914 lines
36 KiB
JavaScript
914 lines
36 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/master/LICENSE.md for full licensing details.
|
||
*/
|
||
define(['exports', './when-8d13db60', './Check-70bec281', './Cartographic-f2a06374', './BoundingSphere-d018a565', './ComponentDatatype-5862616f', './GeometryAttribute-773da12d', './PrimitiveType-97893bc7', './GeometryAttributes-aacecde6', './arrayFill-9766fb2e', './GeometryOffsetAttribute-999fc023', './VertexFormat-fe4db402'], function (exports, when, Check, Cartographic, BoundingSphere, ComponentDatatype, GeometryAttribute, PrimitiveType, GeometryAttributes, arrayFill, GeometryOffsetAttribute, VertexFormat) { 'use strict';
|
||
|
||
var diffScratch = new Cartographic.Cartesian3();
|
||
|
||
/**
|
||
* Describes a cube centered at the origin.
|
||
*
|
||
* @alias BoxGeometry
|
||
* @constructor
|
||
*
|
||
* @param {Object} options Object with the following properties:
|
||
* @param {Cartesian3} options.minimum The minimum x, y, and z coordinates of the box.
|
||
* @param {Cartesian3} options.maximum The maximum x, y, and z coordinates of the box.
|
||
* @param {VertexFormat} [options.vertexFormat=VertexFormat.DEFAULT] The vertex attributes to be computed.
|
||
*
|
||
* @see BoxGeometry.fromDimensions
|
||
* @see BoxGeometry.createGeometry
|
||
* @see Packable
|
||
*
|
||
* @demo {@link https://sandcastle.cesium.com/index.html?src=Box.html|Cesium Sandcastle Box Demo}
|
||
*
|
||
* @example
|
||
* var box = new Cesium.BoxGeometry({
|
||
* vertexFormat : Cesium.VertexFormat.POSITION_ONLY,
|
||
* maximum : new Cesium.Cartesian3(250000.0, 250000.0, 250000.0),
|
||
* minimum : new Cesium.Cartesian3(-250000.0, -250000.0, -250000.0)
|
||
* });
|
||
* var geometry = Cesium.BoxGeometry.createGeometry(box);
|
||
*/
|
||
function BoxGeometry(options) {
|
||
options = when.defaultValue(options, when.defaultValue.EMPTY_OBJECT);
|
||
|
||
var min = options.minimum;
|
||
var max = options.maximum;
|
||
|
||
//>>includeStart('debug', pragmas.debug);
|
||
Check.Check.typeOf.object('min', min);
|
||
Check.Check.typeOf.object('max', max);
|
||
if (when.defined(options.offsetAttribute) && options.offsetAttribute === GeometryOffsetAttribute.GeometryOffsetAttribute.TOP) {
|
||
throw new Check.DeveloperError('GeometryOffsetAttribute.TOP is not a supported options.offsetAttribute for this geometry.');
|
||
}
|
||
//>>includeEnd('debug');
|
||
|
||
var vertexFormat = when.defaultValue(options.vertexFormat, VertexFormat.VertexFormat.DEFAULT);
|
||
|
||
this._minimum = Cartographic.Cartesian3.clone(min);
|
||
this._maximum = Cartographic.Cartesian3.clone(max);
|
||
this._vertexFormat = vertexFormat;
|
||
this._offsetAttribute = options.offsetAttribute;
|
||
this._workerName = 'createBoxGeometry';
|
||
}
|
||
|
||
/**
|
||
* Creates a cube centered at the origin given its dimensions.
|
||
*
|
||
* @param {Object} options Object with the following properties:
|
||
* @param {Cartesian3} options.dimensions The width, depth, and height of the box stored in the x, y, and z coordinates of the <code>Cartesian3</code>, respectively.
|
||
* @param {VertexFormat} [options.vertexFormat=VertexFormat.DEFAULT] The vertex attributes to be computed.
|
||
* @returns {BoxGeometry}
|
||
*
|
||
* @exception {DeveloperError} All dimensions components must be greater than or equal to zero.
