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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 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 | 46x 46x 46x 46x 46x 1x 6x 6x 1x 5x 5x 10x 1x 4x 54x 1x 1x 25x 25x 1x 29x 29x 29x 29x 2x 27x 27x 26x 27x 27x 27x 52x 52x 52x 51x 51x 52x 27x 27x 1x 53x 53x 53x 43x 43x 43x 77x 77x 77x 10x 53x 1x 5x 1x 63x | import defined from "../Core/defined.js";
import DeveloperError from "../Core/DeveloperError.js";
import Event from "../Core/Event.js";
import EventHelper from "../Core/EventHelper.js";
import JulianDate from "../Core/JulianDate.js";
import ReferenceFrame from "../Core/ReferenceFrame.js";
import Property from "./Property.js";
/**
* A {@link Property} whose value is an array whose items are the computed value
* of other PositionProperty instances.
*
* @alias PositionPropertyArray
* @constructor
*
* @param {Property[]} [value] An array of Property instances.
* @param {ReferenceFrame} [referenceFrame=ReferenceFrame.FIXED] The reference frame in which the position is defined.
*/
function PositionPropertyArray(value, referenceFrame) {
this._value = undefined;
this._definitionChanged = new Event();
this._eventHelper = new EventHelper();
this._referenceFrame = referenceFrame ?? ReferenceFrame.FIXED;
this.setValue(value);
}
Object.defineProperties(PositionPropertyArray.prototype, {
/**
* Gets a value indicating if this property is constant. This property
* is considered constant if all property items in the array are constant.
* @memberof PositionPropertyArray.prototype
*
* @type {boolean}
* @readonly
*/
isConstant: {
get: function () {
const value = this._value;
if (!defined(value)) {
return true;
}
const length = value.length;
for (let i = 0; i < length; i++) {
if (!Property.isConstant(value[i])) {
return false;
}
}
return true;
},
},
/**
* 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 or one of the properties in the array also changes.
* @memberof PositionPropertyArray.prototype
*
* @type {Event}
* @readonly
*/
definitionChanged: {
get: function () {
return this._definitionChanged;
},
},
/**
* Gets the reference frame in which the position is defined.
* @memberof PositionPropertyArray.prototype
* @type {ReferenceFrame}
* @default ReferenceFrame.FIXED;
*/
referenceFrame: {
get: function () {
return this._referenceFrame;
},
},
});
const timeScratch = new JulianDate();
/**
* Gets the value of the property.
*
* @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[]} The modified result parameter or a new instance if the result parameter was not supplied.
*/
PositionPropertyArray.prototype.getValue = function (time, result) {
Iif (!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[]} The modified result parameter or a new instance if the result parameter was not supplied.
*/
PositionPropertyArray.prototype.getValueInReferenceFrame = function (
time,
referenceFrame,
result,
) {
//>>includeStart('debug', pragmas.debug);
Iif (!defined(time)) {
throw new DeveloperError("time is required.");
}
Iif (!defined(referenceFrame)) {
throw new DeveloperError("referenceFrame is required.");
}
//>>includeEnd('debug');
const value = this._value;
if (!defined(value)) {
return undefined;
}
const length = value.length;
if (!defined(result)) {
result = new Array(length);
}
let i = 0;
let x = 0;
while (i < length) {
const property = value[i];
const itemValue = property.getValueInReferenceFrame(
time,
referenceFrame,
result[i],
);
if (defined(itemValue)) {
result[x] = itemValue;
x++;
}
i++;
}
result.length = x;
return result;
};
/**
* Sets the value of the property.
*
* @param {Property[]} value An array of Property instances.
*/
PositionPropertyArray.prototype.setValue = function (value) {
const eventHelper = this._eventHelper;
eventHelper.removeAll();
if (defined(value)) {
this._value = value.slice();
const length = value.length;
for (let i = 0; i < length; i++) {
const property = value[i];
Eif (defined(property)) {
eventHelper.add(
property.definitionChanged,
PositionPropertyArray.prototype._raiseDefinitionChanged,
this,
);
}
}
} else {
this._value = undefined;
}
this._definitionChanged.raiseEvent(this);
};
/**
* 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.
*/
PositionPropertyArray.prototype.equals = function (other) {
return (
this === other || //
(other instanceof PositionPropertyArray && //
this._referenceFrame === other._referenceFrame && //
Property.arrayEquals(this._value, other._value))
);
};
PositionPropertyArray.prototype._raiseDefinitionChanged = function () {
this._definitionChanged.raiseEvent(this);
};
export default PositionPropertyArray;
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