From d74b495736f0c04522ec54274b70fed0ded2878d Mon Sep 17 00:00:00 2001
From: zhongrj <646384940@qq.com>
Date: Tue, 27 Jun 2023 11:30:06 +0800
Subject: [PATCH] 任务新增导出
---
public/libs/Cesium/Workers/createPolylineVolumeGeometry.js | 414 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
1 files changed, 414 insertions(+), 0 deletions(-)
diff --git a/public/libs/Cesium/Workers/createPolylineVolumeGeometry.js b/public/libs/Cesium/Workers/createPolylineVolumeGeometry.js
new file mode 100644
index 0000000..228fb46
--- /dev/null
+++ b/public/libs/Cesium/Workers/createPolylineVolumeGeometry.js
@@ -0,0 +1,414 @@
+/**
+ * Cesium - https://github.com/CesiumGS/cesium
+ *
+ * Copyright 2011-2020 Cesium Contributors
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *
+ * Columbus View (Pat. Pend.)
+ *
+ * Portions licensed separately.
+ * See https://github.com/CesiumGS/cesium/blob/master/LICENSE.md for full licensing details.
+ */
+define(['./when-8d13db60', './Check-70bec281', './Math-61ede240', './Cartographic-fe4be337', './Cartesian2-85064f09', './BoundingSphere-775c5788', './Cartesian4-5af5bb24', './RuntimeError-ba10bc3e', './WebGLConstants-4c11ee5f', './ComponentDatatype-5862616f', './GeometryAttribute-ed9d707f', './PrimitiveType-97893bc7', './FeatureDetection-7bd32c34', './Transforms-a1cf7267', './buildModuleUrl-e7952659', './GeometryAttributes-aacecde6', './AttributeCompression-84a90a13', './GeometryPipeline-245a05d7', './EncodedCartesian3-a569cba8', './IndexDatatype-9435b55f', './IntersectionTests-397d9494', './Plane-8390418f', './VertexFormat-fe4db402', './arrayRemoveDuplicates-f0b089b1', './BoundingRectangle-dc808c42', './EllipsoidTangentPlane-e324bfa4', './EllipsoidRhumbLine-f161e674', './earcut-2.2.1-b404d9e6', './PolygonPipeline-fd46002b', './PolylineVolumeGeometryLibrary-5bb7662e', './EllipsoidGeodesic-84507801', './PolylinePipeline-a9f32196'], function (when, Check, _Math, Cartographic, Cartesian2, BoundingSphere, Cartesian4, RuntimeError, WebGLConstants, ComponentDatatype, GeometryAttribute, PrimitiveType, FeatureDetection, Transforms, buildModuleUrl, GeometryAttributes, AttributeCompression, GeometryPipeline, EncodedCartesian3, IndexDatatype, IntersectionTests, Plane, VertexFormat, arrayRemoveDuplicates, BoundingRectangle, EllipsoidTangentPlane, EllipsoidRhumbLine, earcut2_2_1, PolygonPipeline, PolylineVolumeGeometryLibrary, EllipsoidGeodesic, PolylinePipeline) { 'use strict';
+
+ function computeAttributes(result, shape, boundingRectangle, vertexFormat) {
+ var combinedPositions = result.combinedPositions;
+ var combinedLocalPositions = result.combinedLocalPositions;
+ var attributes = new GeometryAttributes.GeometryAttributes();
+ if (vertexFormat.position) {
+ attributes.position = new GeometryAttribute.GeometryAttribute({
+ componentDatatype : ComponentDatatype.ComponentDatatype.DOUBLE,
+ componentsPerAttribute : 3,
+ values : combinedPositions
+ });
+ }
+ var shapeLength = shape.length;
+ var vertexCount = combinedPositions.length / 3;
+ var length = (vertexCount - shapeLength * 2) / (shapeLength * 2);
+ var firstEndIndices = PolygonPipeline.PolygonPipeline.triangulate(shape);
+
+ var indicesCount = (length - 1) * (shapeLength) * 6 + firstEndIndices.length * 2;
+ var indices = IndexDatatype.IndexDatatype.createTypedArray(vertexCount, indicesCount);
+ var i, j;
+ var ll, ul, ur, lr;
+ var offset = shapeLength * 2;
+ var index = 0;
+ for (i = 0; i < length - 1; i++) {
+ for (j = 0; j < shapeLength - 1; j++) {
