541 lines
19 KiB
JavaScript
541 lines
19 KiB
JavaScript
|
/**
|
||
|
|
* 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/main/LICENSE.md for full licensing details.
|
||
|
|
*/
|
||
|
|
|
||
|
|
define(['./arrayRemoveDuplicates-65de6756', './BoundingRectangle-8f2409a1', './Transforms-8b90e17c', './Matrix2-265d9610', './RuntimeError-5b082e8f', './ComponentDatatype-aad54330', './CoplanarPolygonGeometryLibrary-b973f66f', './when-4bbc8319', './GeometryAttribute-4bcb785f', './GeometryAttributes-7827a6c2', './GeometryInstance-d57564f8', './GeometryPipeline-e93f6439', './IndexDatatype-6739e544', './PolygonGeometryLibrary-e329b948', './PolygonPipeline-5fd67ae2', './VertexFormat-07539138', './combine-e9466e32', './WebGLConstants-508b9636', './OrientedBoundingBox-1e433348', './EllipsoidTangentPlane-f1a69a20', './AxisAlignedBoundingBox-2a0ca7ef', './IntersectionTests-596e31ec', './Plane-616c9c0a', './AttributeCompression-442278a0', './EncodedCartesian3-da8f96bc', './ArcType-fc72c06c', './EllipsoidRhumbLine-d09d563f'], (function (arrayRemoveDuplicates, BoundingRectangle, Transforms, Matrix2, RuntimeError, ComponentDatatype, CoplanarPolygonGeometryLibrary, when, GeometryAttribute, GeometryAttributes, GeometryInstance, GeometryPipeline, IndexDatatype, PolygonGeometryLibrary, PolygonPipeline, VertexFormat, combine, WebGLConstants, OrientedBoundingBox, EllipsoidTangentPlane, AxisAlignedBoundingBox, IntersectionTests, Plane, AttributeCompression, EncodedCartesian3, ArcType, EllipsoidRhumbLine) { 'use strict';
|
||
|
|
|
||
|
|
const scratchPosition = new Matrix2.Cartesian3();
|
||
|
|
const scratchBR = new BoundingRectangle.BoundingRectangle();
|
||
|
|
const stScratch = new Matrix2.Cartesian2();
|
||
|
|
const textureCoordinatesOrigin = new Matrix2.Cartesian2();
|
||
|
|
const scratchNormal = new Matrix2.Cartesian3();
|
||
|
|
const scratchTangent = new Matrix2.Cartesian3();
|
||
|
|
const scratchBitangent = new Matrix2.Cartesian3();
|
||
|
|
const centerScratch = new Matrix2.Cartesian3();
|
||
|
|
const axis1Scratch = new Matrix2.Cartesian3();
|
||
|
|
const axis2Scratch = new Matrix2.Cartesian3();
|
||
|
|
const quaternionScratch = new Transforms.Quaternion();
|
||
|
|
const textureMatrixScratch = new Matrix2.Matrix3();
|
||
|
|
const tangentRotationScratch = new Matrix2.Matrix3();
|
||
|
|
const surfaceNormalScratch = new Matrix2.Cartesian3();
|
||
|
|
|
||
|
|
function createGeometryFromPolygon(
|
||
|
|
polygon,
|
||
|
|
vertexFormat,
|
||
|
|
boundingRectangle,
|
||
|
|
stRotation,
|
||
|
|
projectPointTo2D,
|
||
|
|
normal,
|
||
|
|
tangent,
|
||
|
|
bitangent
|
||
|
|
) {
|
||
|
|
const positions = polygon.positions;
|
||
|
|
let indices = PolygonPipeline.PolygonPipeline.triangulate(polygon.positions2D, polygon.holes);
|
||
|
|
|
||
|
|
/* If polygon is completely unrenderable, just use the first three vertices */
|
||
|
|
if (indices.length < 3) {
|
||
|
|
indices = [0, 1, 2];
|
