Cesium3DTilesVoxelProvider
查阅Mars3D API

new Cesium.Cesium3DTilesVoxelProvider(options)
engine/Source/Scene/Cesium3DTilesVoxelProvider.js 47

A VoxelProvider that fetches voxel data from a 3D Tiles tileset.

Implements the VoxelProvider interface.

This object is normally not instantiated directly, use Cesium3DTilesVoxelProvider.fromUrl.
参数名称 类型 描述信息
options object Object with the following properties:
Experimental

This feature is not final and is subject to change without Cesium's standard deprecation policy.

参考:

继承

成员(属性)

readonly componentTypes : Array.<MetadataComponentType>
engine/Source/Scene/VoxelProvider.js 149

Gets the metadata component types. This should not be called before VoxelProvider#ready returns true.
继承自:

readonly dimensions : Cartesian3
engine/Source/Scene/VoxelProvider.js 89

Gets the number of voxels per dimension of a tile. This is the same for all tiles in the dataset. This should not be called before VoxelProvider#ready returns true.
继承自:

readonly globalTransform : Matrix4|undefined
engine/Source/Scene/VoxelProvider.js 28

A transform from local space to global space. If undefined, the identity matrix will be used instead.
继承自:

readonly maxBounds : Cartesian3|undefined
engine/Source/Scene/VoxelProvider.js 77

Gets the maximum bounds. If undefined, the shape's default maximum bounds will be used instead. This should not be called before VoxelProvider#ready returns true.
继承自:

readonly maximumTileCount : number|undefined
engine/Source/Scene/VoxelProvider.js 185

The maximum number of tiles that exist for this provider. This value is used as a hint to the voxel renderer to allocate an appropriate amount of GPU memory. If this value is not known it can be undefined. This should not be called before VoxelProvider#ready returns true.
继承自:

readonly maximumValues : Array.<Array.<number>>|undefined
engine/Source/Scene/VoxelProvider.js 173

Gets the metadata maximum values. This should not be called before VoxelProvider#ready returns true.
继承自:

readonly minBounds : Cartesian3|undefined
engine/Source/Scene/VoxelProvider.js 64

Gets the minimum bounds. If undefined, the shape's default minimum bounds will be used instead. This should not be called before VoxelProvider#ready returns true.
继承自:

readonly minimumValues : Array.<Array.<number>>|undefined
engine/Source/Scene/VoxelProvider.js 161

Gets the metadata minimum values. This should not be called before VoxelProvider#ready returns true.
继承自:

readonly names : Array.<string>
engine/Source/Scene/VoxelProvider.js 125

Gets the metadata names. This should not be called before VoxelProvider#ready returns true.
继承自:

readonly paddingAfter : Cartesian3|undefined
engine/Source/Scene/VoxelProvider.js 113

Gets the number of padding voxels after the tile. This improves rendering quality when sampling the edge of a tile, but it increases memory usage. This should not be called before VoxelProvider#ready returns true.
继承自:

readonly paddingBefore : Cartesian3|undefined
engine/Source/Scene/VoxelProvider.js 101

Gets the number of padding voxels before the tile. This improves rendering quality when sampling the edge of a tile, but it increases memory usage. This should not be called before VoxelProvider#ready returns true.
继承自:

readonly shape : VoxelShapeType
engine/Source/Scene/VoxelProvider.js 51

Gets the VoxelShapeType This should not be called before VoxelProvider#ready returns true.
继承自:

readonly shapeTransform : Matrix4|undefined
engine/Source/Scene/VoxelProvider.js 39

A transform from shape space to local space. If undefined, the identity matrix will be used instead.
继承自:

readonly types : Array.<MetadataType>
engine/Source/Scene/VoxelProvider.js 137

Gets the metadata types. This should not be called before VoxelProvider#ready returns true.
继承自:

方法

static Cesium.Cesium3DTilesVoxelProvider.fromUrl(url) → Promise.<Cesium3DTilesVoxelProvider>
engine/Source/Scene/Cesium3DTilesVoxelProvider.js 108

Creates a VoxelProvider that fetches voxel data from a 3D Tiles tileset.
参数名称 类型 描述信息
url Resource | string The URL to a tileset JSON file
返回值:
The created provider
Throws:
  • RuntimeException : Root must have content
  • RuntimeException : Root tile content must have 3DTILES_content_voxels extension
  • RuntimeException : Root tile must have implicit tiling
  • RuntimeException : Tileset must have a metadata schema
  • RuntimeException : Only box, region and 3DTILES_bounding_volume_cylinder are supported in Cesium3DTilesVoxelProvider

requestData(options) → Promise.<Array.<Array>>|undefined
engine/Source/Scene/VoxelProvider.js 229

Requests the data for a given tile. The data is a flattened 3D array ordered by X, then Y, then Z. This function should not be called before VoxelProvider#ready returns true.
参数名称 类型 描述信息
options object 可选 Object with the following properties:
参数名称 类型 默认值 描述信息
tileLevel number 0 可选 The tile's level.
tileX number 0 可选 The tile's X coordinate.
tileY number 0 可选 The tile's Y coordinate.
tileZ number 0 可选 The tile's Z coordinate.
返回值:
A promise to an array of typed arrays containing the requested voxel data or undefined if there was a problem loading the data.
继承自:
packages/engine
packages/widgets