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/*=========================================================================
Program: Visualization Toolkit
Module: TestSQLGraphReader.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.
=========================================================================*/
/*-------------------------------------------------------------------------
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.
-------------------------------------------------------------------------*/
#include "vtkActor.h"
#include "vtkGraphMapper.h"
#include "vtkMath.h"
#include "vtkRegressionTestImage.h"
#include "vtkRenderer.h"
#include "vtkRenderWindow.h"
#include "vtkRenderWindowInteractor.h"
#include "vtkSQLGraphReader.h"
#include "vtkSQLiteDatabase.h"
#include "vtkSQLQuery.h"
#include "vtkSmartPointer.h"
#include "vtkStdString.h"
#include <sstream>
#define VTK_CREATE(type, name) \
vtkSmartPointer<type> name = vtkSmartPointer<type>::New()
int TestSQLGraphReader(int argc, char* argv[])
{
vtkIdType vertices = 10;
// Create a SQLite in-memory database
VTK_CREATE(vtkSQLiteDatabase, database);
database->SetDatabaseFileName(":memory:");
bool ok = database->Open("");
if (!ok)
{
cerr << "Could not open database!" << endl;
cerr << database->GetLastErrorText() << endl;
return 1;
}
// Build a graph
vtkSmartPointer<vtkSQLQuery> q;
q.TakeReference(database->GetQueryInstance());
std::ostringstream oss;
q->SetQuery("DROP TABLE IF EXISTS vertices");
q->Execute();
q->SetQuery("CREATE TABLE vertices (id INTEGER, x FLOAT, y FLOAT)");
q->Execute();
for (int i = 0; i < vertices; i++)
{
oss.str("");
oss << "INSERT INTO vertices VALUES(" << i << ", "
<< 0.5*cos(i*2.0*vtkMath::Pi()/vertices) << ", "
<< 0.5*sin(i*2.0*vtkMath::Pi()/vertices) << ")" << endl;
q->SetQuery(oss.str().c_str());
q->Execute();
}
q->SetQuery("DROP TABLE IF EXISTS edges");
q->Execute();
q->SetQuery("CREATE TABLE edges (id INTEGER, source INTEGER, target INTEGER)");
q->Execute();
for (int i = 0; i < vertices; i++)
{
oss.str("");
oss << "INSERT INTO edges VALUES(" << 2*i+0 << ", "
<< i << ", " << (i+1)%vertices << ")" << endl;
q->SetQuery(oss.str().c_str());
q->Execute();
oss.str("");
oss << "INSERT INTO edges VALUES(" << 2*i+1 << ", "
<< (i+3)%vertices << ", " << i << ")" << endl;
q->SetQuery(oss.str().c_str());
q->Execute();
}
// Set up graph reader
VTK_CREATE(vtkSQLGraphReader, reader);
vtkSmartPointer<vtkSQLQuery> edgeQuery;
edgeQuery.TakeReference(database->GetQueryInstance());
edgeQuery->SetQuery("select * from edges");
reader->SetEdgeQuery(edgeQuery);
vtkSmartPointer<vtkSQLQuery> vertexQuery;
vertexQuery.TakeReference(database->GetQueryInstance());
vertexQuery->SetQuery("select * from vertices");
reader->SetVertexQuery(vertexQuery);
reader->SetSourceField("source");
reader->SetTargetField("target");
reader->SetVertexIdField("id");
reader->SetXField("x");
reader->SetYField("y");
// Display the graph
VTK_CREATE(vtkGraphMapper, mapper);
mapper->SetInputConnection(reader->GetOutputPort());
mapper->SetEdgeColorArrayName("id");
mapper->ColorEdgesOn();
mapper->SetVertexColorArrayName("id");
mapper->ColorVerticesOn();
VTK_CREATE(vtkActor, actor);
actor->SetMapper(mapper);
VTK_CREATE(vtkRenderer, ren);
ren->AddActor(actor);
VTK_CREATE(vtkRenderWindowInteractor, iren);
VTK_CREATE(vtkRenderWindow, win);
win->AddRenderer(ren);
win->SetInteractor(iren);
int retVal = vtkRegressionTestImage(win);
if (retVal == vtkRegressionTester::DO_INTERACTOR)
{
iren->Initialize();
iren->Start();
retVal = vtkRegressionTester::PASSED;
}
return !retVal;
}
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