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InteractorStyle.cxx
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InteractorStyle.cxx
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/*=========================================================================
*
* Copyright David Doria 2011 daviddoria@gmail.com
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0.txt
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
*=========================================================================*/
#include "InteractorStyle.h"
#include <vtkObjectFactory.h>
#include <vtkLine.h>
#include <vtkCellArray.h>
#include <vtkRendererCollection.h>
#include <vtkRenderWindow.h>
#include <vtkRenderWindowInteractor.h>
vtkStandardNewMacro(InteractorStyle);
InteractorStyle::InteractorStyle()
{
PreviousId = -1;
}
void InteractorStyle::OnLeftButtonDown()
{
// Forward events
vtkInteractorStyleTrackballActor::OnLeftButtonDown();
int selectedId = -1;
for(unsigned int i = 0; i < this->Points->size(); ++i)
{
if(this->InteractionProp == this->Points->at(i).GetPointer())
{
//std::cout << "Point " << i << " was selected." << std::endl;
selectedId = i;
break;
}
}
if(selectedId == -1)
{
return;
}
if(this->PreviousId == -1)
{
this->PreviousId = selectedId;
return;
}
//std::cout << "Previous: " << this->PreviousId << " Current: " << selectedId << std::endl;
// At this point, we should have two valid points to connect
vtkSmartPointer<vtkLine> line =
vtkSmartPointer<vtkLine>::New();
line->GetPointIds()->SetId(0,this->PreviousId);
line->GetPointIds()->SetId(1,selectedId);
this->Contour->GetLines()->InsertNextCell(line);
this->Contour->Modified();
//this->Interactor->GetRenderWindow()->GetRenderers()->Render();
this->Interactor->GetRenderWindow()->GetRenderers()->GetFirstRenderer()->Render();
this->Interactor->GetRenderWindow()->Render();
std::cout << "There are now " << this->Contour->GetNumberOfLines() << " lines." << std::endl;
this->PreviousId = selectedId;
}
void InteractorStyle::OnLeftButtonUp()
{
// Forward events
vtkInteractorStyleTrackballActor::OnLeftButtonUp();
}
//void SetPoints(std::vector<vtkActor*> points) {this->Points = points;}
void InteractorStyle::SetPoints(std::vector<vtkSmartPointer<vtkActor> >* points)
{
this->Points = points;
}
void InteractorStyle::SetContour(vtkSmartPointer<vtkPolyData> contour)
{
this->Contour = contour;
}