||
|
|
}
|
||
|
|
|
||
|
|
const newIndices = IndexDatatype.IndexDatatype.createTypedArray(
|
||
|
|
positions.length,
|
||
|
|
indices.length
|
||
|
|
);
|
||
|
|
newIndices.set(indices);
|
||
|
|
|
||
|
|
let textureMatrix = textureMatrixScratch;
|
||
|
|
if (stRotation !== 0.0) {
|
||
|
|
let rotation = Transforms.Quaternion.fromAxisAngle(
|
||
|
|
normal,
|
||
|
|
stRotation,
|
||
|
|
quaternionScratch
|
||
|
|
);
|
||
|
|
textureMatrix = Matrix2.Matrix3.fromQuaternion(rotation, textureMatrix);
|
||
|
|
|
||
|
|
if (vertexFormat.tangent || vertexFormat.bitangent) {
|
||
|
|
rotation = Transforms.Quaternion.fromAxisAngle(
|
||
|
|
normal,
|
||
|
|
-stRotation,
|
||
|
|
quaternionScratch
|
||
|
|
);
|
||
|
|
const tangentRotation = Matrix2.Matrix3.fromQuaternion(
|
||
|
|
rotation,
|
||
|
|
tangentRotationScratch
|
||
|
|
);
|
||
|
|
|
||
|
|
tangent = Matrix2.Cartesian3.normalize(
|
||
|
|
Matrix2.Matrix3.multiplyByVector(tangentRotation, tangent, tangent),
|
||
|
|
tangent
|
||
|
|
);
|
||
|
|
if (vertexFormat.bitangent) {
|
||
|
|
bitangent = Matrix2.Cartesian3.normalize(
|
||
|
|
Matrix2.Cartesian3.cross(normal, tangent, bitangent),
|
||
|
|
bitangent
|
||
|
|
);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
} else {
|
||
|
|
textureMatrix = Matrix2.Matrix3.clone(Matrix2.Matrix3.IDENTITY, textureMatrix);
|
||
|
|
}
|
||
|
|
|
||
|
|
const stOrigin = textureCoordinatesOrigin;
|
||
|
|
if (vertexFormat.st) {
|
||
|
|
stOrigin.x = boundingRectangle.x;
|
||
|
|
stOrigin.y = boundingRectangle.y;
|
||
|
|
}
|
||
|
|
|
||
|
|
const length = positions.length;
|
||
|
|
const size = length * 3;
|
||
|
|
const flatPositions = new Float64Array(size);
|
||
|
|
const normals = vertexFormat.normal ? new Float32Array(size) : undefined;
|
||
|
|
const tangents = vertexFormat.tangent ? new Float32Array(size) : undefined;
|
||
|
|
const bitangents = vertexFormat.bitangent
|
||
|
|
? new Float32Array(size)
|
||
|
|
: undefined;
|
||
|
|
const textureCoordinates = vertexFormat.st
|
||
|
|
? new Float32Array(length * 2)
|
||
|
|
: undefined;
|
||
|
|
|
||
|
|
let positionIndex = 0;
|
||
|
|
let normalIndex = 0;
|
||
|
|
let bitangentIndex = 0;
|
||
|
|
let tangentIndex = 0;
|
||
|
|
let stIndex = 0;
|
||
|
|
|
||
|
|
for (let i = 0; i < length; i++) {
|
||
|
|
const position = positions[i];
|
||
|
|
flatPositions[positionIndex++] = position.x;
|
||
|
|
flatPositions[positionIndex++] = position.y;
|
||
|
|
flatPositions[positionIndex++] = position.z;
|
||
|
|
|
||
|
|
if (vertexFormat.st) {
|
||
|
|
const p = Matrix2.Matrix3.multiplyByVector(
|
||
|
|
textureMatrix,
|
||
|
|
position,
|
||
|
|
scratchPosition
|
||
|
|
);
|
||
|
|
const st = projectPointTo2D(p, stScratch);
|
||
|
|
Matrix2.Cartesian2.subtract(st, stOrigin, st);
|
||
|
|
|
||
|
|
const stx = ComponentDatatype.CesiumMath.clamp(st.x / boundingRectangle.width, 0, 1);
|
||
|
|
const sty = ComponentDatatype.CesiumMath.clamp(st.y / boundingRectangle.height, 0, 1);
