diff --git a/sandbox/embed_selfhost_calculate.html b/sandbox/embed_selfhost_calculate.html
new file mode 100644
index 0000000..0bd7e2f
--- /dev/null
+++ b/sandbox/embed_selfhost_calculate.html
@@ -0,0 +1,80 @@
+<!DOCTYPE html>
+<html>
+
+<head>
+    <meta http-equiv="content-type" content="text/html;charset=utf-8">
+    <meta name="viewport" content="width=device-width, user-scalable=no">
+
+	<title>Online 3D Viewer</title>
+
+	<script type="text/javascript" src="../../libs/three.min.js"></script>
+	<script type="text/javascript" src="../build/o3dv.min-dev.js"></script>
+
+    <style>
+        div.online_3d_viewer
+        {
+            float: left;
+            border: 1px solid #eeeeee;
+            width: 640px;
+            height: 480px;
+        }
+    </style>
+
+    <script type='text/javascript'>
+        function OnModelLoaded (model)
+        {
+            let calculationDiv = document.getElementById ('calculation_result');
+            calculationDiv.innerHTML =
+                'Surface area: ' + OV.CalculateSurfaceArea (model).toFixed (2) + '<br>' +
+                'Volume: ' + OV.CalculateVolume (model).toFixed (2) + '<br>';
+        }
+
+        window.addEventListener ('load', () => {
+            // get the parent element of the viewer
+            let parentDiv = document.getElementById ('viewer');
+
+            // initialize the viewer with the parent element and some parameters
+            let viewer = new OV.EmbeddedViewer (parentDiv, {
+                camera : new OV.Camera (
+                    new OV.Coord3D (-1.5, 2.0, 3.0),
+                    new OV.Coord3D (0.0, 0.0, 0.0),
+                    new OV.Coord3D (0.0, 1.0, 0.0)
+                ),
+                backgroundColor : new OV.Color (255, 255, 255),
+                defaultColor : new OV.Color (200, 200, 200),
+                edgeSettings : {
+                    showEdges : false,
+                    edgeColor : new OV.Color (0, 0, 0),
+                    edgeThreshold : 1
+                },
+                environmentSettings : {
+                    environmentMap : [
+                        '../website/assets/envmaps/fishermans_bastion/posx.jpg',
+                        '../website/assets/envmaps/fishermans_bastion/negx.jpg',
+                        '../website/assets/envmaps/fishermans_bastion/posy.jpg',
+                        '../website/assets/envmaps/fishermans_bastion/negy.jpg',
+                        '../website/assets/envmaps/fishermans_bastion/posz.jpg',
+                        '../website/assets/envmaps/fishermans_bastion/negz.jpg'
+                    ],
+                    backgroundIsEnvMap : true
+                },
+                onModelLoaded : () => {
+                    OnModelLoaded (viewer.GetModel ());
+                }
+            });
+
+            // load a model providing model urls
+            viewer.LoadModelFromUrls ([
+                '../../test/testfiles/obj/hundred_cubes.obj',
+                '../../test/testfiles/obj/hundred_cubes.mtl'
+            ]);
+        });
+    </script>
+</head>
+
+<body>
+    <div class="online_3d_viewer" id="viewer"></div>
+    <div id="calculation_result"></div>
+</body>
+
+</html>
diff --git a/source/engine/viewer/embeddedviewer.js b/source/engine/viewer/embeddedviewer.js
index 97fd91a..09f6595 100644
--- a/source/engine/viewer/embeddedviewer.js
+++ b/source/engine/viewer/embeddedviewer.js
@@ -44,6 +44,8 @@ export class EmbeddedViewer
             this.viewer.SetEnvironmentMapSettings (environmentMap, backgroundIsEnvMap);
         }
 
+        this.model = null;
+
         window.addEventListener ('resize', () => {
             this.Resize ();
         });
@@ -63,6 +65,7 @@ export class EmbeddedViewer
             settings.defaultColor = this.parameters.defaultColor;
         }
 
+        this.model = null;
         let progressDiv = null;
         let loader = new ThreeModelLoader ();
         loader.LoadModel (modelUrls, FileSource.Url, settings, {
@@ -92,6 +95,11 @@ export class EmbeddedViewer
                     this.viewer.SetUpVector (Direction.Y, false);
                 }
                 this.viewer.FitSphereToWindow (boundingSphere, false);
+
+                this.model = importResult.model;
+                if (this.parameters.onModelLoaded) {
+                    this.parameters.onModelLoaded ();
+                }
             },
             onTextureLoaded : () => {
                 this.viewer.Render ();
@@ -118,6 +126,11 @@ export class EmbeddedViewer
         return this.viewer;
     }
 
+    GetModel ()
+    {
+        return this.model;
+    }
+
     Resize ()
     {
         let width = this.parentElement.clientWidth;
