style: format codes

src/crs/BD09.ts

@@ -1,10 +1,8 @@
 import { Position } from '../geojson';
 
-const {
-  sin, cos, atan2, sqrt, PI,
-} = Math;
+const { sin, cos, atan2, sqrt, PI } = Math;
 
-const baiduFactor = PI * 3000.0 / 180.0;
+const baiduFactor = (PI * 3000.0) / 180.0;
 
 export function BD09ToGCJ02(coord: Position): Position {
   const [lon, lat] = coord;

src/crs/BD09MC.ts

@@ -2,14 +2,7 @@ import { Position } from '../geojson';
 
 const { abs } = Math;
 
-const MCBAND = [
-  12890594.86,
-  8362377.87,
-  5591021,
-  3481989.83,
-  1678043.12,
-  0,
-];
+const MCBAND = [12890594.86, 8362377.87, 5591021, 3481989.83, 1678043.12, 0];
 const LLBAND = [75, 60, 45, 30, 15, 0];
 const MC2LL = [
   [
@@ -164,13 +157,14 @@ function transform(x: number, y: number, factors: number[]): Position {
   const cc = abs(y) / factors[9];
 
   let xt = factors[0] + factors[1] * abs(x);
-  let yt = factors[2]
-    + factors[3] * cc
-    + factors[4] * (cc ** 2)
-    + factors[5] * (cc ** 3)
-    + factors[6] * (cc ** 4)
-    + factors[7] * (cc ** 5)
-    + factors[8] * (cc ** 6);
+  let yt =
+    factors[2] +
+    factors[3] * cc +
+    factors[4] * cc ** 2 +
+    factors[5] * cc ** 3 +
+    factors[6] * cc ** 4 +
+    factors[7] * cc ** 5 +
+    factors[8] * cc ** 6;
 
   xt *= x < 0 ? -1 : 1;
   yt *= y < 0 ? -1 : 1;

src/crs/EPSG3857.ts

@@ -9,18 +9,21 @@ const MAXEXTENT = 20037508.342789244;
 
 export function ESPG3857ToWGS84(xy: Position): Position {
   return [
-    (xy[0] * R2D / A),
-    ((Math.PI * 0.5) - 2.0 * Math.atan(Math.exp(-xy[1] / A))) * R2D,
+    (xy[0] * R2D) / A,
+    (Math.PI * 0.5 - 2.0 * Math.atan(Math.exp(-xy[1] / A))) * R2D,
   ];
 }
 
 export function WGS84ToEPSG3857(lonLat: Position): Position {
   // compensate longitudes passing the 180th meridian
   // from https://github.com/proj4js/proj4js/blob/master/lib/common/adjust_lon.js
-  const adjusted = (Math.abs(lonLat[0]) <= 180) ? lonLat[0] : (lonLat[0] - ((lonLat[0] < 0 ? -1 : 1) * 360));
+  const adjusted =
+    Math.abs(lonLat[0]) <= 180
+      ? lonLat[0]
+      : lonLat[0] - (lonLat[0] < 0 ? -1 : 1) * 360;
   const xy: Position = [
     A * adjusted * D2R,
-    A * Math.log(Math.tan((Math.PI * 0.25) + (0.5 * lonLat[1] * D2R))),
+    A * Math.log(Math.tan(Math.PI * 0.25 + 0.5 * lonLat[1] * D2R)),
   ];
 
   // if xy value is beyond maxextent (e.g. poles), return maxextent

src/crs/GCJ02.ts

@@ -1,46 +1,44 @@
 import { Position } from '../geojson';
 
-const {
-  sin, cos, sqrt, abs, PI,
-} = Math;
+const { sin, cos, sqrt, abs, PI } = Math;
 
 const a = 6378245;
 const ee = 0.006693421622965823;
 
