vtkmPointTransform.cxx 5.73 KB
Newer Older
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177
/*=========================================================================

  Program:   Visualization Toolkit
  Module:    vtkTransformFilter.cxx

  Copyright (c) Ken Martin, Will Schroeder, Bill Lorensen
  All rights reserved.
  See Copyright.txt or http://www.kitware.com/Copyright.htm for details.

     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 "vtkmPointTransform.h"

#include "vtkCellData.h"
#include "vtkHomogeneousTransform.h"
#include "vtkImageData.h"
#include "vtkInformationVector.h"
#include "vtkInformation.h"
#include "vtkObjectFactory.h"
#include "vtkMatrix4x4.h"
#include "vtkNew.h"
#include "vtkPointData.h"
#include "vtkRectilinearGrid.h"
#include "vtkRectilinearGridToPointSet.h"
#include "vtkSmartPointer.h"
#include "vtkStructuredGrid.h"


#include "vtkmlib/ArrayConverters.h"
#include "vtkmlib/DataSetConverters.h"
#include "vtkmlib/Storage.h"

#include "vtkm/cont/Error.h"
#include "vtkm/cont/Error.h"
#include "vtkm/filter/PointTransform.h"

#include "vtkmFilterPolicy.h"

vtkStandardNewMacro(vtkmPointTransform);
vtkCxxSetObjectMacro(vtkmPointTransform,Transform,vtkHomogeneousTransform);

//------------------------------------------------------------------------------
vtkmPointTransform::vtkmPointTransform()
{
  this->Transform = nullptr;
}

//------------------------------------------------------------------------------
vtkmPointTransform::~vtkmPointTransform()
{
  this->SetTransform(nullptr);
}

//------------------------------------------------------------------------------
int vtkmPointTransform::FillInputPortInformation(int vtkNotUsed(port),
                                                 vtkInformation* info)
{
  info->Remove(vtkAlgorithm::INPUT_REQUIRED_DATA_TYPE());
  info->Append(vtkAlgorithm::INPUT_REQUIRED_DATA_TYPE(), "vtkPointSet");
  info->Append(vtkAlgorithm::INPUT_REQUIRED_DATA_TYPE(), "vtkImageData");
  info->Append(vtkAlgorithm::INPUT_REQUIRED_DATA_TYPE(), "vtkRectilinearGrid");
  return 1;
}

//------------------------------------------------------------------------------
int vtkmPointTransform::RequestDataObject(vtkInformation* request,
                                          vtkInformationVector** inputVector,
                                          vtkInformationVector* outputVector)
{
  vtkImageData* inImage = vtkImageData::GetData(inputVector[0]);
  vtkRectilinearGrid* inRect = vtkRectilinearGrid::GetData(inputVector[0]);

  if (inImage || inRect)
  {
    vtkStructuredGrid* output = vtkStructuredGrid::GetData(outputVector);
    if (!output)
    {
      vtkNew<vtkStructuredGrid> newOutput;
      outputVector->GetInformationObject(0)->Set(
            vtkDataObject::DATA_OBJECT(), newOutput);
    }
    return 1;
  }
  else
  {
    return this->Superclass::RequestDataObject(request, inputVector,  outputVector);
  }
}

//------------------------------------------------------------------------------
int vtkmPointTransform::RequestData(vtkInformation* vtkNotUsed(request),
                                    vtkInformationVector **inputVector,
                                    vtkInformationVector *outputVector)
{
  vtkSmartPointer<vtkPointSet> input = vtkPointSet::GetData(inputVector[0]);
  vtkSmartPointer<vtkPointSet> output = vtkPointSet::GetData(outputVector);

  if (!input)
  {
    // Try converting rectilinear grid
    vtkRectilinearGrid* inRect = vtkRectilinearGrid::GetData(inputVector[0]);
    if (inRect)
    {
      vtkNew<vtkRectilinearGridToPointSet> rectToPoints;
      rectToPoints->SetInputData(inRect);
      rectToPoints->Update();
      input = rectToPoints->GetOutput();
    }
  }
  if (!input)
  {
    vtkErrorMacro(<< "Invalid or missing input");
    return 0;
  }

  output->CopyStructure(input);

  vtkPoints* inPts = input->GetPoints();

  if (!inPts || !this->Transform)
  {
    vtkDebugMacro(<< "Miss input points or transform matrix");
    return 0;
  }

  try
  {
    vtkm::cont::DataSet in = tovtkm::Convert(input, tovtkm::FieldsFlag::PointsAndCells);
    vtkMatrix4x4* matrix = this->Transform->GetMatrix();
    vtkm::Matrix<vtkm::FloatDefault, 4, 4> vtkmMatrix;
    for (int i = 0; i < 4; i++)
    {
      for(int j = 0;j < 4; j++)
      {
        vtkmMatrix[i][j] = static_cast<vtkm::FloatDefault>(matrix->GetElement(i, j));
      }
    }

    vtkm::filter::PointTransform<vtkm::FloatDefault> pointTransform;
    pointTransform.SetUseCoordinateSystemAsField(true);
    pointTransform.SetTransform(vtkmMatrix);

    vtkmInputFilterPolicy policy;
    auto result = pointTransform.Execute(in, policy);
    vtkDataArray* pointTransformResult = fromvtkm::Convert(result.GetField("transform",
                  vtkm::cont::Field::Association::POINTS));
    vtkPoints* newPts = vtkPoints::New();
    // Update points
    newPts->SetNumberOfPoints(pointTransformResult->GetNumberOfTuples());
    newPts->SetData(pointTransformResult);
    output->SetPoints(newPts);
    newPts->Delete();
    pointTransformResult->FastDelete();
  }
  catch(const vtkm::cont::Error& e)
  {
    vtkErrorMacro(<< "VTK-m error: " << e.GetMessage());
  }

  // Update ourselves and release memory
  output->GetPointData()->CopyNormalsOff(); // distorted geometry
  output->GetPointData()->PassData(input->GetPointData());
  output->GetCellData()->CopyNormalsOff(); // distorted geometry
  output->GetCellData()->PassData(input->GetCellData());

  return 1;
}

//------------------------------------------------------------------------------
void vtkmPointTransform::PrintSelf(std::ostream& os, vtkIndent indent)
{
  this->Superclass::PrintSelf(os, indent);
  os << indent << "Transform: " << this->Transform << "\n";
}