cxMeshHelpers.cpp

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/*=========================================================================
This file is part of CustusX, an Image Guided Therapy Application.

Copyright (c) 2008-2014, SINTEF Department of Medical Technology
All rights reserved.

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   this list of conditions and the following disclaimer.

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   and/or other materials provided with the distribution.

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   may be used to endorse or promote products derived from this software 
   without specific prior written permission.

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AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 
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#include "cxMeshHelpers.h"

#include <QColor>

#include <vtkPoints.h>
#include <vtkCellArray.h>

#include "cxPatientModelService.h"
#include "cxMesh.h"
#include "cxTypeConversions.h"
#include "cxTime.h"

namespace cx
{
vtkPolyDataPtr polydataFromTransforms(TimedTransformMap transformMap_prMt, Transform3D rMpr)
{
  vtkPolyDataPtr retval = vtkPolyDataPtr::New();

  vtkPointsPtr points = vtkPointsPtr::New();
  vtkCellArrayPtr lines = vtkCellArrayPtr::New();

  points->Allocate(transformMap_prMt.size());

  TimedTransformMap::iterator mapIter = transformMap_prMt.begin();
  while(mapIter != transformMap_prMt.end())
  {
    Vector3D point_t = Vector3D(0,0,0);

    Transform3D prMt = mapIter->second;
    Transform3D rMt = rMpr * prMt;
    Vector3D p = rMt.coord(point_t);
    points->InsertNextPoint(p.begin());

                ++mapIter;
  }

  lines->Initialize();
  std::vector<vtkIdType> ids(points->GetNumberOfPoints());
  for (unsigned i=0; i<ids.size(); ++i)
    ids[i] = i;
  lines->InsertNextCell(ids.size(), &(*ids.begin()));

  retval->SetPoints(points);
  retval->SetLines(lines);
  return retval;
}

void loadMeshFromToolTransforms(PatientModelServicePtr dataManager, TimedTransformMap transforms_prMt)
{
  //create polydata from positions
        Transform3D rMpr = dataManager->get_rMpr();
  vtkPolyDataPtr centerlinePolydata = polydataFromTransforms(transforms_prMt, rMpr);
  QString uid = "tool_positions_mesh_%1";
  QString name = "Tool positions mesh %1";
  MeshPtr mesh = dataManager->createSpecificData<Mesh>(uid, name);
  mesh->setVtkPolyData(centerlinePolydata);
  mesh->setColor(QColor("red"));
  dataManager->insertData(mesh);
}

std::map<std::string, std::string> getDisplayFriendlyInfo(MeshPtr mesh)
{
        std::map<std::string, std::string> retval;
        if(!mesh)
                return retval;

        //mesh
        retval["Filename"] = mesh->getFilename().toStdString();
        retval["Coordinate system"] = mesh->getCoordinateSystem().toString().toStdString();
        retval["Name"] = mesh->getName().toStdString();
        retval["Parent space"] = mesh->getParentSpace().toStdString();
        retval["Space"] = mesh->getSpace().toStdString();
        retval["Type"] = mesh->getType().toStdString();
        retval["Uid"] = mesh->getUid().toStdString();
        retval["rMd"] = string_cast(mesh->get_rMd());
        retval["Backface culling"] = string_cast(mesh->getBackfaceCulling());
        retval["Color"] = mesh->getColor().name().toStdString();
        retval["Frontface culling"] = string_cast(mesh->getFrontfaceCulling());
        retval["Is wireframe"] = string_cast(mesh->getIsWireframe());
        retval["Acquisition time"] = string_cast(mesh->getAcquisitionTime().toString(timestampSecondsFormatNice()));
        retval["Fiber bundle"] = string_cast(mesh->isFiberBundle());

        //vtkPolyData
        float actualMemorySizeKB = (float)mesh->getVtkPolyData()->GetActualMemorySize();
        retval["Actual memory size"] = string_cast(actualMemorySizeKB/(1024*1024))+" GB, "+string_cast(actualMemorySizeKB/1024)+" MB, "+string_cast(actualMemorySizeKB)+" kB";
        retval["Points"] = string_cast(mesh->getVtkPolyData()->GetNumberOfPoints());
        retval["Lines"] = string_cast(mesh->getVtkPolyData()->GetNumberOfLines());
        retval["Pieces"] = string_cast(mesh->getVtkPolyData()->GetNumberOfPieces());
        retval["Polys"] = string_cast(mesh->getVtkPolyData()->GetNumberOfPolys());
        retval["Strips"] = string_cast(mesh->getVtkPolyData()->GetNumberOfStrips());
        retval["Verts"] = string_cast(mesh->getVtkPolyData()->GetNumberOfVerts());

        return retval;
}

}//namespace cx