|
||
*
|
||
*
|
||
* @example
|
||
* var box = Cesium.BoxGeometry.fromDimensions({
|
||
* vertexFormat : Cesium.VertexFormat.POSITION_ONLY,
|
||
* dimensions : new Cesium.Cartesian3(500000.0, 500000.0, 500000.0)
|
||
* });
|
||
* var geometry = Cesium.BoxGeometry.createGeometry(box);
|
||
*
|
||
* @see BoxGeometry.createGeometry
|
||
*/
|
||
BoxGeometry.fromDimensions = function(options) {
|
||
options = when.defaultValue(options, when.defaultValue.EMPTY_OBJECT);
|
||
var dimensions = options.dimensions;
|
||
|
||
//>>includeStart('debug', pragmas.debug);
|
||
Check.Check.typeOf.object('dimensions', dimensions);
|
||
Check.Check.typeOf.number.greaterThanOrEquals('dimensions.x', dimensions.x, 0);
|
||
Check.Check.typeOf.number.greaterThanOrEquals('dimensions.y', dimensions.y, 0);
|
||
Check.Check.typeOf.number.greaterThanOrEquals('dimensions.z', dimensions.z, 0);
|
||
//>>includeEnd('debug');
|
||
|
||
var corner = Cartographic.Cartesian3.multiplyByScalar(dimensions, 0.5, new Cartographic.Cartesian3());
|
||
|
||
return new BoxGeometry({
|
||
minimum : Cartographic.Cartesian3.negate(corner, new Cartographic.Cartesian3()),
|
||
maximum : corner,
|
||
vertexFormat : options.vertexFormat,
|
||
offsetAttribute: options.offsetAttribute
|
||
});
|
||
};
|
||
|
||
/**
|
||
* Creates a cube from the dimensions of an AxisAlignedBoundingBox.
|
||
*
|
||
* @param {AxisAlignedBoundingBox} boundingBox A description of the AxisAlignedBoundingBox.
|
||
* @returns {BoxGeometry}
|
||
*
|
||
*
|
||
*
|
||
* @example
|
||
* var aabb = Cesium.AxisAlignedBoundingBox.fromPoints(Cesium.Cartesian3.fromDegreesArray([
|
||
* -72.0, 40.0,
|
||
* -70.0, 35.0,
|
||
* -75.0, 30.0,
|
||
* -70.0, 30.0,
|
||
* -68.0, 40.0
|
||
* ]));
|
||
* var box = Cesium.BoxGeometry.fromAxisAlignedBoundingBox(aabb);
|
||
*
|
||
* @see BoxGeometry.createGeometry
|
||
*/
|
||
BoxGeometry.fromAxisAlignedBoundingBox = function (boundingBox) {
|
||
//>>includeStart('debug', pragmas.debug);
|
||
Check.Check.typeOf.object('boundingBox', boundingBox);
|
||
//>>includeEnd('debug');
|
||
|
||
return new BoxGeometry({
|
||
minimum : boundingBox.minimum,
|
||
maximum : boundingBox.maximum
|
||
});
|
||
};
|
||
|
||
/**
|
||
* The number of elements used to pack the object into an array.
|
||
* @type {Number}
|
||
*/
|
||
BoxGeometry.packedLength = 2 * Cartographic.Cartesian3.packedLength + VertexFormat.VertexFormat.packedLength + 1;
|
||
|
||
/**
|
||
* Stores the provided instance into the provided array.
|
||
*
|
||
* @param {BoxGeometry} 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
|
||
*/
|
||
BoxGeometry.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);
|
||
|
||
Cartographic.Cartesian3.pack(value._minimum, array, startingIndex);
|
||
Cartographic.Cartesian3.pack(value._maximum, array, startingIndex + Cartographic.Cartesian3.packedLength);
|
||
VertexFormat.VertexFormat.pack(value._vertexFormat, array, startingIndex + 2 * Cartographic.Cartesian3.packedLength);
|
||
array[startingIndex + 2 * Cartographic.Cartesian3.packedLength + VertexFormat.VertexFormat.packedLength] = when.defaultValue(value._offsetAttribute, -1);
|
||
|
||
return array;
|
||
};
|
||
|
||
var scratchMin = new Cartographic.Cartesian3();
|
||
var scratchMax = new Cartographic.Cartesian3();
|
||
var scratchVertexFormat = new VertexFormat.VertexFormat();
|
||
var scratchOptions = {
|
||
minimum: scratchMin,
|
||
maximum: scratchMax,
|
||
vertexFormat: scratchVertexFormat,
|
||
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 {BoxGeometry} [result] The object into which to store the result.
|
||
* @returns {BoxGeometry} The modified result parameter or a new BoxGeometry instance if one was not provided.
