ConstantPositionProperty

new Cesium.ConstantPositionProperty(value, referenceFrame)
engine/Source/DataSources/ConstantPositionProperty.js 20

A PositionProperty whose value does not change in respect to the ReferenceFrame in which is it defined.
Name Type Default Description
value Cartesian3 optional The property value.
referenceFrame ReferenceFrame ReferenceFrame.FIXED optional The reference frame in which the position is defined.

Members

readonly definitionChanged : Event
engine/Source/DataSources/ConstantPositionProperty.js 51

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.

readonly isConstant : boolean
engine/Source/DataSources/ConstantPositionProperty.js 35

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.

referenceFrame : ReferenceFrame
engine/Source/DataSources/ConstantPositionProperty.js 62

Gets the reference frame in which the position is defined.
Default Value: ReferenceFrame.FIXED;

Methods

equals(other) → boolean
engine/Source/DataSources/ConstantPositionProperty.js 144

Compares this property to the provided property and returns true if they are equal, false otherwise.
Name Type Description
other Property optional The other property.
Returns:
true if left and right are equal, false otherwise.

getValue(time, result) → object
engine/Source/DataSources/ConstantPositionProperty.js 78

Gets the value of the property at the provided time in the fixed frame.
Name Type Default Description
time JulianDate JulianDate.now() optional The time for which to retrieve the value. If omitted, the current system time is used.
result object optional The object to store the value into, if omitted, a new instance is created and returned.
Returns:
The modified result parameter or a new instance if the result parameter was not supplied.

getValueInReferenceFrame(time, referenceFrame, result) → Cartesian3
engine/Source/DataSources/ConstantPositionProperty.js 114

Gets the value of the property at the provided time and in the provided reference frame.
Name Type Description
time JulianDate The time for which to retrieve the value.
referenceFrame ReferenceFrame The desired referenceFrame of the result.
result Cartesian3 optional The object to store the value into, if omitted, a new instance is created and returned.
Returns:
The modified result parameter or a new instance if the result parameter was not supplied.

setValue(value, referenceFrame)
engine/Source/DataSources/ConstantPositionProperty.js 91

Sets the value of the property.
Name Type Default Description
value Cartesian3 The property value.
referenceFrame ReferenceFrame this.referenceFrame optional The reference frame in which the position is defined.
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