1210 lines
59 KiB
JavaScript
1210 lines
59 KiB
JavaScript
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/**
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* Cesium - https://github.com/CesiumGS/cesium
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*
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* Copyright 2011-2020 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/master/LICENSE.md for full licensing details.
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*/
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define(['./when-c2e8ef35', './Check-c4f3a3fc', './Math-a06249ed', './Cartesian2-a4e73c05', './Transforms-533d1994', './RuntimeError-6122571f', './WebGLConstants-4ae0db90', './ComponentDatatype-762ab5b7', './GeometryAttribute-47fb6f1a', './GeometryAttributes-57608efc', './AttributeCompression-6b12d004', './GeometryPipeline-7db33fea', './EncodedCartesian3-0e715517', './IndexDatatype-755cb3fd', './IntersectionTests-11682642', './Plane-beebe18b', './GeometryOffsetAttribute-bc682dfe', './VertexFormat-5ae20b72', './GeometryInstance-81f6321c', './EllipsoidRhumbLine-33694923', './PolygonPipeline-99528590', './RectangleGeometryLibrary-d09e6dbe'], function (when, Check, _Math, Cartesian2, Transforms, RuntimeError, WebGLConstants, ComponentDatatype, GeometryAttribute, GeometryAttributes, AttributeCompression, GeometryPipeline, EncodedCartesian3, IndexDatatype, IntersectionTests, Plane, GeometryOffsetAttribute, VertexFormat, GeometryInstance, EllipsoidRhumbLine, PolygonPipeline, RectangleGeometryLibrary) { 'use strict';
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var positionScratch = new Cartesian2.Cartesian3();
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var normalScratch = new Cartesian2.Cartesian3();
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var tangentScratch = new Cartesian2.Cartesian3();
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var bitangentScratch = new Cartesian2.Cartesian3();
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var rectangleScratch = new Cartesian2.Rectangle();
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var stScratch = new Cartesian2.Cartesian2();
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var bottomBoundingSphere = new Transforms.BoundingSphere();
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var topBoundingSphere = new Transforms.BoundingSphere();
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function createAttributes(vertexFormat, attributes) {
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var geo = new GeometryAttribute.Geometry({
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attributes : new GeometryAttributes.GeometryAttributes(),
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primitiveType : GeometryAttribute.PrimitiveType.TRIANGLES
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});
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geo.attributes.position = new GeometryAttribute.GeometryAttribute({
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componentDatatype : ComponentDatatype.ComponentDatatype.DOUBLE,
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componentsPerAttribute : 3,
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values : attributes.positions
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});
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if (vertexFormat.normal) {
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geo.attributes.normal = new GeometryAttribute.GeometryAttribute({
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componentDatatype : ComponentDatatype.ComponentDatatype.FLOAT,
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componentsPerAttribute : 3,
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values : attributes.normals
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});
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}
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if (vertexFormat.tangent) {
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geo.attributes.tangent = new GeometryAttribute.GeometryAttribute({
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componentDatatype : ComponentDatatype.ComponentDatatype.FLOAT,
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componentsPerAttribute : 3,
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values : attributes.tangents
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});
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}
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if (vertexFormat.bitangent) {
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geo.attributes.bitangent = new GeometryAttribute.GeometryAttribute({
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componentDatatype : ComponentDatatype.ComponentDatatype.FLOAT,
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componentsPerAttribute : 3,
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values : attributes.bitangents
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});
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}
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return geo;
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}
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function calculateAttributes(positions, vertexFormat, ellipsoid, tangentRotationMatrix) {
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var length = positions.length;
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var normals = (vertexFormat.normal) ? new Float32Array(length) : undefined;
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var tangents = (vertexFormat.tangent) ? new Float32Array(length) : undefined;
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var bitangents = (vertexFormat.bitangent) ? new Float32Array(length) : undefined;
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var attrIndex = 0;
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var bitangent = bitangentScratch;
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var tangent = tangentScratch;
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var normal = normalScratch;
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if (vertexFormat.normal || vertexFormat.tangent || vertexFormat.bitangent) {
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for (var i = 0; i < length; i += 3) {
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var p = Cartesian2.Cartesian3.fromArray(positions, i, positionScratch);
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var attrIndex1 = attrIndex + 1;
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var attrIndex2 = attrIndex + 2;
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normal = ellipsoid.geodeticSurfaceNormal(p, normal);
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if (vertexFormat.tangent || vertexFormat.bitangent) {
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Cartesian2.Cartesian3.cross(Cartesian2.Cartesian3.UNIT_Z, normal, tangent);
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Transforms.Matrix3.multiplyByVector(tangentRotationMatrix, tangent, tangent);
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Cartesian2.Cartesian3.normalize(tangent, tangent);
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if (vertexFormat.bitangent) {
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Cartesian2.Cartesian3.normalize(Cartesian2.Cartesian3.cross(normal, tangent, bitangent), bitangent);
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}
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}
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if (vertexFormat.normal) {
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normals[attrIndex] = normal.x;
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normals[attrIndex1] = normal.y;
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normals[attrIndex2] = normal.z;
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}
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if (vertexFormat.tangent) {
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tangents[attrIndex] = tangent.x;
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tangents[attrIndex1] = tangent.y;
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tangents[attrIndex2] = tangent.z;
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}
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if (vertexFormat.bitangent) {
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bitangents[attrIndex] = bitangent.x;
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bitangents[attrIndex1] = bitangent.y;
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bitangents[attrIndex2] = bitangent.z;
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}
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attrIndex += 3;
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}
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}
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return createAttributes(vertexFormat, {
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positions : positions,
