Editing Vtk/SimpleCubeTutorial (section)

===Other Knobs to Twist===
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'''<font color="darkblue">Cheetsheet</font>'''
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Module:
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Method Action:
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Result
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vtkPolyDataReader
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SetLookupTableName = my_table
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'''my_table'''<sup>&dagger;</sup> 
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vtkPolyDataReader
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SetLookupTableName = default
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<font size="-1">VTK's default hue-based color table </font>
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<font size="-1">Color table provided by ''vtkLookupTable'' module, if one hooked into ''vtkPolyDataMapper'' </font>
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vtkPolyDataMapper
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ScalarVisibilityOff
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Color defined by vtkProperty module 
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vtkProperty
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SetRepresentationToWireframe
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Rendered as wireframe only 
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<font size="-1"><sup>&dagger;</sup>Table obtained from ''Simple Legacy Formatted'' input file</font>
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<font color="blue">Switch Between Different Color Tables:</font>
* When using the input data file associated with Example E, the six faces of the cube will be colored according to the values assigned by the user to the "my_table" LOOKUP_TABLE.  You can straightforwardly switch to VTK's "default" color table without further modifying the input data file by clicking on (i.e., selecting) the "vtkPolyDataReader" module in the VisTrails pipeline, dragging the "SetLookupTableName" method into the "Set Methods" segment of the VisTrails Builder Window, typing the string "default" into the provided window, then reexecuting the pipeline.  (You can switch back to the user-provided color table by typing in the string "my_table", then reexecuting the pipeline.)
* You can also revert back to the tomato-colored cube (or whatever color is specified inside the "vtkProperty" module) by clicking on the "vtkPolyDataMapper" module in the VisTrails pipeline, dragging the "ScalarVisibilityOff" method into the "Set Methods" segment of the BisTrails Builder Window, then reexecuting the pipeline.

<font color="blue">Transparency:</font>
* The fourth floating-point number <math>~(\alpha)</math> that appears in each row of the color LOOKUP_TABLE allows you to assign a transparency (as well as a specific color) to each polygon that has the relevant scalar value.  Experiment with changing this number from 1.0 (opaque) to 0.0 (fully transparent, or any fractional value in between (partial transparency).

<font color="blue">Use vtkLookupTable Module:</font>
* You can construct a wide range of different color Lookup Tables by adding the "vtkLookupTable" module to the VisTrails pipeline.  In an [[vtk/ColorLookupTablea#Color_Lookup_Tables|accompanying presentation]], we explain and illustrate how this is done.

<font color="blue">Wireframe:</font>
* If, at any time, you want to render only the underlying ''wireframe'' structure of your three-dimensional configuration, simply activate the '"SetRepresentationToWireframe" method inside the "vtkProperty" module.