+ ll = j * 2 + i * shapeLength * 2;
+ lr = ll + offset;
+ ul = ll + 1;
+ ur = ul + offset;
+
+ indices[index++] = ul;
+ indices[index++] = ll;
+ indices[index++] = ur;
+ indices[index++] = ur;
+ indices[index++] = ll;
+ indices[index++] = lr;
+ }
+ ll = shapeLength * 2 - 2 + i * shapeLength * 2;
+ ul = ll + 1;
+ ur = ul + offset;
+ lr = ll + offset;
+
+ indices[index++] = ul;
+ indices[index++] = ll;
+ indices[index++] = ur;
+ indices[index++] = ur;
+ indices[index++] = ll;
+ indices[index++] = lr;
+ }
+
+ if (vertexFormat.st || vertexFormat.tangent || vertexFormat.bitangent) { // st required for tangent/bitangent calculation
+ var st = new Float32Array(vertexCount * 2);
+ var lengthSt = 1 / (length - 1);
+ var heightSt = 1 / (boundingRectangle.height);
+ var heightOffset = boundingRectangle.height / 2;
+ var s, t;
+ var stindex = 0;
+ for (i = 0; i < length; i++) {
+ s = i * lengthSt;
+ t = heightSt * (shape[0].y + heightOffset);
+ st[stindex++] = s;
+ st[stindex++] = t;
+ for (j = 1; j < shapeLength; j++) {
+ t = heightSt * (shape[j].y + heightOffset);
+ st[stindex++] = s;
+ st[stindex++] = t;
+ st[stindex++] = s;
+ st[stindex++] = t;
+ }
+ t = heightSt * (shape[0].y + heightOffset);
+ st[stindex++] = s;
+ st[stindex++] = t;
+ }
+ for (j = 0; j < shapeLength; j++) {
+ s = 0;
+ t = heightSt * (shape[j].y + heightOffset);
+ st[stindex++] = s;
+ st[stindex++] = t;
+ }
+ for (j = 0; j < shapeLength; j++) {
+ s = (length - 1) * lengthSt;
+ t = heightSt * (shape[j].y + heightOffset);
+ st[stindex++] = s;
+ st[stindex++] = t;
+ }
+
+ attributes.st = new GeometryAttribute.GeometryAttribute({
+ componentDatatype : ComponentDatatype.ComponentDatatype.FLOAT,
+ componentsPerAttribute : 2,
+ values : new Float32Array(st)
+ });
+ }
+
+ var endOffset = vertexCount - shapeLength * 2;
+ for (i = 0; i < firstEndIndices.length; i += 3) {
+ var v0 = firstEndIndices[i] + endOffset;
+ var v1 = firstEndIndices[i + 1] + endOffset;
+ var v2 = firstEndIndices[i + 2] + endOffset;
+
+ indices[index++] = v0;
+ indices[index++] = v1;
+ indices[index++] = v2;
+ indices[index++] = v2 + shapeLength;
+ indices[index++] = v1 + shapeLength;
+ indices[index++] = v0 + shapeLength;
+ }
+
+ var geometry = new GeometryAttribute.Geometry({
+ attributes : attributes,
+ indices : indices,
+ boundingSphere : BoundingSphere.BoundingSphere.fromVertices(combinedPositions),
+ primitiveType : PrimitiveType.PrimitiveType.TRIANGLES
+ });
+
+ if (vertexFormat.normal) {
+ geometry = GeometryPipeline.GeometryPipeline.computeNormal(geometry);
+ }
+
+ if (vertexFormat.tangent || vertexFormat.bitangent) {
+ try {
+ geometry = GeometryPipeline.GeometryPipeline.computeTangentAndBitangent(geometry);
+ } catch (e) {
+ buildModuleUrl.oneTimeWarning('polyline-volume-tangent-bitangent', 'Unable to compute tangents and bitangents for polyline volume geometry');
+ //TODO https://github.com/AnalyticalGraphicsInc/cesium/issues/3609
+ }
+
+ if (!vertexFormat.tangent) {
+ geometry.attributes.tangent = undefined;
+ }
+ if (!vertexFormat.bitangent) {
+ geometry.attributes.bitangent = undefined;
+ }
+ if (!vertexFormat.st) {
+ geometry.attributes.st = undefined;
+ }
+ }
+
+ if(when.defined(combinedLocalPositions)) {
+ geometry.attributes.position.values = combinedLocalPositions;
+ geometry.attributes.position.componentDatatype = ComponentDatatype.ComponentDatatype.FLOAT;
+ }
+
+ return geometry;
+ }
+
+ /**
+ * A description of a polyline with a volume (a 2D shape extruded along a polyline).
