/** * 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(['./when-4bbc8319', './Transforms-8b90e17c', './Matrix2-265d9610', './RuntimeError-5b082e8f', './ComponentDatatype-aad54330', './GeometryAttribute-4bcb785f', './GeometryAttributes-7827a6c2', './VertexFormat-07539138', './combine-e9466e32', './WebGLConstants-508b9636'], (function (when, Transforms, Matrix2, RuntimeError, ComponentDatatype, GeometryAttribute, GeometryAttributes, VertexFormat, combine, WebGLConstants) { 'use strict'; /** * Describes geometry representing a plane centered at the origin, with a unit width and length. * * @alias PlaneGeometry * @constructor * * @param {Object} [options] Object with the following properties: * @param {VertexFormat} [options.vertexFormat=VertexFormat.DEFAULT] The vertex attributes to be computed. * * @example * const planeGeometry = new Cesium.PlaneGeometry({ * vertexFormat : Cesium.VertexFormat.POSITION_ONLY * }); */ function PlaneGeometry(options) { options = when.defaultValue(options, when.defaultValue.EMPTY_OBJECT); const vertexFormat = when.defaultValue(options.vertexFormat, VertexFormat.VertexFormat.DEFAULT); this._vertexFormat = vertexFormat; this._workerName = "createPlaneGeometry"; } /** * The number of elements used to pack the object into an array. * @type {Number} */ PlaneGeometry.packedLength = VertexFormat.VertexFormat.packedLength; /** * Stores the provided instance into the provided array. * * @param {PlaneGeometry} 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 */ PlaneGeometry.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); VertexFormat.VertexFormat.pack(value._vertexFormat, array, startingIndex); return array; }; const scratchVertexFormat = new VertexFormat.VertexFormat(); const scratchOptions = { vertexFormat: scratchVertexFormat, }; /** * 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 {PlaneGeometry} [result] The object into which to store the result. * @returns {PlaneGeometry} The modified result parameter or a new PlaneGeometry instance if one was not provided. */ PlaneGeometry.unpack = function (array, startingIndex, result) { //>>includeStart('debug', pragmas.debug); RuntimeError.Check.defined("array", array); //>>includeEnd('debug'); startingIndex = when.defaultValue(startingIndex, 0); const vertexFormat = VertexFormat.VertexFormat.unpack( array, startingIndex, scratchVertexFormat ); if (!when.defined(result)) { return new PlaneGeometry(scratchOptions); } result._vertexFormat = VertexFormat.VertexFormat.clone(vertexFormat, result._vertexFormat); return result; }; const min = new Matrix2.Cartesian3(-0.5, -0.5, 0.0); const max = new Matrix2.Cartesian3(0.5, 0.5, 0.0); /** * Computes the geometric representation of a plane, including its vertices, indices, and a bounding sphere. * * @param {PlaneGeometry} planeGeometry A description of the plane. * @returns {Geometry|undefined} The computed vertices and indices. */ PlaneGeometry.createGeometry = function (planeGeometry) { const vertexFormat = planeGeometry._vertexFormat; const attributes = new GeometryAttributes.GeometryAttributes(); let indices; let positions; if (vertexFormat.position) { // 4 corner points. Duplicated 3 times each for each incident edge/face. positions = new Float64Array(4 * 3); // +z face positions[0] = min.x; positions[1] = min.y; positions[2] = 0.0; positions[3] = max.x; positions[4] = min.y; positions[5] = 0.0; positions[6] = max.x; positions[7] = max.y; positions[8] = 0.0; positions[9] = min.x; positions[10] = max.y; positions[11] = 0.0; attributes.position = new GeometryAttribute.GeometryAttribute({ componentDatatype: ComponentDatatype.ComponentDatatype.DOUBLE, componentsPerAttribute: 3, values: positions, }); if (vertexFormat.normal) { const normals = new Float32Array(4 * 3); // +z face normals[0] = 0.0; normals[1] = 0.0; normals[2] = 1.0; normals[3] = 0.0; normals[4] = 0.0; normals[5] = 1.0; normals[6] = 0.0; normals[7] = 0.0; normals[8] = 1.0; normals[9] = 0.0; normals[10] = 0.0; normals[11] = 1.0; attributes.normal = new GeometryAttribute.GeometryAttribute({ componentDatatype: ComponentDatatype.ComponentDatatype.FLOAT, componentsPerAttribute: 3, values: normals, }); } if (vertexFormat.st) { const texCoords = new Float32Array(4 * 2); // +z face texCoords[0] = 0.0; texCoords[1] = 0.0; texCoords[2] = 1.0; texCoords[3] = 0.0; texCoords[4] = 1.0; texCoords[5] = 1.0; texCoords[6] = 0.0; texCoords[7] = 1.0; attributes.st = new GeometryAttribute.GeometryAttribute({ componentDatatype: ComponentDatatype.ComponentDatatype.FLOAT, componentsPerAttribute: 2, values: texCoords, }); } if (vertexFormat.tangent) { const tangents = new Float32Array(4 * 3); // +z face tangents[0] = 1.0; tangents[1] = 0.0; tangents[2] = 0.0; tangents[3] = 1.0; tangents[4] = 0.0; tangents[5] = 0.0; tangents[6] = 1.0; tangents[7] = 0.0; tangents[8] = 0.0; tangents[9] = 1.0; tangents[10] = 0.0; tangents[11] = 0.0; attributes.tangent = new GeometryAttribute.GeometryAttribute({ componentDatatype: ComponentDatatype.ComponentDatatype.FLOAT, componentsPerAttribute: 3, values: tangents, }); } if (vertexFormat.bitangent) { const bitangents = new Float32Array(4 * 3); // +z face bitangents[0] = 0.0; bitangents[1] = 1.0; bitangents[2] = 0.0; bitangents[3] = 0.0; bitangents[4] = 1.0; bitangents[5] = 0.0; bitangents[6] = 0.0; bitangents[7] = 1.0; bitangents[8] = 0.0; bitangents[9] = 0.0; bitangents[10] = 1.0; bitangents[11] = 0.0; attributes.bitangent = new GeometryAttribute.GeometryAttribute({ componentDatatype: ComponentDatatype.ComponentDatatype.FLOAT, componentsPerAttribute: 3, values: bitangents, }); } // 2 triangles indices = new Uint16Array(2 * 3); // +z face indices[0] = 0; indices[1] = 1; indices[2] = 2; indices[3] = 0; indices[4] = 2; indices[5] = 3; } return new GeometryAttribute.Geometry({ attributes: attributes, indices: indices, primitiveType: GeometryAttribute.PrimitiveType.TRIANGLES, boundingSphere: new Transforms.BoundingSphere(Matrix2.Cartesian3.ZERO, Math.sqrt(2.0)), }); }; function createPlaneGeometry(planeGeometry, offset) { if (when.defined(offset)) { planeGeometry = PlaneGeometry.unpack(planeGeometry, offset); } return PlaneGeometry.createGeometry(planeGeometry); } return createPlaneGeometry; })); //# sourceMappingURL=createPlaneGeometry.js.map