|
||
*/
|
||
BoxGeometry.unpack = function(array, startingIndex, result) {
|
||
//>>includeStart('debug', pragmas.debug);
|
||
Check.Check.defined('array', array);
|
||
//>>includeEnd('debug');
|
||
|
||
startingIndex = when.defaultValue(startingIndex, 0);
|
||
|
||
var min = Cartographic.Cartesian3.unpack(array, startingIndex, scratchMin);
|
||
var max = Cartographic.Cartesian3.unpack(array, startingIndex + Cartographic.Cartesian3.packedLength, scratchMax);
|
||
var vertexFormat = VertexFormat.VertexFormat.unpack(array, startingIndex + 2 * Cartographic.Cartesian3.packedLength, scratchVertexFormat);
|
||
var offsetAttribute = array[startingIndex + 2 * Cartographic.Cartesian3.packedLength + VertexFormat.VertexFormat.packedLength];
|
||
|
||
if (!when.defined(result)) {
|
||
scratchOptions.offsetAttribute = offsetAttribute === -1 ? undefined : offsetAttribute;
|
||
return new BoxGeometry(scratchOptions);
|
||
}
|
||
|
||
result._minimum = Cartographic.Cartesian3.clone(min, result._minimum);
|
||
result._maximum = Cartographic.Cartesian3.clone(max, result._maximum);
|
||
result._vertexFormat = VertexFormat.VertexFormat.clone(vertexFormat, result._vertexFormat);
|
||
result._offsetAttribute = offsetAttribute === -1 ? undefined : offsetAttribute;
|
||
|
||
return result;
|
||
};
|
||
|
||
/**
|
||
* Computes the geometric representation of a box, including its vertices, indices, and a bounding sphere.
|
||
*
|
||
* @param {BoxGeometry} boxGeometry A description of the box.
|
||
* @returns {Geometry|undefined} The computed vertices and indices.
|
||
*/
|
||
BoxGeometry.createGeometry = function(boxGeometry) {
|
||
var min = boxGeometry._minimum;
|
||
var max = boxGeometry._maximum;
|
||
var vertexFormat = boxGeometry._vertexFormat;
|
||
|
||
if (Cartographic.Cartesian3.equals(min, max)) {
|
||
return;
|
||
}
|
||
|
||
var attributes = new GeometryAttributes.GeometryAttributes();
|
||
var indices;
|
||
var positions;
|
||
|
||
if (vertexFormat.position &&
|
||
(vertexFormat.st || vertexFormat.normal || vertexFormat.tangent || vertexFormat.bitangent)) {
|
||
if (vertexFormat.position) {
|
||
// 8 corner points. Duplicated 3 times each for each incident edge/face.
|
||
positions = new Float64Array(6 * 4 * 3);
|
||
|
||
// +z face
|
||
positions[0] = min.x;
|
||
positions[1] = min.y;
|
||
positions[2] = max.z;
|
||
positions[3] = max.x;
|
||
positions[4] = min.y;
|
||
positions[5] = max.z;
|
||
positions[6] = max.x;
|
||
positions[7] = max.y;
|
||
positions[8] = max.z;
|
||
positions[9] = min.x;
|
||
positions[10] = max.y;
|
||
positions[11] = max.z;
|
||
|
||
// -z face
|
||
positions[12] = min.x;
|
||
positions[13] = min.y;
|
||
positions[14] = min.z;
|
||
positions[15] = max.x;
|
||
positions[16] = min.y;
|
||
positions[17] = min.z;
|
||
positions[18] = max.x;
|
||
positions[19] = max.y;
|
||
positions[20] = min.z;
|
||
positions[21] = min.x;
|
||
positions[22] = max.y;
|
||
positions[23] = min.z;
|
||
|
||
// +x face
|
||
positions[24] = max.x;
|
||
positions[25] = min.y;
|
||
positions[26] = min.z;
|
||
positions[27] = max.x;
|
||
positions[28] = max.y;
|
||
positions[29] = min.z;
|
||
positions[30] = max.x;
|
||
positions[31] = max.y;
|
||
positions[32] = max.z;
|
||
