391 lines
13 KiB
JavaScript
391 lines
13 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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EllipseGeometryLibrary_default
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} from "./chunk-GIFJ77E4.js";
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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/EllipseOutlineGeometry.js
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var scratchCartesian1 = new Cartesian3_default();
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var boundingSphereCenter = new Cartesian3_default();
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function computeEllipse(options) {
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const center = options.center;
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boundingSphereCenter = Cartesian3_default.multiplyByScalar(
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options.ellipsoid.geodeticSurfaceNormal(center, boundingSphereCenter),
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options.height,
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boundingSphereCenter
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);
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boundingSphereCenter = Cartesian3_default.add(
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center,
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boundingSphereCenter,
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boundingSphereCenter
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);
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const boundingSphere = new BoundingSphere_default(
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boundingSphereCenter,
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options.semiMajorAxis
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);
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const positions = EllipseGeometryLibrary_default.computeEllipsePositions(
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options,
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false,
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true
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).outerPositions;
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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: EllipseGeometryLibrary_default.raisePositionsToHeight(
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positions,
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options,
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false
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)
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})
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});
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const length = positions.length / 3;
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const indices = IndexDatatype_default.createTypedArray(length, length * 2);
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let index = 0;
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for (let i = 0; i < length; ++i) {
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indices[index++] = i;
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indices[index++] = (i + 1) % length;
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}
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return {
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boundingSphere,
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attributes,
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indices
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};
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}
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var topBoundingSphere = new BoundingSphere_default();
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var bottomBoundingSphere = new BoundingSphere_default();
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function computeExtrudedEllipse(options) {
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const center = options.center;
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const ellipsoid = options.ellipsoid;
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const semiMajorAxis = options.semiMajorAxis;
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let scaledNormal = Cartesian3_default.multiplyByScalar(
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ellipsoid.geodeticSurfaceNormal(center, scratchCartesian1),
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options.height,
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scratchCartesian1
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);
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topBoundingSphere.center = Cartesian3_default.add(
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center,
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scaledNormal,
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topBoundingSphere.center
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);
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topBoundingSphere.radius = semiMajorAxis;
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scaledNormal = Cartesian3_default.multiplyByScalar(
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ellipsoid.geodeticSurfaceNormal(center, scaledNormal),
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options.extrudedHeight,
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scaledNormal
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);
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bottomBoundingSphere.center = Cartesian3_default.add(
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center,
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scaledNormal,
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bottomBoundingSphere.center
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);
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bottomBoundingSphere.radius = semiMajorAxis;
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let positions = EllipseGeometryLibrary_default.computeEllipsePositions(
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options,
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false,
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true
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).outerPositions;
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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: EllipseGeometryLibrary_default.raisePositionsToHeight(
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positions,
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options,
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true
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)
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})
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});
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positions = attributes.position.values;
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const boundingSphere = BoundingSphere_default.union(
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topBoundingSphere,
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bottomBoundingSphere
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);
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let length = positions.length / 3;
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if (defined_default(options.offsetAttribute)) {
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let applyOffset = new Uint8Array(length);
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if (options.offsetAttribute === GeometryOffsetAttribute_default.TOP) {
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applyOffset = applyOffset.fill(1, 0, length / 2);
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} else {
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const offsetValue = options.offsetAttribute === GeometryOffsetAttribute_default.NONE ? 0 : 1;
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applyOffset = applyOffset.fill(offsetValue);
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}
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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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let numberOfVerticalLines = defaultValue_default(options.numberOfVerticalLines, 16);
