Hardware-accelerated geospatial data plotting in the browser
autumnplot-gl • Docs
autumnplot-gl / PlateCarreeGrid
A plate carree (a.k.a. lat/lon) grid with uniform grid spacing
new PlateCarreeGrid(
ni,nj,ll_lon,ll_lat,ur_lon,ur_lat):PlateCarreeGrid
Create a plate carree grid
• ni: number
The number of grid points in the i (longitude) direction
• nj: number
The number of grid points in the j (latitude) direction
• ll_lon: number
The longitude of the lower left corner of the grid
• ll_lat: number
The latitude of the lower left corner of the grid
• ur_lon: number
The longitude of the upper right corner of the grid
• ur_lat: number
The latitude of the upper right corner of the grid
readonlyis_conformal:boolean
readonlyll_lat:number
readonlyll_lon:number
readonlyni:number
readonlynj:number
readonlytype:GridType
readonlyur_lat:number
readonlyur_lon:number
copy(
opts?):PlateCarreeGrid
• opts?
• opts.ll_lat?: number
• opts.ll_lon?: number
• opts.ni?: number
• opts.nj?: number
• opts.ur_lat?: number
• opts.ur_lon?: number
getEarthCoords():
EarthCoords
Get a list of longitudes and latitudes on the grid (internal method)
EarthCoords
getGridCoords():
GridCoords
GridCoords
getThinnedGrid(
thin_x,thin_y):PlateCarreeGrid
• thin_x: number
• thin_y: number
getVectorRotationTexture(
gl):object
• gl: WebGLAnyRenderingContext
object
rotation:
WGLTexture
getWGLBillboardBuffers(
gl,thin_fac,max_zoom):Promise<object>
• gl: WebGLAnyRenderingContext
• thin_fac: number
• max_zoom: number
Promise<object>
texcoords:
WGLBuffer
vertices:
WGLBuffer
getWGLBuffers(
gl):Promise<object>
• gl: WebGLAnyRenderingContext
Promise<object>
cellsize:
WGLBuffer
texcoords:
WGLBuffer
vertices:
WGLBuffer
transform(
x,y,opts?): [number,number]
• x: number
• y: number
• opts?
• opts.inverse?: boolean
[number, number]