/
PolygonGraphics.js
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/
PolygonGraphics.js
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/*global define*/
define([
'../Core/defaultValue',
'../Core/defined',
'../Core/defineProperties',
'../Core/DeveloperError',
'../Core/Event',
'./createMaterialPropertyDescriptor',
'./createPropertyDescriptor'
], function(
defaultValue,
defined,
defineProperties,
DeveloperError,
Event,
createMaterialPropertyDescriptor,
createPropertyDescriptor) {
'use strict';
/**
* Describes a polygon defined by an hierarchy of linear rings which make up the outer shape and any nested holes.
* The polygon conforms to the curvature of the globe and can be placed on the surface or
* at altitude and can optionally be extruded into a volume.
*
* @alias PolygonGraphics
* @constructor
*
* @param {Object} [options] Object with the following properties:
* @param {Property} [options.hierarchy] A Property specifying the {@link PolygonHierarchy}.
* @param {Property} [options.height=0] A numeric Property specifying the altitude of the polygon relative to the ellipsoid surface.
* @param {Property} [options.extrudedHeight] A numeric Property specifying the altitude of the polygon's extruded face relative to the ellipsoid surface.
* @param {Property} [options.show=true] A boolean Property specifying the visibility of the polygon.
* @param {Property} [options.fill=true] A boolean Property specifying whether the polygon is filled with the provided material.
* @param {MaterialProperty} [options.material=Color.WHITE] A Property specifying the material used to fill the polygon.
* @param {Property} [options.outline=false] A boolean Property specifying whether the polygon is outlined.
* @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.
* @param {Property} [options.stRotation=0.0] A numeric property specifying the rotation of the polygon texture counter-clockwise from north.
* @param {Property} [options.granularity=Cesium.Math.RADIANS_PER_DEGREE] A numeric Property specifying the angular distance between each latitude and longitude point.
* @param {Property} [options.perPositionHeight=false] A boolean specifying whether or not the the height of each position is used.
*
* @see Entity
* @demo {@link http://cesiumjs.org/Cesium/Apps/Sandcastle/index.html?src=Polygon.html|Cesium Sandcastle Polygon Demo}
*/
function PolygonGraphics(options) {
this._show = undefined;
this._showSubscription = undefined;
this._material = undefined;
this._materialSubscription = undefined;
this._hierarchy = undefined;
this._hierarchySubscription = undefined;
this._height = undefined;
this._heightSubscription = undefined;
this._extrudedHeight = undefined;
this._extrudedHeightSubscription = undefined;
this._granularity = undefined;
this._granularitySubscription = undefined;
this._stRotation = undefined;
this._stRotationSubscription = undefined;
this._perPositionHeight = undefined;
this._perPositionHeightSubscription = undefined;
this._outline = undefined;
this._outlineSubscription = undefined;
this._outlineColor = undefined;
this._outlineColorSubscription = undefined;
this._outlineWidth = undefined;
this._outlineWidthSubscription = undefined;
this._definitionChanged = new Event();
this._fill = undefined;
this._fillSubscription = undefined;
this.merge(defaultValue(options, defaultValue.EMPTY_OBJECT));
}
defineProperties(PolygonGraphics.prototype, {
/**
* Gets the event that is raised whenever a property or sub-property is changed or modified.
* @memberof PolygonGraphics.prototype
*
* @type {Event}
* @readonly
*/
definitionChanged : {
get : function() {
return this._definitionChanged;
}
},
/**
* Gets or sets the boolean Property specifying the visibility of the polygon.
* @memberof PolygonGraphics.prototype
* @type {Property}
* @default true
*/
show : createPropertyDescriptor('show'),
/**
* Gets or sets the Property specifying the material used to fill the polygon.
* @memberof PolygonGraphics.prototype
* @type {MaterialProperty}
* @default Color.WHITE
*/
material : createMaterialPropertyDescriptor('material'),
/**
* Gets or sets the Property specifying the {@link PolygonHierarchy}.
* @memberof PolygonGraphics.prototype
* @type {Property}
*/
hierarchy : createPropertyDescriptor('hierarchy'),
/**
* Gets or sets the numeric Property specifying the constant altitude of the polygon.
* @memberof PolygonGraphics.prototype
* @type {Property}
* @default 0.0
*/
height : createPropertyDescriptor('height'),
/**
* Gets or sets the numeric Property specifying the altitude of the polygon extrusion.