positions[33] = max.x;
|
||
positions[34] = min.y;
|
||
positions[35] = max.z;
|
||
|
||
// -x face
|
||
positions[36] = min.x;
|
||
positions[37] = min.y;
|
||
positions[38] = min.z;
|
||
positions[39] = min.x;
|
||
positions[40] = max.y;
|
||
positions[41] = min.z;
|
||
positions[42] = min.x;
|
||
positions[43] = max.y;
|
||
positions[44] = max.z;
|
||
positions[45] = min.x;
|
||
positions[46] = min.y;
|
||
positions[47] = max.z;
|
||
|
||
// +y face
|
||
positions[48] = min.x;
|
||
positions[49] = max.y;
|
||
positions[50] = min.z;
|
||
positions[51] = max.x;
|
||
positions[52] = max.y;
|
||
positions[53] = min.z;
|
||
positions[54] = max.x;
|
||
positions[55] = max.y;
|
||
positions[56] = max.z;
|
||
positions[57] = min.x;
|
||
positions[58] = max.y;
|
||
positions[59] = max.z;
|
||
|
||
// -y face
|
||
positions[60] = min.x;
|
||
positions[61] = min.y;
|
||
positions[62] = min.z;
|
||
positions[63] = max.x;
|
||
positions[64] = min.y;
|
||
positions[65] = min.z;
|
||
positions[66] = max.x;
|
||
positions[67] = min.y;
|
||
positions[68] = max.z;
|
||
positions[69] = min.x;
|
||
positions[70] = min.y;
|
||
positions[71] = max.z;
|
||
|
||
attributes.position = new GeometryAttribute.GeometryAttribute({
|
||
componentDatatype : ComponentDatatype.ComponentDatatype.DOUBLE,
|
||
componentsPerAttribute : 3,
|
||
values : positions
|
||
});
|
||
}
|
||
|
||
if (vertexFormat.normal) {
|
||
var normals = new Float32Array(6 * 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;
|
||
|
||
// -z face
|
||
normals[12] = 0.0;
|
||
normals[13] = 0.0;
|
||
normals[14] = -1.0;
|
||
normals[15] = 0.0;
|
||
normals[16] = 0.0;
|
||
normals[17] = -1.0;
|
||
normals[18] = 0.0;
|
||
normals[19] = 0.0;
|
||
normals[20] = -1.0;
|
||
normals[21] = 0.0;
|
||
normals[22] = 0.0;
|
||
normals[23] = -1.0;
|
||
|
||
// +x face
|
||
normals[24] = 1.0;
|
||
normals[25] = 0.0;
|
||
normals[26] = 0.0;
|
||
normals[27] = 1.0;
|
||
normals[28] = 0.0;
|
||
normals[29] = 0.0;
|
||
normals[30] = 1.0;
|
||
normals[31] = 0.0;
|
||
normals[32] = 0.0;
|
||
normals[33] = 1.0;
|
||
normals[34] = 0.0;
|
||
normals[35] = 0.0;
|
||
|
||
// -x face
|
||
normals[36] = -1.0;
|
||
normals[37] = 0.0;
|
||
normals[38] = 0.0;
|
||
normals[39] = -1.0;
|
||
normals[40] = 0.0;
|
||
normals[41] = 0.0;
|
||
normals[42] = -1.0;
|
||
normals[43] = 0.0;
|
||
normals[44] = 0.0;
|
||
normals[45] = -1.0;
|
||
normals[46] = 0.0;
|
||
normals[47] = 0.0;
|
||
|
||
// +y face
|
||
normals[48] = 0.0;
|
||
normals[49] = 1.0;
|
||
normals[50] = 0.0;
|
||
normals[51] = 0.0;
|
||
normals[52] = 1.0;
|
||
normals[53] = 0.0;
|
||
normals[54] = 0.0;
|
||
normals[55] = 1.0;
|
||
normals[56] = 0.0;
|
||
normals[57] = 0.0;
|
||
normals[58] = 1.0;
|
||
normals[59] = 0.0;
|
||
|
||
// -y face
|
||
normals[60] = 0.0;
|
||
normals[61] = -1.0;
|
||
normals[62] = 0.0;
|
||
normals[63] = 0.0;
|
||
normals[64] = -1.0;
|
||
normals[65] = 0.0;
|
||
normals[66] = 0.0;
|
||
normals[67] = -1.0;
|
||
normals[68] = 0.0;
|
||
normals[69] = 0.0;
|
||
normals[70] = -1.0;
|
||
normals[71] = 0.0;
|
||
|
||
attributes.normal = new GeometryAttribute.GeometryAttribute({
|
||
componentDatatype : ComponentDatatype.ComponentDatatype.FLOAT,
|
||
componentsPerAttribute : 3,
