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<DIV style="DISPLAY: inline; FONT-FAMILY: ">Hi</DIV></DIV>
<DIV>
<DIV style="DISPLAY: inline; FONT-FAMILY: "> </DIV></DIV>
<DIV>
<DIV style="DISPLAY: inline; FONT-FAMILY: ">I am trying to do tricky part as
match implicit surface with parametric surface but not getting proper
result.</DIV></DIV>
<DIV>
<DIV style="DISPLAY: inline; FONT-FAMILY: "> </DIV></DIV>
<DIV>
<DIV style="DISPLAY: inline; FONT-FAMILY: ">First I create implicit surface
using vtkPlane->vtkSampleFunction and create parametric surface using
vtkPlaneSource. Then a</DIV>
<DIV style="DISPLAY: inline; FONT-FAMILY: ">pply transformation to both as
rotate 20 degree in x and rotate 30 degree in Y. </DIV>
<DIV style="DISPLAY: inline; FONT-FAMILY: ">Both output should be similar but
it’s different. I am not able to figure out reason. </DIV></DIV>
<DIV>
<DIV style="DISPLAY: inline; FONT-FAMILY: "> </DIV></DIV>
<DIV>
<DIV style="DISPLAY: inline; FONT-FAMILY: ">As you can see in picture red plane
is produced using vtkSampleFunction and white one is using
vtkPlaneSource.</DIV></DIV>
<DIV>
<DIV style="DISPLAY: inline; FONT-FAMILY: "> </DIV></DIV>
<DIV>
<DIV style="DISPLAY: inline; FONT-FAMILY: ">I attached screen shot and code if
any one can explain me why it is different.</DIV></DIV>
<DIV>
<DIV style="DISPLAY: inline; FONT-FAMILY: "> </DIV></DIV>
<DIV>
<DIV style="DISPLAY: inline; FONT-FAMILY: "> </DIV></DIV>
<DIV>
<DIV style="DISPLAY: inline; FONT-FAMILY: ">code</DIV></DIV>
<DIV>
<DIV style="DISPLAY: inline; FONT-FAMILY: "> </DIV></DIV>
<DIV>
<DIV style="DISPLAY: inline; FONT-FAMILY: "> </DIV></DIV>
<DIV>
<DIV>#include "vtkSmartPointer.h"</DIV>
<DIV>#include "vtkRenderer.h"</DIV>
<DIV>#include "vtkRenderWindow.h"</DIV>
<DIV>#include "vtkRenderWindowInteractor.h"</DIV>
<DIV>#include "vtkInteractorStyleTrackballCamera.h"</DIV>
<DIV>#include "vtkPolyDataMapper.h"</DIV>
<DIV>#include "vtkActor.h"</DIV>
<DIV>#include "vtkContourFilter.h"</DIV>
<DIV>#include "vtkSampleFunction.h"</DIV>
<DIV>#include "vtkPlane.h"</DIV>
<DIV>#include "vtkProperty.h"</DIV>
<DIV>#include "vtkTransformPolyDataFilter.h"</DIV>
<DIV>#include "vtkTransform.h"</DIV>
<DIV>#include "vtkOutlineFilter.h"</DIV>
<DIV>#include "vtkPlaneSource.h"</DIV>
<DIV> </DIV>
<DIV> </DIV>
<DIV>int main()</DIV>
<DIV>{</DIV>
<DIV> </DIV>
<DIV> </DIV>
<DIV> vtkSmartPointer<vtkRenderer> renderer =
vtkSmartPointer<vtkRenderer>::New();</DIV>
<DIV> </DIV>
<DIV> </DIV>
<DIV> vtkSmartPointer<vtkRenderWindow> renderWindow =
vtkSmartPointer<vtkRenderWindow>::New();</DIV>
<DIV> renderWindow->SetSize(640,480);</DIV>
<DIV> renderWindow->AddRenderer(renderer);</DIV>
<DIV> </DIV>
<DIV> </DIV>
<DIV> vtkSmartPointer<vtkRenderWindowInteractor>
renderInteractor =
vtkSmartPointer<vtkRenderWindowInteractor>::New();</DIV>
<DIV>
renderInteractor->SetRenderWindow(renderWindow);</DIV>
<DIV> </DIV>
<DIV> </DIV>
<DIV> vtkSmartPointer<
vtkInteractorStyleTrackballCamera> style =
vtkSmartPointer<vtkInteractorStyleTrackballCamera>::New();</DIV>
<DIV> renderInteractor->SetInteractorStyle(style);</DIV>
<DIV> </DIV>
<DIV> </DIV>
<DIV> vtkSmartPointer<vtkTransform> xform =
vtkSmartPointer<vtkTransform>::New();</DIV>
<DIV> xform->Identity();</DIV>
<DIV> xform->RotateX(20);</DIV>
<DIV> xform->RotateY(30);</DIV>
<DIV> </DIV>
<DIV> </DIV>
<DIV> </DIV>