|
||
|
|
textureCoordinates[stIndex++] = stx;
|
||
|
|
textureCoordinates[stIndex++] = sty;
|
||
|
|
}
|
||
|
|
|
||
|
|
if (vertexFormat.normal) {
|
||
|
|
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;
|
||
|
|
}
|
||
|
|
|
||
|
|
if (vertexFormat.bitangent) {
|
||
|
|
bitangents[bitangentIndex++] = bitangent.x;
|
||
|
|
bitangents[bitangentIndex++] = bitangent.y;
|
||
|
|
bitangents[bitangentIndex++] = bitangent.z;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
const attributes = new GeometryAttributes.GeometryAttributes();
|
||
|
|
|
||
|
|
if (vertexFormat.position) {
|
||
|
|
attributes.position = new GeometryAttribute.GeometryAttribute({
|
||
|
|
componentDatatype: ComponentDatatype.ComponentDatatype.DOUBLE,
|
||
|
|
componentsPerAttribute: 3,
|
||
|
|
values: flatPositions,
|
||
|
|
});
|
||
|
|
}
|
||
|
|
|
||
|
|
if (vertexFormat.normal) {
|
||
|
|
attributes.normal = new GeometryAttribute.GeometryAttribute({
|
||
|
|
componentDatatype: ComponentDatatype.ComponentDatatype.FLOAT,
|
||
|
|
componentsPerAttribute: 3,
|
||
|
|
values: normals,
|
||
|
|
});
|
||
|
|
}
|
||
|
|
|
||
|
|
if (vertexFormat.tangent) {
|
||
|
|
attributes.tangent = new GeometryAttribute.GeometryAttribute({
|
||
|
|
componentDatatype: ComponentDatatype.ComponentDatatype.FLOAT,
|
||
|
|
componentsPerAttribute: 3,
|
||
|
|
values: tangents,
|
||
|
|
});
|
||
|
|
}
|
||
|
|
|
||
|
|
if (vertexFormat.bitangent) {
|
||
|
|
attributes.bitangent = new GeometryAttribute.GeometryAttribute({
|
||
|
|
componentDatatype: ComponentDatatype.ComponentDatatype.FLOAT,
|
||
|
|
componentsPerAttribute: 3,
|
||
|
|
values: bitangents,
|
||
|
|
});
|
||
|
|
}
|
||
|
|
|
||
|
|
if (vertexFormat.st) {
|
||
|
|
attributes.st = new GeometryAttribute.GeometryAttribute({
|
||
|
|
componentDatatype: ComponentDatatype.ComponentDatatype.FLOAT,
|
||
|
|
componentsPerAttribute: 2,
|
||
|
|
values: textureCoordinates,
|
||
|
|
});
|
||
|
|
}
|
||
|
|
|
||
|
|
return new GeometryAttribute.Geometry({
|
||
|
|
attributes: attributes,
|
||
|
|
indices: newIndices,
|
||
|
|
primitiveType: GeometryAttribute.PrimitiveType.TRIANGLES,
|
||
|
|
});
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* A description of a polygon composed of arbitrary coplanar positions.
|
||
|
|
*
|
||
|
|
* @alias CoplanarPolygonGeometry
|
||
|
|
* @constructor
|
||
|
|
*
|
||
|
|
* @param {Object} options Object with the following properties:
|
||
|
|
* @param {PolygonHierarchy} options.polygonHierarchy A polygon hierarchy that can include holes.
|
||
|
|
* @param {Number} [options.stRotation=0.0] The rotation of the texture coordinates, in radians. A positive rotation is counter-clockwise.
|
||
|
|
* @param {VertexFormat} [options.vertexFormat=VertexFormat.DEFAULT] The vertex attributes to be computed.
|
||
|
|
* @param {Ellipsoid} [options.ellipsoid=Ellipsoid.WGS84] The ellipsoid to be used as a reference.
