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/createRectangleGeometry.js | 1207 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++
1 files changed, 1,207 insertions(+), 0 deletions(-)
diff --git a/public/libs/Cesium/Workers/createRectangleGeometry.js b/public/libs/Cesium/Workers/createRectangleGeometry.js
new file mode 100644
index 0000000..10cbd08
--- /dev/null
+++ b/public/libs/Cesium/Workers/createRectangleGeometry.js
@@ -0,0 +1,1207 @@
+/**
+ * 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', './arrayFill-9766fb2e', './GeometryOffsetAttribute-999fc023', './VertexFormat-fe4db402', './GeometryInstance-93a01b5d', './EllipsoidRhumbLine-f161e674', './earcut-2.2.1-b404d9e6', './PolygonPipeline-fd46002b', './RectangleGeometryLibrary-e7665732'], function (when, Check, _Math, Cartographic, Cartesian2, BoundingSphere, Cartesian4, RuntimeError, WebGLConstants, ComponentDatatype, GeometryAttribute, PrimitiveType, FeatureDetection, Transforms, buildModuleUrl, GeometryAttributes, AttributeCompression, GeometryPipeline, EncodedCartesian3, IndexDatatype, IntersectionTests, Plane, arrayFill, GeometryOffsetAttribute, VertexFormat, GeometryInstance, EllipsoidRhumbLine, earcut2_2_1, PolygonPipeline, RectangleGeometryLibrary) { 'use strict';
+
+ var positionScratch = new Cartographic.Cartesian3();
+ var normalScratch = new Cartographic.Cartesian3();
+ var tangentScratch = new Cartographic.Cartesian3();
+ var bitangentScratch = new Cartographic.Cartesian3();
+ var rectangleScratch = new Cartesian2.Rectangle();
+ var stScratch = new Cartesian2.Cartesian2();
+ var bottomBoundingSphere = new BoundingSphere.BoundingSphere();
+ var topBoundingSphere = new BoundingSphere.BoundingSphere();
+
+ function createAttributes(vertexFormat, attributes) {
+ var geo = new GeometryAttribute.Geometry({
+ attributes : new GeometryAttributes.GeometryAttributes(),
+ primitiveType : PrimitiveType.PrimitiveType.TRIANGLES
+ });
+
+ geo.attributes.position = new GeometryAttribute.GeometryAttribute({
+ componentDatatype : ComponentDatatype.ComponentDatatype.DOUBLE,
+ componentsPerAttribute : 3,
+ values : attributes.positions
+ });
+ if (vertexFormat.normal) {
+ geo.attributes.normal = new GeometryAttribute.GeometryAttribute({
+ componentDatatype : ComponentDatatype.ComponentDatatype.FLOAT,
+ componentsPerAttribute : 3,
+ values : attributes.normals
+ });
+ }
+ if (vertexFormat.tangent) {
+ geo.attributes.tangent = new GeometryAttribute.GeometryAttribute({
+ componentDatatype : ComponentDatatype.ComponentDatatype.FLOAT,
+ componentsPerAttribute : 3,
+ values : attributes.tangents
+ });
+ }
+ if (vertexFormat.bitangent) {
+ geo.attributes.bitangent = new GeometryAttribute.GeometryAttribute({
+ componentDatatype : ComponentDatatype.ComponentDatatype.FLOAT,
+ componentsPerAttribute : 3,
+ values : attributes.bitangents
+ });
+ }
+ return geo;
+ }
+
+ function calculateAttributes(positions, vertexFormat, ellipsoid, tangentRotationMatrix) {
+ var length = positions.length;
+
+ var normals = (vertexFormat.normal) ? new Float32Array(length) : undefined;
+ var tangents = (vertexFormat.tangent) ? new Float32Array(length) : undefined;
+ var bitangents = (vertexFormat.bitangent) ? new Float32Array(length) : undefined;
+
+ var attrIndex = 0;
+ var bitangent = bitangentScratch;
+ var tangent = tangentScratch;
+ var normal = normalScratch;