+ *
+ * @alias PolylineVolumeGeometry
+ * @constructor
+ *
+ * @param {Object} options Object with the following properties:
+ * @param {Cartesian3[]} options.polylinePositions An array of {@link Cartesain3} positions that define the center of the polyline volume.
+ * @param {Cartesian2[]} options.shapePositions An array of {@link Cartesian2} positions that define the shape to be extruded along the polyline
+ * @param {Ellipsoid} [options.ellipsoid=Ellipsoid.WGS84] The ellipsoid to be used as a reference.
+ * @param {Number} [options.granularity=CesiumMath.RADIANS_PER_DEGREE] The distance, in radians, between each latitude and longitude. Determines the number of positions in the buffer.
+ * @param {VertexFormat} [options.vertexFormat=VertexFormat.DEFAULT] The vertex attributes to be computed.
+ * @param {CornerType} [options.cornerType=CornerType.ROUNDED] Determines the style of the corners.
+ *
+ * @see PolylineVolumeGeometry#createGeometry
+ *
+ * @demo {@link https://cesiumjs.org/Cesium/Apps/Sandcastle/index.html?src=Polyline%20Volume.html|Cesium Sandcastle Polyline Volume Demo}
+ *
+ * @example
+ * function computeCircle(radius) {
+ * var positions = [];
+ * for (var i = 0; i < 360; i++) {
+ * var radians = Cesium.Math.toRadians(i);
+ * positions.push(new Cesium.Cartesian2(radius * Math.cos(radians), radius * Math.sin(radians)));
+ * }
+ * return positions;
+ * }
+ *
+ * var volume = new Cesium.PolylineVolumeGeometry({
+ * vertexFormat : Cesium.VertexFormat.POSITION_ONLY,
+ * polylinePositions : Cesium.Cartesian3.fromDegreesArray([
+ * -72.0, 40.0,
+ * -70.0, 35.0
+ * ]),
+ * shapePositions : computeCircle(100000.0)
+ * });
+ */
+ function PolylineVolumeGeometry(options) {
+ options = when.defaultValue(options, when.defaultValue.EMPTY_OBJECT);
+ var positions = options.polylinePositions;
+ var shape = options.shapePositions;
+
+ //>>includeStart('debug', pragmas.debug);
+ if (!when.defined(positions)) {
+ throw new Check.DeveloperError('options.polylinePositions is required.');
+ }
+ if (!when.defined(shape)) {
+ throw new Check.DeveloperError('options.shapePositions is required.');
+ }
+ //>>includeEnd('debug');
+
+ this._positions = positions;
+ this._shape = shape;
+ this._ellipsoid = Cartesian2.Ellipsoid.clone(when.defaultValue(options.ellipsoid, Cartesian2.Ellipsoid.WGS84));
+ this._cornerType = when.defaultValue(options.cornerType, PolylineVolumeGeometryLibrary.CornerType.ROUNDED);
+ this._vertexFormat = VertexFormat.VertexFormat.clone(when.defaultValue(options.vertexFormat, VertexFormat.VertexFormat.DEFAULT));
+ this._granularity = when.defaultValue(options.granularity, _Math.CesiumMath.RADIANS_PER_DEGREE);
+ this._workerName = 'createPolylineVolumeGeometry';
+ this.enuCenter = when.defaultValue(options.enuCenter, Cartographic.Cartesian3.ZERO);
+ var numComponents = 1 + positions.length * Cartographic.Cartesian3.packedLength;
+ numComponents += 1 + shape.length * Cartesian2.Cartesian2.packedLength + Cartographic.Cartesian3.packedLength;
+
+ /**
+ * The number of elements used to pack the object into an array.
