-- 2.2 Navigating In OptiSurface Designer
Tip – Follow a video tutorial on this subject here: Navigating in OptiSurface Designer
In OptiSurface Designer, you see the terrain in the 3D scene. You can navigate through this 3D scene using a mouse or keyboard arrow keys.
2.2.1 Using a Mouse
By default, you are in pan mode as shown by the depressed 'Pan' button on the toolbar 
. To get started navigating with your mouse, simply position the cursor in the middle of the 3D scene,
click the left mouse button, move the mouse and you will ‘pan’ across the
scene. By moving the mouse while pressing one of the buttons, you can also:
Zoom in and out: using the mouse scroll wheel
Rotate - In pan mode
, you can hold the <Shift>
key down, then left click and drag the mouse to rotate the scene about the Z
axis. Also press this toolbar button , then left click and drag the
mouse 
to rotate the scene about the Z axis. - Orbit - In pan mode
, you can hold the <Ctrl> key down, then left click and drag the mouse to orbit the scene around it's centre.
2.2.2 Using Keyboard Arrow Keys
Pressing the up, down, left or right keys on your keyboard will pan the 3D scene in that direction. You may need to click inside the map window first for this feature to work.
2.2.3 Tilting and Viewing Terrain
When you first start OptiSurface Designer, the default view of the terrain is a plan view, which is straight down. You can view the terrain from different angles using the view toolbar. i.e:
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Tip – You can also tilt by clicking and dragging the North Arrow with your mouse.
The following figures show a
comparison view of a field with and without tilt applied.
2.2.4 Vertical Exaggeration Factor
Vertical Exaggeration shows the appearance of the terrain to be more pronounced than the actual. It is set when the survey is imported based on the vertical variation of the points. In OptiSurface Designer V2, this factor cannot be changed once the survey is imported. To see the Vertical Exaggertion Factor, go to Tools > Project Properties.