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Scripting
Contents
This section assumes you are familiar with Tcl and how to write basic scripts.
Most of TkMedit's functions have Tcl bindings. As you have probably noticed, the interface is just a Tk/Tix window. You can look at the interface script, TkMedit.tcl, to see how most of the functionality is used. Following is a list of Tcl commands defined by TkMedit. You can use these commands in your own scripts and call them with the -tcl command line option to execute them on startup. TkMedit can run in a kind of batch mode in this fashion, altho it still requires X and has to be able to open its main window.
You can also enter these script commands from the shell that TkMedit was launched in. You can use the Tcl source command to load a script file from the Tcl shell as well.
This list is provided for reference. If you can figure out something that works, great, but it is not officially a feature of TkMedit.
Commands
Functions arguments are listed by their name followed by their arguments. Arguments in square brackets are optional.
AverageSurfaceVertexPositions numberOfAverages
Averages the vertex positions of the Main surface numberOfAverages times.
ClearSelection
- Clears the current voxel selection.
ClearUndoVolume
- Clears the undoable voxels.
DebugPrint string
Prints string to debugging output (either the xdebug_TkMedit.txt file or the screen).
ExportChangedSegmentationVolume volume [destinationDirectory]
Saves the segmentation volume in its original location (overwriting the original), or a new location if destinationDirectory is specified. volume should be 0 for the Main volume, and 1 for the Aux volume. The volume will be saved in COR format.
FlipVolume xAxis yAxis zAxis
Flips the Main anatomical volume over an axis. Specify 0 or 1 for xAxis, yAxis, and zAxis to not flip or flip, respectively, on that axis. Axes are in anatomical index coordinate space.
GetSubjectDir volume
Returns the subject directory path. volume should be 0 for the Main volume, and 1 for the Aux volume.
GetSubjectName volume
Returns the subject name. volume should be 0 for the Main volume, and 1 for the Aux volume.
GotoMainVertex vertexNumber
Sets the cursor to the location of the numbered vertex in the Main surface. vertexNumber should be between 0 and the number of vertices in the surface.
GotoOriginalVertex vertexNumber
Sets the cursor to the location of the numbered vertex in the Original surface. vertexNumber should be between 0 and the number of vertices in the surface.
GotoPialVertex vertexNumber
Sets the cursor to the location of the numbered vertex in the Pial surface. vertexNumber should be between 0 and the number of vertices in the surface.
GraphSelectedRegion
- Graphs the average timecourse for the selected voxels.
ImportSurfaceAnnotationToSegmentation surface annotationFileName colorTableFileName
Loads annotationFileName into a surface, creates a new segmentation volume, and goes through the surface, mapping a vertex location to a voxel in the segmentation volume. For each, it looks up a label value from the RGB color stored in the annotation value using colorTableFileName and sets the segmentation value to the label value. surface should be 0 for the Main surface, and 1 for the Aux surface.
LoadAuxVolume volumeFileName
Loads volumeFileName as the Aux volume.
LoadDTIVolumes vectorVolumeFileName intensityVolumeFileName redAxis greenAxis blueAxis
Loads a DTI volume using vectorVolumeFileName as the volume containing the vectors, and intensityVolumeFileName as the volume containing the scaling factor. The former should be a three frame volume and the latter should be a one frame volume. The redAxis, greenAxis, and blueAxis parameters should be x, y, or z, indicating which value in the vector volume corresponds to which color.
LoadFunctionalOverlay volumeFileName registrationType [registrationFileName]
Loads a functional overlay volume from volumeFileName. You must also specify a registrationType, which should be 0 to find a registration file in the same directory as the data, 1 to use an identity registration, and 2 to specify a file. If 2 is the registrationType, use registrationFileName to specify the file. The overlay will be displayed in the graphics widnow.
LoadFunctionalTimeCourse volumeFileName registrationType [registrationFileName]
Loads a functional time course volume from volumeFileName. You must also specify a registrationType, which should be 0 to find a registration file in the same directory as the data, 1 to use an identity registration, and 2 to specify a file. If 2 is the registrationType, use registrationFileName to specify the file. The time course graph will be displayed in a separate window.
LoadGCA volumeFileName transformFileName
Loads a GCA volume from volumeFileName using the transform in transformFileName.
LoadGCARenormalization renormalizationVolumeFileName
Loads a GCA renormalization volume from renormalizationVolumeFileName.
