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Volume

Figure D-18: Visualization Browser with Volume Properties Displayed

Figure D-18: Visualization Browser with Volume Properties Displayed

These properties control volume object visualizations. For each property, the type of control and the values that can be assigned are listed. For a description of how a particular control is used, refer to Property Controls.

Table D-48: Volume Properties 

Table D-48: Volume Properties 
Property
Control Type: Values
Display Scale
Set the display scale for the selected volume.
Select Display Scale Bottom/Top Edit
Color & Opacity Table 0
Color: By selecting Edit Color Table Edit access the color table to manipulate plot color values
Note - To edit the opacity only in the editor, uncheck the R, G, and B boxes in both the Modify and Display rows. Edit the remaining line by clicking on and dragging the line in the window. Click OK when finished.
Color & Opacity Table 1
Color: By selecting Edit Color Table Edit access the color table to manipulate plot color values.
Subvolume
String: Edit SubVolume Extents.
Auto render
Boolean: Automatically render the volume each time the window is redrawn? Choose True or False. Default = False
Quality
String List: Quality of the volume. Choose between these values:
  • Low (texture maps)
  •  

  • High (volume)
Default = Low
Boundary
String List: Boundary around the volume. Choose between these values:
  • Off
  •  

  • Wire frame
  •  

  • Solid walls
Default = Solid walls
Boundary transparency
Number: Percent transparency of the boundary around the volume (wire frame or solid walls). Move slider to change value.
Default = 90
Render step X
Number: Stepping factor through the voxel matrix in the x direction.
Default = 1
Render step Y
Number: Stepping factor through the voxel matrix in the y direction.
Default = 1
Render step Z
Number: Stepping factor through the voxel matrix in the z direction.
Default = 1
Extents color
Color: Color for the volume. Click to choose from the default color palette, or specify RGB values.
Default = [0,0,0] (black)
Ambient color
String: Choose from default color palette or specify RGB values.
Default = [255, 255, 255] (white)
Composite function
String: Choose composite function.
Default = Alpha Blending
Acceleration hints
Boolean: Use acceleration hints? Choose Enable or Disable. Default = Disable
Interpolation
String List: Set interpolation type. Choose between these values:
  • Nearest neighbor
  •  

  • Trilinear
Default = Nearest neighbor
Use lighting
Boolean: Use lighting? Choose True or False. Default = False
Voxel gradient
Color: Color of the volume. Click to choose from the default color palette, or specify RGB values.
Default = [0,0,0] (black)
Update Z Buffer
Boolean: Update Z Buffer? Choose True or False.
Default = True
Skip zero opacity
Boolean: Skip zero opacity? Choose True or False.
Default = True

  IDL Online Help (March 01, 2006)