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normals : normals,
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tangents : tangents,
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bitangents : bitangents
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});
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}
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var v1Scratch = new Cartesian2.Cartesian3();
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var v2Scratch = new Cartesian2.Cartesian3();
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function calculateAttributesWall(positions, vertexFormat, ellipsoid) {
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var length = positions.length;
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var normals = (vertexFormat.normal) ? new Float32Array(length) : undefined;
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var tangents = (vertexFormat.tangent) ? new Float32Array(length) : undefined;
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var bitangents = (vertexFormat.bitangent) ? new Float32Array(length) : undefined;
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var normalIndex = 0;
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var tangentIndex = 0;
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var bitangentIndex = 0;
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var recomputeNormal = true;
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var bitangent = bitangentScratch;
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var tangent = tangentScratch;
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var normal = normalScratch;
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if (vertexFormat.normal || vertexFormat.tangent || vertexFormat.bitangent) {
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for (var i = 0; i < length; i += 6) {
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var p = Cartesian2.Cartesian3.fromArray(positions, i, positionScratch);
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var p1 = Cartesian2.Cartesian3.fromArray(positions, (i + 6) % length, v1Scratch);
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if (recomputeNormal) {
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var p2 = Cartesian2.Cartesian3.fromArray(positions, (i + 3) % length, v2Scratch);
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Cartesian2.Cartesian3.subtract(p1, p, p1);
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Cartesian2.Cartesian3.subtract(p2, p, p2);
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normal = Cartesian2.Cartesian3.normalize(Cartesian2.Cartesian3.cross(p2, p1, normal), normal);
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recomputeNormal = false;
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}
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if (Cartesian2.Cartesian3.equalsEpsilon(p1, p, _Math.CesiumMath.EPSILON10)) { // if we've reached a corner
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recomputeNormal = true;
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}
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if (vertexFormat.tangent || vertexFormat.bitangent) {
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bitangent = ellipsoid.geodeticSurfaceNormal(p, bitangent);
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if (vertexFormat.tangent) {
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tangent = Cartesian2.Cartesian3.normalize(Cartesian2.Cartesian3.cross(bitangent, normal, tangent), tangent);
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}
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}
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if (vertexFormat.normal) {
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normals[normalIndex++] = normal.x;
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normals[normalIndex++] = normal.y;
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normals[normalIndex++] = normal.z;
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normals[normalIndex++] = normal.x;
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normals[normalIndex++] = normal.y;
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normals[normalIndex++] = normal.z;
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}
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if (vertexFormat.tangent) {
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tangents[tangentIndex++] = tangent.x;
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tangents[tangentIndex++] = tangent.y;
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tangents[tangentIndex++] = tangent.z;
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tangents[tangentIndex++] = tangent.x;
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tangents[tangentIndex++] = tangent.y;
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tangents[tangentIndex++] = tangent.z;
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}
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if (vertexFormat.bitangent) {
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bitangents[bitangentIndex++] = bitangent.x;
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bitangents[bitangentIndex++] = bitangent.y;
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bitangents[bitangentIndex++] = bitangent.z;
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bitangents[bitangentIndex++] = bitangent.x;
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bitangents[bitangentIndex++] = bitangent.y;
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bitangents[bitangentIndex++] = bitangent.z;
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}
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}
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}
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return createAttributes(vertexFormat, {
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positions : positions,
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normals : normals,
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tangents : tangents,
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bitangents : bitangents
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});
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}
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function constructRectangle(rectangleGeometry, computedOptions) {
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var vertexFormat = rectangleGeometry._vertexFormat;
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var ellipsoid = rectangleGeometry._ellipsoid;
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var height = computedOptions.height;
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var width = computedOptions.width;
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var northCap = computedOptions.northCap;
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var southCap = computedOptions.southCap;
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var rowStart = 0;
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var rowEnd = height;
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var rowHeight = height;
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var size = 0;
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if (northCap) {
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rowStart = 1;
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rowHeight -= 1;
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size += 1;
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}
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if (southCap) {
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rowEnd -= 1;
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rowHeight -= 1;
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size += 1;
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}
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size += (width * rowHeight);
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var positions = (vertexFormat.position) ? new Float64Array(size * 3) : undefined;
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var textureCoordinates = (vertexFormat.st) ? new Float32Array(size * 2) : undefined;
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var posIndex = 0;
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var stIndex = 0;
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var position = positionScratch;
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var st = stScratch;
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var minX = Number.MAX_VALUE;
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var minY = Number.MAX_VALUE;
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var maxX = -Number.MAX_VALUE;
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var maxY = -Number.MAX_VALUE;
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for (var row = rowStart; row < rowEnd; ++row) {
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for (var col = 0; col < width; ++col) {