LoadHeadPts headPointsFileName transformFileName
Loads a head points array from headPointsFileName using the transform in transformFileName.
LoadLabel labelFileName
Loads a label file from labelFileName. This will add the voxels in the label file to the selection.
LoadMainSurface surface surfaceFileName
Loads a surface file from surfaceFileName. surface should be 0 for the Main surface, and 1 for the Aux surface. Note that this loads the main surface object, and will unload the Original or Pial surface configurations if they exist.
LoadOriginalSurface surface surfaceFileName
Loads the Original vertex configuration from surfaceFileName into an existing surface. surface should be 0 for the Main surface, and 1 for the Aux surface. Note that the Main surface (that is, the Main Main or Aux Main) must already be loaded; this just loads in an alternate vertex configuration.
LoadPialSurface surface surfaceFileName
Loads the Pial vertex configuration from surfaceFileName into an existing surface. surface should be 0 for the Main surface, and 1 for the Aux surface. Note that the Main surface (that is, the Main Main or Aux Main) must already be loaded; this just loads in an alternate vertex configuration.
LoadSegmentationVolume volume volumeFileName colorTableFileName
Loads a segmentation volume from volumeFileName using the color table in colorTableFileName. volume should be 0 for the Main volume, and 1 for the Aux volume.
LoadSurfaceAnnotation surface annotationFileName
Loads a surface annotation file from annotationFileName into a surface. surface should be 0 for the Main surface, and 1 for the Aux surface. This will color the vertices and edges of the surface display using the RGB annotation values.
LoadVolumeDisplayTransform volume transformFileName
Loads a display transform from transformFileName for an anatomical volume. volume should be 0 for the Main volume, and 1 for the Aux volume.
LoadVolume volumeFileName
Loads volumeFileName as the Main volume.
NewControlPoint
- Creates a new control point where the cursor is.
NewSegmentationVolume volume fromAnatomicalVolume colorTableFileName
Creates a new segmentation volume based on one of the anatomical volumes using the color table in colorTableFileName. volume should be 0 for the Main segmentation volume, and 1 for the Aux segmentation volume, and fromAnatomicalVolume should be 0 for the Main anatomical volume, and 1 for the Aux anatomical volume.
Overlay_RestoreRegistration
- Restores the functional overlay registration to the last saved value.
Overlay_SaveRegistration
- Saves the current overlay registration. Overwrites previous file.
Overlay_SetCondition condition
Sets the functional overlay's current condition. condition must be with in the valid range of conditions.
Overlay_SetDisplayFlag flag value
Sets a display flag for the functional overlay in the current display pane. value should be 0 or 1. flag should be one of the following, corresponding to an item in the View, Configure Overlay... dialog box:
0
Truncate Negative Values
1
Truncate Positive Values
2
Reverse Phase
3
Offset Values
4
Ignore Threshold
5
Grayscale Overlay
6
Opaque Overlay
Overlay_SetRegistrationToIdentity
- Sets the functional overlay registration to the identity matrix.
Overlay_SetThreshold min mid slope
Sets the functional overlay threshold. min and mid should be valid functional values, and slope should a positive floating point number.
Overlay_SetTimePoint timePoint
Sets the functional overlay's current time point. timePoint must be with in the valid range of time points
Overlay_SetVolumeSampleType sampleType
Sets the functional overlay sampling method. sampleType should be 0 for nearest neighbor sampling and 1 for trilinear sampling.
QuitMedit
- Quits the program.
ReadCursor
Reads a location from the edit.dat file and sets the cursor to that location.
ReadVoxelLabels voxelLabelVolume1FileName voxelLabelVolume2FileName
Reads VLI volumes from voxelLabelVolume1FileName and voxelLabelVolume2FileName.
RecomputeSegmentation volume
Recomputes the Main or Aux segmentation volume based on the Main anatomical volume, the GCA volume, and the specified segmentation volume and its changed values. volume should be 0 for the Main volume, and 1 for the Aux volume.
RedrawAll
- This schedules a redraw of the graphics window which will happen at the next update. It is best suited when a redraw does not need to happen until a series of script commands is finished.
RedrawScreen
- This forces an immediate redraw of the graphics window. This should be used when a script takes multiple screen captures in the middle of a loop.