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numberOfVerticalLines = Math_default.clamp(
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numberOfVerticalLines,
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0,
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length / 2
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);
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const indices = IndexDatatype_default.createTypedArray(
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length,
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length * 2 + numberOfVerticalLines * 2
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);
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length /= 2;
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let index = 0;
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let i;
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for (i = 0; i < length; ++i) {
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indices[index++] = i;
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indices[index++] = (i + 1) % length;
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indices[index++] = i + length;
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indices[index++] = (i + 1) % length + length;
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}
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let numSide;
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if (numberOfVerticalLines > 0) {
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const numSideLines = Math.min(numberOfVerticalLines, length);
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numSide = Math.round(length / numSideLines);
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const maxI = Math.min(numSide * numberOfVerticalLines, length);
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for (i = 0; i < maxI; i += numSide) {
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indices[index++] = i;
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indices[index++] = i + length;
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}
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}
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return {
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boundingSphere,
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attributes,
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indices
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};
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}
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function EllipseOutlineGeometry(options) {
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options = defaultValue_default(options, defaultValue_default.EMPTY_OBJECT);
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const center = options.center;
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const ellipsoid = defaultValue_default(options.ellipsoid, Ellipsoid_default.WGS84);
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const semiMajorAxis = options.semiMajorAxis;
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const semiMinorAxis = options.semiMinorAxis;
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const granularity = defaultValue_default(
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options.granularity,
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Math_default.RADIANS_PER_DEGREE
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);
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if (!defined_default(center)) {
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throw new DeveloperError_default("center is required.");
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}
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if (!defined_default(semiMajorAxis)) {
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throw new DeveloperError_default("semiMajorAxis is required.");
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}
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if (!defined_default(semiMinorAxis)) {
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throw new DeveloperError_default("semiMinorAxis is required.");
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}
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if (semiMajorAxis < semiMinorAxis) {
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throw new DeveloperError_default(
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"semiMajorAxis must be greater than or equal to the semiMinorAxis."
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);
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}
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if (granularity <= 0) {
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throw new DeveloperError_default("granularity must be greater than zero.");
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}
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const height = defaultValue_default(options.height, 0);
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const extrudedHeight = defaultValue_default(options.extrudedHeight, height);
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this._center = Cartesian3_default.clone(center);
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this._semiMajorAxis = semiMajorAxis;
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this._semiMinorAxis = semiMinorAxis;
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this._ellipsoid = Ellipsoid_default.clone(ellipsoid);
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this._rotation = defaultValue_default(options.rotation, 0);
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this._height = Math.max(extrudedHeight, height);
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this._granularity = granularity;
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this._extrudedHeight = Math.min(extrudedHeight, height);
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this._numberOfVerticalLines = Math.max(
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defaultValue_default(options.numberOfVerticalLines, 16),
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0
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);
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this._offsetAttribute = options.offsetAttribute;
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this._workerName = "createEllipseOutlineGeometry";
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}
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EllipseOutlineGeometry.packedLength = Cartesian3_default.packedLength + Ellipsoid_default.packedLength + 8;
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EllipseOutlineGeometry.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._center, array, startingIndex);
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startingIndex += Cartesian3_default.packedLength;
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Ellipsoid_default.pack(value._ellipsoid, array, startingIndex);
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startingIndex += Ellipsoid_default.packedLength;
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array[startingIndex++] = value._semiMajorAxis;
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array[startingIndex++] = value._semiMinorAxis;
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array[startingIndex++] = value._rotation;
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array[startingIndex++] = value._height;
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array[startingIndex++] = value._granularity;
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array[startingIndex++] = value._extrudedHeight;
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array[startingIndex++] = value._numberOfVerticalLines;
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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 scratchCenter = new Cartesian3_default();
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var scratchEllipsoid = new Ellipsoid_default();
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var scratchOptions = {
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center: scratchCenter,
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ellipsoid: scratchEllipsoid,
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semiMajorAxis: void 0,
