Learning
How to use the GeoVRML Environment
Window
There are two different controls for navigation around the scene: Flash controls and Cortona Skin. The controls are intended to be used independently, because they work independently of each other. You can use both, though this is not recommended. There are two different types of controls to facilitate the needs of all users, from beginners (Flash Controls) to experts (Cortona Skin). When using one, the other will be disabled. Simply click on the disabled one to restore it.
Flash Controls
The Flash controls are limited in scope to merely rotation and scale of the model. There is also the ability to switch between two
textures and reset the changes made through the Flash Controls.
Rotate
To rotate the model, you can click on any of the arrows surrounding the "Rotate" icon. Each color arrow will rotate the model about a different axis and in the positive or negative direction.
Scale
The scale arrows increase or decrease the elevation exaggeration of the field.
Image
This will allow switching between textures for the field.
Reset
The reset button will restore the model to it's original orientation and scale before any Flash Control was used.
Cortona Skin
The Cortona Skin allows for much more freedom than the Flash Controls, in turn is much harder to use. The basic idea is that you have 3 types of navigations (Walk, Fly, Study) for each of these there are different options (Plan, Pan, Turn, Roll).
To use the IFAFS Skin instead of the default, right click on the scene, select Preferences..., then the Skin tab and select the IFAFS Skin. This skin will allow the you to use the mouse wheel to zoom in and out on the scene. To install the skin, first you need Administrative
privileges. Then copy the file "IFAFS.zip" to "C:\Program Files\Common Files\ParallelGraphics\Cortona\Skins".
Notes: The Skin controls move the camera, not the model, thus the some of the controls may seem backwards. Directions under head heading indicate mouse movement direction.
Walk + Plan
This moves the camera in a horizontal plane.
Forward/Backward - Move the camera in a straight line.
Left/Right - Turn left/right
Walk + Pan
Move left/right in a horizontal plane.
Forward/Backward - Move camera up/down
Left/Right - Move camera left/right
Walk + Turn
Change angle of camera in the scene.
Forward - Turn upward
Backward - Turn downward
Left - Rotate clockwise
Right - Rotate counterclockwise
Walk + Roll
N/A
Fly + Plan
Forward - move the camera forward towards its longitudinal axis
Backward - move the camera backward
Right - turn the camera to the right around its vertical axis
Left - turn the camera to the left around its vertical axis
Fly + Pan
Move camera up/down/left/right on vertical plane
Forward - Move camera up
Backward - Move camera down
Left - Move camera left
Right - Move camera right
Fly + Turn
Turns the camera.
Forward - Turn the camera upward around its horizontal axis
Backward - Turn the camera downward around its horizontal axis
Right - Turn the camera to the right around its vertical axis
Left - Turn the camera to the left around its vertical axis
Fly + Roll
Inclines the camera.
Forward - Rotate the camera up
Backward - Rotate the camera down
Right - Incline to the left
Left - Incline to the right
Study + Plan
Examines an object from various angles.
Forward - Move the camera forward
Backward - Move the camera backward
Right/Left - Move the camera around the central point which is defined by the center of bounding box of the geometry in the 3D scene
Study + Pan
Same as Fly + Pan
Study + Turn
Examine an object from various angles.
Forward/Backward/Right/Left - Move the camera around the central point which is defined by the center of bounding box of the geometry in the 3D scene
Study + Roll
Incline the camera around the central point which is defined by the center of bounding box of the geometry in the 3D scene.
Right - Incline to the left
Left - Incline to the right
Goto
Use this to move to any point in the scene. Just click on the model and you will moved directly there.
You can use this in conjunction with the mouse wheel if you have the IFAFS Skin on to zoom in/out of a specific point.
Align
Positions the camera's horizontal and longitudinal axes parallel to the scene horizontal plane.
Viewpoint
This allows to switch among the viewpoints in the scene, you can use the arrows to progress sequentially through, or click on View to get a list of all viewpoints.
Restore
Much like the reset button in the Flash controls. Restores the scene to it's original orientation, etc.
Fit
Very useful. Makes the scene completely viewable. 
Others
For added functionality there are a few keyboard & mouse controls as well. To use these make sure you click on the scene at scene at least once,
every time you switch to it from another program. Case doesn't matter at all.
"A"
This toggles the axes on and off.
"V"
This toggles the arrows/letters on and off. When the arrows/letters are off, you cannot toggle between using arrows or letters."
"L"
This toggles between using letters and arrows. If letters/arrows are off, toggle is inactive.
Mouse Wheel
If your mouse has a wheel on it you can use it to move in/out of the scene. Click on the scene whenever you switch to it from another program and move the wheel up to zoom in or down to move out.
Drag field
You can also drag the field around the scene. This works like a normal drag, click on the field and move the mouse around before letting up on the button. ________________________________________________________________
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