RestoreHeadPts
- Restores the head points transformation to the original matrix.
RestorePreviousSegmentation volume
Restores a segmentation volume to the state it was in before it was recomputed. volume should be 0 for the Main volume, and 1 for the Aux volume.
RestoreVolumeFromSnapshot
- Restores the Main volume to the state it was in when the snapshot was taken.
RotateHeadPts degrees axis
Rotates the head points orientation by degrees degrees over the x, y, or z axis. degrees can be a floating point number and axis should be x, y, or z.
RotateOverlayRegistration degrees axis
Rotates the functional overlay registration by degrees degrees over the x, y, or z axis. degrees can be a floating point number and axis should be x, y, or z.
RotateVolume axis degrees
Rotates the Main anatomical volume over the x, y, or z axis by degrees degrees. degrees can be a floating point number and axis should be x, y, or z.
SaveGCA volumeFileName
Saves the GCA volume as volumeFileName.
SaveLabel labelFileName
Saves the current selection as a label file in labelFileName.
SaveTIFF imageFileName
Takes a screen shot of the graphics window and saves it as an TIFF file in imageFileName.
SaveSegmentationVolume volume [destinationDirectory]
Saves the specified segmentation volume in its original location (overwriting the old file), or in a new location if destinationDirectory is specified. volume should be 0 for the Main volume, and 1 for the Aux volume. The volume will be saved in COR format.
SaveVolume volume
Saves the anatomical volume in its original location, overwriting the old file. volume should be 0 for the Main volume, and 1 for the Aux volume. The volume will be saved in COR format.
SaveVolumeAs volume destinationDirectory
Saves the anatomical volume in destinationDirectory. volume should be 0 for the Main volume, and 1 for the Aux volume. The volume will be saved in COR format.
ScaleOverlayRegistration distance axis
Scales the functional overlay registration by distance over the x, y, or z axis. distance can be a floating point number and axis should be x, y, or z.
SelectVoxelsByFuncValue compareType
Adds to the selection all contiguous voxels whose functional value pass the comparison with the value under the cursor. compareType should be one of the following:
0
Greater than or equal to, or less than or equal to: If the value is positive, this will select all voxels whose value are greater than or equal to the value, and if negative, less than or equal to.
1
Equal to: Values must be equal
2
Greater than or equal to threshold minimum: This will select all voxels whose values are above the threshold minimum
SendCursor
Writes the location of the cursor to the edit.dat file, to be shared with tksurfer.
SetBrushInfo brush low high new
Sets information about the anatomical Edit Voxel Tool shape. brush should be 2 or 3, for the brush associated with button 2 or 3. low, high, and new should be within the range of voxel values, and set the threshold and new values for the brush.
SetBrushInfoToDefaults
- Restores the brush info (see above) to the default values.
SetBrushShape radius shape 3D
Sets the brush shape, which affects both edit tools and the Select Voxels tool. radius should be an integer greater than 0. shape should be 0 for circle, and 1 for square. 3D should be 0 for in-plane edits only, and 1 for three dimensional editing.
SetBrushTarget target
Sets the brush Edit Voxel Tool target. target should be 0 for the Main volume, and 1 for the Aux volume, and 2 for the Main and Aux volume.
SetCursor coordinateSpace x y z
Sets the cursor in the volume and moves the current slice to display it. coordinateSpace should be 0 for volume index space, 1 for RAS world space, 2 for surface RAS space, and 3 for (real, not MNI) Talairach space. x, y, and z can be floating point numbers.
SetCursorColor r g b
Sets the display color for the cursor. r, g, and b should be floating point values from 0 to 1.
SetCursorShape shape
Sets the display shape for the cursor. shape should be 0 for crosshair and 1 for diamond.
SetCursorToCenterOfSelection
- Sets the cursor location to the center of the current selection, changing the view appropriately.
SetDTIAlpha alpha
Sets the opacity alpha for the DTI overlay. alpha should be a floating point number between 0 and 1.
SetDisplayConfig numberOfColumns numberOfRows linkPolicy
Sets the number of rows and columns of display panes in the graphics window. Calling this function will configure the panes in default orientations and slice numbers. numberOfCols and numberOfRows should be between 1 and 4. linkPolicy should be one of the following:
0
None: Normal link policy; cursor actions in other panes don't affect each other.
