wxMaracasMultipleVolumeRendererManager.cxx

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/*=========================================================================

  Program:   wxMaracas
  Module:    $RCSfile: wxMaracasMultipleVolumeRendererManager.cxx,v $
  Language:  C++
  Date:      $Date: 2009/07/20 10:06:12 $
  Version:   $Revision: 1.3 $

  Copyright: (c) 2002, 2003
  License:

     This software is distributed WITHOUT ANY WARRANTY; without even
     the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
     PURPOSE.  See the above copyright notice for more information.

=========================================================================*/
#include "wxMaracasMultipleVolumeRendererManager.h"

#include <vtkMetaImageReader.h>
#include <vtkImageCast.h>
wxMaracasMultipleVolumeRendererManager::wxMaracasMultipleVolumeRendererManager(){
        _renderer = NULL;
        _idCount=0;
}
wxMaracasMultipleVolumeRendererManager::~wxMaracasMultipleVolumeRendererManager(){
}

void wxMaracasMultipleVolumeRendererManager::setRenderer(vtkRenderer*  renderer){
        _renderer = renderer;
}
int wxMaracasMultipleVolumeRendererManager::addVolume(vtkImageData* vol, std::string dataname)  throw(char*){
        checkInvariant();
        if(vol != NULL){
                wxMaracasMultipleVolumeRendererManagerData* data = new wxMaracasMultipleVolumeRendererManagerData(vol, dataname);
                prop3Dvect.push_back(data);             
                _renderer->AddActor(data->getProp3D());
                data->setId(_idCount);
                _idCount++;
                return data->getId();
        }else{
                throw "Check mhd imagefile file or input";
        }
        return -1;
}
void wxMaracasMultipleVolumeRendererManager::addRemoveActor(int propid, bool addremove)  throw(char*){
        checkInvariant();
        
        wxMaracasMultipleVolumeRendererManagerData* data = this->getViewData(propid);           
        if(data->getProp3D()!=NULL){
                if(addremove){
                        _renderer->AddViewProp(data->getProp3D());
                }else{
                        _renderer->RemoveViewProp(data->getProp3D());
                }
                _renderer->Render();
        }
        
}
void wxMaracasMultipleVolumeRendererManager::setVolumeOpacity(int propid, std::vector<double> greylevel,std::vector<double> value)  throw(char*){
        checkInvariant();               

        this->getViewData(propid)->setVolumeOpacity(greylevel, value);
        
        _renderer->Render();

}

void wxMaracasMultipleVolumeRendererManager::setVolumeColor(int volid, std::vector<double> greylevel,
                                                                std::vector<double> red,
                                                                std::vector<double> green,
                                                                std::vector<double> blue)
{
        checkInvariant();               

        this->getViewData(volid)->setVolumeColor(greylevel, red, green, blue);
        
        _renderer->Render();
}

vtkImageData* wxMaracasMultipleVolumeRendererManager::getImageData(std::string filename){
        if(filename.compare("")!= 0){   
                
                vtkMetaImageReader* reader =  vtkMetaImageReader::New();        
                reader->SetFileName(filename.c_str());
                reader->Update();
                vtkImageData* img = reader->GetOutput();        

                vtkImageCast* cast = vtkImageCast::New(); 
                cast->SetInput(img);
                cast->SetOutputScalarTypeToUnsignedShort();
                cast->Update();                 
                //reader->Delete();
                //img->Delete();
                return cast->GetOutput();
                //return img;
        }       
        return NULL;
}

void wxMaracasMultipleVolumeRendererManager::checkInvariant()  throw(char*){
        if(this->_renderer==NULL){
                throw "Renderer not set";
        }
}

wxMaracasMultipleVolumeRendererManagerData* wxMaracasMultipleVolumeRendererManager::getViewData(int id) throw(char*){
    int i;
        for(i = 0; i < (int)(prop3Dvect.size());i++){
                if(prop3Dvect[i]->getId() == id){
                        return prop3Dvect[i];
                }
        }
        throw "id not found in the data";

        return NULL;
}

void wxMaracasMultipleVolumeRendererManager::deleteActor(int propid) throw (char *){
        checkInvariant();       

        this->addRemoveActor(propid, false);

        int i,n;
        bool exit = false;
        for(i = 0; i < (int)(prop3Dvect.size())&&!exit;i++){
                if(prop3Dvect[i]->getId() == propid){                   
                        n=i;
                        exit = true;
                }
        }
        if(exit){
                wxMaracasMultipleVolumeRendererManagerData* data = prop3Dvect[n];                       
                int j;
                for(j = i; j < (int)(prop3Dvect.size())-1;j++){
                        prop3Dvect[j] = prop3Dvect[j+1];
                }               
                delete data;
                prop3Dvect.pop_back();
        }else{
                throw "id not found in the data";
        }       
    
}

vtkPiecewiseFunction* wxMaracasMultipleVolumeRendererManager::GetTransferFunction(int volumeid){
        return getViewData(volumeid)->GetTransferFunction();
}
vtkColorTransferFunction* wxMaracasMultipleVolumeRendererManager::GetColorFunction(int volumeid){

        return getViewData(volumeid)->GetColorFunction();
}

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