[vtkusers] Changing Cell Color After picking

[Ricardo Seco VTK]

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
>>     
>
>