From 968f336a98d8c3baa583192ae30158d9c8d55de9 Mon Sep 17 00:00:00 2001
From: kovacsv <viktorkovacs@gmail.com>
Date: Tue, 18 Jan 2022 19:51:07 +0100
Subject: [PATCH] Move camera to a separate file.

---
 source/engine/parameters/parameterlist.js |  2 +-
 source/engine/viewer/camera.js            | 25 +++++++++++++++++++++
 source/engine/viewer/navigation.js        | 27 ++---------------------
 source/engine/viewer/viewer.js            |  3 ++-
 4 files changed, 30 insertions(+), 27 deletions(-)
 create mode 100644 source/engine/viewer/camera.js

diff --git a/source/engine/parameters/parameterlist.js b/source/engine/parameters/parameterlist.js
index b511646..3080ab1 100644
--- a/source/engine/parameters/parameterlist.js
+++ b/source/engine/parameters/parameterlist.js
@@ -1,6 +1,6 @@
 import { Coord3D } from '../geometry/coord3d.js';
 import { Color } from '../model/color.js';
-import { Camera } from '../viewer/navigation.js';
+import { Camera } from '../viewer/camera.js';
 
 export let ParameterConverter =
 {
diff --git a/source/engine/viewer/camera.js b/source/engine/viewer/camera.js
new file mode 100644
index 0000000..9b44d3f
--- /dev/null
+++ b/source/engine/viewer/camera.js
@@ -0,0 +1,25 @@
+import { CoordIsEqual3D } from '../geometry/coord3d.js';
+
+export class Camera
+{
+    constructor (eye, center, up)
+    {
+        this.eye = eye;
+        this.center = center;
+        this.up = up;
+    }
+
+    Clone ()
+    {
+        return new Camera (
+            this.eye.Clone (),
+            this.center.Clone (),
+            this.up.Clone ()
+        );
+    }
+}
+
+export function CameraIsEqual3D (a, b)
+{
+	return CoordIsEqual3D (a.eye, b.eye) && CoordIsEqual3D (a.center, b.center) && CoordIsEqual3D (a.up, b.up);
+}
diff --git a/source/engine/viewer/navigation.js b/source/engine/viewer/navigation.js
index a4cc873..a8fe054 100644
--- a/source/engine/viewer/navigation.js
+++ b/source/engine/viewer/navigation.js
@@ -1,33 +1,10 @@
 import { Coord2D, CoordDistance2D, SubCoord2D } from '../geometry/coord2d.js';
-import { CoordDistance3D, CoordIsEqual3D, CrossVector3D, SubCoord3D, VectorAngle3D } from '../geometry/coord3d.js';
+import { CoordDistance3D, CrossVector3D, SubCoord3D, VectorAngle3D } from '../geometry/coord3d.js';
 import { DegRad, IsGreater, IsLower, IsZero } from '../geometry/geometry.js';
 import { ParabolicTweenFunction, TweenCoord3D } from '../geometry/tween.js';
+import { CameraIsEqual3D } from './camera.js';
 import { GetDomElementClientCoordinates } from './domutils.js';
 
-export class Camera
-{
-    constructor (eye, center, up)
-    {
-        this.eye = eye;
-        this.center = center;
-        this.up = up;
-    }
-
-    Clone ()
-    {
-        return new Camera (
-            this.eye.Clone (),
-            this.center.Clone (),
-            this.up.Clone ()
-        );
-    }
-}
-
-export function CameraIsEqual3D (a, b)
-{
-	return CoordIsEqual3D (a.eye, b.eye) && CoordIsEqual3D (a.center, b.center) && CoordIsEqual3D (a.up, b.up);
-}
-
 export class MouseInteraction
 {
     constructor ()
diff --git a/source/engine/viewer/viewer.js b/source/engine/viewer/viewer.js
index 3872da1..a251431 100644
--- a/source/engine/viewer/viewer.js
+++ b/source/engine/viewer/viewer.js
@@ -2,8 +2,9 @@ import { Coord3D, CoordDistance3D, SubCoord3D } from '../geometry/coord3d.js';
 import { Direction } from '../geometry/geometry.js';
 import { ColorToHexString } from '../model/color.js';
 import { ShadingType } from '../threejs/threeutils.js';
+import { Camera } from './camera.js';
 import { GetDomElementInnerDimensions } from './domutils.js';
-import { Camera, Navigation } from './navigation.js';
+import { Navigation } from './navigation.js';
 import { ViewerExtraGeometry, ViewerGeometry } from './viewergeometry.js';
 
 export function GetDefaultCamera (direction)