512 lines
19 KiB
JavaScript
512 lines
19 KiB
JavaScript
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/**
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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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VertexFormat_default
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} from "./chunk-4KIUON73.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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Cartesian2_default,
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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/EllipsoidGeometry.js
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var scratchPosition = new Cartesian3_default();
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var scratchNormal = new Cartesian3_default();
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var scratchTangent = new Cartesian3_default();
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var scratchBitangent = new Cartesian3_default();
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var scratchNormalST = new Cartesian3_default();
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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 EllipsoidGeometry(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, 64));
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const slicePartitions = Math.round(defaultValue_default(options.slicePartitions, 64));
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const vertexFormat = defaultValue_default(options.vertexFormat, VertexFormat_default.DEFAULT);
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if (slicePartitions < 3) {
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throw new DeveloperError_default(
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"options.slicePartitions cannot be less than three."
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);
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}
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if (stackPartitions < 3) {
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throw new DeveloperError_default(
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"options.stackPartitions cannot be less than three."
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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._vertexFormat = VertexFormat_default.clone(vertexFormat);
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this._offsetAttribute = options.offsetAttribute;
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this._workerName = "createEllipsoidGeometry";
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}
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EllipsoidGeometry.packedLength = 2 * Cartesian3_default.packedLength + VertexFormat_default.packedLength + 7;
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EllipsoidGeometry.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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VertexFormat_default.pack(value._vertexFormat, array, startingIndex);
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startingIndex += VertexFormat_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] = 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 scratchVertexFormat = new VertexFormat_default();
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var scratchOptions = {
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radii: scratchRadii,
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innerRadii: scratchInnerRadii,
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vertexFormat: scratchVertexFormat,
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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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offsetAttribute: void 0
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};
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EllipsoidGeometry.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 vertexFormat = VertexFormat_default.unpack(
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array,
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startingIndex,
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scratchVertexFormat
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);
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startingIndex += VertexFormat_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 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.offsetAttribute = offsetAttribute === -1 ? void 0 : offsetAttribute;
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return new EllipsoidGeometry(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._vertexFormat = VertexFormat_default.clone(vertexFormat, result._vertexFormat);
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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._offsetAttribute = offsetAttribute === -1 ? void 0 : offsetAttribute;
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return result;
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};
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EllipsoidGeometry.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 vertexFormat = ellipsoidGeometry._vertexFormat;
