Fix for EPSG:3857 failure.

guiyunbao · Aug 8, 2023 · e570aa8 · e570aa8
1 parent ef0b0a9
commit e570aa8
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Showing 3 changed files with 13 additions and 1 deletion.
diff --git a/index.ts b/index.ts
@@ -12,6 +12,7 @@ import {
  shuffle,
  SampleType,
  generateSample,
+ isValidEPSG3857Lat,
 } from "./src/utils";
 import { Command } from "commander";
 import { redis } from "./src/Redis/Redis";
@@ -113,6 +114,9 @@ new Promise<void>(async (resolve, reject) => {
 
  // Query B case
  testPoint = data[Math.floor(Math.random() * data.length)];
+ while( !isValidEPSG3857Lat(testPoint.lat) ){
+ testPoint = data[Math.floor(Math.random() * data.length)];
+ }
  lng = testPoint.lng;
  lat = testPoint.lat;
  distance = Math.random() * 100;
@@ -135,6 +139,9 @@ new Promise<void>(async (resolve, reject) => {
 
  // Query C case
  testPoint = data[Math.floor(Math.random() * data.length)];
+ while( !isValidEPSG3857Lat(testPoint.lat) ){
+ testPoint = data[Math.floor(Math.random() * data.length)];
+ }
  lng = testPoint.lng;
  lat = testPoint.lat;
  distance = Math.random() * 100;

diff --git a/src/Redis/Locations.ts b/src/Redis/Locations.ts
@@ -1,4 +1,4 @@
-import { Entity, Schema } from 'redis-om';
+import { Schema } from 'redis-om';
 
 
 export type Location = {

diff --git a/src/utils.ts b/src/utils.ts
@@ -11,6 +11,11 @@ export function randomLat() {
  return Math.random() * 180 - 90;
 }
 
+export function isValidEPSG3857Lat(lat: number): boolean {
+ const latLimit = 85.05112878;
+ return Math.abs(lat) < latLimit;
+}
+
 export type Longitude = number;
 export type Latitude = number;