Add typescript definitions

package.json

@@ -5,15 +5,17 @@
   "main": "dist/geoblaze.node.min.js",
   "browser": "./dist/geoblaze.web.min.js",
   "unpkg": "./dist/geoblaze.web.min.js",
+  "types": "dist/geoblaze.d.ts",
   "scripts": {
     "analyze": "webpack --config webpack.analyze.js",
-    "build": "npm run build:dev && npm run build:prod",
+    "build": "npm run build:dev && npm run build:prod && npm run build:types",
     "build:dev": "npm run build:dev:node && npm run build:dev:web",
     "build:dev:node": "webpack --mode development --target node",
     "build:dev:web": "webpack --mode development --target web",
     "build:prod": "npm run build:prod:node && npm run build:prod:web",
     "build:prod:node": "webpack --mode production --target node",
     "build:prod:web": "webpack --mode production --target web",
+    "build:types": "cp src/geoblaze.d.ts dist/geoblaze.d.ts",
     "dev": "webpack --mode development --target node --watch",
     "documentation": "./node_modules/.bin/documentation build src/** --config documentation.yml -f html -o docs && echo 'geoblaze.io' > docs/CNAME",
     "fix": "eslint src --fix",
@@ -48,6 +50,7 @@
   "homepage": "https://github.com/GeoTIFF/geoblaze#readme",
   "dependencies": {
     "@turf/combine": "^4.7.3",
+    "@types/geojson": "^7946.0.7",
     "georaster": "^1.0.3",
     "get-depth": "0.0.0",
     "mathjs": "^6.6.1",

src/geoblaze.d.ts

@@ -0,0 +1,111 @@
+import { Point, Polygon, Feature, BBox } from "geojson";
+
+export interface Georaster {
+  /** array of raster bands, each of which is a 2D array of cell values */
+  values: number[][][];
+  /** raster height in units of projection */
+  height: number;
+  /** raster width in units of projection */
+  width: number;
+  /** raster height in pixels */
+  pixelHeight: number;
+  /** raster width in pixels */
+  pixelWidth: number;
+  /** Projection identifier */
+  projection: unknown;
+  /** left boundary, in units of projection*/
+  xmin: number;
+  /** right boundary, in units of projection */
+  xmax: number;
+  /** top boundary (image y-axis is inverse of cartesian), in units of projection */
+  ymin: number;
+  /** bottom boundary (image y-axis is inverse of cartesian), in units of projection */
+  ymax: number;
+  /** cell value representing "no data" in raster */
+  noDataValue: number;
+  /** number of bands in raster */
+  numberOfRasters: number;
+}
+
+export type GeoblazeBBox = {
+  xmin: number;
+  xmax: number;
+  ymin: number;
+  ymax: number;
+};
+
+export interface HistogramOptions {
+  scaleType: "nominal" | "ratio";
+  numClasses: number;
+  classType: "equal-interval" | "quantile";
+}
+
+export interface Histogram {
+  [binKey: string]: number[];
+}
+
+export type InputPolygon = number[][][] | Polygon | Feature<Polygon>;
+export type InputPoint = number[] | Point | Feature<Point>;
+export type InputBBox = BBox | GeoblazeBBox;
+
+export function bandArithmetic(
+  raster: Georaster,
+  operation: string
+): Promise<Georaster>;
+
+export function get(
+  raster: Georaster,
+  geom: InputBBox | null | undefined,
+  flat: boolean
+): Promise<Georaster>;
+
+// Done
+export function histogram(
+  raster: Georaster,
+  geom: string | InputPolygon | null | undefined,
+  options: HistogramOptions
+): Histogram[];
+
+export function identify(
+  raster: Georaster,
+  geom?: string | InputPoint | null
+): number[];
+
+export function load(urlOrFile: object | string): Promise<Georaster>;
+
+export function max(
+  raster: Georaster,
+  geom: string | InputPolygon | null
+): Promise<Georaster>;
+
+export function mean(
+  raster: Georaster,
+  geom: string | InputPolygon | null
+): Promise<Georaster>;
+
+export function median(
+  raster: Georaster,
+  geom: string | InputPolygon | null
+): Promise<Georaster>;
+
+export function min(
+  raster: Georaster,
+  geom: string | InputPolygon | null
+): Promise<Georaster>;
+
+export function mode(
+  raster: Georaster,
+  geom: string | InputPolygon | null
+): Promise<Georaster>;
+
+export function rasterCalculator(
+  raster: Georaster,
+  operation: (() => unknown) | string
+): Georaster;
+
+export function sum(
+  raster: Georaster,
+  geom: string | InputPolygon | null,
+  test?: (cellValue: unknown) => boolean,
+  debug?: boolean
+): Promise<Array<unknown>>;