+ if (vertexFormat.normal || vertexFormat.tangent || vertexFormat.bitangent) {
+ for (var i = 0; i < length; i += 3) {
+ var p = Cartographic.Cartesian3.fromArray(positions, i, positionScratch);
+ var attrIndex1 = attrIndex + 1;
+ var attrIndex2 = attrIndex + 2;
+
+ normal = ellipsoid.geodeticSurfaceNormal(p, normal);
+ if (vertexFormat.tangent || vertexFormat.bitangent) {
+ Cartographic.Cartesian3.cross(Cartographic.Cartesian3.UNIT_Z, normal, tangent);
+ BoundingSphere.Matrix3.multiplyByVector(tangentRotationMatrix, tangent, tangent);
+ Cartographic.Cartesian3.normalize(tangent, tangent);
+
+ if (vertexFormat.bitangent) {
+ Cartographic.Cartesian3.normalize(Cartographic.Cartesian3.cross(normal, tangent, bitangent), bitangent);
+ }
+ }
+
+ if (vertexFormat.normal) {
+ normals[attrIndex] = normal.x;
+ normals[attrIndex1] = normal.y;
+ normals[attrIndex2] = normal.z;
+ }
+ if (vertexFormat.tangent) {
+ tangents[attrIndex] = tangent.x;
+ tangents[attrIndex1] = tangent.y;
+ tangents[attrIndex2] = tangent.z;
+ }
+ if (vertexFormat.bitangent) {
+ bitangents[attrIndex] = bitangent.x;
+ bitangents[attrIndex1] = bitangent.y;
+ bitangents[attrIndex2] = bitangent.z;
+ }
+ attrIndex += 3;
+ }
+ }
+ return createAttributes(vertexFormat, {
+ positions : positions,
+ normals : normals,
+ tangents : tangents,
+ bitangents : bitangents
+ });
+ }
+
+ var v1Scratch = new Cartographic.Cartesian3();
+ var v2Scratch = new Cartographic.Cartesian3();
+
+ function calculateAttributesWall(positions, vertexFormat, ellipsoid) {
+ var length = positions.length;
+
+ var normals = (vertexFormat.normal) ? new Float32Array(length) : undefined;
+ var tangents = (vertexFormat.tangent) ? new Float32Array(length) : undefined;
+ var bitangents = (vertexFormat.bitangent) ? new Float32Array(length) : undefined;
+
+ var normalIndex = 0;
+ var tangentIndex = 0;
+ var bitangentIndex = 0;
+ var recomputeNormal = true;
+
+ var bitangent = bitangentScratch;
+ var tangent = tangentScratch;
+ var normal = normalScratch;
+ if (vertexFormat.normal || vertexFormat.tangent || vertexFormat.bitangent) {
+ for (var i = 0; i < length; i += 6) {
+ var p = Cartographic.Cartesian3.fromArray(positions, i, positionScratch);
+ var p1 = Cartographic.Cartesian3.fromArray(positions, (i + 6) % length, v1Scratch);
+ if (recomputeNormal) {
+ var p2 = Cartographic.Cartesian3.fromArray(positions, (i + 3) % length, v2Scratch);
+ Cartographic.Cartesian3.subtract(p1, p, p1);
+ Cartographic.Cartesian3.subtract(p2, p, p2);
+ normal = Cartographic.Cartesian3.normalize(Cartographic.Cartesian3.cross(p2, p1, normal), normal);
+ recomputeNormal = false;
+ }
+
+ if (Cartographic.Cartesian3.equalsEpsilon(p1, p, _Math.CesiumMath.EPSILON10)) { // if we've reached a corner
+ recomputeNormal = true;
+ }
+
+ if (vertexFormat.tangent || vertexFormat.bitangent) {
+ bitangent = ellipsoid.geodeticSurfaceNormal(p, bitangent);
+ if (vertexFormat.tangent) {
+ tangent = Cartographic.Cartesian3.normalize(Cartographic.Cartesian3.cross(bitangent, normal, tangent), tangent);
+ }
+ }
+
+ if (vertexFormat.normal) {
+ normals[normalIndex++] = normal.x;
+ normals[normalIndex++] = normal.y;
+ normals[normalIndex++] = normal.z;
+ normals[normalIndex++] = normal.x;
+ normals[normalIndex++] = normal.y;
+ normals[normalIndex++] = normal.z;
+ }
+
+ if (vertexFormat.tangent) {
+ tangents[tangentIndex++] = tangent.x;
