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/*=========================================================================
Program: Visualization Toolkit
Module: TestRCalculatorFilter.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 <vtkRCalculatorFilter.h>
#include <vtkSmartPointer.h>
#include <vtkCylinderSource.h>
#include <vtkDataSet.h>
#include <vtkPointData.h>
#include <vtkDoubleArray.h>
#include <vtkArrayExtents.h>
#include <vtkRRandomTableSource.h>
#include <vtkTable.h>
#include <vtkTableToSparseArray.h>
#include <vtkDenseArray.h>
#include <vtksys/ios/iostream>
#include <vtksys/ios/sstream>
#include <vtksys/stl/stdexcept>
namespace
{
#define test_expression(expression) \
{ \
if(!(expression)) \
{ \
vtksys_ios::ostringstream buffer; \
buffer << "Expression failed at line " << __LINE__ << ": " << #expression; \
throw vtkstd::runtime_error(buffer.str()); \
} \
}
bool doubleEquals(double left, double right, double epsilon) {
return (fabs(left - right) < epsilon);
}
}
int TestRCalculatorFilter(int vtkNotUsed(argc), char *vtkNotUsed(argv)[])
{
try
{
int i;
vtkCylinderSource* cs = vtkCylinderSource::New();
vtkRCalculatorFilter* rf = vtkRCalculatorFilter::New();
vtkRRandomTableSource* rts = vtkRRandomTableSource::New();
vtkRCalculatorFilter* rf2 = vtkRCalculatorFilter::New();
vtkDataSet* ds;
vtkPointData* pd;
vtkDoubleArray* da;
vtkDoubleArray* rda;
cs->SetResolution(10);
rf->SetInputConnection(cs->GetOutputPort());
rf->SetRoutput(0);
rf->PutArray("Normals", "Norm");
rf->PutArray("TCoords", "TCoords");
rf->GetArray("Normalsnew", "Norm");
rf->GetArray("TCoordsnew", "TCoords");
rf->SetRscript("Norm = Norm^2\nTCoords = TCoords + TCoords\n");
rf->Update();
ds = vtkDataSet::SafeDownCast(rf->GetOutput());
pd = ds->GetPointData();
da = (vtkDoubleArray*) pd->GetArray("Normals");
rda = (vtkDoubleArray*) pd->GetArray("Normalsnew");
for(i=0;i<da->GetNumberOfTuples();i++)
{
double* itup = da->GetTuple3(i);
double* rtup = rda->GetTuple3(i);
test_expression(doubleEquals(rtup[0],pow(itup[0],2),0.0001));
test_expression(doubleEquals(rtup[1],pow(itup[1],2),0.0001));
test_expression(doubleEquals(rtup[2],pow(itup[2],2),0.0001));
}
da = (vtkDoubleArray*) pd->GetArray("TCoords");
rda = (vtkDoubleArray*) pd->GetArray("TCoordsnew");
for(i=0;i<da->GetNumberOfTuples();i++)
{
double* itup = da->GetTuple2(i);
double* rtup = rda->GetTuple2(i);
test_expression(doubleEquals(rtup[0],itup[0]+itup[0],0.0001));
test_expression(doubleEquals(rtup[1],itup[1]+itup[1],0.0001));
}
rts->SetNumberOfRows(20);
rts->SetStatisticalDistributionForColumn(vtkRRandomTableSource::NORMAL,0.0,1.0,0.0,"Variable One",0);
rts->SetStatisticalDistributionForColumn(vtkRRandomTableSource::NORMAL,0.0,1.0,0.0,"Variable Two",1);
rts->SetStatisticalDistributionForColumn(vtkRRandomTableSource::NORMAL,0.0,1.0,0.0,"Variable Three",2);
rts->SetStatisticalDistributionForColumn(vtkRRandomTableSource::NORMAL,0.0,1.0,0.0,"Variable Four",3);
rf2->SetInputConnection(rts->GetOutputPort());
rf2->SetRoutput(0);
rf2->PutTable("x");
rf2->GetTable("z");
rf2->SetRscript("x\nz = matrix(unlist(x),nrow=length(x[[1]]),ncol=length(x))\n\
z[,1] = sample(0:19)\n\
z[,2] = sample(0:19)\n\
z[,3] = sample(0:19)\n");
rf2->Update();
vtkTable* table = vtkTable::SafeDownCast(rf2->GetOutput());
vtkSmartPointer<vtkTableToSparseArray> source = vtkSmartPointer<vtkTableToSparseArray>::New();
source->AddInputConnection(rf2->GetOutputPort());
source->AddCoordinateColumn("0");
source->AddCoordinateColumn("1");
source->AddCoordinateColumn("2");
source->SetValueColumn("3");
rf->SetInputConnection(source->GetOutputPort());
rf->RemoveAllPutVariables();
rf->RemoveAllGetVariables();
rf->PutArray("0","a");
rf->GetArray("1","a");
rf->SetRoutput(0);
rf->SetRscript("a[,,] = sqrt(a[,,] + 5.0)\n");
rf->Update();
vtkDenseArray<double>* const dense_array =
vtkDenseArray<double>::SafeDownCast(vtkArrayData::SafeDownCast(rf->GetOutput())->GetArray(1));
test_expression(dense_array);
for(i=0;i<table->GetNumberOfColumns();i++)
{
int ind0 = table->GetValue(i,0).ToInt();
int ind1 = table->GetValue(i,1).ToInt();
int ind2 = table->GetValue(i,2).ToInt();
double table_val = rts->GetOutput()->GetValue(i,3).ToDouble();
double dense_val = dense_array->GetValue(vtkArrayCoordinates(ind0,ind1,ind2));
test_expression(doubleEquals(sqrt(table_val + 5.0),dense_val,0.0001));
}
cs->Delete();
rts->Delete();
rf->Delete();
rf2->Delete();
return 0;
}
catch( vtkstd::exception& e )
{
cerr << e.what()
<< "\n";
return 1;
}
}
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