Terrain data for a single tile from a Google Earth Enterprise server.
Name | Type | Description | |||||||||||||||||||||||||||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
options |
Object |
Object with the following properties:
|
- TerrainData
- HeightTerrainData
- QuantizedMeshTerrainData
Example:
var buffer = ...
var childTileMask = ...
var terrainData = new Cesium.GoogleEarthEnterpriseTerrainData({
buffer : heightBuffer,
childTileMask : childTileMask
});
See:
Members
-
credits : Array.<Credit>
-
An array of credits for this tile
-
The water mask included in this terrain data, if any. A water mask is a rectangular Uint8Array or image where a value of 255 indicates water and a value of 0 indicates land. Values in between 0 and 255 are allowed as well to smoothly blend between land and water.
Methods
-
Computes the terrain height at a specified longitude and latitude.
Name Type Description rectangle
Rectangle The rectangle covered by this terrain data. longitude
Number The longitude in radians. latitude
Number The latitude in radians. Returns:
The terrain height at the specified position. If the position is outside the rectangle, this method will extrapolate the height, which is likely to be wildly incorrect for positions far outside the rectangle. -
Determines if a given child tile is available, based on the
HeightmapTerrainData.childTileMask
. The given child tile coordinates are assumed to be one of the four children of this tile. If non-child tile coordinates are given, the availability of the southeast child tile is returned.Name Type Description thisX
Number The tile X coordinate of this (the parent) tile. thisY
Number The tile Y coordinate of this (the parent) tile. childX
Number The tile X coordinate of the child tile to check for availability. childY
Number The tile Y coordinate of the child tile to check for availability. Returns:
True if the child tile is available; otherwise, false. -
upsample(tilingScheme, thisX, thisY, thisLevel, descendantX, descendantY, descendantLevel) → Promise.<HeightmapTerrainData>|undefined
-
Upsamples this terrain data for use by a descendant tile. The resulting instance will contain a subset of the height samples in this instance, interpolated if necessary.
Name Type Description tilingScheme
TilingScheme The tiling scheme of this terrain data. thisX
Number The X coordinate of this tile in the tiling scheme. thisY
Number The Y coordinate of this tile in the tiling scheme. thisLevel
Number The level of this tile in the tiling scheme. descendantX
Number The X coordinate within the tiling scheme of the descendant tile for which we are upsampling. descendantY
Number The Y coordinate within the tiling scheme of the descendant tile for which we are upsampling. descendantLevel
Number The level within the tiling scheme of the descendant tile for which we are upsampling. Returns:
A promise for upsampled heightmap terrain data for the descendant tile, or undefined if too many asynchronous upsample operations are in progress and the request has been deferred. -
Gets a value indicating whether or not this terrain data was created by upsampling lower resolution terrain data. If this value is false, the data was obtained from some other source, such as by downloading it from a remote server. This method should return true for instances returned from a call to
HeightmapTerrainData#upsample
.Returns:
True if this instance was created by upsampling; otherwise, false.