1
Cursor: Changing the cursor in one pane will set the cursor in other panes. Zoom levels are linked. Orientation changes are linked. When the display is set to this configuration, all panes are set to different orientations around the cursor.
2
Slice: Changing the slice number in one view will change all other views by the same amount. Cursor changes are not linked. Zoom levels are linked. Orientation changes are linked. When the display is first set to this configuration, all panes are set to the same orientation but to different slices.
SetDisplayFlag flag value
Sets a display flag for the current display pane. flag should be an index number below, value should be 0 or 1. flag should be one of the following, corresponding to an item in the View menu:
1
Aux Volume
2
Anatomical Volume
3
Cursor
4
Main Surface
5
Original Surface
6
Pial Surface
7
Interpolate Surface Vertices
8
Surface Vertices
9
Control Points
10
Selection
11
Functional Overlay
12
Functional Color Scale Bar
13
Mask to Functional Overlay
14
Mask Overlay to Aux Volume
15
Segmentation Volume Overlay
16
Aux Segmentation Volume
17
Segmentation Label Volume Count
18
DTI Overlay
20
Focus Frame
21
Undoable Voxels
22
Axes
23
Maximum Intensity Porjection
24
Head Points
25
Verbose GCA Dump
SetFloodSelectParams 3D sourceVolume fuzziness distance
Sets the parameters for the flood select part of the Select Voxels tool. 3D should be 0 or 1. sourceVolume should be 0 for the Main anatomical volume, 1 for the Aux anatomical volume, 2 for the Main segmentation volume, and 3 for the Aux segmentation volume. fuzziness and distance should be floating point numbers.
SetFuncOverlayAlpha alpha
Sets the opacity alpha for the functional overlay. alpha should be a floating point number between 0 and 1.
SetGCADisplayStatus displayIntermediateResults
Sets the display status for GCA operations. displayIntermediateResults should be 0 or 1.
SetLinkedCursorFlag linked
Sets cursor linking on or off. linked should be 0 or 1.
SetOrientation orientation
Sets the orientation of the current display pane. orientation should be 0 for coronal, 1 for horizontal, or 2 for sagittal.
SetSegBrushInfo newValue 3D sourceVolume fuzziness distance
Sets the parameters for the Edit Segmentation tool, both brush and fill parameters. newValue should be a valid index in the currently loaded color table. 3D should be 0 or 1. sourceVolume should be 0 for the Main anatomical volume, 1 for the Aux anatomical volume, 2 for the Main segmentation volume, and 3 for the Aux segmentation volume. fuzziness and distance should be floating point numbers.
SetSegmentationAlpha alpha
Sets the opacity alpha for the segmentation overlay. alpha should be a floating point number between 0 and 1.
SetSelectedHeadPointLabel label
Sets the label for the currently selected head point. label should be a string.
SetSlice sliceNumber
Sets the slice number in the currently selected display pane for the anatomical volume. Note that this may trigger updates in other panes due to cursor linking. sliceNumber should be within the valid range of volume index coordinates.
SetSurfaceDistanceAtCursor
- Copies the current surface distance value into the Main surface vertex nearest the cursor.
SetSurfaceLineColor surface set r g b
Sets the surface line color. surface should be 0 for the Main surface, and 1 for the Aux surface. set should be 0 for Main, 1 for Original, and 2 for Pial. r, g, and b should be floating numbers from 0 to 1.
SetSurfaceLineWidth surface set width
Sets the surface line width. surface should be 0 for the Main surface, and 1 for the Aux surface. set should be 0 for Main, 1 for Original, and 2 for Pial. width should be an integer.
SetTool tool
Sets the currently active tool. tool should be 0 for Navigate, 1 for Select Voxels, 2 for Edit Voxels, 3 for Edit Segmentation, or 4 for Edit Control Points.
SetVolumeBrightnessContrast volume brightness contrast
Sets the brightness and contrast values for a volume. volume should be 0 for the Main volume, and 1 for the Aux volume. brightness should be a floating point number from 0 to 1 (0 is brighter than 1) and contrast should be a floating point number from 0 to 30.
SetVolumeColorScale volume brightness contrast min max
Sets the color (grayscale, really) scale for a volume. volume should be 0 for the Main volume, and 1 for the Aux volume. brightness should be a floating point number from 0 to 1 (0 is brighter than 1) and contrast should be a floating point number from 0 to 30. min and max define the values for black and white and should be valid numbers in the voxel value range.
