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// SPDX-FileCopyrightText: Copyright (c) Ken Martin, Will Schroeder, Bill Lorensen
// SPDX-FileCopyrightText: Copyright 2008 Sandia Corporation
// SPDX-License-Identifier: LicenseRef-BSD-3-Clause-Sandia-USGov
#include <vtkDenseArray.h>
#include <vtkSmartPointer.h>
#include <vtkSparseArray.h>
#include <vtkTryDowncast.h>
#include <iostream>
#include <sstream>
#include <stdexcept>
#include <boost/algorithm/string.hpp>
#define VTK_CREATE(type, name) vtkSmartPointer<type> name = vtkSmartPointer<type>::New()
#define test_expression(expression) \
{ \
if (!(expression)) \
{ \
std::ostringstream buffer; \
buffer << "Expression failed at line " << __LINE__ << ": " << #expression; \
throw std::runtime_error(buffer.str()); \
} \
}
class DowncastTest
{
public:
DowncastTest(int& count)
: Count(count)
{
}
template <typename T>
void operator()(T* vtkNotUsed(array)) const
{
++Count;
}
int& Count;
private:
DowncastTest& operator=(const DowncastTest&);
};
template <template <typename> class TargetT, typename TypesT>
void SuccessTest(vtkObject* source, int line)
{
int count = 0;
if (!vtkTryDowncast<TargetT, TypesT>(source, DowncastTest(count)))
{
std::ostringstream buffer;
buffer << "Expression failed at line " << line;
throw std::runtime_error(buffer.str());
}
if (count != 1)
{
std::ostringstream buffer;
buffer << "Functor was called " << count << " times at line " << line;
throw std::runtime_error(buffer.str());
}
}
template <template <typename> class TargetT, typename TypesT>
void FailTest(vtkObject* source, int line)
{
int count = 0;
if (vtkTryDowncast<TargetT, TypesT>(source, DowncastTest(count)))
{
std::ostringstream buffer;
buffer << "Expression failed at line " << line;
throw std::runtime_error(buffer.str());
}
if (count != 0)
{
std::ostringstream buffer;
buffer << "Functor was called " << count << " times at line " << line;
throw std::runtime_error(buffer.str());
}
}
/*
// This functor increments array values in-place using a parameter passed via the algorithm (instead
of a parameter
// stored in the functor). It can work with any numeric array type.
struct IncrementValues
{
template<typename T>
void operator()(T* array, int amount) const
{
for(vtkIdType n = 0; n != array->GetNonNullSize(); ++n)
array->SetValueN(n, array->GetValueN(n) + amount);
}
};
// This functor efficiently creates a transposed array. It's one example of how you can create an
output array
// with the same type as an input array.
struct Transpose
{
Transpose(vtkSmartPointer<vtkArray>& result_matrix) : ResultMatrix(result_matrix) {}
template<typename ValueT>
void operator()(vtkDenseArray<ValueT>* input) const
{
if(input->GetDimensions() != 2 || input->GetExtents()[0] != input->GetExtents()[1])
throw std::runtime_error("A square matrix is required.");
vtkDenseArray<ValueT>* output = vtkDenseArray<ValueT>::SafeDownCast(input->DeepCopy());
for(vtkIdType i = 0; i != input->GetExtents()[0]; ++i)
{
for(vtkIdType j = i + 1; j != input->GetExtents()[1]; ++j)
{
output->SetValue(i, j, input->GetValue(j, i));
output->SetValue(j, i, input->GetValue(i, j));
}
}
this->ResultMatrix = output;
}
vtkSmartPointer<vtkArray>& ResultMatrix;
};
*/
//
//
// Here are some examples of how the algorithm might be called.
//
//
int TestArrayCasting(int vtkNotUsed(argc), char* vtkNotUsed(argv)[])
{
try
{
VTK_CREATE(vtkDenseArray<int>, dense_int);
VTK_CREATE(vtkDenseArray<double>, dense_double);
VTK_CREATE(vtkDenseArray<vtkStdString>, dense_string);
VTK_CREATE(vtkSparseArray<int>, sparse_int);
VTK_CREATE(vtkSparseArray<double>, sparse_double);
VTK_CREATE(vtkSparseArray<vtkStdString>, sparse_string);
SuccessTest<vtkTypedArray, vtkIntegerTypes>(dense_int, __LINE__);
FailTest<vtkTypedArray, vtkIntegerTypes>(dense_double, __LINE__);
FailTest<vtkTypedArray, vtkIntegerTypes>(dense_string, __LINE__);
SuccessTest<vtkTypedArray, vtkIntegerTypes>(sparse_int, __LINE__);
FailTest<vtkTypedArray, vtkIntegerTypes>(sparse_double, __LINE__);
FailTest<vtkTypedArray, vtkIntegerTypes>(sparse_string, __LINE__);
FailTest<vtkTypedArray, vtkFloatingPointTypes>(dense_int, __LINE__);
SuccessTest<vtkTypedArray, vtkFloatingPointTypes>(dense_double, __LINE__);
FailTest<vtkTypedArray, vtkFloatingPointTypes>(dense_string, __LINE__);
FailTest<vtkTypedArray, vtkFloatingPointTypes>(sparse_int, __LINE__);
SuccessTest<vtkTypedArray, vtkFloatingPointTypes>(sparse_double, __LINE__);
FailTest<vtkTypedArray, vtkFloatingPointTypes>(sparse_string, __LINE__);
SuccessTest<vtkTypedArray, vtkNumericTypes>(dense_int, __LINE__);
SuccessTest<vtkTypedArray, vtkNumericTypes>(dense_double, __LINE__);
FailTest<vtkTypedArray, vtkNumericTypes>(dense_string, __LINE__);
SuccessTest<vtkTypedArray, vtkNumericTypes>(sparse_int, __LINE__);
SuccessTest<vtkTypedArray, vtkNumericTypes>(sparse_double, __LINE__);
FailTest<vtkTypedArray, vtkNumericTypes>(sparse_string, __LINE__);
FailTest<vtkTypedArray, vtkStringTypes>(dense_int, __LINE__);
FailTest<vtkTypedArray, vtkStringTypes>(dense_double, __LINE__);
SuccessTest<vtkTypedArray, vtkStringTypes>(dense_string, __LINE__);
FailTest<vtkTypedArray, vtkStringTypes>(sparse_int, __LINE__);
FailTest<vtkTypedArray, vtkStringTypes>(sparse_double, __LINE__);
SuccessTest<vtkTypedArray, vtkStringTypes>(sparse_string, __LINE__);
SuccessTest<vtkTypedArray, vtkAllTypes>(dense_int, __LINE__);
SuccessTest<vtkTypedArray, vtkAllTypes>(dense_double, __LINE__);
SuccessTest<vtkTypedArray, vtkAllTypes>(dense_string, __LINE__);
SuccessTest<vtkTypedArray, vtkAllTypes>(sparse_int, __LINE__);
SuccessTest<vtkTypedArray, vtkAllTypes>(sparse_double, __LINE__);
SuccessTest<vtkTypedArray, vtkAllTypes>(sparse_string, __LINE__);
SuccessTest<vtkDenseArray, vtkAllTypes>(dense_int, __LINE__);
FailTest<vtkDenseArray, vtkAllTypes>(sparse_int, __LINE__);
FailTest<vtkSparseArray, vtkAllTypes>(dense_int, __LINE__);
SuccessTest<vtkSparseArray, vtkAllTypes>(sparse_int, __LINE__);
return 0;
}
catch (std::exception& e)
{
cerr << e.what() << endl;
return 1;
}
}
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