+ tangents[tangentIndex++] = tangent.y;
+ tangents[tangentIndex++] = tangent.z;
+ tangents[tangentIndex++] = tangent.x;
+ tangents[tangentIndex++] = tangent.y;
+ tangents[tangentIndex++] = tangent.z;
+ }
+
+ if (vertexFormat.bitangent) {
+ bitangents[bitangentIndex++] = bitangent.x;
+ bitangents[bitangentIndex++] = bitangent.y;
+ bitangents[bitangentIndex++] = bitangent.z;
+ bitangents[bitangentIndex++] = bitangent.x;
+ bitangents[bitangentIndex++] = bitangent.y;
+ bitangents[bitangentIndex++] = bitangent.z;
+ }
+ }
+ }
+
+ return createAttributes(vertexFormat, {
+ positions : positions,
+ normals : normals,
+ tangents : tangents,
+ bitangents : bitangents
+ });
+ }
+
+ function constructRectangle(rectangleGeometry, computedOptions) {
+ var vertexFormat = rectangleGeometry._vertexFormat;
+ var ellipsoid = rectangleGeometry._ellipsoid;
+ var height = computedOptions.height;
+ var width = computedOptions.width;
+ var northCap = computedOptions.northCap;
+ var southCap = computedOptions.southCap;
+
+ var rowStart = 0;
+ var rowEnd = height;
+ var rowHeight = height;
+ var size = 0;
+ if (northCap) {
+ rowStart = 1;
+ rowHeight -= 1;
+ size += 1;
+ }
+ if (southCap) {
+ rowEnd -= 1;
+ rowHeight -= 1;
+ size += 1;
+ }
+ size += (width * rowHeight);
+
+ var positions = (vertexFormat.position) ? new Float64Array(size * 3) : undefined;
+ var textureCoordinates = (vertexFormat.st) ? new Float32Array(size * 2) : undefined;
+
+ var posIndex = 0;
+ var stIndex = 0;
+
+ var position = positionScratch;
+ var st = stScratch;
+
+ var minX = Number.MAX_VALUE;
+ var minY = Number.MAX_VALUE;
+ var maxX = -Number.MAX_VALUE;
+ var maxY = -Number.MAX_VALUE;
+
+ for (var row = rowStart; row < rowEnd; ++row) {
+ for (var col = 0; col < width; ++col) {
+ RectangleGeometryLibrary.RectangleGeometryLibrary.computePosition(computedOptions, ellipsoid, vertexFormat.st, row, col, position, st);
+
+ positions[posIndex++] = position.x;
+ positions[posIndex++] = position.y;
+ positions[posIndex++] = position.z;
+
+ if (vertexFormat.st) {
+ textureCoordinates[stIndex++] = st.x;
+ textureCoordinates[stIndex++] = st.y;
+
+ minX = Math.min(minX, st.x);
+ minY = Math.min(minY, st.y);
+ maxX = Math.max(maxX, st.x);
+ maxY = Math.max(maxY, st.y);
+ }
+ }
+ }
+ if (northCap) {
+ RectangleGeometryLibrary.RectangleGeometryLibrary.computePosition(computedOptions, ellipsoid, vertexFormat.st, 0, 0, position, st);
+
+ positions[posIndex++] = position.x;
+ positions[posIndex++] = position.y;
+ positions[posIndex++] = position.z;
+
+ if (vertexFormat.st) {
+ textureCoordinates[stIndex++] = st.x;
+ textureCoordinates[stIndex++] = st.y;
+
+ minX = st.x;
+ minY = st.y;
+ maxX = st.x;
+ maxY = st.y;
+ }
+ }
+ if (southCap) {
+ RectangleGeometryLibrary.RectangleGeometryLibrary.computePosition(computedOptions, ellipsoid, vertexFormat.st, height - 1, 0, position, st);
+
+ positions[posIndex++] = position.x;
+ positions[posIndex++] = position.y;
+ positions[posIndex] = position.z;
+
+ if (vertexFormat.st) {
+ textureCoordinates[stIndex++] = st.x;
+ textureCoordinates[stIndex] = st.y;
+
+ minX = Math.min(minX, st.x);
+ minY = Math.min(minY, st.y);
+ maxX = Math.max(maxX, st.x);
+ maxY = Math.max(maxY, st.y);
+ }
+ }
+
+ if (vertexFormat.st && (minX < 0.0 || minY < 0.0 || maxX > 1.0 || maxY > 1.0)) {
+ for (var k = 0; k < textureCoordinates.length; k += 2) {