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RectangleGeometryLibrary.RectangleGeometryLibrary.computePosition(computedOptions, ellipsoid, vertexFormat.st, row, col, position, st);
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positions[posIndex++] = position.x;
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positions[posIndex++] = position.y;
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positions[posIndex++] = position.z;
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if (vertexFormat.st) {
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textureCoordinates[stIndex++] = st.x;
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textureCoordinates[stIndex++] = st.y;
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minX = Math.min(minX, st.x);
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minY = Math.min(minY, st.y);
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maxX = Math.max(maxX, st.x);
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maxY = Math.max(maxY, st.y);
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}
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}
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}
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if (northCap) {
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RectangleGeometryLibrary.RectangleGeometryLibrary.computePosition(computedOptions, ellipsoid, vertexFormat.st, 0, 0, position, st);
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positions[posIndex++] = position.x;
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positions[posIndex++] = position.y;
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positions[posIndex++] = position.z;
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if (vertexFormat.st) {
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textureCoordinates[stIndex++] = st.x;
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textureCoordinates[stIndex++] = st.y;
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minX = st.x;
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minY = st.y;
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maxX = st.x;
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maxY = st.y;
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}
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}
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if (southCap) {
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RectangleGeometryLibrary.RectangleGeometryLibrary.computePosition(computedOptions, ellipsoid, vertexFormat.st, height - 1, 0, position, st);
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positions[posIndex++] = position.x;
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positions[posIndex++] = position.y;
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positions[posIndex] = position.z;
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if (vertexFormat.st) {
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textureCoordinates[stIndex++] = st.x;
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textureCoordinates[stIndex] = st.y;
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minX = Math.min(minX, st.x);
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minY = Math.min(minY, st.y);
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maxX = Math.max(maxX, st.x);
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maxY = Math.max(maxY, st.y);
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}
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}
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if (vertexFormat.st && (minX < 0.0 || minY < 0.0 || maxX > 1.0 || maxY > 1.0)) {
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for (var k = 0; k < textureCoordinates.length; k += 2) {
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textureCoordinates[k] = (textureCoordinates[k] - minX) / (maxX - minX);
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textureCoordinates[k + 1] = (textureCoordinates[k + 1] - minY) / (maxY - minY);
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}
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}
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var geo = calculateAttributes(positions, vertexFormat, ellipsoid, computedOptions.tangentRotationMatrix);
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var indicesSize = 6 * (width - 1) * (rowHeight - 1);
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if (northCap) {
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indicesSize += 3 * (width - 1);
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}
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if (southCap) {
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indicesSize += 3 * (width - 1);
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}
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var indices = IndexDatatype.IndexDatatype.createTypedArray(size, indicesSize);
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var index = 0;
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var indicesIndex = 0;
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var i;
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for (i = 0; i < rowHeight - 1; ++i) {
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for (var j = 0; j < width - 1; ++j) {
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var upperLeft = index;
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var lowerLeft = upperLeft + width;
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var lowerRight = lowerLeft + 1;
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var upperRight = upperLeft + 1;
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indices[indicesIndex++] = upperLeft;
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indices[indicesIndex++] = lowerLeft;
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indices[indicesIndex++] = upperRight;
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indices[indicesIndex++] = upperRight;
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indices[indicesIndex++] = lowerLeft;
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indices[indicesIndex++] = lowerRight;
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++index;
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}
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++index;
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}
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if (northCap || southCap) {
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var northIndex = size - 1;
|
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var southIndex = size - 1;
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if (northCap && southCap) {
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northIndex = size - 2;
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}
|
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var p1;
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var p2;
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index = 0;
|
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if (northCap) {
|
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for (i = 0; i < width - 1; i++) {
|
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p1 = index;
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p2 = p1 + 1;
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||
|
|
indices[indicesIndex++] = northIndex;
|
||
|
|
indices[indicesIndex++] = p1;
|
||
|
|
indices[indicesIndex++] = p2;
|
||
|
|
++index;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
if (southCap) {
|
||
|
|
index = (rowHeight - 1) * (width);
|
||
|
|
for (i = 0; i < width - 1; i++) {
|
||
|
|
p1 = index;
|
||
|
|
p2 = p1 + 1;
|
||
|
|
indices[indicesIndex++] = p1;
|
||
|
|
indices[indicesIndex++] = southIndex;
|
||
|
|
indices[indicesIndex++] = p2;
|
||
|
|
++index;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
geo.indices = indices;
|
||
|
|
if (vertexFormat.st) {
|
||
|
|
geo.attributes.st = new GeometryAttribute.GeometryAttribute({
|
||
|
|
componentDatatype : ComponentDatatype.ComponentDatatype.FLOAT,
|
||
|
|
componentsPerAttribute : 2,
|
||
|
|
values : textureCoordinates
|
||
|
|
});
|
||
|
|
}
|
||
|
|
|
||
|
|
return geo;
|
||
|
|
}
|
||
|
|
|
||
|
|
function addWallPositions(wallPositions, posIndex, i, topPositions, bottomPositions) {
|
||
|
|
wallPositions[posIndex++] = topPositions[i];
|
||
|
|
wallPositions[posIndex++] = topPositions[i + 1];
|
||
|
|
wallPositions[posIndex++] = topPositions[i + 2];
|
||
|
|
wallPositions[posIndex++] = bottomPositions[i];
|
||
|
|
wallPositions[posIndex++] = bottomPositions[i + 1];
|
||
|
|
wallPositions[posIndex] = bottomPositions[i + 2];
|
||
|
|
return wallPositions;
|
||
|
|
}
|
||
|
|
|
||
|
|
function addWallTextureCoordinates(wallTextures, stIndex, i, st) {
|
||
|
|
wallTextures[stIndex++] = st[i];
|
||
|
|
wallTextures[stIndex++] = st[i + 1];
|
||
|
|
wallTextures[stIndex++] = st[i];
|
||
|
|
wallTextures[stIndex] = st[i + 1];
|
||
|
|
