SegmentLonLat

Extends: Segment

Source: SegmentLonLat.ts:21

Planet segment Web Mercator tile class that stored and rendered with quad tree.

Constructor

new SegmentLonLat(
node,
quadTreeStrategy,
tileZoom,
extent,
): SegmentLonLat

Instance Methods

`layerOverlap(layer)`

protected

SegmentLonLat.ts:111

Parameters

layer

TODO:
- simplify layer._extentMerc in layer.getNativeExtent(this)

`acceptForRendering(camera: Camera): boolean`

Segment.js:259

Inherited from Segment#acceptForRendering

Overrides: Segment#acceptForRendering

Returns that segment good for rendering with camera by current lod ratio.

Parameters

camera (Camera) — Camera object.

Returns

boolean

`getEntityTerrainPoint( entity: Entity, res: Vec3, normal?: Vec3, ): Vec3`

Segment.js:271

Inherited from Segment#getEntityTerrainPoint

Overrides: Segment#getEntityTerrainPoint

Returns entity terrain point.

Parameters

entity (Entity) — Entity.
res (Vec3) — Point coordinates.
normal (Vec3, optional) — Terrain point normal.

Returns

Vec3

`getTerrainPoint( xyz: Vec3, insideSegmentPosition: LonLat, res?: Vec3, normal?: Vec3, ): number`

Segment.js:288

Inherited from Segment#getTerrainPoint

Overrides: Segment#getTerrainPoint

Returns distance from object to terrain coordinates and terrain point that calculates out in the res parameter.

Parameters

xyz (Vec3) — Cartesian object position.
insideSegmentPosition (LonLat) — Geodetic object position.
res (Vec3, optional) — Result cartesian coordinates on the terrain.
normal (Vec3, optional) — Terrain point normal.

Returns

number

`projectNative(lonlat: LonLat): LonLat`

Segment.js:366

Inherited from Segment#projectNative

Overrides: Segment#projectNative

Project wgs86 to segment native projection.

Parameters

lonlat (LonLat) — Coordinates to project.

Returns

LonLat

`loadTerrain(forceLoading: boolean)`

Segment.js:374

Inherited from Segment#loadTerrain

Overrides: Segment#loadTerrain

Parameters

forceLoading (boolean)

`elevationsExists(elevations: Float32Array)`

Segment.js:396

Inherited from Segment#elevationsExists

Overrides: Segment#elevationsExists

Terrain obtained from server.

Parameters

elevations (Float32Array) — Elevation data.

`elevationsNotExists()`

Segment.js:714

Inherited from Segment#elevationsNotExists

Overrides: Segment#elevationsNotExists

Terrain is not obtained or not exists on the server.

`deleteBuffers()`

Segment.js:842

Inherited from Segment#deleteBuffers

Overrides: Segment#deleteBuffers

Delete segment gl buffers.

`deleteMaterials()`

Segment.js:859

Inherited from Segment#deleteMaterials

Overrides: Segment#deleteMaterials

Delete materials.

`deleteElevations()`

Segment.js:873

Inherited from Segment#deleteElevations

Overrides: Segment#deleteElevations

Delete elevation data.

`clearSegment()`

Segment.js:914

Inherited from Segment#clearSegment

Overrides: Segment#clearSegment

Clear but not destroy segment data.

`_freeCache()`

Segment.js:925

Inherited from Segment#_freeCache

Overrides: Segment#_freeCache

Removes cache records.

`destroySegment()`

Segment.js:933

Inherited from Segment#destroySegment

Overrides: Segment#destroySegment

Clear and destroy all segment data.

`createBoundsByExtent()`

Segment.js:995

Inherited from Segment#createBoundsByExtent

Overrides: Segment#createBoundsByExtent

Creates bound volumes by segment geographical extent.

`getMaterialByLayer(layer: Layer): planetSegment.Material`

Segment.js:1387

Inherited from Segment#getMaterialByLayer

Overrides: Segment#getMaterialByLayer

Gets specific layer material.