|
||
|
|
*
|
||
|
|
* @example
|
||
|
|
* const polygonGeometry = new Cesium.CoplanarPolygonGeometry({
|
||
|
|
* polygonHierarchy: new Cesium.PolygonHierarchy(
|
||
|
|
* Cesium.Cartesian3.fromDegreesArrayHeights([
|
||
|
|
* -90.0, 30.0, 0.0,
|
||
|
|
* -90.0, 30.0, 300000.0,
|
||
|
|
* -80.0, 30.0, 300000.0,
|
||
|
|
* -80.0, 30.0, 0.0
|
||
|
|
* ]))
|
||
|
|
* });
|
||
|
|
*
|
||
|
|
*/
|
||
|
|
function CoplanarPolygonGeometry(options) {
|
||
|
|
options = when.defaultValue(options, when.defaultValue.EMPTY_OBJECT);
|
||
|
|
const polygonHierarchy = options.polygonHierarchy;
|
||
|
|
//>>includeStart('debug', pragmas.debug);
|
||
|
|
RuntimeError.Check.defined("options.polygonHierarchy", polygonHierarchy);
|
||
|
|
//>>includeEnd('debug');
|
||
|
|
|
||
|
|
const vertexFormat = when.defaultValue(options.vertexFormat, VertexFormat.VertexFormat.DEFAULT);
|
||
|
|
this._vertexFormat = VertexFormat.VertexFormat.clone(vertexFormat);
|
||
|
|
this._polygonHierarchy = polygonHierarchy;
|
||
|
|
this._stRotation = when.defaultValue(options.stRotation, 0.0);
|
||
|
|
this._ellipsoid = Matrix2.Ellipsoid.clone(
|
||
|
|
when.defaultValue(options.ellipsoid, Matrix2.Ellipsoid.WGS84)
|
||
|
|
);
|
||
|
|
this._workerName = "createCoplanarPolygonGeometry";
|
||
|
|
|
||
|
|
/**
|
||
|
|
* The number of elements used to pack the object into an array.
|
||
|
|
* @type {Number}
|
||
|
|
*/
|
||
|
|
this.packedLength =
|
||
|
|
PolygonGeometryLibrary.PolygonGeometryLibrary.computeHierarchyPackedLength(polygonHierarchy) +
|
||
|
|
VertexFormat.VertexFormat.packedLength +
|
||
|
|
Matrix2.Ellipsoid.packedLength +
|
||
|
|
2;
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* A description of a coplanar polygon from an array of positions.
|
||
|
|
*
|
||
|
|
* @param {Object} options Object with the following properties:
|
||
|
|
* @param {Cartesian3[]} options.positions An array of positions that defined the corner points of the polygon.
|
||
|
|
* @param {VertexFormat} [options.vertexFormat=VertexFormat.DEFAULT] The vertex attributes to be computed.
|
||
|
|
* @param {Number} [options.stRotation=0.0] The rotation of the texture coordinates, in radians. A positive rotation is counter-clockwise.
|
||
|
|
* @param {Ellipsoid} [options.ellipsoid=Ellipsoid.WGS84] The ellipsoid to be used as a reference.
|
||
|
|
* @returns {CoplanarPolygonGeometry}
|
||
|
|
*
|
||
|
|
* @example
|
||
|
|
* // create a polygon from points
|
||
|
|
* const polygon = Cesium.CoplanarPolygonGeometry.fromPositions({
|
||
|
|
* positions : Cesium.Cartesian3.fromDegreesArray([
|
||
|
|
* -72.0, 40.0,
|
||
|
|
* -70.0, 35.0,
|
||
|
|
* -75.0, 30.0,
|
||
|
|
* -70.0, 30.0,
|
||
|
|
* -68.0, 40.0
|
||
|
|
* ])
|
||
|
|
* });
|
||
|
|
* const geometry = Cesium.PolygonGeometry.createGeometry(polygon);
|
||
|
|
*
|
||
|
|
* @see PolygonGeometry#createGeometry
|
||
|
|
*/
|
||
|
|
CoplanarPolygonGeometry.fromPositions = function (options) {
|
||
|
|
options = when.defaultValue(options, when.defaultValue.EMPTY_OBJECT);
|
||
|
|
|
||
|
|
//>>includeStart('debug', pragmas.debug);
|
||
|
|
RuntimeError.Check.defined("options.positions", options.positions);
|
||
|
|
//>>includeEnd('debug');
|
||
|
|
|
||
|
|
const newOptions = {
|
||
|
|
polygonHierarchy: {
|
||
|
|
positions: options.positions,
|
||
|
|
},
|
||
|
|
vertexFormat: options.vertexFormat,
|
||
|
|
stRotation: options.stRotation,
|
||
|
|
ellipsoid: options.ellipsoid,
|
||
|
|
};
|
||
|
|
return new CoplanarPolygonGeometry(newOptions);
|
||
|
|
};
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Stores the provided instance into the provided array.