* If {@link PolygonGraphics#perPositionHeight} is false, the volume starts at {@link PolygonGraphics#height} and ends at this altitude.
* If {@link PolygonGraphics#perPositionHeight} is true, the volume starts at the height of each {@link PolygonGraphics#hierarchy} position and ends at this altitude.
* @memberof PolygonGraphics.prototype
* @type {Property}
*/
extrudedHeight : createPropertyDescriptor('extrudedHeight'),
/**
* Gets or sets the numeric Property specifying the angular distance between points on the polygon.
* @memberof PolygonGraphics.prototype
* @type {Property}
* @default {CesiumMath.RADIANS_PER_DEGREE}
*/
granularity : createPropertyDescriptor('granularity'),
/**
* Gets or sets the numeric property specifying the rotation of the polygon texture counter-clockwise from north.
* @memberof PolygonGraphics.prototype
* @type {Property}
* @default 0
*/
stRotation : createPropertyDescriptor('stRotation'),
/**
* Gets or sets the boolean Property specifying whether the polygon is filled with the provided material.
* @memberof PolygonGraphics.prototype
* @type {Property}
* @default true
*/
fill : createPropertyDescriptor('fill'),
/**
* Gets or sets the Property specifying whether the polygon is outlined.
* @memberof PolygonGraphics.prototype
* @type {Property}
* @default false
*/
outline : createPropertyDescriptor('outline'),
/**
* Gets or sets the Property specifying the {@link Color} of the outline.
* @memberof PolygonGraphics.prototype
* @type {Property}
* @default Color.BLACK
*/
outlineColor : createPropertyDescriptor('outlineColor'),
/**
* Gets or sets the numeric Property specifying the width of the outline.
* @memberof PolygonGraphics.prototype
* @type {Property}
* @default 1.0
*/
outlineWidth : createPropertyDescriptor('outlineWidth'),
/**
* Gets or sets the boolean specifying whether or not the the height of each position is used.
* If true, the shape will have non-uniform altitude defined by the height of each {@link PolygonGraphics#hierarchy} position.
* If false, the shape will have a constant altitude as specified by {@link PolygonGraphics#height}.
* @memberof PolygonGraphics.prototype
* @type {Property}
*/
perPositionHeight : createPropertyDescriptor('perPositionHeight')
});
/**
* Duplicates this instance.
*
* @param {PolygonGraphics} [result] The object onto which to store the result.
* @returns {PolygonGraphics} The modified result parameter or a new instance if one was not provided.
*/
PolygonGraphics.prototype.clone = function(result) {
if (!defined(result)) {
return new PolygonGraphics(this);
}
result.show = this.show;
result.material = this.material;
result.hierarchy = this.hierarchy;
result.height = this.height;
result.extrudedHeight = this.extrudedHeight;
result.granularity = this.granularity;
result.stRotation = this.stRotation;
result.fill = this.fill;
result.outline = this.outline;
result.outlineColor = this.outlineColor;
result.outlineWidth = this.outlineWidth;
result.perPositionHeight = this.perPositionHeight;
return result;
};
/**
* Assigns each unassigned property on this object to the value
* of the same property on the provided source object.
*
* @param {PolygonGraphics} source The object to be merged into this object.
*/
PolygonGraphics.prototype.merge = function(source) {
//>>includeStart('debug', pragmas.debug);
if (!defined(source)) {
throw new DeveloperError('source is required.');
}
//>>includeEnd('debug');
this.show = defaultValue(this.show, source.show);
this.material = defaultValue(this.material, source.material);
this.hierarchy = defaultValue(this.hierarchy, source.hierarchy);
this.height = defaultValue(this.height, source.height);
this.extrudedHeight = defaultValue(this.extrudedHeight, source.extrudedHeight);
this.granularity = defaultValue(this.granularity, source.granularity);
this.stRotation = defaultValue(this.stRotation, source.stRotation);
this.fill = defaultValue(this.fill, source.fill);
this.outline = defaultValue(this.outline, source.outline);
this.outlineColor = defaultValue(this.outlineColor, source.outlineColor);
this.outlineWidth = defaultValue(this.outlineWidth, source.outlineWidth);
this.perPositionHeight = defaultValue(this.perPositionHeight, source.perPositionHeight);
};
return PolygonGraphics;
});