|
||
values : normals
|
||
});
|
||
}
|
||
|
||
if (vertexFormat.st) {
|
||
// 纹理坐标多用一位存储顶点数据哪个面，BOX剖面分析贴纹理需要用
|
||
var texCoords = new Float32Array(6 * 4 * 3);
|
||
var texValueIndex = 0;
|
||
// +z face
|
||
texCoords[texValueIndex++] = 0.0;
|
||
texCoords[texValueIndex++] = 0.0;
|
||
texCoords[texValueIndex++] = -1.0;
|
||
|
||
texCoords[texValueIndex++] = 1.0;
|
||
texCoords[texValueIndex++] = 0.0;
|
||
texCoords[texValueIndex++] = -1.0;
|
||
|
||
texCoords[texValueIndex++] = 1.0;
|
||
texCoords[texValueIndex++] = 1.0;
|
||
texCoords[texValueIndex++] = -1.0;
|
||
|
||
texCoords[texValueIndex++] = 0.0;
|
||
texCoords[texValueIndex++] = 1.0;
|
||
texCoords[texValueIndex++] = -1.0;
|
||
|
||
// -z face
|
||
texCoords[texValueIndex++] = 1.0;
|
||
texCoords[texValueIndex++] = 0.0;
|
||
texCoords[texValueIndex++] = -1.0;
|
||
|
||
texCoords[texValueIndex++] = 0.0;
|
||
texCoords[texValueIndex++] = 0.0;
|
||
texCoords[texValueIndex++] = -1.0;
|
||
|
||
texCoords[texValueIndex++] = 0.0;
|
||
texCoords[texValueIndex++] = 1.0;
|
||
texCoords[texValueIndex++] = -1.0;
|
||
|
||
texCoords[texValueIndex++] = 1.0;
|
||
texCoords[texValueIndex++] = 1.0;
|
||
texCoords[texValueIndex++] = -1.0;
|
||
|
||
//+x face
|
||
texCoords[texValueIndex++] = 0.0;
|
||
texCoords[texValueIndex++] = 0.0;
|
||
texCoords[texValueIndex++] = 0.0;
|
||
|
||
texCoords[texValueIndex++] = 1.0;
|
||
texCoords[texValueIndex++] = 0.0;
|
||
texCoords[texValueIndex++] = 0.0;
|
||
|
||
texCoords[texValueIndex++] = 1.0;
|
||
texCoords[texValueIndex++] = 1.0;
|
||
texCoords[texValueIndex++] = 0.0;
|
||
|
||
texCoords[texValueIndex++] = 0.0;
|
||
texCoords[texValueIndex++] = 1.0;
|
||
texCoords[texValueIndex++] = 0.0;
|
||
|
||
// -x face
|
||
texCoords[texValueIndex++] = 1.0;
|
||
texCoords[texValueIndex++] = 0.0;
|
||
texCoords[texValueIndex++] = 0.0;
|
||
|
||
texCoords[texValueIndex++] = 0.0;
|
||
texCoords[texValueIndex++] = 0.0;
|
||
texCoords[texValueIndex++] = 0.0;
|
||
|
||
texCoords[texValueIndex++] = 0.0;
|
||
texCoords[texValueIndex++] = 1.0;
|
||
texCoords[texValueIndex++] = 0.0;
|
||
|
||
texCoords[texValueIndex++] = 1.0;
|
||
texCoords[texValueIndex++] = 1.0;
|
||
texCoords[texValueIndex++] = 0.0;
|
||
|
||
// +y face
|
||
texCoords[texValueIndex++] = 1.0;
|
||
texCoords[texValueIndex++] = 0.0;
|
||
texCoords[texValueIndex++] = 1.0;
|
||
|
||
texCoords[texValueIndex++] = 0.0;
|
||
texCoords[texValueIndex++] = 0.0;
|
||
texCoords[texValueIndex++] = 1.0;
|
||
|
||
texCoords[texValueIndex++] = 0.0;
|
||
texCoords[texValueIndex++] = 1.0;
|
||
texCoords[texValueIndex++] = 1.0;
|
||
|
||
texCoords[texValueIndex++] = 1.0;
|
||
texCoords[texValueIndex++] = 1.0;
|
||
texCoords[texValueIndex++] = 1.0;
|
||
|
||
// -y face
|
||
texCoords[texValueIndex++] = 0.0;
|
||
texCoords[texValueIndex++] = 0.0;
|
||
texCoords[texValueIndex++] = 1.0;
|
||
|
||
texCoords[texValueIndex++] = 1.0;
|
||
texCoords[texValueIndex++] = 0.0;
|
||
texCoords[texValueIndex++] = 1.0;
|
||
|
||
texCoords[texValueIndex++] = 1.0;
|
||
texCoords[texValueIndex++] = 1.0;
|
||
texCoords[texValueIndex++] = 1.0;
|
||
|
||
texCoords[texValueIndex++] = 0.0;
|
||
texCoords[texValueIndex++] = 1.0;
|
||
texCoords[texValueIndex++] = 1.0;
