==== Isosurface Viewer ====
This viewer shows 3D images. It is possible to load a stack of 3D images into the cow and display it by the Isosurface Viewer.
==== Usage ====
The Density Threshold is adjusted to get the preferred volume.\\
**Current scene volume**
|< 120% 20% >|
|{{:eyes:flowcontrol:delete.png?nolink|}}| Delete the current 3D image |
|{{:eyes:flowcontrol:color.png?nolink|}}| Change the color of the current 3D image   | 
|{{:eyes:flowcontrol:hide.png?nolink|}}  | Hide/Show the current 3D image |     
**Current transformation** \\
Here, the 3D image can be translated, scaled or rotated in X,Y or Z direction. Insert the preferred values and push the Apply button. With the save button it is possible to save the current 3D image to PNG file.\\
**Global Tools** 
|< 120% 20% >|
|{{:eyes:flowcontrol:coordinate.png?nolink|}}| Hide the coordinate system|
|{{:eyes:flowcontrol:colormap.png?nolink|}} | Overlay the 3D image with a color map |
|{{:eyes:flowcontrol:movecoord.png?nolink|}} | Move the coordinate system in control mode trackball or joystick   | 
|{{:eyes:flowcontrol:move3d.png?nolink|}}    | Move the 3D image in control mode trackball or joystick  |           
|{{:eyes:flowcontrol:resetposition.png?nolink|}} | Reset camera or the 3D image to the starting position |          

**3D Gauss filtering**
|< 120% 20% >|
|{{:eyes:flowcontrol:3dgaussfilt.png?nolink|}}|  |
|{{:eyes:flowcontrol:sdev-rad.png?nolink|}}| Use Gauss filter on 3D with the specified standard deviation (Sdev) and radius (Rad)  |
|{{:eyes:flowcontrol:ruler.png?nolink|}}| Measure distance between red and green sphere in pixels |
|{{:eyes:flowcontrol:gitter.png?nolink|}}| Show the first n 3Ds (specified in 19) in a rectengular grid  |




To overlay the map with a color scheme which visualizes e.g. local Variance use the following workflow
  - Load the 3D with the mapping parameter (e.g. variance map)
  - Click on the global tool color overlay
  - Hide the color map
  - Drag and drop the map you want to color in the window
  - Adjust the threshold

{{ :eyes:flowcontrol:isosurfaceviewer.png?nolink |}}