<DIV> </DIV>
<DIV> </DIV>
<DIV> vtkSmartPointer<vtkPlane> plane =
vtkSmartPointer<vtkPlane>::New();</DIV>
<DIV> plane->SetNormal(1,0,0);</DIV>
<DIV> plane->SetTransform(xform);</DIV>
<DIV> </DIV>
<DIV> </DIV>
<DIV> // Sample the function</DIV>
<DIV> vtkSmartPointer<vtkSampleFunction> sample =
vtkSmartPointer<vtkSampleFunction>::New();</DIV>
<DIV> sample->SetSampleDimensions(10,10,10);</DIV>
<DIV> sample->SetImplicitFunction(plane);</DIV>
<DIV> double xmin = -0.5, xmax=0.5, ymin=-0.5, ymax=0.5,
zmin=-0.5, zmax=0.5;</DIV>
<DIV> sample->SetModelBounds(xmin, xmax, ymin, ymax, zmin,
zmax);</DIV>
<DIV> </DIV>
<DIV> </DIV>
<DIV> // Create the 0 isosurface</DIV>
<DIV> vtkSmartPointer<vtkContourFilter> contours
= vtkSmartPointer<vtkContourFilter>::New();</DIV>
<DIV>
contours->SetInputConnection(sample->GetOutputPort());</DIV>
<DIV> contours->SetValue(0,0);</DIV>
<DIV> contours->Update();</DIV>
<DIV> </DIV>
<DIV> </DIV>
<DIV> </DIV>
<DIV> vtkSmartPointer<vtkPolyDataMapper> mapperSample =
vtkSmartPointer<vtkPolyDataMapper>::New();</DIV>
<DIV>
mapperSample->SetInputConnection(contours->GetOutputPort());</DIV>
<DIV> </DIV>
<DIV> </DIV>
<DIV> vtkSmartPointer<vtkActor> actorSample =
vtkSmartPointer<vtkActor>::New();</DIV>
<DIV> actorSample->SetMapper(mapperSample);</DIV>
<DIV> </DIV>
<DIV> renderer->AddActor(actorSample);</DIV>
<DIV> </DIV>
<DIV> </DIV>
<DIV> vtkSmartPointer<vtkPlaneSource> planeSource =
vtkSmartPointer<vtkPlaneSource>::New();</DIV>
<DIV> planeSource->SetNormal(1,0,0);</DIV>
<DIV> </DIV>
<DIV> </DIV>
<DIV> vtkSmartPointer<vtkTransformPolyDataFilter>
xformFilter = </DIV>
<DIV>
vtkSmartPointer<vtkTransformPolyDataFilter>::New();</DIV>
<DIV>
xformFilter->SetInput(planeSource->GetOutput());</DIV>
<DIV> xformFilter->SetTransform(xform);</DIV>
<DIV> </DIV>
<DIV> </DIV>
<DIV> vtkSmartPointer<vtkPolyDataMapper> xformMapper=
vtkSmartPointer<vtkPolyDataMapper>::New();</DIV>
<DIV>
xformMapper->SetInput(xformFilter->GetOutput());</DIV>
<DIV> </DIV>
<DIV> </DIV>
<DIV> vtkSmartPointer<vtkActor> xformActor =
vtkSmartPointer<vtkActor>::New();</DIV>
<DIV> xformActor->SetMapper(xformMapper);</DIV>
<DIV> </DIV>
<DIV> </DIV>
<DIV> renderer->AddActor(xformActor);</DIV>
<DIV> </DIV>
<DIV> </DIV>
<DIV> // create outline</DIV>
<DIV> vtkSmartPointer<vtkOutlineFilter> outline =
vtkSmartPointer<vtkOutlineFilter>::New();</DIV>
<DIV>
outline->SetInputConnection(xformFilter->GetOutputPort());</DIV>
<DIV> </DIV>
<DIV> // map it to graphics primitives</DIV>
<DIV> vtkSmartPointer<vtkPolyDataMapper> outlineMapper =
vtkSmartPointer<vtkPolyDataMapper>::New();</DIV>
<DIV>
outlineMapper->SetInputConnection(outline->GetOutputPort());</DIV>
<DIV> </DIV>
<DIV> // create an actor for it</DIV>
<DIV> vtkSmartPointer<vtkActor> outlineActor =
vtkSmartPointer<vtkActor>::New();</DIV>
<DIV> outlineActor->SetMapper(outlineMapper);</DIV>
<DIV>
outlineActor->GetProperty()->SetColor(0,0,0);</DIV>
<DIV> </DIV>
<DIV> </DIV>
<DIV> renderer->AddActor(outlineActor);</DIV>
<DIV> </DIV>
<DIV> </DIV>
<DIV> </DIV>
<DIV> renderer->SetBackground(.1,.2,.3);
</DIV>
<DIV> renderer->ResetCamera();</DIV>
<DIV> renderWindow->Render();</DIV>
<DIV> </DIV>
<DIV> </DIV>
<DIV> renderInteractor->Start();</DIV>
<DIV> </DIV>
<DIV> </DIV>
<DIV> return EXIT_SUCCESS;</DIV>
<DIV>}</DIV></DIV>
<DIV>
<DIV
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