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| 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 | 32x 32x 32x 32x 1x 3x 56x 55x 4x 2x 1x 1x 46x 1x 46x 1x 51x 51x 1x 50x 50x 45x 5x 1x 8x 1x 62x | import defined from "../Core/defined.js";
import DeveloperError from "../Core/DeveloperError.js";
import Event from "../Core/Event.js";
import JulianDate from "../Core/JulianDate.js";
import ReferenceFrame from "../Core/ReferenceFrame.js";
import CompositeProperty from "./CompositeProperty.js";
import Property from "./Property.js";
/**
* A {@link CompositeProperty} which is also a {@link PositionProperty}.
*
* @alias CompositePositionProperty
* @constructor
*
* @param {ReferenceFrame} [referenceFrame=ReferenceFrame.FIXED] The reference frame in which the position is defined.
*/
function CompositePositionProperty(referenceFrame) {
this._referenceFrame = referenceFrame ?? ReferenceFrame.FIXED;
this._definitionChanged = new Event();
this._composite = new CompositeProperty();
this._composite.definitionChanged.addEventListener(
CompositePositionProperty.prototype._raiseDefinitionChanged,
this,
);
}
Object.defineProperties(CompositePositionProperty.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 CompositePositionProperty.prototype
*
* @type {boolean}
* @readonly
*/
isConstant: {
get: function () {
return this._composite.isConstant;
},
},
/**
* Gets the event that is raised whenever the definition of this property changes.
* The definition is changed whenever setValue is called with data different
* than the current value.
* @memberof CompositePositionProperty.prototype
*
* @type {Event}
* @readonly
*/
definitionChanged: {
get: function () {
return this._definitionChanged;
},
},
/**
* Gets the interval collection.
* @memberof CompositePositionProperty.prototype
*
* @type {TimeIntervalCollection}
*/
intervals: {
get: function () {
return this._composite.intervals;
},
},
/**
* Gets or sets the reference frame which this position presents itself as.
* Each PositionProperty making up this object has it's own reference frame,
* so this property merely exposes a "preferred" reference frame for clients
* to use.
* @memberof CompositePositionProperty.prototype
*
* @type {ReferenceFrame}
*/
referenceFrame: {
get: function () {
return this._referenceFrame;
},
set: function (value) {
this._referenceFrame = value;
},
},
});
const timeScratch = new JulianDate();
/**
* Gets the value of the property at the provided time in the fixed frame.
*
* @param {JulianDate} [time=JulianDate.now()] The time for which to retrieve the value. If omitted, the current system time is used.
* @param {Cartesian3} [result] The object to store the value into, if omitted, a new instance is created and returned.
* @returns {Cartesian3 | undefined} The modified result parameter or a new instance if the result parameter was not supplied.
*/
CompositePositionProperty.prototype.getValue = function (time, result) {
if (!defined(time)) {
time = JulianDate.now(timeScratch);
}
return this.getValueInReferenceFrame(time, ReferenceFrame.FIXED, result);
};
/**
* Gets the value of the property at the provided time and in the provided reference frame.
*
* @param {JulianDate} time The time for which to retrieve the value.
* @param {ReferenceFrame} referenceFrame The desired referenceFrame of the result.
* @param {Cartesian3} [result] The object to store the value into, if omitted, a new instance is created and returned.
* @returns {Cartesian3 | undefined} The modified result parameter or a new instance if the result parameter was not supplied.
*/
CompositePositionProperty.prototype.getValueInReferenceFrame = function (
time,
referenceFrame,
result,
) {
//>>includeStart('debug', pragmas.debug);
Iif (!defined(time)) {
throw new DeveloperError("time is required.");
}
if (!defined(referenceFrame)) {
throw new DeveloperError("referenceFrame is required.");
}
//>>includeEnd('debug');
const innerProperty =
this._composite._intervals.findDataForIntervalContainingDate(time);
if (defined(innerProperty)) {
return innerProperty.getValueInReferenceFrame(time, referenceFrame, result);
}
return undefined;
};
/**
* 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.
*/
CompositePositionProperty.prototype.equals = function (other) {
return (
this === other || //
(other instanceof CompositePositionProperty && //
this._referenceFrame === other._referenceFrame && //
this._composite.equals(other._composite, Property.equals))
);
};
/**
* @private
*/
CompositePositionProperty.prototype._raiseDefinitionChanged = function () {
this._definitionChanged.raiseEvent(this);
};
export default CompositePositionProperty;
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