|
||
|
|
*
|
||
|
|
* @param {CoplanarPolygonGeometry} 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
|
||
|
|
*/
|
||
|
|
CoplanarPolygonGeometry.pack = function (value, array, startingIndex) {
|
||
|
|
//>>includeStart('debug', pragmas.debug);
|
||
|
|
RuntimeError.Check.typeOf.object("value", value);
|
||
|
|
RuntimeError.Check.defined("array", array);
|
||
|
|
//>>includeEnd('debug');
|
||
|
|
|
||
|
|
startingIndex = when.defaultValue(startingIndex, 0);
|
||
|
|
|
||
|
|
startingIndex = PolygonGeometryLibrary.PolygonGeometryLibrary.packPolygonHierarchy(
|
||
|
|
value._polygonHierarchy,
|
||
|
|
array,
|
||
|
|
startingIndex
|
||
|
|
);
|
||
|
|
|
||
|
|
Matrix2.Ellipsoid.pack(value._ellipsoid, array, startingIndex);
|
||
|
|
startingIndex += Matrix2.Ellipsoid.packedLength;
|
||
|
|
|
||
|
|
VertexFormat.VertexFormat.pack(value._vertexFormat, array, startingIndex);
|
||
|
|
startingIndex += VertexFormat.VertexFormat.packedLength;
|
||
|
|
|
||
|
|
array[startingIndex++] = value._stRotation;
|
||
|
|
array[startingIndex] = value.packedLength;
|
||
|
|
|
||
|
|
return array;
|
||
|
|
};
|
||
|
|
|
||
|
|
const scratchEllipsoid = Matrix2.Ellipsoid.clone(Matrix2.Ellipsoid.UNIT_SPHERE);
|
||
|
|
const scratchVertexFormat = new VertexFormat.VertexFormat();
|
||
|
|
const scratchOptions = {
|
||
|
|
polygonHierarchy: {},
|
||
|
|
};
|
||
|
|
/**
|
||
|
|
* 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 {CoplanarPolygonGeometry} [result] The object into which to store the result.
|
||
|
|
* @returns {CoplanarPolygonGeometry} The modified result parameter or a new CoplanarPolygonGeometry instance if one was not provided.
|
||
|
|
*/
|
||
|
|
CoplanarPolygonGeometry.unpack = function (array, startingIndex, result) {
|
||
|
|
//>>includeStart('debug', pragmas.debug);
|
||
|
|
RuntimeError.Check.defined("array", array);
|
||
|
|
//>>includeEnd('debug');
|
||
|
|
|
||
|
|
startingIndex = when.defaultValue(startingIndex, 0);
|
||
|
|
|
||
|
|
const polygonHierarchy = PolygonGeometryLibrary.PolygonGeometryLibrary.unpackPolygonHierarchy(
|
||
|
|
array,
|
||
|
|
startingIndex
|
||
|
|
);
|
||
|
|
startingIndex = polygonHierarchy.startingIndex;
|
||
|
|
delete polygonHierarchy.startingIndex;
|
||
|
|
|
||
|
|
const ellipsoid = Matrix2.Ellipsoid.unpack(array, startingIndex, scratchEllipsoid);
|
||
|
|
startingIndex += Matrix2.Ellipsoid.packedLength;
|
||
|
|
|
||
|
|
const vertexFormat = VertexFormat.VertexFormat.unpack(
|
||
|
|
array,
|
||
|
|
startingIndex,
|
||
|
|
scratchVertexFormat
|
||
|
|
);
|
||
|
|
startingIndex += VertexFormat.VertexFormat.packedLength;
|
||
|
|
|
||
|
|
const stRotation = array[startingIndex++];
|
||
|
|
const packedLength = array[startingIndex];
|
||
|
|
|
||
|
|
if (!when.defined(result)) {
|
||
|
|
result = new CoplanarPolygonGeometry(scratchOptions);
|
||
|
|
}
|
||
|
|
|
||
|
|
result._polygonHierarchy = polygonHierarchy;
|
||
|
|
result._ellipsoid = Matrix2.Ellipsoid.clone(ellipsoid, result._ellipsoid);
|
||
|
|
result._vertexFormat = VertexFormat.VertexFormat.clone(vertexFormat, result._vertexFormat);
|
||
|
|
result._stRotation = stRotation;
|
||
|
|
result.packedLength = packedLength;
|
||
|
|
return result;
|
||
|
|
};
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Computes the geometric representation of an arbitrary coplanar polygon, including its vertices, indices, and a bounding sphere.
