[vtkusers] Changing Cell Color After picking

[Ricardo Seco VTK]

Could you please be more specific?

Thanks
Ricardo Seco
Dominik Szczerba escreveu:
> 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
>>     
>
>