[vtk-developers] vtkBoundedPlanePlacer problem

[Karthik Krishnan]

Hi Dean,

Could you please check if the following change to vtkImageActorPointPlacer
fixes it.

On line 78, replace
   this->Placer->ComputeWorldPosition( ren, displayPos, refWorldPos,
worldPos, worldOrient );
with
   this->Placer->ComputeWorldPosition( ren, displayPos, worldPos,
worldOrient );

If so, please commit it.

Thanks,
Regards
--
karthik

On 10/16/07, dean.inglis at camris.ca <dean.inglis at camris.ca> wrote:
>
> Hi,
>
> there were some changes made to vtkBoundedPointPlacer for the
> new vtkParallelopipedWidget that does not appear to allow
> for simple placement on bounded 2D planes and breaks the functionality
> of vtkImageActorPointPlacer .  Can anyone verify by
> drawing on an image with vtkContourWidget and then trying to move
> the widget's handles.  See script below...
>
> Dean
>
>
> #------------------------------------------------------------------------------------
> package require vtk
> package require vtkinteraction
>
> # Start by loading some data.
> #
> vtkVolume16Reader v16
>   v16 SetDataDimensions 64 64
>   v16 SetDataByteOrderToLittleEndian
>   v16 SetImageRange 1 93
>   v16 SetDataSpacing 3.2 3.2 1.5
>   v16 SetFilePrefix "$VTK_DATA_ROOT/Data/headsq/quarter"
>   v16 Update
>
> # Display a y-z plane.
> #
> vtkImageViewer2 viewer
>   viewer SetInput [v16 GetOutput]
>   viewer SetSliceOrientationToXY
>
> vtkRenderWindowInteractor iren
>   viewer SetupInteractor iren
>
>   vtkContourWidget ContourWidget
>   ContourWidget KeyPressActivationOn
>
>   vtkOrientedGlyphContourRepresentation ContourRep
>   ContourWidget SetRepresentation ContourRep
>
>   ContourWidget   SetInteractor iren
>
>
>   #vtkImageActorPointPlacer placer
>   #placer SetImageActor [ viewer GetImageActor ]
>
>   vtkBoundedPlanePointPlacer placer
>
>   placer DebugOn
>
>   ContourRep SetPointPlacer placer
>
> set bounds [[viewer GetImageActor] GetBounds]
> set xmin [lindex $bounds 0]
> set xmax [lindex $bounds 1]
> set ymin [lindex $bounds 2]
> set ymax [lindex $bounds 3]
> set zmin [lindex $bounds 4]
> set zmax [lindex $bounds 5]
>
>   placer SetProjectionNormalToZAxis
>
> set center [[viewer GetImageActor] GetCenter]
> set c [lindex $center 2]
>   placer SetProjectionPosition  $c
>
>   vtkPlane p1
>   p1 SetOrigin $xmin $ymin $zmin
>   p1 SetNormal 1.0 0.0 0.0
>
>   vtkPlane p2
>   p2 SetOrigin $xmin $ymin $zmin
>   p2 SetNormal 0.0 1.0 0.0
>
>   vtkPlane p3
>   p3 SetOrigin $xmax $ymax $zmax
>   p3 SetNormal -1.0 0.0 0.0
>
>   vtkPlane p4
>   p4 SetOrigin $xmax $ymax $zmax
>   p4 SetNormal 0.0 -1.0 0.0
>
>
>   placer AddBoundingPlane p1
>   placer AddBoundingPlane p2
>   placer AddBoundingPlane p3
>   placer AddBoundingPlane p4
>
>
>
>   [ContourRep GetLinesProperty] SetColor 0 0 1
>   [ContourRep GetActiveProperty] SetColor 0 1 0
>   [ContourRep GetProperty] SetColor 0 1 0
>
> iren AddObserver UserEvent {wm deiconify .vtkInteract}
>
> viewer Render
>
> ContourWidget On
>
>
> # Prevent the tk window from showing up then start the event loop.
> wm withdraw .
> _______________________________________________
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>



-- 
Karthik Krishnan
R&D Engineer,
Kitware Inc.
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