Merge pull request #120 from carbonplan/katamartin/camera-initialization

Wait for camera initialization before carrying out `queryRegion`

src/tiles.js

@@ -100,6 +100,15 @@ export const createTiles = (regl, opts) => {
 
     customUniforms.forEach((k) => (uniforms[k] = regl.this(k)))
 
+    this.cameraInitialized = new Promise((resolve) => {
+      let shouldResolve = true
+      this._resolveCameraInitialized = () => {
+        if (shouldResolve) {
+          resolve()
+          shouldResolve = false
+        }
+      }
+    })
     this.initialized = new Promise((resolve) => {
       const loadingID = this.setLoading('metadata')
       initializeStore(source, version, variable, Object.keys(selector)).then(
@@ -336,6 +345,8 @@ export const createTiles = (regl, opts) => {
         projection: this.projection,
       })
 
+      this._resolveCameraInitialized()
+
       if (this.size && Object.keys(this.active).length === 0) {
         this.clearLoading(null, { forceClear: true })
       }
@@ -404,7 +415,7 @@ export const createTiles = (regl, opts) => {
     }
 
     this.queryRegion = async (region, selector) => {
-      await this.initialized
+      await Promise.all([this.initialized, this.cameraInitialized])
 
       const tiles = getTilesOfRegion(
         region,