From 6868c9f1ce9e449bfdcd90b05f4dc23e4ba8d050 Mon Sep 17 00:00:00 2001
From: katamartin <katasm@gmail.com>
Date: Tue, 26 Mar 2024 10:44:14 -0400
Subject: [PATCH] Avoid errors before metadata initialized

---
 src/tiles.js | 9 +++++++++
 src/utils.js | 1 +
 2 files changed, 10 insertions(+)

diff --git a/src/tiles.js b/src/tiles.js
index f0480bf..45ea158 100644
--- a/src/tiles.js
+++ b/src/tiles.js
@@ -128,6 +128,10 @@ export const createTiles = (regl, opts) => {
           this.projectionIndex = projection
             ? ['mercator', 'equirectangular'].indexOf(projection)
             : ['EPSG:3857', 'EPSG:4326'].indexOf(crs)
+          this.projection = ['mercator', 'equirectangular'][
+            this.projectionIndex
+          ]
+
           if (mode === 'grid' || mode === 'dotgrid') {
             this.count = position.length
           }
@@ -295,6 +299,11 @@ export const createTiles = (regl, opts) => {
     }
 
     this.updateCamera = ({ center, zoom }) => {
+      // Return early if projection not yet initialized
+      if (!this.projection) {
+        return
+      }
+
       const level = zoomToLevel(zoom, this.maxZoom)
       const tile = pointToTile(
         center.lng,
diff --git a/src/utils.js b/src/utils.js
index 64e8191..398c9df 100644
--- a/src/utils.js
+++ b/src/utils.js
@@ -41,6 +41,7 @@ export const pointToTile = (lon, lat, z, projection, order) => {
       y = Math.max(Math.min(y, z2), 0)
       tile = [x, y, z]
     default:
+      return
       break
   }
   tile[0] = Math.floor(tile[0])