;
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for (i = 0; i < stackPartitions * vertexMultiplier; i++) {
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const topOffset = i * subdivisions;
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for (j = 0; j < subdivisions - 1; j++) {
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indices[index++] = topOffset + j;
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indices[index++] = topOffset + j + 1;
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}
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}
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let offset = stackPartitions * subdivisions * vertexMultiplier;
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for (i = 0; i < slicePartitions; i++) {
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for (j = 0; j < subdivisions - 1; j++) {
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indices[index++] = offset + i + j * slicePartitions;
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indices[index++] = offset + i + (j + 1) * slicePartitions;
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}
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}
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if (hasInnerSurface) {
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offset = stackPartitions * subdivisions * vertexMultiplier + slicePartitions * subdivisions;
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for (i = 0; i < slicePartitions; i++) {
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for (j = 0; j < subdivisions - 1; j++) {
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indices[index++] = offset + i + j * slicePartitions;
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indices[index++] = offset + i + (j + 1) * slicePartitions;
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}
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}
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}
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if (hasInnerSurface) {
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let outerOffset = stackPartitions * subdivisions * vertexMultiplier;
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let innerOffset = outerOffset + subdivisions * slicePartitions;
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if (isTopOpen) {
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for (i = 0; i < slicePartitions; i++) {
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indices[index++] = outerOffset + i;
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indices[index++] = innerOffset + i;
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}
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}
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if (isBotOpen) {
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outerOffset += subdivisions * slicePartitions - slicePartitions;
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innerOffset += subdivisions * slicePartitions - slicePartitions;
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for (i = 0; i < slicePartitions; i++) {
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indices[index++] = outerOffset + i;
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indices[index++] = innerOffset + i;
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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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position: new GeometryAttribute_default({
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componentDatatype: ComponentDatatype_default.DOUBLE,
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componentsPerAttribute: 3,
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values: positions
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})
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});
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if (defined_default(ellipsoidGeometry._offsetAttribute)) {
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const length = positions.length;
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const offsetValue = ellipsoidGeometry._offsetAttribute === GeometryOffsetAttribute_default.NONE ? 0 : 1;
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const applyOffset = new Uint8Array(length / 3).fill(offsetValue);
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attributes.applyOffset = new GeometryAttribute_default({
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componentDatatype: ComponentDatatype_default.UNSIGNED_BYTE,
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componentsPerAttribute: 1,
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values: applyOffset
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});
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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.fromEllipsoid(ellipsoid),
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offsetAttribute: ellipsoidGeometry._offsetAttribute
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});
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};
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var EllipsoidOutlineGeometry_default = EllipsoidOutlineGeometry;
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export {
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EllipsoidOutlineGeometry_default
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};
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