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#include "config.h"
#include <iostream>
#include <sstream>
#include <memory>
#include <stdexcept>
#include <vector>
#include <string>
#include <getopt.h>
#include "TargetSurface.h"
#include "AmiraMeshIO.h"
#include "PSurface.h"
#include "Hdf5IO.h"
#include "VtkIO.h"
#if defined HAVE_AMIRAMESH
#include <amiramesh/AmiraMesh.h>
#endif
#include "PSurfaceSmoother.h"
using namespace std;
using namespace psurface;
/** \brief List of the file types that we support */
enum FileType
{
AMIRA,
HDF5,
VTU,
GMSH
};
////////////////////////////////////////////////////////////////////////////////
//// Routines for printing instructions and file handling
////////////////////////////////////////////////////////////////////////////////
void print_usage() {
cerr << "Usage:" << endl
<< " psurface-smooth -i <inputfilename> -o <outputfilename> -n <number of smoothing cycles>" << endl
<< " -k (optional) set if patches need NOT to be preserved (default: not set)"
<< endl;
}
bool hasExtension(const string& input, const string& ext) {
return input.find(ext) == input.length() - ext.length();
}
FileType filetypeOf(const string& filename) {
FileType type;
if(hasExtension(filename, ".am") || hasExtension(filename,".par"))
type = AMIRA;
else if(hasExtension(filename,".h5"))
type = HDF5;
else if(hasExtension(filename,".vtu"))
type = VTU;
else if(hasExtension(filename,".msh"))
throw runtime_error("Gmsh files are not supported here.");
else
throw runtime_error(string("File ") + filename + " has unknown extension.");
return type;
}
////////////////////////////////////////////////////////////////////////////////
//// Main
////////////////////////////////////////////////////////////////////////////////
int main(int argc, char **argv) try {
////// Parse arguments.
string input, output;
int n = -1;
bool keepPatches = true;
int opt;
while ((opt = getopt(argc, argv, ":i:o:n:k")) != EOF) {
switch (opt) {
case 'i':
input = optarg;
break;
case 'o':
output = optarg;
break;
case 'n':
stringstream(optarg) >> n;
break;
case 'k':
keepPatches = false;
break;
default:
print_usage();
throw runtime_error("Tried to set invalid flag.");
}
}
////// Check arguments.
// Got input and output filenames ?
if (input.empty() or output.empty()) {
print_usage();
throw runtime_error("Input or output file not specified.");
}
// Got a valid number of smoothing cycles ?
if (0 > n) {
print_usage();
throw runtime_error("Number of smoothing cycles not set or negative.");
}
// Check Filetype.
FileType inputType = filetypeOf(input),
outputType = filetypeOf(output);
////// Read input file.
auto_ptr<PSurface<2,float> > par(new PSurface<2,float>);
auto_ptr<Surface> surf(new Surface);
switch(inputType) {
case HDF5:
{
#if HAVE_HDF5
auto_ptr<Hdf5IO<float,2> > pconvert(new Hdf5IO<float,2>(par.get()));
pconvert->initCompletePSurface(surf.get(), input);
#else
cerr << "You have given an hdf5 input file, but psurface-smooth" << endl;
cerr << "has been compiled without hdf5 support!" << endl;
throw runtime_error("No hdf5 support.");
#endif
}
break;
case AMIRA:
{
#if defined HAVE_AMIRAMESH
AmiraMesh* am = AmiraMesh::read(input.c_str());
PSURFACE_API AmiraMeshIO<float> amIO;
if( !amIO.initFromAmiraMesh(par.get(), am, input.c_str(), surf.get()))
throw runtime_error("Unable to initiate psurface from amiramesh file!");
#else
cerr << "You have given an amira input file, but psurface-smooth" << endl;
cerr << "has been compiled without amira support!" << endl;
throw runtime_error("No amira support.");
#endif
}
break;
default:
{
throw runtime_error("Unknown input type.");
}
};
////// Smooth.
std::vector<unsigned int> nodeStack;
for (int i = 0; i < n; ++i)
for (int k = 0; k < par->getNumEdges(); ++k)
PSurfaceSmoother<float>::applyEdgeRelaxation(par.get(), k, keepPatches, nodeStack);
////// Write output file.
switch(outputType) {
case HDF5:
{
#if HAVE_HDF5
string xdmffile(output);
xdmffile.erase (xdmffile.end() - 3, xdmffile.end());
xdmffile.append(".xdmf");
auto_ptr<Hdf5IO<float,2> > pn(new Hdf5IO<float,2>(par.get()));
pn->createHdfAndXdmf(xdmffile, output, false);
#else
cerr << "You have given an hdf5 output file, but psurface-smooth" << endl;
cerr << "has been compiled without hdf5 support!" << endl;
throw runtime_error("No hdf5 support.");
#endif
}
break;
case VTU:
{
auto_ptr<VTKIO<float,2> > pn(new VTKIO<float,2>(par.get()));
pn->createVTU(output.c_str(), output.substr(0, output.length()-string(".vtu").length()) + "-graph.vtu");
}
break;
case AMIRA:
{
#if defined HAVE_AMIRAMESH
PSURFACE_API AmiraMeshIO<float> amIO;
amIO.writeAmiraMesh(par.get(), output.c_str());
#else
cerr << "You have given an amira output file, but psurface-smooth" << endl;
cerr << "has been compiled without amira support!" << endl;
throw runtime_error("No amira support.");
#endif
}
break;
default:
throw runtime_error("Unknown output type.");
};
return 0;
} catch (const exception& e) {
cerr << "ERROR: " << e.what() << endl;
return -1;
}
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