return wallTextures;
|
||
|
|
}
|
||
|
|
|
||
|
|
var scratchVertexFormat = new VertexFormat.VertexFormat();
|
||
|
|
|
||
|
|
function constructExtrudedRectangle(rectangleGeometry, computedOptions) {
|
||
|
|
var shadowVolume = rectangleGeometry._shadowVolume;
|
||
|
|
var offsetAttributeValue = rectangleGeometry._offsetAttribute;
|
||
|
|
var vertexFormat = rectangleGeometry._vertexFormat;
|
||
|
|
var minHeight = rectangleGeometry._extrudedHeight;
|
||
|
|
var maxHeight = rectangleGeometry._surfaceHeight;
|
||
|
|
var ellipsoid = rectangleGeometry._ellipsoid;
|
||
|
|
|
||
|
|
var height = computedOptions.height;
|
||
|
|
var width = computedOptions.width;
|
||
|
|
|
||
|
|
var i;
|
||
|
|
|
||
|
|
if (shadowVolume) {
|
||
|
|
var newVertexFormat = VertexFormat.VertexFormat.clone(vertexFormat, scratchVertexFormat);
|
||
|
|
newVertexFormat.normal = true;
|
||
|
|
rectangleGeometry._vertexFormat = newVertexFormat;
|
||
|
|
}
|
||
|
|
|
||
|
|
var topBottomGeo = constructRectangle(rectangleGeometry, computedOptions);
|
||
|
|
|
||
|
|
if (shadowVolume) {
|
||
|
|
rectangleGeometry._vertexFormat = vertexFormat;
|
||
|
|
}
|
||
|
|
|
||
|
|
var topPositions = PolygonPipeline.PolygonPipeline.scaleToGeodeticHeight(topBottomGeo.attributes.position.values, maxHeight, ellipsoid, false);
|
||
|
|
topPositions = new Float64Array(topPositions);
|
||
|
|
var length = topPositions.length;
|
||
|
|
var newLength = length * 2;
|
||
|
|
var positions = new Float64Array(newLength);
|
||
|
|
positions.set(topPositions);
|
||
|
|
var bottomPositions = PolygonPipeline.PolygonPipeline.scaleToGeodeticHeight(topBottomGeo.attributes.position.values, minHeight, ellipsoid);
|
||
|
|
positions.set(bottomPositions, length);
|
||
|
|
topBottomGeo.attributes.position.values = positions;
|
||
|
|
|
||
|
|
var normals = (vertexFormat.normal) ? new Float32Array(newLength) : undefined;
|
||
|
|
var tangents = (vertexFormat.tangent) ? new Float32Array(newLength) : undefined;
|
||
|
|
var bitangents = (vertexFormat.bitangent) ? new Float32Array(newLength) : undefined;
|
||
|
|
var textures = (vertexFormat.st) ? new Float32Array(newLength / 3 * 2) : undefined;
|
||
|
|
var topSt;
|
||
|
|
var topNormals;
|
||
|
|
if (vertexFormat.normal) {
|
||
|
|
topNormals = topBottomGeo.attributes.normal.values;
|
||
|
|
normals.set(topNormals);
|
||
|
|
for (i = 0; i < length; i++) {
|
||
|
|
topNormals[i] = -topNormals[i];
|
||
|
|
}
|
||
|
|
normals.set(topNormals, length);
|
||
|
|
topBottomGeo.attributes.normal.values = normals;
|
||
|
|
}
|
||
|
|
if (shadowVolume) {
|
||
|
|
topNormals = topBottomGeo.attributes.normal.values;
|
||
|
|
if (!vertexFormat.normal) {
|
||
|
|
topBottomGeo.attributes.normal = undefined;
|
||
|
|
}
|
||
|
|
var extrudeNormals = new Float32Array(newLength);
|
||
|
|
for (i = 0; i < length; i++) {
|
||
|
|
topNormals[i] = -topNormals[i];
|
||
|
|
}
|
||
|
|
extrudeNormals.set(topNormals, length); //only get normals for bottom layer that's going to be pushed down
|
||
|
|
topBottomGeo.attributes.extrudeDirection = new GeometryAttribute.GeometryAttribute({
|
||
|
|
componentDatatype : ComponentDatatype.ComponentDatatype.FLOAT,
|
||
|
|
componentsPerAttribute : 3,
|
||
|
|
values : extrudeNormals
|
||
|
|
});
|
||
|
|
}
|
||
|
|
|
||
|
|
var offsetValue;
|
||
|
|
var hasOffsets = when.defined(offsetAttributeValue);
|
||
|
|
if (hasOffsets) {
|
||
|
|
var size = length / 3 * 2;
|
||
|
|
var offsetAttribute = new Uint8Array(size);
|
||
|
|
if (offsetAttributeValue === GeometryOffsetAttribute.GeometryOffsetAttribute.TOP) {
|
||
|
|
offsetAttribute = GeometryOffsetAttribute.arrayFill(offsetAttribute, 1, 0, size / 2);
|
||
|
|
} else {
|
||
|
|
offsetValue = offsetAttributeValue === GeometryOffsetAttribute.GeometryOffsetAttribute.NONE ? 0 : 1;
|
||
|
|
offsetAttribute = GeometryOffsetAttribute.arrayFill(offsetAttribute, offsetValue);
|
||
|
|
}
|
||
|
|
|
||
|
|
topBottomGeo.attributes.applyOffset = new GeometryAttribute.GeometryAttribute({
|
||
|
|
componentDatatype : ComponentDatatype.ComponentDatatype.UNSIGNED_BYTE,
|
||
|
|
componentsPerAttribute : 1,
|
||
|
|
values : offsetAttribute
|
||
|
|
});
|
||
|
|
}
|
||
|
|
|
||
|
|
if (vertexFormat.tangent) {
|
||
|
|
var topTangents = topBottomGeo.attributes.tangent.values;
|
||
|
|
tangents.set(topTangents);
|
||
|
|
for (i = 0; i < length; i++) {
|
||
|
|
topTangents[i] = -topTangents[i];
|
||
|
|
}
|
||
|
|
tangents.set(topTangents, length);
|
||
|
|
topBottomGeo.attributes.tangent.values = tangents;
|
||
|
|
}
|
||
|
|
if (vertexFormat.bitangent) {
|
||
|
|
var topBitangents = topBottomGeo.attributes.bitangent.values;
|
||
|
|
bitangents.set(topBitangents);
|
||
|
|
bitangents.set(topBitangents, length);
|
||
|
|
topBottomGeo.attributes.bitangent.values = bitangents;
|
||
|
|
}
|
||
|
|
if (vertexFormat.st) {
|
||
|
|
topSt = topBottomGeo.attributes.st.values;
|
||
|
|
textures.set(topSt);
|
||
|
|
textures.set(topSt, length / 3 * 2);
|
||
|
|
topBottomGeo.attributes.st.values = textures;
|
||
|
|
}
|
||
|
|
|
||
|
|
var indices = topBottomGeo.indices;
|
||
|
|
var indicesLength = indices.length;
|
||
|
|
var posLength = length / 3;
|
||
|
|
var newIndices = IndexDatatype.IndexDatatype.createTypedArray(newLength / 3, indicesLength * 2);
|
||
|
|
newIndices.set(indices);
|
||
|
|
for (i = 0; i < indicesLength; i += 3) {
|
||
|
|
newIndices[i + indicesLength] = indices[i + 2] + posLength;
|
||
|
|
newIndices[i + 1 + indicesLength] = indices[i + 1] + posLength;
|
||
|
|
newIndices[i + 2 + indicesLength] = indices[i] + posLength;
|
||
|
|
}
|
||
|
|
topBottomGeo.indices = newIndices;
|
||
|
|
|
||
|
|
var northCap = computedOptions.northCap;
|
||
|
|
var southCap = computedOptions.southCap;
|
||
|
|
|
||
|
|
var rowHeight = height;
|
||
|
|
var widthMultiplier = 2;
|
||
|
|
var perimeterPositions = 0;
|
||
|
|
var corners = 4;
|
||
|
|
var dupliateCorners = 4;
|
||
|
|
if (northCap) {
|
||
|
|
widthMultiplier -= 1;
|
||
|
|
rowHeight -= 1;
|
||
|
|
perimeterPositions += 1;
|
||
|
|
corners -= 2;
|
||
|
|
dupliateCorners -= 1;
|
||
|
|
}
|
||
|
|
if (southCap) {
|
||
|
|
widthMultiplier -= 1;
|
||
|
|
rowHeight -= 1;
|
||
|
|
perimeterPositions += 1;
|
||
|
|
corners -= 2;
|
||
|
|
dupliateCorners -= 1;
|
||
|
|
}
|
||
|
|
perimeterPositions += (widthMultiplier * width + 2 * rowHeight - corners);
|
||
|
|
|
||
|
|
var wallCount = (perimeterPositions + dupliateCorners) * 2;
|
||
|
|
|
||
|
|
var wallPositions = new Float64Array(wallCount * 3);
|
||
|
|
var wallExtrudeNormals = shadowVolume ? new Float32Array(wallCount * 3) : undefined;
|
||
|
|
var wallOffsetAttribute = hasOffsets ? new Uint8Array(wallCount) : undefined;
|
||
|
|
var wallTextures = (vertexFormat.st) ? new Float32Array(wallCount * 2) : undefined;
|
||
|
|
|
||
|
|
var computeTopOffsets = offsetAttributeValue === GeometryOffsetAttribute.GeometryOffsetAttribute.TOP;
|
||
|
|
if (hasOffsets && !computeTopOffsets) {
|
||
|
|
offsetValue = offsetAttributeValue === GeometryOffsetAttribute.GeometryOffsetAttribute.ALL ? 1 : 0;
|
||
|
|
wallOffsetAttribute = GeometryOffsetAttribute.arrayFill(wallOffsetAttribute, offsetValue);
|
||
|
|
}
|
||
|
|
|
||
|
|
var posIndex = 0;
|
||
|
|
var stIndex = 0;
|
||
|
|
var extrudeNormalIndex = 0;
|
||
|
|
var wallOffsetIndex = 0;
|
||
|
|
var area = width * rowHeight;
|
||
|
|
var threeI;
|
||
|
|
for (i = 0; i < area; i += width) {
|
||
|
|
threeI = i * 3;
|
||
|
|
wallPositions = addWallPositions(wallPositions, posIndex, threeI, topPositions, bottomPositions);
|
||
|
|
posIndex += 6;
|
||
|
|
if (vertexFormat.st) {
|
||
|
|
wallTextures = addWallTextureCoordinates(wallTextures, stIndex, i * 2, topSt);
|
||
|
|
stIndex += 4;
|
||
|
|
}
|
||
|
|
if (shadowVolume) {
|
||
|
|
extrudeNormalIndex += 3;
|
||
|
|
wallExtrudeNormals[extrudeNormalIndex++] = topNormals[threeI];
|
||
|
|
wallExtrudeNormals[extrudeNormalIndex++] = topNormals[threeI + 1];
|
||
|
|
wallExtrudeNormals[extrudeNormalIndex++] = topNormals[threeI + 2];
|
||
|
|
}
|
||
|
|
if (computeTopOffsets) {
|
||
|
|
wallOffsetAttribute[wallOffsetIndex++] = 1;
|
||
|
|
wallOffsetIndex += 1;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
if (!southCap) {
|
||
|
|
for (i = area - width; i < area; i++) {
|
||
|
|
threeI = i * 3;
|
||
|
|
wallPositions = addWallPositions(wallPositions, posIndex, threeI, topPositions, bottomPositions);
|
||
|
|
posIndex += 6;
|
||
|
|
if (vertexFormat.st) {
|
||
|
|
wallTextures = addWallTextureCoordinates(wallTextures, stIndex, i * 2, topSt);
|
||
|
|
stIndex += 4;
|
||
|
|
}
|
||
|
|
if (shadowVolume) {
|
||
|
|
extrudeNormalIndex += 3;
|
||
|
|
wallExtrudeNormals[extrudeNormalIndex++] = topNormals[threeI];
|
||
|
|
wallExtrudeNormals[extrudeNormalIndex++] = topNormals[threeI + 1];
|
||
|
|
wallExtrudeNormals[extrudeNormalIndex++] = topNormals[threeI + 2];
|
||
|
|
}
|
||
|
|
if (computeTopOffsets) {
|
||
|
|
wallOffsetAttribute[wallOffsetIndex++] = 1;
|
||
|
|
wallOffsetIndex += 1;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
} else {
|
||
|
|
var southIndex = northCap ? area + 1 : area;
|
||
|
|
threeI = southIndex * 3;
|
||
|
|
|
||
|
|
for (i = 0; i < 2; i++) { // duplicate corner points
