[vtkusers] Changing Cell Color After picking

[Dominik Szczerba]

enable coloring the dataset with a scalar, set the right one
--ds

Ricardo Seco VTK wrote:
> Still no results :(
> 
> Ricardo Seco
> 
> class vtkMyCallback : public vtkCommand
> {
> public:
>        vtkMyCallback::vtkMyCallback() { m_pvtkActorSelection = NULL; };
>        static vtkMyCallback *New() { return new vtkMyCallback; }
>        void SetSelectionActor(vtkActor* pvtkActorSelection) {
> m_pvtkActorSelection = pvtkActorSelection; };
>        void SetSelectionList(vtkIdList* pvtkIdDeletion) {
> m_pvtkIdDeletion = pvtkIdDeletion; };
>        void SetSelectionDataSet(vtkPolyData* pvtkDataSet) {
> m_pvtkDataSet = pvtkDataSet; };
>        void SetIren(vtkRenderWindowInteractor* pvtkIren) { m_pvtkIren =
> pvtkIren; };
>        void SetSelectionMapper(vtkPolyDataMapper* pvtkDataMapper) {
> m_pvtkDataMapper = pvtkDataMapper; };
>        virtual void Execute(vtkObject *caller, unsigned long, void*)
>        {
>                double coords[3];
>                int pId;
>                float ptr;
>                vtkCellPicker *picker = (vtkCellPicker
> *)m_pvtkIren->GetPicker();
>                picker->GetPickPosition(coords);
>                // Obter o Id da cell que acabamos de fazer pickin
>                pId = picker->GetCellId();
>               
> m_pvtkDataSet->GetPointData()->GetScalars()->SetTuple1(pId,0);
> ------------------------------------------------------------
>               
> m_pvtkDataSet->Update();------------------------------------------------------------------------------------------------------
> 
>               
> m_pvtkDataMapper->SetInput(m_pvtkDataSet);--------------------------------------------------------------------------------
> 
>                              printf("Cell ID a remover: %d \n",pId);
>                // Inserção da cell na vtkIdList
>                m_pvtkIdDeletion->InsertNextId(pId);
>                // Caso a cell já esteja na vtkIdList ou seja NULL(-1)
>                for(int k=0; k<m_pvtkIdDeletion->GetNumberOfIds(); k++)
>                {
>                    if ((pId) == (m_pvtkIdDeletion->GetId(k)) && (k!=0))
>                    {
>                        m_pvtkIdDeletion->DeleteId(pId);
>                        m_pvtkIdDeletion->InsertNextId(pId);
>                    }
>                    if ((pId) == -1)
>                        m_pvtkIdDeletion->DeleteId(pId);
>                }
>               
> printf("-------------------------------------------------------------------------\n");
> 
>                printf("Numero de Cells para
> remocao:%d\n",m_pvtkIdDeletion->GetNumberOfIds());
>                printf("Lista de Cells para remocao:\n");
>                for(int k=0; k<m_pvtkIdDeletion->GetNumberOfIds(); k++)
>                    printf("Pos:%d
> CellId:%d\n",k,m_pvtkIdDeletion->GetId(k));
>                // Renderizar a nossa esfera de picking para a cell
> seleccionada
>                if (picker->GetCellId() != -1)
>                {
>                      if (m_pvtkActorSelection)         
>                          m_pvtkActorSelection->SetPosition(coords);
>                }
>                m_pvtkIren->Render();
>               
> //m_pvtkDataSet->GetPointData()->GetScalars()->SetTuple1(pId,1);
>        }
> private:
>        vtkActor* m_pvtkActorSelection;
>        vtkIdList* m_pvtkIdDeletion;
>        vtkPolyData* m_pvtkDataSet;
>        vtkRenderWindowInteractor* m_pvtkIren;
>        vtkPolyDataMapper* m_pvtkDataMapper;
> };
> 
> 
> 
> Dominik Szczerba escreveu:
>> you may need to set/update the range in the mapper
>> --ds
>>
>> Ricardo Seco VTK wrote:
>>  
>>> well i did after setting the tuple the update of my polydata object and
>>> nothing....
>>> any more sugestions?
>>>
>>> Ricardo Seco
>>>
>>> Dominik Szczerba escreveu:
>>>    
>>>> well you have to Update() something
>>>> --DS
>>>>
>>>> Ricardo Seco VTK wrote:
>>>>  
>>>>      
>>>>> Hello. I am trying to change the color of the cell after picking but
>>>>> nothing happens...
>>>>> Could someone help me?
>>>>>
>>>>> Best Regards