|
||
|
|
*
|
||
|
|
* @param {CoplanarPolygonGeometry} polygonGeometry A description of the polygon.
|
||
|
|
* @returns {Geometry|undefined} The computed vertices and indices.
|
||
|
|
*/
|
||
|
|
CoplanarPolygonGeometry.createGeometry = function (polygonGeometry) {
|
||
|
|
const vertexFormat = polygonGeometry._vertexFormat;
|
||
|
|
const polygonHierarchy = polygonGeometry._polygonHierarchy;
|
||
|
|
const stRotation = polygonGeometry._stRotation;
|
||
|
|
|
||
|
|
let outerPositions = polygonHierarchy.positions;
|
||
|
|
outerPositions = arrayRemoveDuplicates.arrayRemoveDuplicates(
|
||
|
|
outerPositions,
|
||
|
|
Matrix2.Cartesian3.equalsEpsilon,
|
||
|
|
true
|
||
|
|
);
|
||
|
|
if (outerPositions.length < 3) {
|
||
|
|
return;
|
||
|
|
}
|
||
|
|
|
||
|
|
let normal = scratchNormal;
|
||
|
|
let tangent = scratchTangent;
|
||
|
|
let bitangent = scratchBitangent;
|
||
|
|
let axis1 = axis1Scratch;
|
||
|
|
const axis2 = axis2Scratch;
|
||
|
|
|
||
|
|
const validGeometry = CoplanarPolygonGeometryLibrary.CoplanarPolygonGeometryLibrary.computeProjectTo2DArguments(
|
||
|
|
outerPositions,
|
||
|
|
centerScratch,
|
||
|
|
axis1,
|
||
|
|
axis2
|
||
|
|
);
|
||
|
|
if (!validGeometry) {
|
||
|
|
return undefined;
|
||
|
|
}
|
||
|
|
|
||
|
|
normal = Matrix2.Cartesian3.cross(axis1, axis2, normal);
|
||
|
|
normal = Matrix2.Cartesian3.normalize(normal, normal);
|
||
|
|
|
||
|
|
if (
|
||
|
|
!Matrix2.Cartesian3.equalsEpsilon(
|
||
|
|
centerScratch,
|
||
|
|
Matrix2.Cartesian3.ZERO,
|
||
|
|
ComponentDatatype.CesiumMath.EPSILON6
|
||
|
|
)
|
||
|
|
) {
|
||
|
|
const surfaceNormal = polygonGeometry._ellipsoid.geodeticSurfaceNormal(
|
||
|
|
centerScratch,
|
||
|
|
surfaceNormalScratch
|
||
|
|
);
|
||
|
|
if (Matrix2.Cartesian3.dot(normal, surfaceNormal) < 0) {
|
||
|
|
normal = Matrix2.Cartesian3.negate(normal, normal);
|
||
|
|
axis1 = Matrix2.Cartesian3.negate(axis1, axis1);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
const projectPoints = CoplanarPolygonGeometryLibrary.CoplanarPolygonGeometryLibrary.createProjectPointsTo2DFunction(
|
||
|
|
centerScratch,
|
||
|
|
axis1,
|
||
|
|
axis2
|
||
|
|
);
|
||
|
|
const projectPoint = CoplanarPolygonGeometryLibrary.CoplanarPolygonGeometryLibrary.createProjectPointTo2DFunction(
|
||
|
|
centerScratch,
|
||
|
|
axis1,
|
||
|
|
axis2
|
||
|
|
);
|
||
|
|
|
||
|
|
if (vertexFormat.tangent) {
|
||
|
|
tangent = Matrix2.Cartesian3.clone(axis1, tangent);
|
||
|
|
}
|
||
|
|
if (vertexFormat.bitangent) {
