/
PolylineOutlineMaterialProperty.js
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/
PolylineOutlineMaterialProperty.js
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define([
'../Core/Color',
'../Core/defaultValue',
'../Core/defined',
'../Core/defineProperties',
'../Core/Event',
'./createPropertyDescriptor',
'./Property'
], function(
Color,
defaultValue,
defined,
defineProperties,
Event,
createPropertyDescriptor,
Property) {
'use strict';
var defaultColor = Color.WHITE;
var defaultOutlineColor = Color.BLACK;
var defaultOutlineWidth = 1.0;
/**
* A {@link MaterialProperty} that maps to polyline outline {@link Material} uniforms.
* @alias PolylineOutlineMaterialProperty
* @constructor
*
* @param {Object} [options] Object with the following properties:
* @param {Property} [options.color=Color.WHITE] A Property specifying the {@link Color} of the line.
* @param {Property} [options.outlineColor=Color.BLACK] A Property specifying the {@link Color} of the outline.
* @param {Property} [options.outlineWidth=1.0] A numeric Property specifying the width of the outline, in pixels.
*/
function PolylineOutlineMaterialProperty(options) {
options = defaultValue(options, defaultValue.EMPTY_OBJECT);
this._definitionChanged = new Event();
this._color = undefined;
this._colorSubscription = undefined;
this._outlineColor = undefined;
this._outlineColorSubscription = undefined;
this._outlineWidth = undefined;
this._outlineWidthSubscription = undefined;
this.color = options.color;
this.outlineColor = options.outlineColor;
this.outlineWidth = options.outlineWidth;
}
defineProperties(PolylineOutlineMaterialProperty.prototype, {
/**
* Gets a value indicating if this property is constant. A property is considered
* constant if getValue always returns the same result for the current definition.
* @memberof PolylineOutlineMaterialProperty.prototype
*
* @type {Boolean}
* @readonly
*/
isConstant : {
get : function() {
return Property.isConstant(this._color) && Property.isConstant(this._outlineColor) && Property.isConstant(this._outlineWidth);
}
},
/**
* Gets the event that is raised whenever the definition of this property changes.
* The definition is considered to have changed if a call to getValue would return
* a different result for the same time.
* @memberof PolylineOutlineMaterialProperty.prototype
*
* @type {Event}
* @readonly
*/
definitionChanged : {
get : function() {
return this._definitionChanged;
}
},
/**
* Gets or sets the Property specifying the {@link Color} of the line.
* @memberof PolylineOutlineMaterialProperty.prototype
* @type {Property}
* @default Color.WHITE
*/
color : createPropertyDescriptor('color'),
/**
* Gets or sets the Property specifying the {@link Color} of the outline.
* @memberof PolylineOutlineMaterialProperty.prototype
* @type {Property}
* @default Color.BLACK
*/
outlineColor : createPropertyDescriptor('outlineColor'),
/**
* Gets or sets the numeric Property specifying the width of the outline.
* @memberof PolylineOutlineMaterialProperty.prototype
* @type {Property}
* @default 1.0
*/
outlineWidth : createPropertyDescriptor('outlineWidth')
});
/**
* Gets the {@link Material} type at the provided time.
*
* @param {JulianDate} time The time for which to retrieve the type.
* @returns {String} The type of material.
*/
PolylineOutlineMaterialProperty.prototype.getType = function(time) {
return 'PolylineOutline';
};
/**
* Gets the value of the property at the provided time.
*
* @param {JulianDate} time The time for which to retrieve the value.
* @param {Object} [result] The object to store the value into, if omitted, a new instance is created and returned.
* @returns {Object} The modified result parameter or a new instance if the result parameter was not supplied.
*/
PolylineOutlineMaterialProperty.prototype.getValue = function(time, result) {
if (!defined(result)) {
result = {};
}
result.color = Property.getValueOrClonedDefault(this._color, time, defaultColor, result.color);
result.outlineColor = Property.getValueOrClonedDefault(this._outlineColor, time, defaultOutlineColor, result.outlineColor);
result.outlineWidth = Property.getValueOrDefault(this._outlineWidth, time, defaultOutlineWidth);
return result;
};
/**
* Compares this property to the provided property and returns
* <code>true</code> if they are equal, <code>false</code> otherwise.
*
* @param {Property} [other] The other property.
* @returns {Boolean} <code>true</code> if left and right are equal, <code>false</code> otherwise.
*/
PolylineOutlineMaterialProperty.prototype.equals = function(other) {
return this === other || //
(other instanceof PolylineOutlineMaterialProperty && //
Property.equals(this._color, other._color) && //
Property.equals(this._outlineColor, other._outlineColor) && //
Property.equals(this._outlineWidth, other._outlineWidth));
};
return PolylineOutlineMaterialProperty;
});