|
||
|
||
attributes.st = new GeometryAttribute.GeometryAttribute({
|
||
componentDatatype : ComponentDatatype.ComponentDatatype.FLOAT,
|
||
componentsPerAttribute : 3,
|
||
values : texCoords
|
||
});
|
||
}
|
||
|
||
if (vertexFormat.tangent) {
|
||
var tangents = new Float32Array(6 * 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;
|
||
|
||
// -z face
|
||
tangents[12] = -1.0;
|
||
tangents[13] = 0.0;
|
||
tangents[14] = 0.0;
|
||
tangents[15] = -1.0;
|
||
tangents[16] = 0.0;
|
||
tangents[17] = 0.0;
|
||
tangents[18] = -1.0;
|
||
tangents[19] = 0.0;
|
||
tangents[20] = 0.0;
|
||
tangents[21] = -1.0;
|
||
tangents[22] = 0.0;
|
||
tangents[23] = 0.0;
|
||
|
||
// +x face
|
||
tangents[24] = 0.0;
|
||
tangents[25] = 1.0;
|
||
tangents[26] = 0.0;
|
||
tangents[27] = 0.0;
|
||
tangents[28] = 1.0;
|
||
tangents[29] = 0.0;
|
||
tangents[30] = 0.0;
|
||
tangents[31] = 1.0;
|
||
tangents[32] = 0.0;
|
||
tangents[33] = 0.0;
|
||
tangents[34] = 1.0;
|
||
tangents[35] = 0.0;
|
||
|
||
// -x face
|
||
tangents[36] = 0.0;
|
||
tangents[37] = -1.0;
|
||
tangents[38] = 0.0;
|
||
tangents[39] = 0.0;
|
||
tangents[40] = -1.0;
|
||
tangents[41] = 0.0;
|
||
tangents[42] = 0.0;
|
||
tangents[43] = -1.0;
|
||
tangents[44] = 0.0;
|
||
tangents[45] = 0.0;
|
||
tangents[46] = -1.0;
|
||
tangents[47] = 0.0;
|
||
|
||
// +y face
|
||
tangents[48] = -1.0;
|
||
tangents[49] = 0.0;
|
||
tangents[50] = 0.0;
|
||
tangents[51] = -1.0;
|
||
tangents[52] = 0.0;
|
||
tangents[53] = 0.0;
|
||
tangents[54] = -1.0;
|
||
tangents[55] = 0.0;
|
||
tangents[56] = 0.0;
|
||
tangents[57] = -1.0;
|
||
tangents[58] = 0.0;
|
||
tangents[59] = 0.0;
|
||
|
||
// -y face
|
||
tangents[60] = 1.0;
|
||
tangents[61] = 0.0;
|
||
tangents[62] = 0.0;
|
||
tangents[63] = 1.0;
|
||
tangents[64] = 0.0;
|
||
tangents[65] = 0.0;
|
||
tangents[66] = 1.0;
|
||
tangents[67] = 0.0;
|
||
tangents[68] = 0.0;
|
||
tangents[69] = 1.0;
|
||
tangents[70] = 0.0;
|
||
tangents[71] = 0.0;
|
||
|
||
attributes.tangent = new GeometryAttribute.GeometryAttribute({
|
||
componentDatatype : ComponentDatatype.ComponentDatatype.FLOAT,
|
||
componentsPerAttribute : 3,
|
||
values : tangents
|
||
});
|
||
}
|
||
|
||
if (vertexFormat.bitangent) {
|
||
var bitangents = new Float32Array(6 * 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;
|
||
|
||
// -z face
|
||
bitangents[12] = 0.0;
|
||
bitangents[13] = 1.0;
|
||
bitangents[14] = 0.0;
|
||
bitangents[15] = 0.0;
|
||
bitangents[16] = 1.0;
|
||
bitangents[17] = 0.0;
|
||
bitangents[18] = 0.0;
|
||
bitangents[19] = 1.0;
|
||
bitangents[20] = 0.0;
|
||
bitangents[21] = 0.0;
|
||
bitangents[22] = 1.0;
|
||
bitangents[23] = 0.0;
|
||
|
||
// +x face
|
||
bitangents[24] = 0.0;
|
||
bitangents[25] = 0.0;
|
||
bitangents[26] = 1.0;
|
||
bitangents[27] = 0.0;
|
||
bitangents[28] = 0.0;
|
||
bitangents[29] = 1.0;
|
||
bitangents[30] = 0.0;
|
||
bitangents[31] = 0.0;
|
||
bitangents[32] = 1.0;
|
||
bitangents[33] = 0.0;
|
||
bitangents[34] = 0.0;
|
||
bitangents[35] = 1.0;
|
||
|
||
// -x face
|
||
bitangents[36] = 0.0;
|
||
bitangents[37] = 0.0;
|
||
bitangents[38] = 1.0;
|
||
bitangents[39] = 0.0;
|
||
bitangents[40] = 0.0;
|
||
bitangents[41] = 1.0;
|
||
bitangents[42] = 0.0;
|
||