-
 // roughly check whether coordinates are in China.
 function isInChinaBbox(lon: number, lat: number): boolean {
   return lon >= 72.004 && lon <= 137.8347 && lat >= 0.8293 && lat <= 55.8271;
 }
 
 function transformLat(x: number, y: number): number {
-  let ret = -100 + 2 * x + 3 * y + 0.2 * y * y + 0.1 * x * y + 0.2 * sqrt(abs(x));
-  ret += (20 * sin(6 * x * PI) + 20 * sin(2 * x * PI)) * 2 / 3;
-  ret += (20 * sin(y * PI) + 40 * sin(y / 3 * PI)) * 2 / 3;
-  ret += (160 * sin(y / 12 * PI) + 320 * sin(y * PI / 30)) * 2 / 3;
+  let ret =
+    -100 + 2 * x + 3 * y + 0.2 * y * y + 0.1 * x * y + 0.2 * sqrt(abs(x));
+  ret += ((20 * sin(6 * x * PI) + 20 * sin(2 * x * PI)) * 2) / 3;
+  ret += ((20 * sin(y * PI) + 40 * sin((y / 3) * PI)) * 2) / 3;
+  ret += ((160 * sin((y / 12) * PI) + 320 * sin((y * PI) / 30)) * 2) / 3;
   return ret;
 }
 
 function transformLon(x: number, y: number): number {
   let ret = 300 + x + 2 * y + 0.1 * x * x + 0.1 * x * y + 0.1 * sqrt(abs(x));
-  ret += (20 * sin(6 * x * PI) + 20 * sin(2 * x * PI)) * 2 / 3;
-  ret += (20 * sin(x * PI) + 40 * sin(x / 3 * PI)) * 2 / 3;
-  ret += (150 * sin(x / 12 * PI) + 300 * sin(x / 30 * PI)) * 2 / 3;
+  ret += ((20 * sin(6 * x * PI) + 20 * sin(2 * x * PI)) * 2) / 3;
+  ret += ((20 * sin(x * PI) + 40 * sin((x / 3) * PI)) * 2) / 3;
+  ret += ((150 * sin((x / 12) * PI) + 300 * sin((x / 30) * PI)) * 2) / 3;
   return ret;
 }
 
 function delta(lon: number, lat: number): number[] {
   let dLon = transformLon(lon - 105, lat - 35);
   let dLat = transformLat(lon - 105, lat - 35);
 
-  const radLat = lat / 180 * PI;
+  const radLat = (lat / 180) * PI;
   let magic = sin(radLat);
 
   magic = 1 - ee * magic * magic;
 
   const sqrtMagic = sqrt(magic);
-  dLon = (dLon * 180) / (a / sqrtMagic * cos(radLat) * PI);
-  dLat = (dLat * 180) / ((a * (1 - ee)) / (magic * sqrtMagic) * PI);
+  dLon = (dLon * 180) / ((a / sqrtMagic) * cos(radLat) * PI);
+  dLat = (dLat * 180) / (((a * (1 - ee)) / (magic * sqrtMagic)) * PI);
 
   return [dLon, dLat];
 }

src/crs/index.ts

@@ -34,8 +34,8 @@ export enum CRSTypes {
 
 export interface CRS {
   to: {
-    [key in keyof typeof CRSTypes]?: Function
-  }
+    [key in keyof typeof CRSTypes]?: Function;
+  };
 }
 
 export const WGS84: CRS = {
@@ -70,15 +70,25 @@ export const EPSG3857: CRS = {
     [CRSTypes.WGS84]: ESPG3857ToWGS84,
     [CRSTypes.GCJ02]: compose(WGS84ToGCJ02, ESPG3857ToWGS84),
     [CRSTypes.BD09]: compose(GCJ02ToBD09, WGS84ToGCJ02, ESPG3857ToWGS84),
-    [CRSTypes.BD09MC]: compose(BD09toBD09MC, GCJ02ToBD09, WGS84ToGCJ02, ESPG3857ToWGS84),
+    [CRSTypes.BD09MC]: compose(
+      BD09toBD09MC,
+      GCJ02ToBD09,
+      WGS84ToGCJ02,
+      ESPG3857ToWGS84
+    ),
   },
 };
 