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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 i;
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let j;
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let index = 0;
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const phis = [minimumCone];
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const thetas = [minimumClock];
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for (i = 0; i < stackPartitions; i++) {
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phis.push(
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minimumCone + i * (maximumCone - minimumCone) / (stackPartitions - 1)
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);
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}
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phis.push(maximumCone);
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for (j = 0; j < slicePartitions; j++) {
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thetas.push(
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minimumClock + j * (maximumClock - minimumClock) / (slicePartitions - 1)
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);
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}
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thetas.push(maximumClock);
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const numPhis = phis.length;
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const numThetas = thetas.length;
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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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let isClockOpen = 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 - 1;
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}
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if (maximumCone < Math.PI) {
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isBotOpen = true;
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extraIndices += slicePartitions - 1;
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}
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if ((maximumClock - minimumClock) % Math_default.TWO_PI) {
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isClockOpen = true;
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extraIndices += (stackPartitions - 1) * 2 + 1;
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} else {
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extraIndices += 1;
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}
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}
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const vertexCount = numThetas * numPhis * vertexMultiplier;
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const positions = new Float64Array(vertexCount * 3);
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const isInner = new Array(vertexCount).fill(false);
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const negateNormal = new Array(vertexCount).fill(false);
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const indexCount = slicePartitions * stackPartitions * vertexMultiplier;
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const numIndices = 6 * (indexCount + extraIndices + 1 - (slicePartitions + stackPartitions) * vertexMultiplier);
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const indices = IndexDatatype_default.createTypedArray(indexCount, numIndices);
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const normals = vertexFormat.normal ? new Float32Array(vertexCount * 3) : void 0;
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const tangents = vertexFormat.tangent ? new Float32Array(vertexCount * 3) : void 0;
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const bitangents = vertexFormat.bitangent ? new Float32Array(vertexCount * 3) : void 0;
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const st = vertexFormat.st ? new Float32Array(vertexCount * 2) : void 0;
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const sinPhi = new Array(numPhis);
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const cosPhi = new Array(numPhis);
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for (i = 0; i < numPhis; i++) {
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sinPhi[i] = sin(phis[i]);
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cosPhi[i] = cos(phis[i]);
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}
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const sinTheta = new Array(numThetas);
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const cosTheta = new Array(numThetas);
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for (j = 0; j < numThetas; j++) {
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cosTheta[j] = cos(thetas[j]);
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sinTheta[j] = sin(thetas[j]);
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}
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for (i = 0; i < numPhis; i++) {
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for (j = 0; j < numThetas; 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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let vertexIndex = vertexCount / 2;