>>>>> Ricardo Seco
>>>>>
>>>>> class vtkMyCallback : public vtkCommand
>>>>> {
>>>>> public:
>>>>>        vtkMyCallback::vtkMyCallback() { m_pvtkActorSelection =
>>>>> NULL; };
>>>>>        static vtkMyCallback *New() { return new vtkMyCallback; }
>>>>>        void SetSelectionActor(vtkActor* pvtkActorSelection) {
>>>>> m_pvtkActorSelection = pvtkActorSelection; };
>>>>>        void SetSelectionList(vtkIdList* pvtkIdDeletion) {
>>>>> m_pvtkIdDeletion = pvtkIdDeletion; };
>>>>>        void SetSelectionDataSet(vtkPolyData* pvtkDataSet) {
>>>>> m_pvtkDataSet = pvtkDataSet; };
>>>>>        void SetIren(vtkRenderWindowInteractor* pvtkIren) {
>>>>> m_pvtkIren =
>>>>> pvtkIren; };
>>>>>        virtual void Execute(vtkObject *caller, unsigned long, void*)
>>>>>        {
>>>>>                double coords[3];
>>>>>                int pId;
>>>>>                float ptr;
>>>>>                vtkCellPicker *picker = (vtkCellPicker
>>>>> *)m_pvtkIren->GetPicker();
>>>>>                picker->GetPickPosition(coords);
>>>>>                // Obter o Id da cell que acabamos de fazer pickin
>>>>>                pId = picker->GetCellId();
>>>>>             
>>>>> m_pvtkDataSet->GetPointData()->GetScalars()->SetTuple1(pId,0);--------------------------------------------------
>>>>>
>>>>>
>>>>> HERE
>>>>>                              printf("Cell ID a remover: %d \n",pId);
>>>>>                // Inserção da cell na vtkIdList
>>>>>                m_pvtkIdDeletion->InsertNextId(pId);
>>>>>                // Caso a cell já esteja na vtkIdList ou seja NULL(-1)
>>>>>                for(int k=0; k<m_pvtkIdDeletion->GetNumberOfIds(); k++)
>>>>>                {
>>>>>                    if ((pId) == (m_pvtkIdDeletion->GetId(k)) &&
>>>>> (k!=0))
>>>>>                    {
>>>>>                        m_pvtkIdDeletion->DeleteId(pId);
>>>>>                        m_pvtkIdDeletion->InsertNextId(pId);
>>>>>                    }
>>>>>                    if ((pId) == -1)
>>>>>                        m_pvtkIdDeletion->DeleteId(pId);
>>>>>                }
>>>>>             
>>>>> printf("-------------------------------------------------------------------------\n");
>>>>>
>>>>>
>>>>>
>>>>>                printf("Numero de Cells para
>>>>> remocao:%d\n",m_pvtkIdDeletion->GetNumberOfIds());
>>>>>                printf("Lista de Cells para remocao:\n");
>>>>>                for(int k=0; k<m_pvtkIdDeletion->GetNumberOfIds(); k++)
>>>>>                    printf("Pos:%d
>>>>> CellId:%d\n",k,m_pvtkIdDeletion->GetId(k));
>>>>>                // Renderizar a nossa esfera de picking para a cell
>>>>> seleccionada
>>>>>                if (picker->GetCellId() != -1)
>>>>>                {
>>>>>                      if (m_pvtkActorSelection)       
>>>>>                          m_pvtkActorSelection->SetPosition(coords);
>>>>>                }
>>>>>                m_pvtkIren->Render();
>>>>>             
>>>>> m_pvtkDataSet->GetPointData()->GetScalars()->SetTuple1(pId,1);
>>>>>        }
>>>>> private:
>>>>>        vtkActor* m_pvtkActorSelection;
>>>>>        vtkIdList* m_pvtkIdDeletion;
>>>>>        vtkPolyData* m_pvtkDataSet;
>>>>>        vtkRenderWindowInteractor* m_pvtkIren;
>>>>> };
>>>>> _______________________________________________
>>>>> This is the private VTK discussion list. Please keep messages
>>>>> on-topic.
>>>>> Check the FAQ at: http://www.vtk.org/Wiki/VTK_FAQ
>>>>> Follow this link to subscribe/unsubscribe:
>>>>> http://www.vtk.org/mailman/listinfo/vtkusers
>>>>>             
>>>>         
>>> _______________________________________________
>>> This is the private VTK discussion list. Please keep messages on-topic.
>>> Check the FAQ at: http://www.vtk.org/Wiki/VTK_FAQ
>>> Follow this link to subscribe/unsubscribe:
>>> http://www.vtk.org/mailman/listinfo/vtkusers
>>>     
>>
>>   
> 
> _______________________________________________
> This is the private VTK discussion list. Please keep messages on-topic.
> Check the FAQ at: http://www.vtk.org/Wiki/VTK_FAQ
> Follow this link to subscribe/unsubscribe:
> http://www.vtk.org/mailman/listinfo/vtkusers