|
||
|
|
wallPositions = addWallPositions(wallPositions, posIndex, threeI, topPositions, bottomPositions);
|
||
|
|
posIndex += 6;
|
||
|
|
if (vertexFormat.st) {
|
||
|
|
wallTextures = addWallTextureCoordinates(wallTextures, stIndex, southIndex * 2, topSt);
|
||
|
|
stIndex += 4;
|
||
|
|
}
|
||
|
|
if (shadowVolume) {
|
||
|
|
extrudeNormalIndex += 3;
|
||
|
|
wallExtrudeNormals[extrudeNormalIndex++] = topNormals[threeI];
|
||
|
|
wallExtrudeNormals[extrudeNormalIndex++] = topNormals[threeI + 1];
|
||
|
|
wallExtrudeNormals[extrudeNormalIndex++] = topNormals[threeI + 2];
|
||
|
|
}
|
||
|
|
if (computeTopOffsets) {
|
||
|
|
wallOffsetAttribute[wallOffsetIndex++] = 1;
|
||
|
|
wallOffsetIndex += 1;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
for (i = area - 1; i > 0; i -= width) {
|
||
|
|
threeI = i * 3;
|
||
|
|
wallPositions = addWallPositions(wallPositions, posIndex, threeI, topPositions, bottomPositions);
|
||
|
|
posIndex += 6;
|
||
|
|
if (vertexFormat.st) {
|
||
|
|
wallTextures = addWallTextureCoordinates(wallTextures, stIndex, i * 2, topSt);
|
||
|
|
stIndex += 4;
|
||
|
|
}
|
||
|
|
if (shadowVolume) {
|
||
|
|
extrudeNormalIndex += 3;
|
||
|
|
wallExtrudeNormals[extrudeNormalIndex++] = topNormals[threeI];
|
||
|
|
wallExtrudeNormals[extrudeNormalIndex++] = topNormals[threeI + 1];
|
||
|
|
wallExtrudeNormals[extrudeNormalIndex++] = topNormals[threeI + 2];
|
||
|
|
}
|
||
|
|
if (computeTopOffsets) {
|
||
|
|
wallOffsetAttribute[wallOffsetIndex++] = 1;
|
||
|
|
wallOffsetIndex += 1;
|
||
|
|
}
|
||
|
|
|
||
|
|
}
|
||
|
|
|
||
|
|
if (!northCap) {
|
||
|
|
for (i = width - 1; i >= 0; i--) {
|
||
|
|
threeI = i * 3;
|
||
|
|
wallPositions = addWallPositions(wallPositions, posIndex, threeI, topPositions, bottomPositions);
|
||
|
|
posIndex += 6;
|
||
|
|
if (vertexFormat.st) {
|
||
|
|
wallTextures = addWallTextureCoordinates(wallTextures, stIndex, i * 2, topSt);
|
||
|
|
stIndex += 4;
|
||
|
|
}
|
||
|
|
if (shadowVolume) {
|
||
|
|
extrudeNormalIndex += 3;
|
||
|
|
wallExtrudeNormals[extrudeNormalIndex++] = topNormals[threeI];
|
||
|
|
wallExtrudeNormals[extrudeNormalIndex++] = topNormals[threeI + 1];
|
||
|
|
wallExtrudeNormals[extrudeNormalIndex++] = topNormals[threeI + 2];
|
||
|
|
}
|
||
|
|
if (computeTopOffsets) {
|
||
|
|
wallOffsetAttribute[wallOffsetIndex++] = 1;
|
||
|
|
wallOffsetIndex += 1;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
} else {
|
||
|
|
var northIndex = area;
|
||
|
|
threeI = northIndex * 3;
|
||
|
|
|
||
|
|
for (i = 0; i < 2; i++) { // duplicate corner points
|
||
|
|
wallPositions = addWallPositions(wallPositions, posIndex, threeI, topPositions, bottomPositions);
|
||
|
|
posIndex += 6;
|
||
|
|
if (vertexFormat.st) {
|
||
|
|
wallTextures = addWallTextureCoordinates(wallTextures, stIndex, northIndex * 2, topSt);
|
||
|
|
stIndex += 4;
|
||
|
|
}
|
||
|
|
if (shadowVolume) {
|
||
|
|
extrudeNormalIndex += 3;
|
||
|
|
wallExtrudeNormals[extrudeNormalIndex++] = topNormals[threeI];
|
||
|
|
wallExtrudeNormals[extrudeNormalIndex++] = topNormals[threeI + 1];
|
||
|
|
wallExtrudeNormals[extrudeNormalIndex++] = topNormals[threeI + 2];
|
||
|
|
}
|
||
|
|
if (computeTopOffsets) {
|
||
|
|
wallOffsetAttribute[wallOffsetIndex++] = 1;
|
||
|
|
wallOffsetIndex += 1;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
var geo = calculateAttributesWall(wallPositions, vertexFormat, ellipsoid);
|
||
|
|
|
||
|
|
if (vertexFormat.st) {
|
||
|
|
geo.attributes.st = new GeometryAttribute.GeometryAttribute({
|
||
|
|
componentDatatype : ComponentDatatype.ComponentDatatype.FLOAT,
|
||
|
|
componentsPerAttribute : 2,
|
||
|
|
values : wallTextures
|
||
|
|
});
|
||
|
|
}
|
||
|
|
if (shadowVolume) {
|
||
|
|
geo.attributes.extrudeDirection = new GeometryAttribute.GeometryAttribute({
|
||
|
|
componentDatatype : ComponentDatatype.ComponentDatatype.FLOAT,
|
||
|
|
componentsPerAttribute : 3,
|
||
|
|
values : wallExtrudeNormals
|
||
|
|
});
|
||
|
|
}
|
||
|
|
if (hasOffsets) {
|
||
|
|
geo.attributes.applyOffset = new GeometryAttribute.GeometryAttribute({
|
||
|
|
componentDatatype : ComponentDatatype.ComponentDatatype.UNSIGNED_BYTE,
|
||
|
|
componentsPerAttribute : 1,
|
||
|
|
values : wallOffsetAttribute
|
||
|
|
});
|
||
|
|
}
|
||
|
|
|
||
|
|
var wallIndices = IndexDatatype.IndexDatatype.createTypedArray(wallCount, perimeterPositions * 6);
|
||
|
|
|
||
|
|
var upperLeft;
|
||
|
|
var lowerLeft;
|
||
|
|
var lowerRight;
|
||
|
|
var upperRight;
|
||
|
|
length = wallPositions.length / 3;
|
||
|
|
var index = 0;
|
||
|
|
for (i = 0; i < length - 1; i += 2) {
|
||
|
|
upperLeft = i;
|
||
|
|
upperRight = (upperLeft + 2) % length;
|
||
|
|
var p1 = Cartesian2.Cartesian3.fromArray(wallPositions, upperLeft * 3, v1Scratch);
|
||
|
|
var p2 = Cartesian2.Cartesian3.fromArray(wallPositions, upperRight * 3, v2Scratch);
|
||
|
|
if (Cartesian2.Cartesian3.equalsEpsilon(p1, p2, _Math.CesiumMath.EPSILON10)) {
|
||
|
|
continue;
|
||
|
|
}
|
||
|
|
lowerLeft = (upperLeft + 1) % length;
|
||
|
|
lowerRight = (lowerLeft + 2) % length;
|
||
|
|
wallIndices[index++] = upperLeft;
|
||
|
|
wallIndices[index++] = lowerLeft;
|
||
|
|
wallIndices[index++] = upperRight;
|
||
|
|
wallIndices[index++] = upperRight;
|
||
|
|
wallIndices[index++] = lowerLeft;
|
||
|
|
wallIndices[index++] = lowerRight;
|
||
|
|
}
|
||
|
|
|
||
|
|
geo.indices = wallIndices;
|
||
|
|
|
||
|
|
geo = GeometryPipeline.GeometryPipeline.combineInstances([
|
||
|
|
new GeometryInstance.GeometryInstance({
|
||
|
|
geometry : topBottomGeo
|
||
|
|
}),
|
||
|
|
new GeometryInstance.GeometryInstance({
|
||
|
|
geometry : geo
|
||
|
|
})
|
||
|
|
]);
|
||
|
|
|
||
|
|
return geo[0];
|
||
|
|
}
|
||
|
|
|
||
|
|
var scratchRectanglePoints = [new Cartesian2.Cartesian3(), new Cartesian2.Cartesian3(), new Cartesian2.Cartesian3(), new Cartesian2.Cartesian3()];
|
||
|
|
var nwScratch = new Cartesian2.Cartographic();
|
||
|
|
var stNwScratch = new Cartesian2.Cartographic();
|
||
|
|
function computeRectangle(rectangle, granularity, rotation, ellipsoid, result) {
|
||
|
|
if (rotation === 0.0) {
|
||
|
|
return Cartesian2.Rectangle.clone(rectangle, result);
|
||
|
|
}
|
||
|
|
|
||
|
|
var computedOptions = RectangleGeometryLibrary.RectangleGeometryLibrary.computeOptions(rectangle, granularity, rotation, 0, rectangleScratch, nwScratch);
|
||
|
|
|
||
|
|
var height = computedOptions.height;
|
||
|
|
var width = computedOptions.width;
|
||
|
|
|
||
|
|
var positions = scratchRectanglePoints;
|
||
|
|
RectangleGeometryLibrary.RectangleGeometryLibrary.computePosition(computedOptions, ellipsoid, false, 0, 0, positions[0]);
|
||
|
|
RectangleGeometryLibrary.RectangleGeometryLibrary.computePosition(computedOptions, ellipsoid, false, 0, width - 1, positions[1]);
|
||
|
|
RectangleGeometryLibrary.RectangleGeometryLibrary.computePosition(computedOptions, ellipsoid, false, height - 1, 0, positions[2]);
|
||
|
|
RectangleGeometryLibrary.RectangleGeometryLibrary.computePosition(computedOptions, ellipsoid, false, height - 1, width - 1, positions[3]);
|
||
|
|
|
||
|
|
return Cartesian2.Rectangle.fromCartesianArray(positions, ellipsoid, result);
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* A description of a cartographic rectangle on an ellipsoid centered at the origin. Rectangle geometry can be rendered with both {@link Primitive} and {@link GroundPrimitive}.
|
||
|
|
*
|
||
|
|
* @alias RectangleGeometry
|
||
|
|
* @constructor
|
||
|
|
*
|
||
|
|
* @param {Object} options Object with the following properties:
|
||
|
|
* @param {Rectangle} options.rectangle A cartographic rectangle with north, south, east and west properties in radians.
|
||
|
|
* @param {VertexFormat} [options.vertexFormat=VertexFormat.DEFAULT] The vertex attributes to be computed.
|
||
|
|
* @param {Ellipsoid} [options.ellipsoid=Ellipsoid.WGS84] The ellipsoid on which the rectangle lies.
|
||
|
|
* @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 {Number} [options.height=0.0] The distance in meters between the rectangle and the ellipsoid surface.
|
||
|
|
* @param {Number} [options.rotation=0.0] The rotation of the rectangle, in radians. A positive rotation is counter-clockwise.
|
||
|
|
* @param {Number} [options.stRotation=0.0] The rotation of the texture coordinates, in radians. A positive rotation is counter-clockwise.
|
||
|
|
* @param {Number} [options.extrudedHeight] The distance in meters between the rectangle's extruded face and the ellipsoid surface.
|
||
|
|
*
|
||
|
|
* @exception {DeveloperError} <code>options.rectangle.north</code> must be in the interval [<code>-Pi/2</code>, <code>Pi/2</code>].
|
||
|
|
* @exception {DeveloperError} <code>options.rectangle.south</code> must be in the interval [<code>-Pi/2</code>, <code>Pi/2</code>].
|
||
|
|
* @exception {DeveloperError} <code>options.rectangle.east</code> must be in the interval [<code>-Pi</code>, <code>Pi</code>].
|
||
|
|
* @exception {DeveloperError} <code>options.rectangle.west</code> must be in the interval [<code>-Pi</code>, <code>Pi</code>].
|
||
|
|
* @exception {DeveloperError} <code>options.rectangle.north</code> must be greater than <code>options.rectangle.south</code>.
