# CompositeMaterialProperty

#### new Cesium.CompositeMaterialProperty()
engine/Source/DataSources/CompositeMaterialProperty.js 13

A `CompositeProperty` which is also a `MaterialProperty`.

### Members

#### readonly definitionChanged : Event
engine/Source/DataSources/CompositeMaterialProperty.js 45

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.

#### intervals : TimeIntervalCollection
engine/Source/DataSources/CompositeMaterialProperty.js 56

Gets the interval collection.

#### readonly isConstant : boolean
engine/Source/DataSources/CompositeMaterialProperty.js 31

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.

### Methods

#### equals(other) → boolean
engine/Source/DataSources/CompositeMaterialProperty.js 115

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.

#### getType(time) → string
engine/Source/DataSources/CompositeMaterialProperty.js 69

Gets the `Material` type at the provided time.

Name | Type | Description
--- | --- | ---
`time` | JulianDate | The time for which to retrieve the type.

##### Returns:

The type of material.

#### getValue(time, result) → object
engine/Source/DataSources/CompositeMaterialProperty.js 92

Gets the value of the property at the provided time.

Name | Type | Description
--- | --- | ---
`time` | JulianDate | The time for which to retrieve the value.
`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.

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