cesium
Version:
CesiumJS is a JavaScript library for creating 3D globes and 2D maps in a web browser without a plugin.
111 lines (98 loc) • 2.79 kB
JavaScript
define([
'../Core/Check',
'../Core/freezeObject',
'../Core/Math',
'../Core/Matrix3',
'../Core/Matrix4'
], function(
Check,
freezeObject,
CesiumMath,
Matrix3,
Matrix4) {
'use strict';
/**
* An enum describing the x, y, and z axes and helper conversion functions.
*
* @exports Axis
* @private
*/
var Axis = {
/**
* Denotes the x-axis.
*
* @type {Number}
* @constant
*/
X : 0,
/**
* Denotes the y-axis.
*
* @type {Number}
* @constant
*/
Y : 1,
/**
* Denotes the z-axis.
*
* @type {Number}
* @constant
*/
Z : 2,
/**
* Matrix used to convert from y-up to z-up
*
* @type {Matrix4}
* @constant
*/
Y_UP_TO_Z_UP : Matrix4.fromRotationTranslation(Matrix3.fromRotationX(CesiumMath.PI_OVER_TWO)),
/**
* Matrix used to convert from z-up to y-up
*
* @type {Matrix4}
* @constant
*/
Z_UP_TO_Y_UP : Matrix4.fromRotationTranslation(Matrix3.fromRotationX(-CesiumMath.PI_OVER_TWO)),
/**
* Matrix used to convert from x-up to z-up
*
* @type {Matrix4}
* @constant
*/
X_UP_TO_Z_UP : Matrix4.fromRotationTranslation(Matrix3.fromRotationY(-CesiumMath.PI_OVER_TWO)),
/**
* Matrix used to convert from z-up to x-up
*
* @type {Matrix4}
* @constant
*/
Z_UP_TO_X_UP : Matrix4.fromRotationTranslation(Matrix3.fromRotationY(CesiumMath.PI_OVER_TWO)),
/**
* Matrix used to convert from x-up to y-up
*
* @type {Matrix4}
* @constant
*/
X_UP_TO_Y_UP : Matrix4.fromRotationTranslation(Matrix3.fromRotationZ(CesiumMath.PI_OVER_TWO)),
/**
* Matrix used to convert from y-up to x-up
*
* @type {Matrix4}
* @constant
*/
Y_UP_TO_X_UP : Matrix4.fromRotationTranslation(Matrix3.fromRotationZ(-CesiumMath.PI_OVER_TWO)),
/**
* Gets the axis by name
*
* @param {String} name The name of the axis.
* @returns {Number} The axis enum.
*/
fromName : function(name) {
//>>includeStart('debug', pragmas.debug);
Check.typeOf.string('name', name);
//>>includeEnd('debug');
return Axis[name];
}
};
return freezeObject(Axis);
});