MetadataClassProperty
查阅Mars3D API

new Cesium.MetadataClassProperty(options)
engine/Source/Scene/MetadataClassProperty.js 47

A metadata property, as part of a MetadataClass.

See the 3D Metadata Specification for 3D Tiles

参数名称 类型 描述信息
options object Object with the following properties:
参数名称 类型 默认值 描述信息
id string The ID of the property.
type MetadataType The type of the property such as SCALAR, VEC2, VEC3.
componentType MetadataComponentType 可选 The component type of the property. This includes integer (e.g. INT8 or UINT16), and floating point (FLOAT32 and FLOAT64) values.
enumType MetadataEnum 可选 The enum type of the property. Only defined when type is ENUM.
isArray boolean false 可选 True if a property is an array (either fixed length or variable length), false otherwise.
isVariableLengthArray boolean false 可选 True if a property is a variable length array, false otherwise.
arrayLength number 可选 The number of array elements. Only defined for fixed length arrays.
normalized boolean false 可选 Whether the property is normalized.
min number | Array.<number> | Array.<Array.<number>> 可选 A number or an array of numbers storing the minimum allowable value of this property. Only defined when type is a numeric type.
max number | Array.<number> | Array.<Array.<number>> 可选 A number or an array of numbers storing the maximum allowable value of this property. Only defined when type is a numeric type.
offset number | Array.<number> | Array.<Array.<number>> 可选 The offset to be added to property values as part of the value transform.
scale number | Array.<number> | Array.<Array.<number>> 可选 The scale to be multiplied to property values as part of the value transform.
noData boolean | number | string | Array 可选 The no-data sentinel value that represents null values.
default boolean | number | string | Array 可选 A default value to use when an entity's property value is not defined.
required boolean false 可选 Whether the property is required.
name string 可选 The name of the property.
description string 可选 The description of the property.
semantic string 可选 An identifier that describes how this property should be interpreted.
extras * 可选 Extra user-defined properties.
extensions object 可选 An object containing extensions.
Experimental

This feature is using part of the 3D Tiles spec that is not final and is subject to change without Cesium's standard deprecation policy.

成员(属性)

readonly arrayLength : number
engine/Source/Scene/MetadataClassProperty.js 326

The number of array elements. Only defined for fixed-size arrays.

readonly componentType : MetadataComponentType
engine/Source/Scene/MetadataClassProperty.js 269

The component type of the property. This includes integer (e.g. INT8 or UINT16), and floating point (FLOAT32 and FLOAT64) values

readonly default : boolean|number|string|Array
engine/Source/Scene/MetadataClassProperty.js 391

A default value to use when an entity's property value is not defined.

readonly description : string
engine/Source/Scene/MetadataClassProperty.js 229

The description of the property.

readonly enumType : MetadataEnum
engine/Source/Scene/MetadataClassProperty.js 255

The enum type of the property. Only defined when type is ENUM.

readonly extensions : object
engine/Source/Scene/MetadataClassProperty.js 484

An object containing extensions.

readonly extras : *
engine/Source/Scene/MetadataClassProperty.js 471

Extra user-defined properties.

readonly id : string
engine/Source/Scene/MetadataClassProperty.js 203

The ID of the property.

readonly isArray : boolean
engine/Source/Scene/MetadataClassProperty.js 299

True if a property is an array (either fixed length or variable length), false otherwise.

readonly isVariableLengthArray : boolean
engine/Source/Scene/MetadataClassProperty.js 312

True if a property is a variable length array, false otherwise.

readonly max : number|Array.<number>|Array.<Array.<number>>
engine/Source/Scene/MetadataClassProperty.js 352

A number or an array of numbers storing the maximum allowable value of this property. Only defined when type is a numeric type.

readonly min : number|Array.<number>|Array.<Array.<number>>
engine/Source/Scene/MetadataClassProperty.js 365

A number or an array of numbers storing the minimum allowable value of this property. Only defined when type is a numeric type.

readonly name : string
engine/Source/Scene/MetadataClassProperty.js 216

The name of the property.

readonly noData : boolean|number|string|Array
engine/Source/Scene/MetadataClassProperty.js 378

The no-data sentinel value that represents null values

readonly normalized : boolean
engine/Source/Scene/MetadataClassProperty.js 339

Whether the property is normalized.

readonly offset : number|Array.<number>|Array.<Array.<number>>
engine/Source/Scene/MetadataClassProperty.js 445

The offset to be added to property values as part of the value transform.

readonly required : boolean
engine/Source/Scene/MetadataClassProperty.js 404

Whether the property is required.

readonly scale : number|Array.<number>|Array.<Array.<number>>
engine/Source/Scene/MetadataClassProperty.js 458

The scale to be multiplied to property values as part of the value transform.

readonly semantic : string
engine/Source/Scene/MetadataClassProperty.js 417

An identifier that describes how this property should be interpreted.

readonly type : MetadataType
engine/Source/Scene/MetadataClassProperty.js 242

The type of the property such as SCALAR, VEC2, VEC3
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