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semiMinorAxis: void 0,
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rotation: void 0,
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height: void 0,
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granularity: void 0,
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extrudedHeight: void 0,
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numberOfVerticalLines: void 0,
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offsetAttribute: void 0
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};
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EllipseOutlineGeometry.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 center = Cartesian3_default.unpack(array, startingIndex, scratchCenter);
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startingIndex += Cartesian3_default.packedLength;
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const ellipsoid = Ellipsoid_default.unpack(array, startingIndex, scratchEllipsoid);
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startingIndex += Ellipsoid_default.packedLength;
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const semiMajorAxis = array[startingIndex++];
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const semiMinorAxis = array[startingIndex++];
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const rotation = array[startingIndex++];
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const height = array[startingIndex++];
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const granularity = array[startingIndex++];
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const extrudedHeight = array[startingIndex++];
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const numberOfVerticalLines = array[startingIndex++];
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const offsetAttribute = array[startingIndex];
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if (!defined_default(result)) {
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scratchOptions.height = height;
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scratchOptions.extrudedHeight = extrudedHeight;
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scratchOptions.granularity = granularity;
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scratchOptions.rotation = rotation;
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scratchOptions.semiMajorAxis = semiMajorAxis;
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scratchOptions.semiMinorAxis = semiMinorAxis;
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scratchOptions.numberOfVerticalLines = numberOfVerticalLines;
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scratchOptions.offsetAttribute = offsetAttribute === -1 ? void 0 : offsetAttribute;
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return new EllipseOutlineGeometry(scratchOptions);
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}
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result._center = Cartesian3_default.clone(center, result._center);
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result._ellipsoid = Ellipsoid_default.clone(ellipsoid, result._ellipsoid);
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result._semiMajorAxis = semiMajorAxis;
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result._semiMinorAxis = semiMinorAxis;
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result._rotation = rotation;
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result._height = height;
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result._granularity = granularity;
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result._extrudedHeight = extrudedHeight;
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result._numberOfVerticalLines = numberOfVerticalLines;
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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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EllipseOutlineGeometry.createGeometry = function(ellipseGeometry) {
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if (ellipseGeometry._semiMajorAxis <= 0 || ellipseGeometry._semiMinorAxis <= 0) {
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return;
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}
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const height = ellipseGeometry._height;
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const extrudedHeight = ellipseGeometry._extrudedHeight;
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const extrude = !Math_default.equalsEpsilon(
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height,
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extrudedHeight,
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0,
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Math_default.EPSILON2
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);
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ellipseGeometry._center = ellipseGeometry._ellipsoid.scaleToGeodeticSurface(
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ellipseGeometry._center,
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ellipseGeometry._center
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);
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const options = {
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center: ellipseGeometry._center,
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semiMajorAxis: ellipseGeometry._semiMajorAxis,
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semiMinorAxis: ellipseGeometry._semiMinorAxis,
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ellipsoid: ellipseGeometry._ellipsoid,
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rotation: ellipseGeometry._rotation,
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height,
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granularity: ellipseGeometry._granularity,
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numberOfVerticalLines: ellipseGeometry._numberOfVerticalLines
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};
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let geometry;
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if (extrude) {
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options.extrudedHeight = extrudedHeight;
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options.offsetAttribute = ellipseGeometry._offsetAttribute;
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geometry = computeExtrudedEllipse(options);
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} else {
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geometry = computeEllipse(options);
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if (defined_default(ellipseGeometry._offsetAttribute)) {
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const length = geometry.attributes.position.values.length;
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const offsetValue = ellipseGeometry._offsetAttribute === GeometryOffsetAttribute_default.NONE ? 0 : 1;
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const applyOffset = new Uint8Array(length / 3).fill(offsetValue);
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geometry.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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}
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return new Geometry_default({
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attributes: geometry.attributes,
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indices: geometry.indices,
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primitiveType: PrimitiveType_default.LINES,
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boundingSphere: geometry.boundingSphere,
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offsetAttribute: ellipseGeometry._offsetAttribute
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});
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};
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var EllipseOutlineGeometry_default = EllipseOutlineGeometry;
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export {
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EllipseOutlineGeometry_default
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};
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