Parameters

layer (Layer) — Layer object.

Returns

planetSegment.Material

`isLonLatInside(lonLat: LonLat): boolean`

Segment.ts:672

Inherited from Segment#isLonLatInside

Overrides: Segment#isLonLatInside

Returns true when the segment covers the point.

Parameters

lonLat (LonLat) — Geodetic coordinates.

Returns

boolean

`_hitCellTriangle()`

Segment.ts:790

Inherited from Segment#_hitCellTriangle

Overrides: Segment#_hitCellTriangle

Ray test of the cell triangle at tri[i]: 1 when the point is above it, -1 when below it, 0 when missed.

`_equalizeCorner(corner: number)`

protected

Segment.ts:1053

Inherited from Segment#_equalizeCorner

Overrides: Segment#_equalizeCorner

Takes the corner vertex from the owner of the point: the segment of the lowest zoom among the ones that have a corner there. The owner keeps its vertex, so the result doesn't depend on the order the segments go, and the comparison makes the vertex follow the owner without any labels.

Parameters

corner (number) — Corner index, NW, NE, SW or SE.

`_equalizeCornerOnSide()`

Segment.ts:1128

Inherited from Segment#_equalizeCornerOnSide

Overrides: Segment#_equalizeCornerOnSide

Puts the corner on the side of a neighbor of a lower zoom, when the point lies inside that side.

`_getNormalMapSource()`

Segment.ts:1439

Inherited from Segment#_getNormalMapSource

Overrides: Segment#_getNormalMapSource

The segment the normal map of this one comes from: itself, or the parent whose normal map.

`_normalMapDrawn()`

Segment.ts:1581

Inherited from Segment#_normalMapDrawn

Overrides: Segment#_normalMapDrawn

Called when the normal map is drawn. New normals change all the sides for the finer normal maps that took them.

`_setExtentLonLat()`

Segment.ts:1771

Inherited from Segment#_setExtentLonLat

Overrides: Segment#_setExtentLonLat

`_getExtentCorners()`

Segment.ts:1778

Inherited from Segment#_getExtentCorners

Overrides: Segment#_getExtentCorners

Returns the SW, NW, NE and SE corners of the segment on the ellipsoid.

`setTerrainBoundingVolume(bounds: NumberArray6)`

Segment.ts:1968

Inherited from Segment#setTerrainBoundingVolume

Overrides: Segment#setTerrainBoundingVolume

Sets the bounding volume of the terrain vertices, the plain segment volume when there are no finite vertices.

Parameters

bounds (NumberArray6) — [xmin, ymin, zmin, xmax, ymax, zmax].

`_createPlainBounds()`

Segment.ts:1979

Inherited from Segment#_createPlainBounds

Overrides: Segment#_createPlainBounds

Creates the plain segment box center and half diagonal, the LOD volume without terrain.

`setLodRadius(radius: number)`

Segment.ts:2004

Inherited from Segment#setLodRadius

Overrides: Segment#setLodRadius

Raises the LOD center over the plain segment center by the height of the median vertex radius over the surface.

Parameters

radius (number) — Median geocentric radius of the segment vertices.

`getLonLat(lon: number, lat: number): LonLat`

Segment.ts:2151

Inherited from Segment#getLonLat

Overrides: Segment#getLonLat

Returns the geodetic coordinates of the native point.

Parameters

lon (number) — Native longitude.
lat (number) — Native latitude.

Returns

LonLat

`_getCyclicLonShift( sourceExtent: Extent, targetExtent: Extent, worldWidth: number, ): number`

protected

Segment.ts:2266

Inherited from Segment#_getCyclicLonShift

Overrides: Segment#_getCyclicLonShift

Computes cyclic longitude shift for sourceExtent to align it with targetExtent in wrapped horizontal coordinate space (for example, Web Mercator world copies).

Parameters