+ textureCoordinates[k] = (textureCoordinates[k] - minX) / (maxX - minX);
+ textureCoordinates[k + 1] = (textureCoordinates[k + 1] - minY) / (maxY - minY);
+ }
+ }
+
+ var geo = calculateAttributes(positions, vertexFormat, ellipsoid, computedOptions.tangentRotationMatrix);
+
+ var indicesSize = 6 * (width - 1) * (rowHeight - 1);
+ if (northCap) {
+ indicesSize += 3 * (width - 1);
+ }
+ if (southCap) {
+ indicesSize += 3 * (width - 1);
+ }
+ var indices = IndexDatatype.IndexDatatype.createTypedArray(size, indicesSize);
+ var index = 0;
+ var indicesIndex = 0;
+ var i;
+ for (i = 0; i < rowHeight - 1; ++i) {
+ for (var j = 0; j < width - 1; ++j) {
+ var upperLeft = index;
+ var lowerLeft = upperLeft + width;
+ var lowerRight = lowerLeft + 1;
+ var upperRight = upperLeft + 1;
+ indices[indicesIndex++] = upperLeft;
+ indices[indicesIndex++] = lowerLeft;
+ indices[indicesIndex++] = upperRight;
+ indices[indicesIndex++] = upperRight;
+ indices[indicesIndex++] = lowerLeft;
+ indices[indicesIndex++] = lowerRight;
+ ++index;
+ }
+ ++index;
+ }
+ if (northCap || southCap) {
+ var northIndex = size - 1;
+ var southIndex = size - 1;
+ if (northCap && southCap) {
+ northIndex = size - 2;
+ }
+
+ var p1;
+ var p2;
+ index = 0;
+
+ if (northCap) {
+ for (i = 0; i < width - 1; i++) {
+ p1 = index;
+ p2 = p1 + 1;
+ 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 = arrayFill.arrayFill(offsetAttribute, 1, 0, size / 2);
+ } else {
+ offsetValue = offsetAttributeValue === GeometryOffsetAttribute.GeometryOffsetAttribute.NONE ? 0 : 1;
+ offsetAttribute = arrayFill.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 = arrayFill.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 = Cartographic.Cartesian3.fromArray(wallPositions, upperLeft * 3, v1Scratch);
+ var p2 = Cartographic.Cartesian3.fromArray(wallPositions, upperRight * 3, v2Scratch);
+ if (Cartographic.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 Cartographic.Cartesian3(), new Cartographic.Cartesian3(), new Cartographic.Cartesian3(), new Cartographic.Cartesian3()];
+ var nwScratch = new Cartographic.Cartographic();
+ var stNwScratch = new Cartographic.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 BoundingSphere.Matrix3();
+ var quaternionScratch = new Transforms.Quaternion();
+ var centerScratch = new Cartographic.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);
+ BoundingSphere.Matrix3.fromQuaternion(quaternionScratch, tangentRotationMatrix);
+ } else {
+ BoundingSphere.Matrix3.clone(BoundingSphere.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 = BoundingSphere.BoundingSphere.fromRectangle3D(rectangle, ellipsoid, surfaceHeight, topBoundingSphere);
+ var bottomBS = BoundingSphere.BoundingSphere.fromRectangle3D(rectangle, ellipsoid, extrudedHeight, bottomBoundingSphere);
+ boundingSphere = BoundingSphere.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;
+ arrayFill.arrayFill(applyOffset, offsetValue);
+ geometry.attributes.applyOffset = new GeometryAttribute.GeometryAttribute({
+ componentDatatype : ComponentDatatype.ComponentDatatype.UNSIGNED_BYTE,
+ componentsPerAttribute : 1,
+ values: applyOffset
+ });
+ }
+
+ boundingSphere = BoundingSphere.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 Cartographic.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;
+
+});
--
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