+ * @type {Number}
+ */
+ this.packedLength = numComponents + Cartesian2.Ellipsoid.packedLength + VertexFormat.VertexFormat.packedLength + 2;
+ }
+
+ /**
+ * Stores the provided instance into the provided array.
+ *
+ * @param {PolylineVolumeGeometry} value The value to pack.
+ * @param {Number[]} array The array to pack into.
+ * @param {Number} [startingIndex=0] The index into the array at which to start packing the elements.
+ *
+ * @returns {Number[]} The array that was packed into
+ */
+ PolylineVolumeGeometry.pack = function(value, array, startingIndex) {
+ //>>includeStart('debug', pragmas.debug);
+ if (!when.defined(value)) {
+ throw new Check.DeveloperError('value is required');
+ }
+ if (!when.defined(array)) {
+ throw new Check.DeveloperError('array is required');
+ }
+ //>>includeEnd('debug');
+
+ startingIndex = when.defaultValue(startingIndex, 0);
+
+ var i;
+
+ var positions = value._positions;
+ var length = positions.length;
+ array[startingIndex++] = length;
+
+ for (i = 0; i < length; ++i, startingIndex += Cartographic.Cartesian3.packedLength) {
+ Cartographic.Cartesian3.pack(positions[i], array, startingIndex);
+ }
+
+ var shape = value._shape;
+ length = shape.length;
+ array[startingIndex++] = length;
+
+ for (i = 0; i < length; ++i, startingIndex += Cartesian2.Cartesian2.packedLength) {
+ Cartesian2.Cartesian2.pack(shape[i], array, startingIndex);
+ }
+
+ Cartesian2.Ellipsoid.pack(value._ellipsoid, array, startingIndex);
+ startingIndex += Cartesian2.Ellipsoid.packedLength;
+
+ VertexFormat.VertexFormat.pack(value._vertexFormat, array, startingIndex);
+ startingIndex += VertexFormat.VertexFormat.packedLength;
+
+ array[startingIndex++] = value._cornerType;
+ array[startingIndex++] = value._granularity;
+ Cartographic.Cartesian3.pack(value.enuCenter, array, startingIndex);
+ return array;
+ };
+
+ var scratchEllipsoid = Cartesian2.Ellipsoid.clone(Cartesian2.Ellipsoid.UNIT_SPHERE);
+ var scratchVertexFormat = new VertexFormat.VertexFormat();
+ var scratchOptions = {
+ polylinePositions : undefined,
+ shapePositions : undefined,
+ ellipsoid : scratchEllipsoid,
+ vertexFormat : scratchVertexFormat,
+ cornerType : undefined,
+ granularity : undefined,
+ enuCenter : undefined
+ };
+
+ /**
+ * Retrieves an instance from a packed array.
+ *
+ * @param {Number[]} array The packed array.
+ * @param {Number} [startingIndex=0] The starting index of the element to be unpacked.
+ * @param {PolylineVolumeGeometry} [result] The object into which to store the result.
+ * @returns {PolylineVolumeGeometry} The modified result parameter or a new PolylineVolumeGeometry instance if one was not provided.
