/**
|
* Cesium - https://github.com/AnalyticalGraphicsInc/cesium
|
*
|
* Copyright 2011-2017 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/AnalyticalGraphicsInc/cesium/blob/master/LICENSE.md for full licensing details.
|
*/
|
define(['./when-8d13db60', './Check-70bec281', './Math-61ede240', './Cartesian2-2cbe6c75', './BoundingSphere-51445700', './RuntimeError-ba10bc3e', './WebGLConstants-4c11ee5f', './ComponentDatatype-5862616f', './GeometryAttribute-ec5c2270', './PrimitiveType-97893bc7', './FeatureDetection-7bd32c34', './Transforms-2f2aa225', './buildModuleUrl-46c77f41', './GeometryAttributes-aacecde6'], function (when, Check, _Math, Cartesian2, BoundingSphere, RuntimeError, WebGLConstants, ComponentDatatype, GeometryAttribute, PrimitiveType, FeatureDetection, Transforms, buildModuleUrl, GeometryAttributes) { 'use strict';
|
|
/**
|
* Describes geometry representing the outline of a plane centered at the origin, with a unit width and length.
|
*
|
* @alias PlaneOutlineGeometry
|
* @constructor
|
*
|
*/
|
function PlaneOutlineGeometry() {
|
this._workerName = 'createPlaneOutlineGeometry';
|
}
|
|
/**
|
* The number of elements used to pack the object into an array.
|
* @type {Number}
|
*/
|
PlaneOutlineGeometry.packedLength = 0;
|
|
/**
|
* Stores the provided instance into the provided array.
|
*
|
* @param {PlaneOutlineGeometry} value The value to pack.
|
* @param {Number[]} array The array to pack into.
|
*
|
* @returns {Number[]} The array that was packed into
|
*/
|
PlaneOutlineGeometry.pack = function(value, array) {
|
//>>includeStart('debug', pragmas.debug);
|
Check.Check.defined('value', value);
|
Check.Check.defined('array', array);
|
//>>includeEnd('debug');
|
|
return array;
|
};
|
|
/**
|
* 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 {PlaneOutlineGeometry} [result] The object into which to store the result.
|
* @returns {PlaneOutlineGeometry} The modified result parameter or a new PlaneOutlineGeometry instance if one was not provided.
|
*/
|
PlaneOutlineGeometry.unpack = function(array, startingIndex, result) {
|
//>>includeStart('debug', pragmas.debug);
|
Check.Check.defined('array', array);
|
//>>includeEnd('debug');
|
|
if (!when.defined(result)) {
|
return new PlaneOutlineGeometry();
|
}
|
|
return result;
|
};
|
|
var min = new Cartesian2.Cartesian3(-0.5, -0.5, 0.0);
|
var max = new Cartesian2.Cartesian3( 0.5, 0.5, 0.0);
|
|
/**
|
* Computes the geometric representation of an outline of a plane, including its vertices, indices, and a bounding sphere.
|
*
|
* @returns {Geometry|undefined} The computed vertices and indices.
|
*/
|
PlaneOutlineGeometry.createGeometry = function() {
|
var attributes = new GeometryAttributes.GeometryAttributes();
|
var indices = new Uint16Array(4 * 2);
|
var positions = new Float64Array(4 * 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;
|
|
attributes.position = new GeometryAttribute.GeometryAttribute({
|
componentDatatype : ComponentDatatype.ComponentDatatype.DOUBLE,
|
componentsPerAttribute : 3,
|
values : positions
|
});
|
|
indices[0] = 0;
|
indices[1] = 1;
|
indices[2] = 1;
|
indices[3] = 2;
|
indices[4] = 2;
|
indices[5] = 3;
|
indices[6] = 3;
|
indices[7] = 0;
|
|
return new GeometryAttribute.Geometry({
|
attributes : attributes,
|
indices : indices,
|
primitiveType : PrimitiveType.PrimitiveType.LINES,
|
boundingSphere : new BoundingSphere.BoundingSphere(Cartesian2.Cartesian3.ZERO, Math.sqrt(2.0))
|
});
|
};
|
|
function createPlaneOutlineGeometry(planeGeometry, offset) {
|
if (when.defined(offset)) {
|
planeGeometry = PlaneOutlineGeometry.unpack(planeGeometry, offset);
|
}
|
return PlaneOutlineGeometry.createGeometry(planeGeometry);
|
}
|
|
return createPlaneOutlineGeometry;
|
|
});
|