bitangents[43] = 0.0;
|
||
bitangents[44] = 1.0;
|
||
bitangents[45] = 0.0;
|
||
bitangents[46] = 0.0;
|
||
bitangents[47] = 1.0;
|
||
|
||
// +y face
|
||
bitangents[48] = 0.0;
|
||
bitangents[49] = 0.0;
|
||
bitangents[50] = 1.0;
|
||
bitangents[51] = 0.0;
|
||
bitangents[52] = 0.0;
|
||
bitangents[53] = 1.0;
|
||
bitangents[54] = 0.0;
|
||
bitangents[55] = 0.0;
|
||
bitangents[56] = 1.0;
|
||
bitangents[57] = 0.0;
|
||
bitangents[58] = 0.0;
|
||
bitangents[59] = 1.0;
|
||
|
||
// -y face
|
||
bitangents[60] = 0.0;
|
||
bitangents[61] = 0.0;
|
||
bitangents[62] = 1.0;
|
||
bitangents[63] = 0.0;
|
||
bitangents[64] = 0.0;
|
||
bitangents[65] = 1.0;
|
||
bitangents[66] = 0.0;
|
||
bitangents[67] = 0.0;
|
||
bitangents[68] = 1.0;
|
||
bitangents[69] = 0.0;
|
||
bitangents[70] = 0.0;
|
||
bitangents[71] = 1.0;
|
||
|
||
attributes.bitangent = new GeometryAttribute.GeometryAttribute({
|
||
componentDatatype : ComponentDatatype.ComponentDatatype.FLOAT,
|
||
componentsPerAttribute : 3,
|
||
values : bitangents
|
||
});
|
||
}
|
||
|
||
// 12 triangles: 6 faces, 2 triangles each.
|
||
indices = new Uint16Array(6 * 2 * 3);
|
||
|
||
// +z face
|
||
indices[0] = 0;
|
||
indices[1] = 1;
|
||
indices[2] = 2;
|
||
indices[3] = 0;
|
||
indices[4] = 2;
|
||
indices[5] = 3;
|
||
|
||
// -z face
|
||
indices[6] = 4 + 2;
|
||
indices[7] = 4 + 1;
|
||
indices[8] = 4 + 0;
|
||
indices[9] = 4 + 3;
|
||
indices[10] = 4 + 2;
|
||
indices[11] = 4 + 0;
|
||
|
||
// +x face
|
||
indices[12] = 8 + 0;
|
||
indices[13] = 8 + 1;
|
||
indices[14] = 8 + 2;
|
||
indices[15] = 8 + 0;
|
||
indices[16] = 8 + 2;
|
||
indices[17] = 8 + 3;
|
||
|
||
// -x face
|
||
indices[18] = 12 + 2;
|
||
indices[19] = 12 + 1;
|
||
indices[20] = 12 + 0;
|
||
indices[21] = 12 + 3;
|
||
indices[22] = 12 + 2;
|
||
indices[23] = 12 + 0;
|
||
|
||
// +y face
|
||
indices[24] = 16 + 2;
|
||
indices[25] = 16 + 1;
|
||
indices[26] = 16 + 0;
|
||
indices[27] = 16 + 3;
|
||
indices[28] = 16 + 2;
|
||
indices[29] = 16 + 0;
|
||
|
||
// -y face
|
||
indices[30] = 20 + 0;
|
||
indices[31] = 20 + 1;
|
||
indices[32] = 20 + 2;
|
||
indices[33] = 20 + 0;
|
||
indices[34] = 20 + 2;
|
||
indices[35] = 20 + 3;
|
||
} else {
|
||
// Positions only - no need to duplicate corner points
|
||
positions = new Float64Array(8 * 3);
|
||
|
||
positions[0] = min.x;
|
||
positions[1] = min.y;
|
||
positions[2] = min.z;
|
||
positions[3] = max.x;
|
||
positions[4] = min.y;
|
||
positions[5] = min.z;
|
||
positions[6] = max.x;
|
||
positions[7] = max.y;
|
||
positions[8] = min.z;
|
||
positions[9] = min.x;
|
||
positions[10] = max.y;
|
||
positions[11] = min.z;
|
||
positions[12] = min.x;
|
||
positions[13] = min.y;
|
||
positions[14] = max.z;
|
||
positions[15] = max.x;
|
||
positions[16] = min.y;
|
||
positions[17] = max.z;
|
||
positions[18] = max.x;
|
||
positions[19] = max.y;
|
||
positions[20] = max.z;
|
||
positions[21] = min.x;
|
||
positions[22] = max.y;
|
||
positions[23] = max.z;
|
||
|
||
attributes.position = new GeometryAttribute.GeometryAttribute({
|
||
componentDatatype : ComponentDatatype.ComponentDatatype.DOUBLE,
|
||
componentsPerAttribute : 3,
|
||
values : positions
|
||
});
|
||
|
||
// 12 triangles: 6 faces, 2 triangles each.