|
||
|
|
*
|
||
|
|
* @see RectangleGeometry#createGeometry
|
||
|
|
*
|
||
|
|
* @demo {@link https://sandcastle.cesium.com/index.html?src=Rectangle.html|Cesium Sandcastle Rectangle Demo}
|
||
|
|
*
|
||
|
|
* @example
|
||
|
|
* // 1. create a rectangle
|
||
|
|
* var rectangle = new Cesium.RectangleGeometry({
|
||
|
|
* ellipsoid : Cesium.Ellipsoid.WGS84,
|
||
|
|
* rectangle : Cesium.Rectangle.fromDegrees(-80.0, 39.0, -74.0, 42.0),
|
||
|
|
* height : 10000.0
|
||
|
|
* });
|
||
|
|
* var geometry = Cesium.RectangleGeometry.createGeometry(rectangle);
|
||
|
|
*
|
||
|
|
* // 2. create an extruded rectangle without a top
|
||
|
|
* var rectangle = new Cesium.RectangleGeometry({
|
||
|
|
* ellipsoid : Cesium.Ellipsoid.WGS84,
|
||
|
|
* rectangle : Cesium.Rectangle.fromDegrees(-80.0, 39.0, -74.0, 42.0),
|
||
|
|
* height : 10000.0,
|
||
|
|
* extrudedHeight: 300000
|
||
|
|
* });
|
||
|
|
* var geometry = Cesium.RectangleGeometry.createGeometry(rectangle);
|
||
|
|
*/
|
||
|
|
function RectangleGeometry(options) {
|
||
|
|
options = when.defaultValue(options, when.defaultValue.EMPTY_OBJECT);
|
||
|
|
|
||
|
|
var rectangle = options.rectangle;
|
||
|
|
|
||
|
|
//>>includeStart('debug', pragmas.debug);
|
||
|
|
Check.Check.typeOf.object('rectangle', rectangle);
|
||
|
|
Cartesian2.Rectangle.validate(rectangle);
|
||
|
|
if (rectangle.north < rectangle.south) {
|
||
|
|
throw new Check.DeveloperError('options.rectangle.north must be greater than or equal to options.rectangle.south');
|
||
|
|
}
|
||
|
|
//>>includeEnd('debug');
|
||
|
|
|
||
|
|
var height = when.defaultValue(options.height, 0.0);
|
||
|
|
var extrudedHeight = when.defaultValue(options.extrudedHeight, height);
|
||
|
|
|
||
|
|
this._rectangle = Cartesian2.Rectangle.clone(rectangle);
|
||
|
|
this._granularity = when.defaultValue(options.granularity, _Math.CesiumMath.RADIANS_PER_DEGREE);
|
||
|
|
this._ellipsoid = Cartesian2.Ellipsoid.clone(when.defaultValue(options.ellipsoid, Cartesian2.Ellipsoid.WGS84));
|
||
|
|
this._surfaceHeight = Math.max(height, extrudedHeight);
|
||
|
|
this._rotation = when.defaultValue(options.rotation, 0.0);
|
||
|
|
this._stRotation = when.defaultValue(options.stRotation, 0.0);
|
||
|
|
this._vertexFormat = VertexFormat.VertexFormat.clone(when.defaultValue(options.vertexFormat, VertexFormat.VertexFormat.DEFAULT));
|
||
|
|
this._extrudedHeight = Math.min(height, extrudedHeight);
|
||
|
|
this._shadowVolume = when.defaultValue(options.shadowVolume, false);
|
||
|
|
this._workerName = 'createRectangleGeometry';
|
||
|
|
this._offsetAttribute = options.offsetAttribute;
|
||
|
|
this._rotatedRectangle = undefined;
|
||
|
|
|
||
|
|
this._textureCoordinateRotationPoints = undefined;
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* The number of elements used to pack the object into an array.
|
||
|
|
* @type {Number}
|
||
|
|
*/
|
||
|
|
RectangleGeometry.packedLength = Cartesian2.Rectangle.packedLength + Cartesian2.Ellipsoid.packedLength + VertexFormat.VertexFormat.packedLength + 7;
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Stores the provided instance into the provided array.
|
||
|
|
*
|
||
|
|
* @param {RectangleGeometry} 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
|
||
|
|
*/
|
||
|
|
RectangleGeometry.pack = function(value, array, startingIndex) {
|
||
|
|
//>>includeStart('debug', pragmas.debug);
|
||
|
|
Check.Check.typeOf.object('value', value);
|
||
|
|
Check.Check.defined('array', array);
|
||
|
|
//>>includeEnd('debug');
|
||
|
|
|
||
|
|
startingIndex = when.defaultValue(startingIndex, 0);
|
||
|
|
|
||
|
|
Cartesian2.Rectangle.pack(value._rectangle, array, startingIndex);
|
||
|
|
startingIndex += Cartesian2.Rectangle.packedLength;
|
||
|
|
|
||
|
|
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._granularity;
|
||
|
|
array[startingIndex++] = value._surfaceHeight;
|
||
|
|
array[startingIndex++] = value._rotation;
|
||
|
|
array[startingIndex++] = value._stRotation;
|
||
|
|
array[startingIndex++] = value._extrudedHeight;
|
||
|
|
array[startingIndex++] = value._shadowVolume ? 1.0 : 0.0;
|
||
|
|
array[startingIndex] = when.defaultValue(value._offsetAttribute, -1);
|
||
|
|
|
||
|
|
return array;
|
||
|
|
};
|
||
|
|
|
||
|
|
var scratchRectangle = new Cartesian2.Rectangle();
|
||
|
|
var scratchEllipsoid = Cartesian2.Ellipsoid.clone(Cartesian2.Ellipsoid.UNIT_SPHERE);
|
||
|
|
var scratchOptions = {
|
||
|
|
rectangle : scratchRectangle,
|
||
|
|
ellipsoid : scratchEllipsoid,
|
||
|
|
vertexFormat : scratchVertexFormat,
|
||
|
|
granularity : undefined,
|
||
|
|
height : undefined,
|
||
|
|
rotation : undefined,
|
||
|
|
stRotation : undefined,
|
||
|
|
extrudedHeight : undefined,
|
||
|
|
shadowVolume : undefined,
|
||
|
|
offsetAttribute: 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 {RectangleGeometry} [result] The object into which to store the result.
|
||
|
|
* @returns {RectangleGeometry} The modified result parameter or a new RectangleGeometry instance if one was not provided.
|
||
|
|
*/
|
||
|
|
RectangleGeometry.unpack = function(array, startingIndex, result) {
|
||
|
|
//>>includeStart('debug', pragmas.debug);
|
||
|
|
Check.Check.defined('array', array);
|
||
|
|
//>>includeEnd('debug');
|
||
|
|
|
||
|
|
startingIndex = when.defaultValue(startingIndex, 0);
|
||
|
|
|
||
|
|
var rectangle = Cartesian2.Rectangle.unpack(array, startingIndex, scratchRectangle);
|
||
|
|
startingIndex += Cartesian2.Rectangle.packedLength;
|
||
|
|
|
||
|
|
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 granularity = array[startingIndex++];
|
||
|
|
var surfaceHeight = array[startingIndex++];
|
||
|
|
var rotation = array[startingIndex++];
|
||
|
|
var stRotation = array[startingIndex++];
|
||
|
|
var extrudedHeight = array[startingIndex++];
|
||
|
|
var shadowVolume = array[startingIndex++] === 1.0;
|
||
|
|
var offsetAttribute = array[startingIndex];
|
||
|
|
|
||
|
|
if (!when.defined(result)) {
|
||
|
|
scratchOptions.granularity = granularity;
|
||
|
|
scratchOptions.height = surfaceHeight;
|
||
|
|
scratchOptions.rotation = rotation;
|
||
|
|
scratchOptions.stRotation = stRotation;
|
||
|
|
scratchOptions.extrudedHeight = extrudedHeight;
|
||
|
|
scratchOptions.shadowVolume = shadowVolume;
|
||
|
|
scratchOptions.offsetAttribute = offsetAttribute === -1 ? undefined : offsetAttribute;
|
||
|
|
|
||
|
|
return new RectangleGeometry(scratchOptions);
|
||
|
|
}
|
||
|
|
|
||
|
|
result._rectangle = Cartesian2.Rectangle.clone(rectangle, result._rectangle);
|
||
|
|
result._ellipsoid = Cartesian2.Ellipsoid.clone(ellipsoid, result._ellipsoid);
|
||
|
|
result._vertexFormat = VertexFormat.VertexFormat.clone(vertexFormat, result._vertexFormat);
|
||
|
|
result._granularity = granularity;
|
||
|
|
result._surfaceHeight = surfaceHeight;
|
||
|
|
result._rotation = rotation;
|
||
|
|
result._stRotation = stRotation;
|
||
|
|
result._extrudedHeight = extrudedHeight;
|
||
|
|
result._shadowVolume = shadowVolume;
|
||
|
|
result._offsetAttribute = offsetAttribute === -1 ? undefined : offsetAttribute;
|
||
|
|
|
||
|
|
return result;
|
||
|
|
};
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Computes the bounding rectangle based on the provided options
|
||
|
|
*
|
||
|
|
* @param {Object} options Object with the following properties:
|
||
|
|
* @param {Rectangle} options.rectangle A cartographic rectangle with north, south, east and west properties in radians.
