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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 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 | 21x 21x 21x 21x 1x 17x 41x 5x 1x 1x 14x 1x 14x 1x 29x 29x 1x 28x 28x 23x 5x 1x 7x 1x 32x | 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 TimeIntervalCollection from "../Core/TimeIntervalCollection.js";
import PositionProperty from "./PositionProperty.js";
import Property from "./Property.js";
/**
* A {@link TimeIntervalCollectionProperty} which is also a {@link PositionProperty}.
*
* @alias TimeIntervalCollectionPositionProperty
* @constructor
*
* @param {ReferenceFrame} [referenceFrame=ReferenceFrame.FIXED] The reference frame in which the position is defined.
*/
function TimeIntervalCollectionPositionProperty(referenceFrame) {
this._definitionChanged = new Event();
this._intervals = new TimeIntervalCollection();
this._intervals.changedEvent.addEventListener(
TimeIntervalCollectionPositionProperty.prototype._intervalsChanged,
this,
);
this._referenceFrame = referenceFrame ?? ReferenceFrame.FIXED;
}
Object.defineProperties(TimeIntervalCollectionPositionProperty.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 TimeIntervalCollectionPositionProperty.prototype
*
* @type {boolean}
* @readonly
*/
isConstant: {
get: function () {
return this._intervals.isEmpty;
},
},
/**
* 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 TimeIntervalCollectionPositionProperty.prototype
*
* @type {Event}
* @readonly
*/
definitionChanged: {
get: function () {
return this._definitionChanged;
},
},
/**
* Gets the interval collection.
* @memberof TimeIntervalCollectionPositionProperty.prototype
* @type {TimeIntervalCollection}
* @readonly
*/
intervals: {
get: function () {
return this._intervals;
},
},
/**
* Gets the reference frame in which the position is defined.
* @memberof TimeIntervalCollectionPositionProperty.prototype
* @type {ReferenceFrame}
* @readonly
* @default ReferenceFrame.FIXED;
*/
referenceFrame: {
get: function () {
return this._referenceFrame;
},
},
});
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 {object} [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.
*/
TimeIntervalCollectionPositionProperty.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.
*/
TimeIntervalCollectionPositionProperty.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 position = this._intervals.findDataForIntervalContainingDate(time);
if (defined(position)) {
return PositionProperty.convertToReferenceFrame(
time,
position,
this._referenceFrame,
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.
*/
TimeIntervalCollectionPositionProperty.prototype.equals = function (other) {
return (
this === other || //
(other instanceof TimeIntervalCollectionPositionProperty && //
this._intervals.equals(other._intervals, Property.equals) && //
this._referenceFrame === other._referenceFrame)
);
};
/**
* @private
*/
TimeIntervalCollectionPositionProperty.prototype._intervalsChanged =
function () {
this._definitionChanged.raiseEvent(this);
};
export default TimeIntervalCollectionPositionProperty;
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