SetVolumeMinMax volume min max
Sets the color (grayscale, really) scale for a volume. volume should be 0 for the Main volume, and 1 for the Aux volume. min and max define the values for black and white and should be valid numbers in the voxel value range.
SetVolumeResampleMethod volume method
Sets the resampling method for an anatomical volume. volume should be 0 for the Main volume, and 1 for the Aux volume. method should be 0 for RAS and 1 for slice.
SetVolumeSampleType volume sampleType
Sets the sampling method for an anatomical volume. volume should be 0 for the Main volume, and 1 for the Aux volume. sampleType should be 0 for nearest neighbor, 1 for trilinear, and 2 for sinc.
SetZoomCenter x y z
Sets the zoom center of the current display pane, changing the visible area without setting the cursor. x, y, and z should be integers in the anatomical index space.
SetZoomLevel level
Sets the zoom level of the current display pane. level should be an integer from 1 to 128.
ShowNearestInterpolatedMainVertex
- Sets the cursor to the point of the nearest interpolated vertex on the Main surface configuration.
ShowNearestInterpolatedOriginalVertex
- Sets the cursor to the point of the nearest interpolated vertex on the Original surface configuration.
ShowNearestInterpolatedPialVertex
- Sets the cursor to the point of the nearest interpolated vertex on the Pial surface configuration.
ShowNearestMainVertex
- Sets the cursor to the point of the vertex on the Main surface configuration.
ShowNearestOriginalVertex
- Sets the cursor to the point of the vertex on the Original surface configuration.
ShowNearestPialVertex
- Sets the cursor to the point of the vertex on the Pial surface configuration.
SmartCutAtCursor
- Performs a smart cut operation at the current cursor location.
SmoothFunctionalOverlay sigma
- Smooths the functional overlay volume with given sigma. sigma should be a floating point number.
SnapshotVolume
- Saves the state of the Main anatomical volume so it can be restored later.
ThresholdVolume thresholdValue direction newValue
Performs a thresholding operation on the Main anatomical volume. thresholdValue is the value above or below which all values will be set to newValue, and both must be valid anatomical values. direction should be 0 for below, or 1 for above.
TimeCourse_PrintSelectionRangeToFile fileName
Prints information about the averaged time course values over all time points for the selected voxels to a text file fileName.
TimeCourse_SetDisplayFlag flag value
Sets a display flag for the functional time course. value should be 0 or 1. flag should be one of the following, corresponding to an item in the View, Configure Time Course... dialog box:
7
Open Graph Window
8
Offset Values
9
Show Prestim Offset
TimeCourse_SetNumPreStimPoints numPoints
Sets the number of pre-stim time points in the time course volume to numPoints.
TimeCourse_SetTimeResolution resolution
Sets the time resolution of the time course volume to resolution.
TranslateHeadPts distance axis
Translates the head points orientation by distance units over the x, y, or z axis. axis can be x, y, or z.
UndoLastEdit
- Performs and undo.
UnloadAllSurfaces
- Unloads the Main and Aux surface.
UnloadGCA
- Unloads the GCA volume.
UnloadSurface surface
Unloads a surface. surface should be 0 for the Main surface, or 1 for the Aux surface.
UnloadVolume volume
Unloads an anatomical volume. volume should be 0 for the Main volume, or 1 for the Aux volume.
UnloadVolumeDisplayTransform volume
Unloads an anatomical volume display transform. volume should be 0 for the Main volume's transform, or 1 for the Aux volume's transform.
WriteControlPointFile
- Writes the control points to the control.dat file. This is done automatically when adding a new point, but not when removing a point.
WriteHeadPointsFile
- Writes the head points file. This overwrites the previous file.
WriteHeadPointsTransform
- Writes the head points transform file. This overwrites the previous file.
WriteSurfaceValues surface valueFileName
Writes the a surface's vertex values to a value file valueFileName. surface should be 0 for the Main surface, or 1 for the Aux surface.