|
||
|
|
* @param {Ellipsoid} [options.ellipsoid=Ellipsoid.WGS84] The ellipsoid on which the rectangle lies.
|
||
|
|
* @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 {Number} [options.rotation=0.0] The rotation of the rectangle, in radians. A positive rotation is counter-clockwise.
|
||
|
|
* @param {Rectangle} [result] An object in which to store the result.
|
||
|
|
*
|
||
|
|
* @returns {Rectangle} The result rectangle
|
||
|
|
*/
|
||
|
|
RectangleGeometry.computeRectangle = function(options, result) {
|
||
|
|
options = when.defaultValue(options, when.defaultValue.EMPTY_OBJECT);
|
||
|
|
|
||
|
|
var rectangle = options.rectangle;
|
||
|
|
|
||
|
|
//>>includeStart('debug', pragmas.debug);
|
||
|
|
Check.Check.typeOf.object('rectangle', rectangle);
|
||
|
|
Cartesian2.Rectangle.validate(rectangle);
|
||
|
|
if (rectangle.north < rectangle.south) {
|
||
|
|
throw new Check.DeveloperError('options.rectangle.north must be greater than or equal to options.rectangle.south');
|
||
|
|
}
|
||
|
|
//>>includeEnd('debug');
|
||
|
|
|
||
|
|
var granularity = when.defaultValue(options.granularity, _Math.CesiumMath.RADIANS_PER_DEGREE);
|
||
|
|
var ellipsoid = when.defaultValue(options.ellipsoid, Cartesian2.Ellipsoid.WGS84);
|
||
|
|
var rotation = when.defaultValue(options.rotation, 0.0);
|
||
|
|
|
||
|
|
return computeRectangle(rectangle, granularity, rotation, ellipsoid, result);
|
||
|
|
};
|
||
|
|
|
||
|
|
var tangentRotationMatrixScratch = new Transforms.Matrix3();
|
||
|
|
var quaternionScratch = new Transforms.Quaternion();
|
||
|
|
var centerScratch = new Cartesian2.Cartographic();
|
||
|
|
/**
|
||
|
|
* Computes the geometric representation of a rectangle, including its vertices, indices, and a bounding sphere.
|
||
|
|
*
|
||
|
|
* @param {RectangleGeometry} rectangleGeometry A description of the rectangle.
|
||
|
|
* @returns {Geometry|undefined} The computed vertices and indices.
|
||
|
|
*
|
||
|
|
* @exception {DeveloperError} Rotated rectangle is invalid.
|
||
|
|
*/
|
||
|
|
RectangleGeometry.createGeometry = function(rectangleGeometry) {
|
||
|
|
if ((_Math.CesiumMath.equalsEpsilon(rectangleGeometry._rectangle.north, rectangleGeometry._rectangle.south, _Math.CesiumMath.EPSILON10) ||
|
||
|
|
(_Math.CesiumMath.equalsEpsilon(rectangleGeometry._rectangle.east, rectangleGeometry._rectangle.west, _Math.CesiumMath.EPSILON10)))) {
|
||
|
|
return undefined;
|
||
|
|
}
|
||
|
|
|
||
|
|
var rectangle = rectangleGeometry._rectangle;
|
||
|
|
var ellipsoid = rectangleGeometry._ellipsoid;
|
||
|
|
var rotation = rectangleGeometry._rotation;
|
||
|
|
var stRotation = rectangleGeometry._stRotation;
|
||
|
|
var vertexFormat = rectangleGeometry._vertexFormat;
|
||
|
|
|
||
|
|
var computedOptions = RectangleGeometryLibrary.RectangleGeometryLibrary.computeOptions(rectangle, rectangleGeometry._granularity, rotation, stRotation, rectangleScratch, nwScratch, stNwScratch);
|
||
|
|
|
||
|
|
var tangentRotationMatrix = tangentRotationMatrixScratch;
|
||
|
|
if (stRotation !== 0 || rotation !== 0) {
|
||
|
|
var center = Cartesian2.Rectangle.center(rectangle, centerScratch);
|
||
|
|
var axis = ellipsoid.geodeticSurfaceNormalCartographic(center, v1Scratch);
|
||
|
|
Transforms.Quaternion.fromAxisAngle(axis, -stRotation, quaternionScratch);
|
||
|
|
Transforms.Matrix3.fromQuaternion(quaternionScratch, tangentRotationMatrix);
|
||
|
|
} else {
|
||
|
|
Transforms.Matrix3.clone(Transforms.Matrix3.IDENTITY, tangentRotationMatrix);
|
||
|
|
}
|
||
|
|
|
||
|
|
var surfaceHeight = rectangleGeometry._surfaceHeight;
|
||
|
|
var extrudedHeight = rectangleGeometry._extrudedHeight;
|
||
|
|
var extrude = !_Math.CesiumMath.equalsEpsilon(surfaceHeight, extrudedHeight, 0, _Math.CesiumMath.EPSILON2);
|
||
|
|
|
||
|
|
computedOptions.lonScalar = 1.0 / rectangleGeometry._rectangle.width;
|
||
|
|
computedOptions.latScalar = 1.0 / rectangleGeometry._rectangle.height;
|
||
|
|
computedOptions.tangentRotationMatrix = tangentRotationMatrix;
|
||
|
|
|
||
|
|
var geometry;
|
||
|
|
var boundingSphere;
|
||
|
|
rectangle = rectangleGeometry._rectangle;
|
||
|
|
if (extrude) {
|
||
|
|
geometry = constructExtrudedRectangle(rectangleGeometry, computedOptions);
|
||
|
|
var topBS = Transforms.BoundingSphere.fromRectangle3D(rectangle, ellipsoid, surfaceHeight, topBoundingSphere);
|
||
|
|
var bottomBS = Transforms.BoundingSphere.fromRectangle3D(rectangle, ellipsoid, extrudedHeight, bottomBoundingSphere);
|
||
|
|
boundingSphere = Transforms.BoundingSphere.union(topBS, bottomBS);
|
||
|
|
} else {
|
||
|
|
geometry = constructRectangle(rectangleGeometry, computedOptions);
|
||
|
|
geometry.attributes.position.values = PolygonPipeline.PolygonPipeline.scaleToGeodeticHeight(geometry.attributes.position.values, surfaceHeight, ellipsoid, false);
|
||
|
|
|
||
|
|
if (when.defined(rectangleGeometry._offsetAttribute)) {
|
||
|
|
var length = geometry.attributes.position.values.length;
|
||
|
|
var applyOffset = new Uint8Array(length / 3);
|
||
|
|
var offsetValue = rectangleGeometry._offsetAttribute === GeometryOffsetAttribute.GeometryOffsetAttribute.NONE ? 0 : 1;
|
||
|
|
GeometryOffsetAttribute.arrayFill(applyOffset, offsetValue);
|
||
|
|
geometry.attributes.applyOffset = new GeometryAttribute.GeometryAttribute({
|
||
|
|
componentDatatype : ComponentDatatype.ComponentDatatype.UNSIGNED_BYTE,
|
||
|
|
componentsPerAttribute : 1,
|
||
|
|
values: applyOffset
|
||
|
|
});
|
||
|
|
}
|
||
|
|
|
||
|
|
boundingSphere = Transforms.BoundingSphere.fromRectangle3D(rectangle, ellipsoid, surfaceHeight);
|
||
|
|
}
|
||
|
|
|
||
|
|
if (!vertexFormat.position) {
|
||
|
|
delete geometry.attributes.position;
|
||
|
|
}
|
||
|
|
|
||
|
|
return new GeometryAttribute.Geometry({
|
||
|
|
attributes : geometry.attributes,
|
||
|
|
indices : geometry.indices,
|
||
|
|
primitiveType : geometry.primitiveType,
|
||
|
|
boundingSphere : boundingSphere,
|
||
|
|
offsetAttribute : rectangleGeometry._offsetAttribute
|
||
|
|
});
|
||
|
|
};
|
||
|
|
|
||
|
|
/**
|
||
|
|
* @private
|
||
|
|
*/
|
||
|
|
RectangleGeometry.createShadowVolume = function(rectangleGeometry, minHeightFunc, maxHeightFunc) {
|
||
|
|
var granularity = rectangleGeometry._granularity;
|
||
|
|
var ellipsoid = rectangleGeometry._ellipsoid;
