geotiff-tile
Generate a Map Tile from a GeoTIFF File.
install
npm install geotiff-tile
usage
import { createTile } from "geotiff-tile";
createTile({
// bounding box of tile in format [xmin, ymin, xmax, ymax]
bbox: [-122.49755859375, 38.8520508, -120.06958007812499, 40.697299008636755],
// spatial reference system of the bounding box
// as a EPSG Code number
bbox_srs = 4326,
// geometry to clip by in GeoJSON format
cutline: geojson,
// spatial reference system of cutline
cutline_srs,
// set to higher number to increase logging
debug_level = 0,
// instance of geotiff.js
geotiff,
// function that accepts a pixel array of values of type
// ({ pixel }: { pixel: number[] }) => number[]
expr,
// layout using xdim layout syntax
// https://github.com/danieljdufour/xdim
layout = "[band][row,column]",
// resampling method
method,
// round pixel values to integers
round,
// projection of the tile
// as an EPSG code
tile_srs: 3857,
// tile height in pixel
tile_height: 512,
// width of tile in pixels
tile_width: 512,
// whether to use overviews if available
use_overview
})
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