+ */
+ PolylineVolumeGeometry.unpack = function(array, startingIndex, result) {
+ //>>includeStart('debug', pragmas.debug);
+ if (!when.defined(array)) {
+ throw new Check.DeveloperError('array is required');
+ }
+ //>>includeEnd('debug');
+
+ startingIndex = when.defaultValue(startingIndex, 0);
+
+ var i;
+
+ var length = array[startingIndex++];
+ var positions = new Array(length);
+
+ for (i = 0; i < length; ++i, startingIndex += Cartographic.Cartesian3.packedLength) {
+ positions[i] = Cartographic.Cartesian3.unpack(array, startingIndex);
+ }
+
+ length = array[startingIndex++];
+ var shape = new Array(length);
+
+ for (i = 0; i < length; ++i, startingIndex += Cartesian2.Cartesian2.packedLength) {
+ shape[i] = Cartesian2.Cartesian2.unpack(array, startingIndex);
+ }
+
+ var ellipsoid = Cartesian2.Ellipsoid.unpack(array, startingIndex, scratchEllipsoid);
+ startingIndex += Cartesian2.Ellipsoid.packedLength;
+
+ var vertexFormat = VertexFormat.VertexFormat.unpack(array, startingIndex, scratchVertexFormat);
+ startingIndex += VertexFormat.VertexFormat.packedLength;
+
+ var cornerType = array[startingIndex++];
+ var granularity = array[startingIndex++];
+ var enuCenter;
+ enuCenter = Cartographic.Cartesian3.unpack(array, startingIndex);
+ if (!when.defined(result)) {
+ scratchOptions.polylinePositions = positions;
+ scratchOptions.shapePositions = shape;
+ scratchOptions.cornerType = cornerType;
+ scratchOptions.granularity = granularity;
+ scratchOptions.enuCenter = enuCenter;
+ return new PolylineVolumeGeometry(scratchOptions);
+ }
+
+ result._positions = positions;
+ result._shape = shape;
+ result._ellipsoid = Cartesian2.Ellipsoid.clone(ellipsoid, result._ellipsoid);
+ result._vertexFormat = VertexFormat.VertexFormat.clone(vertexFormat, result._vertexFormat);
+ result._cornerType = cornerType;
+ result._granularity = granularity;
+ result.enuCenter = enuCenter;
+
+ return result;
+ };
+
+ var brScratch = new BoundingRectangle.BoundingRectangle();
+
+ /**
+ * Computes the geometric representation of a polyline with a volume, including its vertices, indices, and a bounding sphere.
+ *
+ * @param {PolylineVolumeGeometry} polylineVolumeGeometry A description of the polyline volume.
+ * @returns {Geometry|undefined} The computed vertices and indices.
+ */
+ PolylineVolumeGeometry.createGeometry = function(polylineVolumeGeometry) {
+ var positions = polylineVolumeGeometry._positions;
+ var cleanPositions = arrayRemoveDuplicates.arrayRemoveDuplicates(positions, Cartographic.Cartesian3.equalsEpsilon);
+ var len = cleanPositions.length;
+ var copyPositions = new Array(len);
+ for(var i = 0;i < len;i++){
+ copyPositions[i] = Cartographic.Cartesian3.clone(cleanPositions[i]);
+ }
+ var shape2D = polylineVolumeGeometry._shape;
+ shape2D = PolylineVolumeGeometryLibrary.PolylineVolumeGeometryLibrary.removeDuplicatesFromShape(shape2D);
+
+ if (cleanPositions.length < 2 || shape2D.length < 3) {
+ return undefined;
+ }
+
+ if (PolygonPipeline.PolygonPipeline.computeWindingOrder2D(shape2D) === PolygonPipeline.WindingOrder.CLOCKWISE) {
+ shape2D.reverse();
+ }
+ var boundingRectangle = BoundingRectangle.BoundingRectangle.fromPoints(shape2D, brScratch);
+
+ var res = {};
+ res.combinedPositions = PolylineVolumeGeometryLibrary.PolylineVolumeGeometryLibrary.computePositions(copyPositions, shape2D, boundingRectangle, polylineVolumeGeometry, true);
+ if(!Cartographic.Cartesian3.equals(polylineVolumeGeometry.enuCenter, Cartographic.Cartesian3.ZERO)) {
+ var cleanPositionsClone = new Array(len);
+ for(var i = 0;i < len;i++){
+ cleanPositionsClone[i] = Cartographic.Cartesian3.clone(cleanPositions[i]);
+ }
+ res.combinedLocalPositions = PolylineVolumeGeometryLibrary.PolylineVolumeGeometryLibrary.computeLocalPositions(cleanPositionsClone, shape2D, boundingRectangle, polylineVolumeGeometry, true, polylineVolumeGeometry.enuCenter);
+ }
+ return computeAttributes(res, shape2D, boundingRectangle, polylineVolumeGeometry._vertexFormat);
+ };
+
+ function createPolylineVolumeGeometry(polylineVolumeGeometry, offset) {
+ if (when.defined(offset)) {
+ polylineVolumeGeometry = PolylineVolumeGeometry.unpack(polylineVolumeGeometry, offset);
+ }
+ polylineVolumeGeometry._ellipsoid = Cartesian2.Ellipsoid.clone(polylineVolumeGeometry._ellipsoid);
+ return PolylineVolumeGeometry.createGeometry(polylineVolumeGeometry);
+ }
+
+ return createPolylineVolumeGeometry;
+
+});
--
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