|
||
|
|
|
||
|
|
var minHeight = minHeightFunc(granularity, ellipsoid);
|
||
|
|
var maxHeight = maxHeightFunc(granularity, ellipsoid);
|
||
|
|
|
||
|
|
return new RectangleGeometry({
|
||
|
|
rectangle : rectangleGeometry._rectangle,
|
||
|
|
rotation : rectangleGeometry._rotation,
|
||
|
|
ellipsoid : ellipsoid,
|
||
|
|
stRotation : rectangleGeometry._stRotation,
|
||
|
|
granularity : granularity,
|
||
|
|
extrudedHeight : maxHeight,
|
||
|
|
height : minHeight,
|
||
|
|
vertexFormat : VertexFormat.VertexFormat.POSITION_ONLY,
|
||
|
|
shadowVolume : true
|
||
|
|
});
|
||
|
|
};
|
||
|
|
|
||
|
|
var unrotatedTextureRectangleScratch = new Cartesian2.Rectangle();
|
||
|
|
var points2DScratch = [new Cartesian2.Cartesian2(), new Cartesian2.Cartesian2(), new Cartesian2.Cartesian2()];
|
||
|
|
var rotation2DScratch = new GeometryAttribute.Matrix2();
|
||
|
|
var rectangleCenterScratch = new Cartesian2.Cartographic();
|
||
|
|
|
||
|
|
function textureCoordinateRotationPoints(rectangleGeometry) {
|
||
|
|
if (rectangleGeometry._stRotation === 0.0) {
|
||
|
|
return [0, 0, 0, 1, 1, 0];
|
||
|
|
}
|
||
|
|
|
||
|
|
var rectangle = Cartesian2.Rectangle.clone(rectangleGeometry._rectangle, unrotatedTextureRectangleScratch);
|
||
|
|
var granularity = rectangleGeometry._granularity;
|
||
|
|
var ellipsoid = rectangleGeometry._ellipsoid;
|
||
|
|
|
||
|
|
// Rotate to align the texture coordinates with ENU
|
||
|
|
var rotation = rectangleGeometry._rotation - rectangleGeometry._stRotation;
|
||
|
|
|
||
|
|
var unrotatedTextureRectangle = computeRectangle(rectangle, granularity, rotation, ellipsoid, unrotatedTextureRectangleScratch);
|
||
|
|
|
||
|
|
// Assume a computed "east-north" texture coordinate system based on spherical or planar tricks, bounded by `boundingRectangle`.
|
||
|
|
// The "desired" texture coordinate system forms an oriented rectangle (un-oriented computed) around the geometry that completely and tightly bounds it.
|
||
|
|
// We want to map from the "east-north" texture coordinate system into the "desired" system using a pair of lines (analagous planes in 2D)
|
||
|
|
// Compute 3 corners of the "desired" texture coordinate system in "east-north" texture space by the following in cartographic space:
|
||
|
|
// - rotate 3 of the corners in unrotatedTextureRectangle by stRotation around the center of the bounding rectangle
|
||
|
|
// - apply the "east-north" system's normalization formula to the rotated cartographics, even though this is likely to produce values outside [0-1].
|
||
|
|
// This gives us a set of points in the "east-north" texture coordinate system that can be used to map "east-north" texture coordinates to "desired."
|
||
|
|
|
||
|
|
var points2D = points2DScratch;
|
||
|
|
points2D[0].x = unrotatedTextureRectangle.west;
|
||
|
|
points2D[0].y = unrotatedTextureRectangle.south;
|
||
|
|
|
||
|
|
points2D[1].x = unrotatedTextureRectangle.west;
|
||
|
|
points2D[1].y = unrotatedTextureRectangle.north;
|
||
|
|
|
||
|
|
points2D[2].x = unrotatedTextureRectangle.east;
|
||
|
|
points2D[2].y = unrotatedTextureRectangle.south;
|
||
|
|
|
||
|
|
var boundingRectangle = rectangleGeometry.rectangle;
|
||
|
|
var toDesiredInComputed = GeometryAttribute.Matrix2.fromRotation(rectangleGeometry._stRotation, rotation2DScratch);
|
||
|
|
var boundingRectangleCenter = Cartesian2.Rectangle.center(boundingRectangle, rectangleCenterScratch);
|
||
|
|
|
||
|
|
for (var i = 0; i < 3; ++i) {
|
||
|
|
var point2D = points2D[i];
|
||
|
|
point2D.x -= boundingRectangleCenter.longitude;
|
||
|
|
point2D.y -= boundingRectangleCenter.latitude;
|
||
|
|
GeometryAttribute.Matrix2.multiplyByVector(toDesiredInComputed, point2D, point2D);
|
||
|
|
point2D.x += boundingRectangleCenter.longitude;
|
||
|
|
point2D.y += boundingRectangleCenter.latitude;
|
||
|
|
|
||
|
|
// Convert point into east-north texture coordinate space
|
||
|
|
point2D.x = (point2D.x - boundingRectangle.west) / boundingRectangle.width;
|
||
|
|
point2D.y = (point2D.y - boundingRectangle.south) / boundingRectangle.height;
|
||
|
|
}
|
||
|
|
|
||
|
|
var minXYCorner = points2D[0];
|
||
|
|
var maxYCorner = points2D[1];
|
||
|
|
var maxXCorner = points2D[2];
|
||
|
|
var result = new Array(6);
|
||
|
|
Cartesian2.Cartesian2.pack(minXYCorner, result);
|
||
|
|
Cartesian2.Cartesian2.pack(maxYCorner, result, 2);
|
||
|
|
Cartesian2.Cartesian2.pack(maxXCorner, result, 4);
|
||
|
|
return result;
|
||
|
|
}
|
||
|
|
|
||
|
|
Object.defineProperties(RectangleGeometry.prototype, {
|
||
|
|
/**
|
||
|
|
* @private
|
||
|
|
*/
|
||
|
|
rectangle : {
|
||
|
|
get : function() {
|
||
|
|
if (!when.defined(this._rotatedRectangle)) {
|
||
|
|
this._rotatedRectangle = computeRectangle(this._rectangle, this._granularity, this._rotation, this._ellipsoid);
|
||
|
|
}
|
||
|
|
return this._rotatedRectangle;
|
||
|
|
}
|
||
|
|
},
|
||
|
|
/**
|
||
|
|
* For remapping texture coordinates when rendering RectangleGeometries as GroundPrimitives.
|
||
|
|
* This version permits skew in textures by computing offsets directly in cartographic space and
|
||
|
|
* more accurately approximates rendering RectangleGeometries with height as standard Primitives.
|
||
|
|
* @see Geometry#_textureCoordinateRotationPoints
|
||
|
|
* @private
|
||
|
|
*/
|
||
|
|
textureCoordinateRotationPoints : {
|
||
|
|
get : function() {
|
||
|
|
if (!when.defined(this._textureCoordinateRotationPoints)) {
|
||
|
|
this._textureCoordinateRotationPoints = textureCoordinateRotationPoints(this);
|
||
|
|
}
|
||
|
|
return this._textureCoordinateRotationPoints;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
});
|
||
|
|
|
||
|
|
function createRectangleGeometry(rectangleGeometry, offset) {
|
||
|
|
if (when.defined(offset)) {
|
||
|
|
rectangleGeometry = RectangleGeometry.unpack(rectangleGeometry, offset);
|
||
|
|
}
|
||
|
|
rectangleGeometry._ellipsoid = Cartesian2.Ellipsoid.clone(rectangleGeometry._ellipsoid);
|
||
|
|
rectangleGeometry._rectangle = Cartesian2.Rectangle.clone(rectangleGeometry._rectangle);
|
||
|
|
return RectangleGeometry.createGeometry(rectangleGeometry);
|
||
|
|
}
|
||
|
|
|
||
|
|
return createRectangleGeometry;
|
||
|
|
|
||
|
|
});
|
||
|
|
//# sourceMappingURL=createRectangleGeometry.js.map
|