Merge pull request #4 from ma2yama/marmot_setInitialPosition

Set initial position

Author: ma2yama

aframe/build/aframe-ar-new-location-only.js

@@ -15,6 +15,11 @@ function main() {
 
     // You can change the minimum GPS accuracy needed to register a position - by default 1000m
     //const arjs = new LocationBased(scene, camera, { gpsMinAccuracy: 30 } );
+
+    // You can set the initial position
+    // const initialPosition = { longitude: 51.47816410406528, latitude:  -0.001540203696240924 };
+    // const arjs = new LocationBased(scene, camera, { initialPosition });
+
     const cam = new WebcamRenderer(renderer, '#video1');
 
     const mouseStep = THREE.MathUtils.degToRad(5);

aframe/build/aframe-ar-new-location-only.mjs

@@ -13,8 +13,17 @@ class LocationBased {
     this._maximumAge = 0;
     this._watchPositionId = null;
     this.setGpsOptions(options);
-    this.initialPosition = null;
-    this.initialPositionAsOrigin = options.initialPositionAsOrigin || false;
+    this.initialPosition =
+      options.initialPosition != null
+        ? this._proj.project(
+            options.initialPosition.longitude,
+            options.initialPosition.latitude,
+          )
+        : null;
+    this.initialPositionAsOrigin =
+      options.initialPosition != null ||
+      options.initialPositionAsOrigin ||
+      false;
     this.useAltitude = options.useAltitude || false;
   }