3D Volume Viewer#

Though there is no segmentation that can be performed in the 3D volume viewer, it is a very useful function in Seg3D. It allows the user to see the 3D representation of the original and segmented data. There are many objects that can be viewed in the 3D viewer such as the 2D slices in 3D, isosurfaces of the segmented data, volume rendering of the image data, depth cues, and clipping planes. The purpose of this viewer is to allow you to view your data in as many ways as possible to facilitate segmentation.

Table 4 Mouse Functions in the 3D Volume Viewer#

Mouse Command

Function

left button drag

Pan scene

middle button drag

Rotate scene

right button drag

Zoom in/out on scene
Table 5 Keyboard Actions in the 3D volume Viewer#

Keyboard Action

Function

H

Toggle volume lighing

I

Toggle isosurface visibility

T

Toggle overlay visibility

L

Toggle lock viewer (to other locked views of the same type)
Table 6 Icons and Actions in the 3D Viewer#

Icon

Function
../../../../../_images/AutoViewOff.png

Autoview Icon: This icon forces the panel to fit the objects in viewer with maximum size.
../../../../../_images/LockOff.png

Lock View Icon: This icon toggles the viewer lock on the panel (shortcut: L). Any changes to any locked viewers will change all the views. Viewers must be the same type and each must be locked to use this function.
../../../../../_images/AlignOff.png

Snap to Axis Icon: This icon will move the scene so that the viewing angle is aligned with the nearest axis. This will effectively “straighten” the scene.
../../../../../_images/LightOff.png

Lighting Icon: This icon toggles the lighting in the 3D viewer. With the lighting disable, the images will be shaded as if they were flat, i.e., no shading.
../../../../../_images/FogOff.png

Depth Cue Icon: This icon toggles the depth cue for the 3d viewer. This depth cue acts as fog, blending objects further from the camera into the background. Fog parameters can be changed in the volume view window (see Fog Panel).
../../../../../_images/ClipOff.png

Clipping Icon: This icon toggles the viewing of the clipping planes in the 3D viewer. Clipping planes must be created before they can be seen in the volume viewer (see Clipping Planes Panel).
../../../../../_images/IsosurfaceVisibleOff.png

Isosurface Visibility Icon: This icon toggles visibility of the isosurfaces in the 3D viewer. This functions effects all the isosurfaces are declared visible in the layer manager.
../../../../../_images/SlicesVisibleOff.png

Slice Visibility Icon: This icon toggles visibility of the slices in the 3D viewer.
../../../../../_images/InvisibleSlicesVisibleOff.png

Invisible Slice Visibility Icon: This icon toggles visibility of the invisible slices in the 3D viewer. Invisible slices are left when 2D viewers are destroyed.
../../../../../_images/VolumeRenderingOff.png

Volume Rendering Visibility Icon: This icon toggles visibility of the Volume Rendering in the 3D viewer. Volume Rendering must first be created in the Volume View window (see Volume Rendering Panel).
../../../../../_images/VolumeVisibleOff.png

Volume visibility Icon: This icon toggles visibility of the borders of the active layer in the 3D viewer.
../../../../../_images/OverlayOff.png

Overlay Icon: This icon will toggle the visibility of the overlay on the viewer. This will allow unobstructed viewing of the scene.