This article contains a sample script for loading a test lattice, adding a VolRender module to it, and changing all the properties of the VolRender module.

To run this script:

1. Copy the script below, or click here to download the BAS file: VolRenderModule.bas.
2. In a Windows Explorer window, navigate to C:\Program Files\Golden Software\Voxler 4\Scripter.
3. Double click on Scripter.exe to launch Scripter.
4. Press Ctrl+A to select all of the existing lines then press Delete.
5. If you copied this script, press Ctrl+V to paste it into Scripter. If you downloaded it, click File | Open, select the BAS file from your downloads directory, and click Open.
6. Click Script | Run to run the script.
    

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'********************************************************************************************
' VolRenderModule.bas
' This script loads a test lattice and adds a VolRender module to it.
' It then changes all the properties of the VolRender module.
'********************************************************************************************

' If Voxler is running, retrieve the current instance of Voxler.  Otherwise,
' create a new instance of Voxler.
Function VoxlerApplication()
   On Error Resume Next
   Set VoxlerApplication = GetObject(, "Voxler.Application")
   If Err.Number <> 0 Then
      Set VoxlerApplication = CreateObject("Voxler.Application")
   End If
   On Error GoTo 0
End Function

Sub Main
 'Retrieve running instance of Voxler or create a new instance of Voxler
  Dim VoxlerApp As Object
  Set VoxlerApp = VoxlerApplication()

 'Make Voxler visible
  VoxlerApp.Visible = True

 'Access CommandApi
  Set CommandApi = VoxlerApp.CommandApi

 'Create a new Voxler document
  CommandApi.Construct ("New")
  CommandApi.DoOnce()

 'Load the test lattice
  CommandApi.Construct("CreateModule")
  CommandApi.Option ("Type", "TestLattice")
  CommandApi.Do()

 'Add a VolRender module
  CommandApi.Construct("CreateModule")
  CommandApi.Option ("AutoConnect", "True")
  CommandApi.Option ("SourceModule", "TestLattice")
  CommandApi.Option ("Type", "VolRender")
  CommandApi.Do()

 'Change the volrender component
  CommandApi.Construct("ModifyModule")
  CommandApi.Option ("Module", "VolRender")
  CommandApi.Option ("VolRenderComponent", "2")
  CommandApi.Do()

 'Change the volrender drawing style
 'Value is 0 or 1 for 2D Textures or 3D Textures
  CommandApi.Option ("VolRenderDrawStyle", "1")
  CommandApi.Do()

 'Change the volrender color map
  CommandApi.Option ("VolRenderColormap", "Rainbow")
  CommandApi.Do()

 'Change the number of slices
 'Option only available if VolRenderDrawStyle is set to 1
  CommandApi.Option ("VolRenderNumSlices","200")
  CommandApi.Do()

 'Change the opacity of the volrender
 'Varies between 0 and 1. 0 is fully transparent, 1 is fully opaque
  CommandApi.Option ("VolRenderOpacity", "0.7")
  CommandApi.Do()

 'Change the method used to combine voxels along the viewing rays
 'Value is 0, 1, or 2 for Maximum Intensity, Sum Intensity, or Alpha Blending
  CommandApi.Option ("VolRenderComposition","2")
  CommandApi.Do()

 'Change the interpolation method
 'Value is 0 or 1, for Nearest Neighbor or Trilinear
  CommandApi.Option ("VolRenderInterpolation", "1")
  CommandApi.Do()

 'Turn off paletted textures for volrender
  CommandApi.Option ("VolRenderUsePalette", "False")
  CommandApi.Do()

 'Display the VolRender legend
  CommandApi.Option ("VolRenderLegendEnable", "True")
  CommandApi.Do()

 'Change the legend orientation
 '0 is for horizontal, 1 is for vertical
  CommandApi.Option ("VolRenderLegendOrientation", "0")
  CommandApi.Do()

 'Change the legend X position
 'Ranges from 0-1
  CommandApi.Option ("VolRenderLegendXPos", "0.3")
  CommandApi.Do()

 'Change the legend Y position
 'Ranges from 0-1
  CommandApi.Option ("VolRenderLegendYPos", "0.9")
  CommandApi.Do()

 'Change the legend width
 'Ranges from 0-200
  CommandApi.Option ("VolRenderLegendWidth", "20")
  CommandApi.Do()

 'Change the legend length
 'Ranges from 0-1024
  CommandApi.Option ("VolRenderLegendLength", "400")
  CommandApi.Do()

 'Change the legend title
  CommandApi.Option ("VolRenderLegendTitle", "Legend Title")
  CommandApi.Do()

 'Change the legend title font size
 'Ranges from 4-72
  CommandApi.Option ("VolRenderLegendTitleHeight", "20")
  CommandApi.Do()

 'Change the number of labels displayed in a legend
  CommandApi.Option ("VolRenderLegendNumLabels", "3")
  CommandApi.Do()

 'Change the legend to use custom labels
  CommandApi.Option ("VolRenderLegendUseCustomLabels", "True")
  CommandApi.Do()

 'Set the custom labels for the legend
  CommandApi.Option ("VolRenderLegendCustomLabels", "0.07:low, 0.21:medium, 0.45:intermediate, 0.72:elevated, 0.97:high")
  CommandApi.Do()

 'Set the height for the legend labels
  CommandApi.Option ("VolRenderLegendLabelHeight", "8")
  CommandApi.Do()

 'Set the label format type for the legend
  CommandApi.Option ("VolRenderLabelFormatType", "0")
  CommandApi.Do()

 'Set the number of digits to display on the labels
  CommandApi.Option ("VolRenderLabelFormatNumDigits", "2")
  CommandApi.Do()

 'Set the legend label prefix
  CommandApi.Option ("VolRenderLabelFormatPrefix", "pre-")
  CommandApi.Do()

 'Set the legend label postfix
  CommandApi.Option ("VolRenderLabelFormatPostfix", "-post")
  CommandApi.Do()

 'Set the legend font
  CommandApi.Option ("VolRenderLegendFont", "Arial")
  CommandApi.Do()

 'Turn on or off antialiasing for the legend
  CommandApi.Option ("VolRenderLegendAntialias", "True")
  CommandApi.Do()

 'Set the line and text color for the legend
  CommandApi.Option ("VolRenderLegendFGColor", "Blue")
  CommandApi.Do()

 'Set the background color for the legend
  CommandApi.Option ("VolRenderLegendBGColor", "10% Black")
  CommandApi.Do()

 'Turn on or off the display of the legend background
  CommandApi.Option ("VolRenderLegendShowBackground", "True")
  CommandApi.Do()

End Sub

Updated July 9, 2018