/
PointGraphics.js
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/
PointGraphics.js
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import defaultValue from "../Core/defaultValue.js";
import defined from "../Core/defined.js";
import DeveloperError from "../Core/DeveloperError.js";
import Event from "../Core/Event.js";
import createPropertyDescriptor from "./createPropertyDescriptor.js";
/**
* @typedef {Object} PointGraphics.ConstructorOptions
*
* Initialization options for the PointGraphics constructor
*
* @property {Property | boolean} [show=true] A boolean Property specifying the visibility of the point.
* @property {Property | number} [pixelSize=1] A numeric Property specifying the size in pixels.
* @property {Property | HeightReference} [heightReference=HeightReference.NONE] A Property specifying what the height is relative to.
* @property {Property | Color} [color=Color.WHITE] A Property specifying the {@link Color} of the point.
* @property {Property | Color} [outlineColor=Color.BLACK] A Property specifying the {@link Color} of the outline.
* @property {Property | number} [outlineWidth=0] A numeric Property specifying the the outline width in pixels.
* @property {Property | NearFarScalar} [scaleByDistance] A {@link NearFarScalar} Property used to scale the point based on distance.
* @property {Property | NearFarScalar} [translucencyByDistance] A {@link NearFarScalar} Property used to set translucency based on distance from the camera.
* @property {Property | DistanceDisplayCondition} [distanceDisplayCondition] A Property specifying at what distance from the camera that this point will be displayed.
* @property {Property | number} [disableDepthTestDistance] A Property specifying the distance from the camera at which to disable the depth test to.
*/
/**
* Describes a graphical point located at the position of the containing {@link Entity}.
*
* @alias PointGraphics
* @constructor
*
* @param {PointGraphics.ConstructorOptions} [options] Object describing initialization options
*/
function PointGraphics(options) {
this._definitionChanged = new Event();
this._show = undefined;
this._showSubscription = undefined;
this._pixelSize = undefined;
this._pixelSizeSubscription = undefined;
this._heightReference = undefined;
this._heightReferenceSubscription = undefined;
this._color = undefined;
this._colorSubscription = undefined;
this._outlineColor = undefined;
this._outlineColorSubscription = undefined;
this._outlineWidth = undefined;
this._outlineWidthSubscription = undefined;
this._scaleByDistance = undefined;
this._scaleByDistanceSubscription = undefined;
this._translucencyByDistance = undefined;
this._translucencyByDistanceSubscription = undefined;
this._distanceDisplayCondition = undefined;
this._distanceDisplayConditionSubscription = undefined;
this._disableDepthTestDistance = undefined;
this._disableDepthTestDistanceSubscription = undefined;
this.merge(defaultValue(options, defaultValue.EMPTY_OBJECT));
}
Object.defineProperties(PointGraphics.prototype, {
/**
* Gets the event that is raised whenever a property or sub-property is changed or modified.
* @memberof PointGraphics.prototype
*
* @type {Event}
* @readonly
*/
definitionChanged: {
get: function () {
return this._definitionChanged;
},
},
/**
* Gets or sets the boolean Property specifying the visibility of the point.
* @memberof PointGraphics.prototype
* @type {Property|undefined}
* @default true
*/
show: createPropertyDescriptor("show"),
/**
* Gets or sets the numeric Property specifying the size in pixels.
* @memberof PointGraphics.prototype
* @type {Property|undefined}
* @default 1
*/
pixelSize: createPropertyDescriptor("pixelSize"),
/**
* Gets or sets the Property specifying the {@link HeightReference}.
* @memberof PointGraphics.prototype
* @type {Property|undefined}
* @default HeightReference.NONE
*/
heightReference: createPropertyDescriptor("heightReference"),
/**
* Gets or sets the Property specifying the {@link Color} of the point.
* @memberof PointGraphics.prototype
* @type {Property|undefined}
* @default Color.WHITE
*/
color: createPropertyDescriptor("color"),
/**
* Gets or sets the Property specifying the {@link Color} of the outline.