 export const BD09MC: CRS = {
   to: {
     [CRSTypes.WGS84]: compose(GCJ02ToWGS84, BD09ToGCJ02, BD09MCtoBD09),
     [CRSTypes.GCJ02]: compose(BD09ToGCJ02, BD09MCtoBD09),
-    [CRSTypes.EPSG3857]: compose(WGS84ToEPSG3857, GCJ02ToWGS84, BD09ToGCJ02, BD09MCtoBD09),
+    [CRSTypes.EPSG3857]: compose(
+      WGS84ToEPSG3857,
+      GCJ02ToWGS84,
+      BD09ToGCJ02,
+      BD09MCtoBD09
+    ),
     [CRSTypes.BD09]: BD09MCtoBD09,
   },
 };

src/geojson.ts

@@ -19,13 +19,14 @@
  * https://tools.ietf.org/html/rfc7946#section-1.4
  * The valid values for the 'type' property of GeoJSON geometry objects.
  */
-export type GeometryTypes = 'Point' |
-'LineString' |
-'Polygon' |
-'MultiPoint' |
-'MultiLineString' |
-'MultiPolygon' |
-'GeometryCollection';
+export type GeometryTypes =
+  | 'Point'
+  | 'LineString'
+  | 'Polygon'
+  | 'MultiPoint'
+  | 'MultiLineString'
+  | 'MultiPolygon'
+  | 'GeometryCollection';
 
 export type CollectionTypes = 'FeatureCollection' | 'GeometryCollection';
 
@@ -76,17 +77,18 @@ export type Position = [number, number] | [number, number, number];
  * A Feature object has a member with the name 'properties'.
  * The value of the properties member is an object (any JSON object or a JSON null value).
  */
-export type Properties = { [name: string]: any; } | null;
+export type Properties = { [name: string]: any } | null;
 
 /**
  * Geometries
  */
-export type Geometries = Point |
-LineString |
-Polygon |
-MultiPoint |
-MultiLineString |
-MultiPolygon;
+export type Geometries =
+  | Point
+  | LineString
+  | Polygon
+  | MultiPoint
+  | MultiLineString
+  | MultiPolygon;
 
 /**
  * GeoJSON Object
@@ -125,10 +127,7 @@ export interface GeometryObject extends GeoJSONObject {
  * https://tools.ietf.org/html/rfc7946#section-3
  */
 export interface Geometry extends GeoJSONObject {
-  coordinates: Position |
-  Position[] |
-  Position[][] |
-  Position[][][];
+  coordinates: Position | Position[] | Position[][] | Position[][][];
 }
 
 /**
@@ -203,7 +202,9 @@ export interface MultiPolygon extends GeometryObject {
  */
 export interface GeometryCollection extends GeometryObject {
   type: 'GeometryCollection';
-  geometries: Array<Point | LineString | Polygon | MultiPoint | MultiLineString | MultiPolygon>;
+  geometries: Array<
+    Point | LineString | Polygon | MultiPoint | MultiLineString | MultiPolygon
+  >;
 }
 
 /**
@@ -213,7 +214,8 @@ export interface GeometryCollection extends GeometryObject {
  * A Feature object represents a spatially bounded thing.
  * Every Feature object is a GeoJSON object no matter where it occurs in a GeoJSON text.
  */
-export interface Feature<G = Geometry | GeometryCollection, P = Properties> extends GeoJSONObject {
+export interface Feature<G = Geometry | GeometryCollection, P = Properties>
+  extends GeoJSONObject {
   type: 'Feature';
   geometry: G;
   /**
@@ -236,7 +238,10 @@ export interface Feature<G = Geometry | GeometryCollection, P = Properties> exte
  * The value of 'features' is a JSON array. Each element of the array is a Feature object as defined above.
  * It is possible for this array to be empty.
  */
-export interface FeatureCollection<G = Geometry | GeometryCollection, P = Properties> extends GeoJSONObject {
+export interface FeatureCollection<
+  G = Geometry | GeometryCollection,
+  P = Properties
+> extends GeoJSONObject {
   type: 'FeatureCollection';
   features: Array<Feature<G, P>>;
 }
@@ -246,4 +251,8 @@ export interface FeatureCollection<G = Geometry | GeometryCollection, P = Proper
  *
  * All GeoJSON objects
  */
-export type GeoJSON = Feature | FeatureCollection | Geometry | GeometryCollection;
+export type GeoJSON =
+  | Feature
+  | FeatureCollection
+  | Geometry
+  | GeometryCollection;