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// SPDX-FileCopyrightText: Copyright (c) Ken Martin, Will Schroeder, Bill Lorensen
// SPDX-License-Identifier: BSD-3-Clause
#include "vtkDataArray.h"
#include "vtkArrayDispatch.h"
#include "vtkDataArrayRange.h"
namespace
{
struct CopyComponentWorker
{
CopyComponentWorker(int srcComponent, int dstComponent)
: SourceComponent(srcComponent)
, DestinationComponent(dstComponent)
{
}
template <typename ArraySrc, typename ArrayDst>
void operator()(ArraySrc* dst, ArrayDst* src) const
{
const auto srcRange = vtk::DataArrayTupleRange(src);
auto dstRange = vtk::DataArrayTupleRange(dst);
using DstType = vtk::GetAPIType<ArrayDst>;
auto dstIter = dstRange.begin();
for (auto v : srcRange)
{
(*dstIter)[DestinationComponent] = static_cast<DstType>(v[SourceComponent]);
++dstIter;
}
}
int SourceComponent = 0;
int DestinationComponent = 0;
};
} // end anon namespace
VTK_ABI_NAMESPACE_BEGIN
//------------------------------------------------------------------------------
void vtkDataArray::CopyComponent(int dstComponent, vtkDataArray* src, int srcComponent)
{
if (this->GetNumberOfTuples() != src->GetNumberOfTuples())
{
vtkErrorMacro(<< "Number of tuples in 'from' (" << src->GetNumberOfTuples() << ") and 'to' ("
<< this->GetNumberOfTuples() << ") do not match.");
return;
}
if (dstComponent < 0 || dstComponent >= this->GetNumberOfComponents())
{
vtkErrorMacro(<< "Specified component " << dstComponent << " in 'to' array is not in [0, "
<< this->GetNumberOfComponents() << ")");
return;
}
if (srcComponent < 0 || srcComponent >= src->GetNumberOfComponents())
{
vtkErrorMacro(<< "Specified component " << srcComponent << " in 'from' array is not in [0, "
<< src->GetNumberOfComponents() << ")");
return;
}
CopyComponentWorker copyComponentWorker(srcComponent, dstComponent);
if (!vtkArrayDispatch::Dispatch2::Execute(this, src, copyComponentWorker))
{
copyComponentWorker(this, src);
}
}
VTK_ABI_NAMESPACE_END
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