Index
Anatomical
FlipVolume LoadAuxVolume LoadVolume LoadVolumeDisplayTransform RestoreVolumeFromSnapshot RotateVolume SaveVolume SaveVolumeAs SetVolumeBrightnessContrast SetVolumeColorScale SetVolumeMinMax SetVolumeResampleMethod SetVolumeSampleType SmartCutAtCursor SnapshotVolume ThresholdVolume UndoLastEdit UnloadVolume UnloadVolumeDisplayTransform
DTI
LoadDTIVolumes SetDTIAlpha Editing ClearUndoVolume FlipVolume RestoreVolumeFromSnapshot RotateVolume SetBrushInfo SetBrushInfoToDefaults SetBrushShape SetBrushTarget SetSegBrushInfo SetTool SmartCutAtCursor SnapshotVolume ThresholdVolume UndoLastEdit
Functional
GraphSelectedRegion LoadFunctionalOverlay LoadFunctionalTimeCourse Overlay_RestoreRegistration Overlay_SaveRegistration Overlay_SetCondition Overlay_SetDisplayFlag Overlay_SetRegistrationToIdentity Overlay_SetThreshold Overlay_SetTimePoint Overlay_SetVolumeSampleType RotateOverlayRegistration ScaleOverlayRegisgtration SelectVoxelsByFuncValue SetFuncOverlayAlpha SmoothFunctionalOverlay TimeCourse_PrintSelectionRangeToFile TimeCourse_SetDisplayFlag TimeCourse_SetNumPreStimPoints TimeCourse_SetTimeResolution
Control Points
NewControlPoint WriteControlPointFile
GCA
LoadGCA LoadGCARenormalization SaveGCA SetGCADisplayStatus UnloadGCA
Head Points
LoadHeadPts RestoreHeadPts RotateHeadPts SetSelectedHeadPointLabel TranslateHeadPts TranslateOverlayRegisgtration WriteHeadPointsFile WriteHeadPointsTransform
I/O
LoadAuxVolume LoadDTIVolumes LoadFunctionalOverlay LoadFunctionalTimeCourse LoadGCA LoadGCARenormalization LoadHeadPts LoadLabel LoadMainSurface LoadOriginalSurface LoadPialSurface LoadSegmentationVolume LoadSurfaceAnnoation LoadVolume LoadVolumeDisplayTransform ReadCursor ReadVoxelLabels SaveGCA SaveLabel SaveRGB SaveSegmentationVolume SaveVolume SaveVolumeAs UnloadAllSurfaces UnloadGCA UnloadSurface UnloadVolume UnloadVolumeDisplayTransform WriteControlPointFile WriteHeadPointsFile WriteHeadPointsTransform WriteSurfaceValues
Misc
DebugPrint QuitMedit SaveRGB SetTool
Selection
ClearSelection LoadLabel SaveLabel SetCursorToCenterOfSelection SetFloodSelectParams
Surface
AverageSurfaceVertexPositions GotoMainVertex GotoOriginalVertex GotoPialVertex LoadMainSurface LoadOriginalSurface LoadPialSurface LoadSurfaceAnnoation SetSurfaceDistanceAtCursor SetSurfaceLineColor SetSurfaceLineWidth ShowNearestInterpolatedMainVertex ShowNearestInterpolatedOriginalVertex ShowNearestInterpolatedPialVertex ShowNearestMainVertex ShowNearestOriginalVertex ShowNearestPialVertex UnloadAllSurfaces UnloadSurface WriteSurfaceValues
Segmentation
ExportChangedSegmentationVolume GetSubjectDir GetSubjectName ImportSurfaceAnnotationToSegmentation LoadSegmentationVolume NewSegmentationVolume ReadVoxelLabels RecomputeSegmentation RestorePreviousSegmentation SaveSegmentationVolume SetSegmentationAlpha UndoLastEdit
Viewing
ReadCursor RedrawAll RedrawScreen SendCursor SetCursor SetCursorColor SetCursorShape SetDTIAlpha SetDisplayConfig SetDisplayFlag SetFuncOverlayAlpha SetLinkedCursorFlag SetOrientation SetSegmentationAlpha SetSlice SetSurfaceLineColor SetSurfaceLineWidth SetVolumeBrightnessContrast SetVolumeColorScale SetVolumeMinMax SetVolumeResampleMethod SetVolumeSampleType SetZoomCenter SetZoomLevel ShowNearestInterpolatedMainVertex ShowNearestInterpolatedOriginalVertex ShowNearestInterpolatedPialVertex ShowNearestMainVertex ShowNearestOriginalVertex ShowNearestPialVertex TimeCourse_SetDisplayFlag