| iTool User's Guide: Visualization Properties |

## 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)