HeightmapTerrainData
Terrain data for a single tile where the terrain data is represented as a heightmap. A heightmap is a rectangular array of heights in row-major order from north to south and west to east.
const buffer = ...
const heightBuffer = new Uint16Array(buffer, 0, that._heightmapWidth * that._heightmapWidth);
const childTileMask = new Uint8Array(buffer, heightBuffer.byteLength, 1)[0];
const waterMask = new Uint8Array(buffer, heightBuffer.byteLength + 1, buffer.byteLength - heightBuffer.byteLength - 1);
const terrainData = new HeightmapTerrainData({
buffer : heightBuffer,
width : 65,
height : 65,
childTileMask : childTileMask,
waterMask : waterMask
});See also
Types
Functions
Computes the terrain height at a specified longitude and latitude.
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.
Upsamples this terrain data for use by a descendant tile.
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.
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.