|
||
indices = new Uint16Array(6 * 2 * 3);
|
||
|
||
// plane z = corner.Z
|
||
indices[0] = 4;
|
||
indices[1] = 5;
|
||
indices[2] = 6;
|
||
indices[3] = 4;
|
||
indices[4] = 6;
|
||
indices[5] = 7;
|
||
|
||
// plane z = -corner.Z
|
||
indices[6] = 1;
|
||
indices[7] = 0;
|
||
indices[8] = 3;
|
||
indices[9] = 1;
|
||
indices[10] = 3;
|
||
indices[11] = 2;
|
||
|
||
// plane x = corner.X
|
||
indices[12] = 1;
|
||
indices[13] = 6;
|
||
indices[14] = 5;
|
||
indices[15] = 1;
|
||
indices[16] = 2;
|
||
indices[17] = 6;
|
||
|
||
// plane y = corner.Y
|
||
indices[18] = 2;
|
||
indices[19] = 3;
|
||
indices[20] = 7;
|
||
indices[21] = 2;
|
||
indices[22] = 7;
|
||
indices[23] = 6;
|
||
|
||
// plane x = -corner.X
|
||
indices[24] = 3;
|
||
indices[25] = 0;
|
||
indices[26] = 4;
|
||
indices[27] = 3;
|
||
indices[28] = 4;
|
||
indices[29] = 7;
|
||
|
||
// plane y = -corner.Y
|
||
indices[30] = 0;
|
||
indices[31] = 1;
|
||
indices[32] = 5;
|
||
indices[33] = 0;
|
||
indices[34] = 5;
|
||
indices[35] = 4;
|
||
}
|
||
|
||
var diff = Cartographic.Cartesian3.subtract(max, min, diffScratch);
|
||
var radius = Cartographic.Cartesian3.magnitude(diff) * 0.5;
|
||
|
||
if (when.defined(boxGeometry._offsetAttribute)) {
|
||
var length = positions.length;
|
||
var applyOffset = new Uint8Array(length / 3);
|
||
var offsetValue = boxGeometry._offsetAttribute === GeometryOffsetAttribute.GeometryOffsetAttribute.NONE ? 0 : 1;
|
||
arrayFill.arrayFill(applyOffset, offsetValue);
|
||
attributes.applyOffset = new GeometryAttribute.GeometryAttribute({
|
||
componentDatatype : ComponentDatatype.ComponentDatatype.UNSIGNED_BYTE,
|
||
componentsPerAttribute : 1,
|
||
values: applyOffset
|
||
});
|
||
}
|
||
|
||
return new GeometryAttribute.Geometry({
|
||
attributes : attributes,
|
||
indices : indices,
|
||
primitiveType : PrimitiveType.PrimitiveType.TRIANGLES,
|
||
boundingSphere : new BoundingSphere.BoundingSphere(Cartographic.Cartesian3.ZERO, radius),
|
||
offsetAttribute : boxGeometry._offsetAttribute
|
||
});
|
||
};
|
||
|
||
var unitBoxGeometry;
|
||
|
||
/**
|
||
* Returns the geometric representation of a unit box, including its vertices, indices, and a bounding sphere.
|
||
* @returns {Geometry} The computed vertices and indices.
|
||
*
|
||
* @private
|
||
*/
|
||
BoxGeometry.getUnitBox = function() {
|
||
if (!when.defined(unitBoxGeometry)) {
|
||
unitBoxGeometry = BoxGeometry.createGeometry(BoxGeometry.fromDimensions({
|
||
dimensions : new Cartographic.Cartesian3(1.0, 1.0, 1.0),
|
||
vertexFormat : VertexFormat.VertexFormat.POSITION_ONLY
|
||
}));
|
||
}
|
||
return unitBoxGeometry;
|
||
};
|
||
|
||
exports.BoxGeometry = BoxGeometry;
|
||
|
||
});
|