|
||
|
|
bitangent = Matrix2.Cartesian3.clone(axis2, bitangent);
|
||
|
|
}
|
||
|
|
|
||
|
|
const results = PolygonGeometryLibrary.PolygonGeometryLibrary.polygonsFromHierarchy(
|
||
|
|
polygonHierarchy,
|
||
|
|
projectPoints,
|
||
|
|
false
|
||
|
|
);
|
||
|
|
const hierarchy = results.hierarchy;
|
||
|
|
const polygons = results.polygons;
|
||
|
|
|
||
|
|
if (hierarchy.length === 0) {
|
||
|
|
return;
|
||
|
|
}
|
||
|
|
outerPositions = hierarchy[0].outerRing;
|
||
|
|
|
||
|
|
const boundingSphere = Transforms.BoundingSphere.fromPoints(outerPositions);
|
||
|
|
const boundingRectangle = PolygonGeometryLibrary.PolygonGeometryLibrary.computeBoundingRectangle(
|
||
|
|
normal,
|
||
|
|
projectPoint,
|
||
|
|
outerPositions,
|
||
|
|
stRotation,
|
||
|
|
scratchBR
|
||
|
|
);
|
||
|
|
|
||
|
|
const geometries = [];
|
||
|
|
for (let i = 0; i < polygons.length; i++) {
|
||
|
|
const geometryInstance = new GeometryInstance.GeometryInstance({
|
||
|
|
geometry: createGeometryFromPolygon(
|
||
|
|
polygons[i],
|
||
|
|
vertexFormat,
|
||
|
|
boundingRectangle,
|
||
|
|
stRotation,
|
||
|
|
projectPoint,
|
||
|
|
normal,
|
||
|
|
tangent,
|
||
|
|
bitangent
|
||
|
|
),
|
||
|
|
});
|
||
|
|
|
||
|
|
geometries.push(geometryInstance);
|
||
|
|
}
|
||
|
|
|
||
|
|
const geometry = GeometryPipeline.GeometryPipeline.combineInstances(geometries)[0];
|
||
|
|
geometry.attributes.position.values = new Float64Array(
|
||
|
|
geometry.attributes.position.values
|
||
|
|
);
|
||
|
|
geometry.indices = IndexDatatype.IndexDatatype.createTypedArray(
|
||
|
|
geometry.attributes.position.values.length / 3,
|
||
|
|
geometry.indices
|
||
|
|
);
|
||
|
|
|
||
|
|
const attributes = geometry.attributes;
|
||
|
|
if (!vertexFormat.position) {
|
||
|
|
delete attributes.position;
|
||
|
|
}
|
||
|
|
return new GeometryAttribute.Geometry({
|
||
|
|
attributes: attributes,
|
||
|
|
indices: geometry.indices,
|
||
|
|
primitiveType: geometry.primitiveType,
|
||
|
|
boundingSphere: boundingSphere,
|
||
|
|
});
|
||
|
|
};
|
||
|
|
|
||
|
|
function createCoplanarPolygonGeometry(polygonGeometry, offset) {
|
||
|
|
if (when.defined(offset)) {
|
||
|
|
polygonGeometry = CoplanarPolygonGeometry.unpack(polygonGeometry, offset);
|
||
|
|
}
|
||
|
|
return CoplanarPolygonGeometry.createGeometry(polygonGeometry);
|
||
|
|
}
|
||
|
|
|
||
|
|
return createCoplanarPolygonGeometry;
|
||
|
|
|
||
|
|
}));
|
||
|
|
//# sourceMappingURL=createCoplanarPolygonGeometry.js.map
|