Add a simple example showing how to use the new transform

Will be used to prove out the API. Perhaps we can extend this into a
more complete example to show how the scene hierarchy leads to
propagation of transformations.

Change-Id: I06ed5fdd8f38043d1b4a296e9fa8a07c54a736af
Reviewed-by: Paul Lemire <paul.lemire@kdab.com>

1 files changed, 70 insertions, 0 deletions

diff --git a/examples/qt3d/transforms-qml/TemporaryCamera.qml b/examples/qt3d/transforms-qml/TemporaryCamera.qml
new file mode 100644
index 000000000..6c2862ee7
--- /dev/null
+++ b/examples/qt3d/transforms-qml/TemporaryCamera.qml
@@ -0,0 +1,70 @@
+/****************************************************************************
+**
+** Copyright (C) 2015 Klaralvdalens Datakonsult AB (KDAB).
+** Contact: http://www.qt-project.org/legal
+**
+** This file is part of the Qt3D module of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL3$
+** Commercial License Usage
+** Licensees holding valid commercial Qt licenses may use this file in
+** accordance with the commercial license agreement provided with the
+** Software or, alternatively, in accordance with the terms contained in
+** a written agreement between you and The Qt Company. For licensing terms
+** and conditions see http://www.qt.io/terms-conditions. For further
+** information use the contact form at http://www.qt.io/contact-us.
+**
+** GNU Lesser General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU Lesser
+** General Public License version 3 as published by the Free Software
+** Foundation and appearing in the file LICENSE.LGPLv3 included in the
+** packaging of this file. Please review the following information to
+** ensure the GNU Lesser General Public License version 3 requirements
+** will be met: https://www.gnu.org/licenses/lgpl.html.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU
+** General Public License version 2.0 or later as published by the Free
+** Software Foundation and appearing in the file LICENSE.GPL included in
+** the packaging of this file. Please review the following information to
+** ensure the GNU General Public License version 2.0 requirements will be
+** met: http://www.gnu.org/licenses/gpl-2.0.html.
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+import Qt3D.Core 2.0
+import Qt3D.Render 2.0
+
+Entity {
+    id: root
+
+    property vector3d pos: Qt.vector3d(0.0, 0.0, 0.0)
+    property vector3d viewCenter: Qt.vector3d(0.0, 0.0, -10.0)
+    property vector3d up: Qt.vector3d(0.0, 1.0, 0.0)
+
+    components: [ transform, lens ]
+
+    Transform {
+        id: transform
+
+        matrix: {
+            var m = Qt.matrix4x4(1,0,0,0,
+                                 0,1,0,0,
+                                 0,0,1,0,
+                                 0,0,0,1);
+            m.lookAt( root.pos, root.viewCenter, root.up );
+            return m;
+        }
+    }
+
+    CameraLens {
+        id: lens
+        projectionType: CameraLens.PerspectiveProjection
+        fieldOfView: 45
+        aspectRatio: _view.width / _view.height
+        nearPlane: 0.1
+        farPlane: 1000.0
+    }
+}