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/*=========================================================================
Program: Visualization Toolkit
Module: ArrayAPIDense.cxx
-------------------------------------------------------------------------
Copyright 2008 Sandia Corporation.
Under the terms of Contract DE-AC04-94AL85000 with Sandia Corporation,
the U.S. Government retains certain rights in this software.
-------------------------------------------------------------------------
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 <vtkDenseArray.h>
#include <vtkSmartPointer.h>
#include <iostream>
#include <sstream>
#include <stdexcept>
#define test_expression(expression) \
{ \
if(!(expression)) \
{ \
std::ostringstream buffer; \
buffer << "Expression failed at line " << __LINE__ << ": " << #expression; \
throw std::runtime_error(buffer.str()); \
} \
}
int TestArrayAPIDense(int vtkNotUsed(argc), char *vtkNotUsed(argv)[])
{
try
{
// Create an array ...
vtkSmartPointer<vtkDenseArray<double> > array = vtkSmartPointer<vtkDenseArray<double> >::New();
array->Resize(vtkArrayExtents::Uniform(3, 0));
test_expression(array);
// Test to ensure that casting works correctly ...
test_expression(vtkTypedArray<double>::SafeDownCast(array));
test_expression(vtkArray::SafeDownCast(array));
test_expression(vtkObject::SafeDownCast(array));
test_expression(!vtkTypedArray<int>::SafeDownCast(array));
// Confirm the initial state of the array ...
test_expression(array->GetDimensions() == 3);
test_expression(array->GetSize() == 0);
test_expression(array->GetNonNullSize() == 0);
test_expression(array->GetExtents() == vtkArrayExtents(0, 0, 0));
// Resize the array and verify that everything adds-up ...
array->Resize(vtkArrayExtents(1, 2, 3));
array->Print(std::cout);
test_expression(array->GetDimensions() == 3);
test_expression(array->GetSize() == 6);
test_expression(array->GetNonNullSize() == 6);
test_expression(array->GetExtents() == vtkArrayExtents(1, 2, 3));
// Initialize the array to zero and verify that the array contains all zeros ...
{
array->Fill(0.0);
const vtkArrayExtents extents = array->GetExtents();
for(vtkIdType i = extents[0].GetBegin(); i != extents[0].GetEnd(); ++i)
{
for(vtkIdType j = extents[1].GetBegin(); j != extents[1].GetEnd(); ++j)
{
for(vtkIdType k = extents[2].GetBegin(); k != extents[2].GetEnd(); ++k)
{
test_expression(array->GetValue(vtkArrayCoordinates(i, j, k)) == 0.0);
}
}
}
}
// Verify that we can write data into the array and read it out again ...
{
double value = 0;
const vtkArrayExtents extents = array->GetExtents();
for(vtkIdType i = extents[0].GetBegin(); i != extents[0].GetEnd(); ++i)
{
for(vtkIdType j = extents[1].GetBegin(); j != extents[1].GetEnd(); ++j)
{
for(vtkIdType k = extents[2].GetBegin(); k != extents[2].GetEnd(); ++k)
{
array->SetValue(vtkArrayCoordinates(i, j, k), value++);
}
}
}
}
{
double value = 0;
vtkIdType index = 0;
const vtkArrayExtents extents = array->GetExtents();
for(vtkIdType i = extents[0].GetBegin(); i != extents[0].GetEnd(); ++i)
{
for(vtkIdType j = extents[1].GetBegin(); j != extents[1].GetEnd(); ++j)
{
for(vtkIdType k = extents[2].GetBegin(); k != extents[2].GetEnd(); ++k)
{
test_expression(array->GetValue(vtkArrayCoordinates(i, j, k)) == value);
vtkArrayCoordinates coordinates;
array->GetCoordinatesN(index, coordinates);
++index;
++value;
}
}
}
}
// Verify that fill works correctly ...
array->Fill(19700827);
// Test unordered access ...
for(vtkArray::SizeT n = 0; n != array->GetNonNullSize(); ++n)
test_expression(array->GetValueN(n) == 19700827);
// Verify that deep-copy works correctly ...
vtkSmartPointer<vtkDenseArray<double> > deep_copy;
deep_copy.TakeReference(vtkDenseArray<double>::SafeDownCast(array->DeepCopy()));
test_expression(deep_copy->GetDimensions() == array->GetDimensions());
test_expression(deep_copy->GetSize() == array->GetSize());
test_expression(deep_copy->GetNonNullSize() == array->GetNonNullSize());
test_expression(deep_copy->GetExtents() == array->GetExtents());
for(vtkArray::SizeT n = 0; n != deep_copy->GetNonNullSize(); ++n)
test_expression(deep_copy->GetValueN(n) == 19700827);
// Verify that data is organized in fortran-order ...
array->SetValue(vtkArrayCoordinates(0, 0, 0), 2);
array->SetValue(vtkArrayCoordinates(1, 0, 0), 4);
array->SetValue(vtkArrayCoordinates(2, 0, 0), 6);
test_expression(array->GetStorage()[0] == 2);
test_expression(array->GetStorage()[1] == 4);
test_expression(array->GetStorage()[2] == 6);
// Verify that external storage works correctly ...
double a[] = { 7, 8, 9 };
double b[] = { 5, 6, 7, 8 };
array->ExternalStorage(vtkArrayExtents(3), new vtkDenseArray<double>::StaticMemoryBlock(a));
test_expression(array->GetValue(0) == 7);
test_expression(array->GetValue(2) == 9);
array->ExternalStorage(vtkArrayExtents(2, 2), new vtkDenseArray<double>::StaticMemoryBlock(b));
test_expression(array->GetValue(0, 0) == 5);
test_expression(array->GetValue(1, 0) == 6);
return 0;
}
catch(std::exception& e)
{
cerr << e.what() << endl;
return 1;
}
}
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