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if (hasInnerSurface) {
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for (i = 0; i < numPhis; i++) {
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for (j = 0; j < numThetas; 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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isInner[vertexIndex] = true;
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if (i > 0 && i !== numPhis - 1 && j !== 0 && j !== numThetas - 1) {
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negateNormal[vertexIndex] = true;
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}
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vertexIndex++;
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}
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}
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}
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index = 0;
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let topOffset;
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let bottomOffset;
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for (i = 1; i < numPhis - 2; i++) {
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topOffset = i * numThetas;
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bottomOffset = (i + 1) * numThetas;
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for (j = 1; j < numThetas - 2; j++) {
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indices[index++] = bottomOffset + j;
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indices[index++] = bottomOffset + j + 1;
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indices[index++] = topOffset + j + 1;
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indices[index++] = bottomOffset + j;
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indices[index++] = topOffset + j + 1;
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indices[index++] = topOffset + j;
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}
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}
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if (hasInnerSurface) {
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const offset = numPhis * numThetas;
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for (i = 1; i < numPhis - 2; i++) {
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topOffset = offset + i * numThetas;
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bottomOffset = offset + (i + 1) * numThetas;
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for (j = 1; j < numThetas - 2; j++) {
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indices[index++] = bottomOffset + j;
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indices[index++] = topOffset + j;
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indices[index++] = topOffset + j + 1;
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indices[index++] = bottomOffset + j;
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indices[index++] = topOffset + j + 1;
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indices[index++] = bottomOffset + j + 1;
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}
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}
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}
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let outerOffset;
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let innerOffset;
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if (hasInnerSurface) {
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if (isTopOpen) {
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innerOffset = numPhis * numThetas;
|
||
|
|
for (i = 1; i < numThetas - 2; i++) {
|
||
|
|
indices[index++] = i;
|
||
|
|
indices[index++] = i + 1;
|
||
|
|
indices[index++] = innerOffset + i + 1;
|
||
|
|
indices[index++] = i;
|
||
|
|
indices[index++] = innerOffset + i + 1;
|
||
|
|
indices[index++] = innerOffset + i;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
if (isBotOpen) {
|
||
|
|
outerOffset = numPhis * numThetas - numThetas;
|
||
|
|
innerOffset = numPhis * numThetas * vertexMultiplier - numThetas;
|
||
|
|
for (i = 1; i < numThetas - 2; i++) {
|
||
|
|
indices[index++] = outerOffset + i + 1;
|
||
|
|
indices[index++] = outerOffset + i;
|
||
|
|
indices[index++] = innerOffset + i;
|
||
|
|
indices[index++] = outerOffset + i + 1;
|
||
|
|
indices[index++] = innerOffset + i;
|
||
|
|
indices[index++] = innerOffset + i + 1;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
if (isClockOpen) {
|
||
|
|
for (i = 1; i < numPhis - 2; i++) {
|
||
|
|
innerOffset = numThetas * numPhis + numThetas * i;
|
||
|
|
outerOffset = numThetas * i;
|
||
|
|
indices[index++] = innerOffset;
|
||
|
|
indices[index++] = outerOffset + numThetas;
|
||
|
|
indices[index++] = outerOffset;
|
||
|
|
indices[index++] = innerOffset;
|
||
|
|
indices[index++] = innerOffset + numThetas;
|
||
|
|
indices[index++] = outerOffset + numThetas;
|
||
|
|
}
|
||
|
|
for (i = 1; i < numPhis - 2; i++) {
|
||
|
|
innerOffset = numThetas * numPhis + numThetas * (i + 1) - 1;
|
||
|
|
outerOffset = numThetas * (i + 1) - 1;
|
||
|
|
indices[index++] = outerOffset + numThetas;
|
||
|
|
indices[index++] = innerOffset;
|
||
|
|
indices[index++] = outerOffset;
