autumnplot-gl

Hardware-accelerated geospatial data plotting in the browser

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autumnplot-gl • Docs

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autumnplot-gl / PlateCarreeRotatedGrid

Class: PlateCarreeRotatedGrid

A rotated lat-lon (plate carree) grid with uniform grid spacing

Extends

• Grid

Constructors

new PlateCarreeRotatedGrid()

new PlateCarreeRotatedGrid(ni, nj, np_lon, np_lat, lon_shift, ll_lon, ll_lat, ur_lon, ur_lat): PlateCarreeRotatedGrid

Create a Lambert conformal conic grid

Parameters

• ni: number

The number of grid points in the i (longitude) direction

• nj: number

The number of grid points in the j (latitude) direction

• np_lon: number

The longitude of the north pole for the rotated grid

• np_lat: number

The latitude of the north pole for the rotated grid

• lon_shift: number

The angle around the rotated north pole to shift the central meridian

• ll_lon: number

The longitude of the lower left corner of the grid (on the rotated earth)

• ll_lat: number

The latitude of the lower left corner of the grid (on the rotated earth)

• ur_lon: number

The longitude of the upper right corner of the grid (on the rotated earth)

• ur_lat: number

The latitude of the upper right corner of the grid (on the rotated earth)

Returns

PlateCarreeRotatedGrid

Overrides

Grid.constructor

Source

Grid.ts:265

Properties

is_conformal

readonly is_conformal: boolean

Inherited from

Grid.is_conformal

Source

Grid.ts:86

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ll_lat

readonly ll_lat: number

Source

Grid.ts:245

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ll_lon

readonly ll_lon: number

Source

Grid.ts:244

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lon_shift

readonly lon_shift: number

Source

Grid.ts:243

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ni

readonly ni: number

Inherited from

Grid.ni

Source

Grid.ts:84

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nj

readonly nj: number

Inherited from

Grid.nj

Source

Grid.ts:85

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np_lat

readonly np_lat: number

Source

Grid.ts:242

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np_lon

readonly np_lon: number

Source

Grid.ts:241

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type

readonly type: GridType

Inherited from

Grid.type

Source

Grid.ts:83

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ur_lat

readonly ur_lat: number

Source

Grid.ts:247

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ur_lon

readonly ur_lon: number

Source

Grid.ts:246

Methods

copy()

copy(opts?): PlateCarreeRotatedGrid

Parameters

• opts?

• opts.ll_lat?: number

• opts.ll_lon?: number

• opts.ni?: number

• opts.nj?: number

• opts.ur_lat?: number

• opts.ur_lon?: number

Returns

PlateCarreeRotatedGrid

Overrides

Grid.copy

Source

Grid.ts:315

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getEarthCoords()

getEarthCoords(): EarthCoords

Get a list of longitudes and latitudes on the grid (internal method)

Returns

EarthCoords

Overrides

Grid.getEarthCoords

Source

Grid.ts:330

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getGridCoords()

getGridCoords(): GridCoords

Returns

GridCoords

Overrides

Grid.getGridCoords

Source

Grid.ts:334

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getThinnedGrid()

getThinnedGrid(thin_x, thin_y): PlateCarreeRotatedGrid

Parameters

• thin_x: number

• thin_y: number

Returns

PlateCarreeRotatedGrid

Overrides

Grid.getThinnedGrid

Source

Grid.ts:345

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getVectorRotationTexture()

getVectorRotationTexture(gl): object

Parameters

• gl: WebGLAnyRenderingContext

Returns

object

rotation

rotation: WGLTexture

Inherited from

Grid.getVectorRotationTexture

Source

Grid.ts:128

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getWGLBillboardBuffers()

getWGLBillboardBuffers(gl, thin_fac, max_zoom): Promise<object>

Parameters

• gl: WebGLAnyRenderingContext

• thin_fac: number

• max_zoom: number

Returns

Promise<object>

texcoords

texcoords: WGLBuffer

vertices

vertices: WGLBuffer

Inherited from

Grid.getWGLBillboardBuffers

Source

Grid.ts:124

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getWGLBuffers()

getWGLBuffers(gl): Promise<object>

Parameters

• gl: WebGLAnyRenderingContext

Returns

Promise<object>

cellsize

cellsize: WGLBuffer

texcoords

texcoords: WGLBuffer

vertices

vertices: WGLBuffer

Inherited from

Grid.getWGLBuffers

Source

Grid.ts:120

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transform()

transform(x, y, opts?): [number, number]

Parameters

• x: number

• y: number

• opts?

• opts.inverse?: boolean

Returns

[number, number]

Overrides

Grid.transform

Source

Grid.ts:338