* @memberof PointGraphics.prototype
* @type {Property|undefined}
* @default Color.BLACK
*/
outlineColor: createPropertyDescriptor("outlineColor"),
/**
* Gets or sets the numeric Property specifying the the outline width in pixels.
* @memberof PointGraphics.prototype
* @type {Property|undefined}
* @default 0
*/
outlineWidth: createPropertyDescriptor("outlineWidth"),
/**
* Gets or sets the {@link NearFarScalar} Property used to scale the point based on distance.
* If undefined, a constant size is used.
* @memberof PointGraphics.prototype
* @type {Property|undefined}
*/
scaleByDistance: createPropertyDescriptor("scaleByDistance"),
/**
* Gets or sets {@link NearFarScalar} Property specifying the translucency of the point based on the distance from the camera.
* A point's translucency will interpolate between the {@link NearFarScalar#nearValue} and
* {@link NearFarScalar#farValue} while the camera distance falls within the lower and upper bounds
* of the specified {@link NearFarScalar#near} and {@link NearFarScalar#far}.
* Outside of these ranges the points's translucency remains clamped to the nearest bound.
* @memberof PointGraphics.prototype
* @type {Property|undefined}
*/
translucencyByDistance: createPropertyDescriptor("translucencyByDistance"),
/**
* Gets or sets the {@link DistanceDisplayCondition} Property specifying at what distance from the camera that this point will be displayed.
* @memberof PointGraphics.prototype
* @type {Property|undefined}
*/
distanceDisplayCondition: createPropertyDescriptor(
"distanceDisplayCondition"
),
/**
* Gets or sets the distance from the camera at which to disable the depth test to, for example, prevent clipping against terrain.
* When set to zero, the depth test is always applied. When set to Number.POSITIVE_INFINITY, the depth test is never applied.
* @memberof PointGraphics.prototype
* @type {Property|undefined}
*/
disableDepthTestDistance: createPropertyDescriptor(
"disableDepthTestDistance"
),
});
/**
* Duplicates this instance.
*
* @param {PointGraphics} [result] The object onto which to store the result.
* @returns {PointGraphics} The modified result parameter or a new instance if one was not provided.
*/
PointGraphics.prototype.clone = function (result) {
if (!defined(result)) {
return new PointGraphics(this);
}
result.show = this.show;
result.pixelSize = this.pixelSize;
result.heightReference = this.heightReference;
result.color = this.color;
result.outlineColor = this.outlineColor;
result.outlineWidth = this.outlineWidth;
result.scaleByDistance = this.scaleByDistance;
result.translucencyByDistance = this._translucencyByDistance;
result.distanceDisplayCondition = this.distanceDisplayCondition;
result.disableDepthTestDistance = this.disableDepthTestDistance;
return result;
};
/**
* Assigns each unassigned property on this object to the value
* of the same property on the provided source object.
*
* @param {PointGraphics} source The object to be merged into this object.
*/
PointGraphics.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.pixelSize = defaultValue(this.pixelSize, source.pixelSize);
this.heightReference = defaultValue(
this.heightReference,
source.heightReference
);
this.color = defaultValue(this.color, source.color);
this.outlineColor = defaultValue(this.outlineColor, source.outlineColor);
this.outlineWidth = defaultValue(this.outlineWidth, source.outlineWidth);
this.scaleByDistance = defaultValue(
this.scaleByDistance,
source.scaleByDistance
);
this.translucencyByDistance = defaultValue(
this._translucencyByDistance,
source.translucencyByDistance
);
this.distanceDisplayCondition = defaultValue(
this.distanceDisplayCondition,
source.distanceDisplayCondition
);
this.disableDepthTestDistance = defaultValue(
this.disableDepthTestDistance,
source.disableDepthTestDistance
);
};
export default PointGraphics;