|
||
|
|
indices[index++] = outerOffset + numThetas;
|
||
|
|
indices[index++] = innerOffset + numThetas;
|
||
|
|
indices[index++] = innerOffset;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
const attributes = new GeometryAttributes_default();
|
||
|
|
if (vertexFormat.position) {
|
||
|
|
attributes.position = new GeometryAttribute_default({
|
||
|
|
componentDatatype: ComponentDatatype_default.DOUBLE,
|
||
|
|
componentsPerAttribute: 3,
|
||
|
|
values: positions
|
||
|
|
});
|
||
|
|
}
|
||
|
|
let stIndex = 0;
|
||
|
|
let normalIndex = 0;
|
||
|
|
let tangentIndex = 0;
|
||
|
|
let bitangentIndex = 0;
|
||
|
|
const vertexCountHalf = vertexCount / 2;
|
||
|
|
let ellipsoid;
|
||
|
|
const ellipsoidOuter = Ellipsoid_default.fromCartesian3(radii);
|
||
|
|
const ellipsoidInner = Ellipsoid_default.fromCartesian3(innerRadii);
|
||
|
|
if (vertexFormat.st || vertexFormat.normal || vertexFormat.tangent || vertexFormat.bitangent) {
|
||
|
|
for (i = 0; i < vertexCount; i++) {
|
||
|
|
ellipsoid = isInner[i] ? ellipsoidInner : ellipsoidOuter;
|
||
|
|
const position = Cartesian3_default.fromArray(positions, i * 3, scratchPosition);
|
||
|
|
const normal = ellipsoid.geodeticSurfaceNormal(position, scratchNormal);
|
||
|
|
if (negateNormal[i]) {
|
||
|
|
Cartesian3_default.negate(normal, normal);
|
||
|
|
}
|
||
|
|
if (vertexFormat.st) {
|
||
|
|
const normalST = Cartesian2_default.negate(normal, scratchNormalST);
|
||
|
|
st[stIndex++] = Math.atan2(normalST.y, normalST.x) / Math_default.TWO_PI + 0.5;
|
||
|
|
st[stIndex++] = Math.asin(normal.z) / Math.PI + 0.5;
|
||
|
|
}
|
||
|
|
if (vertexFormat.normal) {
|
||
|
|
normals[normalIndex++] = normal.x;
|
||
|
|
normals[normalIndex++] = normal.y;
|
||
|
|
normals[normalIndex++] = normal.z;
|
||
|
|
}
|
||
|
|
if (vertexFormat.tangent || vertexFormat.bitangent) {
|
||
|
|
const tangent = scratchTangent;
|
||
|
|
let tangetOffset = 0;
|
||
|
|
let unit;
|
||
|
|
if (isInner[i]) {
|
||
|
|
tangetOffset = vertexCountHalf;
|
||
|
|
}
|
||
|
|
if (!isTopOpen && i >= tangetOffset && i < tangetOffset + numThetas * 2) {
|
||
|
|
unit = Cartesian3_default.UNIT_X;
|
||
|
|
} else {
|
||
|
|
unit = Cartesian3_default.UNIT_Z;
|
||
|
|
}
|
||
|
|
Cartesian3_default.cross(unit, normal, tangent);
|
||
|
|
Cartesian3_default.normalize(tangent, tangent);
|
||
|
|
if (vertexFormat.tangent) {
|
||
|
|
tangents[tangentIndex++] = tangent.x;
|
||
|
|
tangents[tangentIndex++] = tangent.y;
|
||
|
|
tangents[tangentIndex++] = tangent.z;
|
||
|
|
}
|
||
|
|
if (vertexFormat.bitangent) {
|
||
|
|
const bitangent = Cartesian3_default.cross(normal, tangent, scratchBitangent);
|
||
|
|
Cartesian3_default.normalize(bitangent, bitangent);
|
||
|
|
bitangents[bitangentIndex++] = bitangent.x;
|
||
|
|
bitangents[bitangentIndex++] = bitangent.y;
|
||
|
|
bitangents[bitangentIndex++] = bitangent.z;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
if (vertexFormat.st) {
|
||
|
|
attributes.st = new GeometryAttribute_default({
|
||
|
|
componentDatatype: ComponentDatatype_default.FLOAT,
|
||
|
|
componentsPerAttribute: 2,
|
||
|
|
values: st
|
||
|
|
});
|
||
|
|
}
|
||
|
|
if (vertexFormat.normal) {
|
||
|
|
attributes.normal = new GeometryAttribute_default({
|
||
|
|
componentDatatype: ComponentDatatype_default.FLOAT,
|
||
|
|
componentsPerAttribute: 3,
|
||
|
|
values: normals
|
||
|
|
});
|
||
|
|
}
|
||
|
|
if (vertexFormat.tangent) {
|
||
|
|
attributes.tangent = new GeometryAttribute_default({
|
||
|
|
componentDatatype: ComponentDatatype_default.FLOAT,
|
||
|
|
componentsPerAttribute: 3,
|
||
|
|
values: tangents
|
||
|
|
});
|
||
|
|
}
|
||
|
|
if (vertexFormat.bitangent) {
|
||
|
|
attributes.bitangent = new GeometryAttribute_default({
|
||
|
|
componentDatatype: ComponentDatatype_default.FLOAT,
|
||
|
|
componentsPerAttribute: 3,
|
||
|
|
values: bitangents
|
||
|
|
});
|
||
|
|
}
|
||
|
|
}
|
||
|
|
if (defined_default(ellipsoidGeometry._offsetAttribute)) {
|
||
|
|
const length = positions.length;
|
||
|
|
const offsetValue = ellipsoidGeometry._offsetAttribute === GeometryOffsetAttribute_default.NONE ? 0 : 1;
|
||
|
|
const applyOffset = new Uint8Array(length / 3).fill(offsetValue);
|
||
|
|
attributes.applyOffset = new GeometryAttribute_default({
|
||
|
|
componentDatatype: ComponentDatatype_default.UNSIGNED_BYTE,
|
||
|
|
componentsPerAttribute: 1,
|
||
|
|
values: applyOffset
|
||
|
|
});
|
||
|
|
}
|
||
|
|
return new Geometry_default({
|
||
|
|
attributes,
|
||
|
|
indices,
|
||
|
|
primitiveType: PrimitiveType_default.TRIANGLES,
|
||
|
|
boundingSphere: BoundingSphere_default.fromEllipsoid(ellipsoidOuter),
|
||
|
|
offsetAttribute: ellipsoidGeometry._offsetAttribute
|
||
|
|
});
|
||
|
|
};
|
||
|
|
var unitEllipsoidGeometry;
|
||
|
|
EllipsoidGeometry.getUnitEllipsoid = function() {
|
||
|
|
if (!defined_default(unitEllipsoidGeometry)) {
|
||
|
|
unitEllipsoidGeometry = EllipsoidGeometry.createGeometry(
|
||
|
|
new EllipsoidGeometry({
|
||
|
|
radii: new Cartesian3_default(1, 1, 1),
|
||
|
|
vertexFormat: VertexFormat_default.POSITION_ONLY
|
||
|
|
})
|
||
|
|
);
|
||
|
|
}
|
||
|
|
return unitEllipsoidGeometry;
|
||
|
|
};
|
||
|
|
var EllipsoidGeometry_default = EllipsoidGeometry;
|
||
|
|
|
||
|
|
export {
|
||
|
|
EllipsoidGeometry_default
|
||
|
|
};
|