work on getting index translated widget geometry

src/kiri/layers.js

@@ -40,6 +40,12 @@ class Layers {
         return this.layers[layer];
     }
 
+    // in radians
+    setRotation(x = 0, y = 0, z = 0) {
+        this.rotation = { x, y, z };
+        return this;
+    }
+
     setLayer(layer, colors, off) {
         let layers = this.layers;
         if (typeof(colors) === 'number') {
@@ -50,6 +56,7 @@ class Layers {
             };
         }
         this.current = layers[layer] = layers[layer] || {
+            rotation: this.rotation,
             off: off === true,
             lines: [],
             polys: [], // colors are an attribute on polygons
@@ -59,8 +66,7 @@ class Layers {
             paths: undefined, // 3d extrusion / tube paths (used to be an array, now merged - FIX)
             cpath: undefined, // path colors indices
             color: colors || {
-                index: 0,
-                check: 0,
+                check: 0, // unused?
                 line: 0,
                 face: 0,
                 opacity: 1