int main(int argc, char ** argv) {
MPI_Init(&argc, &argv);
NcError error(NcError::silent_nonfatal);
try {
// Input filename
std::string strInputFile;
// Output filename
std::string strOutputFile;
// Separate topography file
std::string strTopographyFile;
// List of variables to extract
std::string strVariables;
// Extract geopotential height
bool fGeopotentialHeight;
// Pressure levels to extract
std::string strPressureLevels;
// Height levels to extract
std::string strHeightLevels;
// Extract variables at the surface
bool fExtractSurface;
// Extract total energy
bool fExtractTotalEnergy;
// Parse the command line
BeginCommandLine()
CommandLineString(strInputFile, "in", "");
CommandLineString(strOutputFile, "out", "");
CommandLineString(strVariables, "var", "");
CommandLineBool(fGeopotentialHeight, "output_z");
CommandLineBool(fExtractTotalEnergy, "output_energy");
CommandLineString(strPressureLevels, "p", "");
CommandLineString(strHeightLevels, "z", "");
CommandLineBool(fExtractSurface, "surf");
ParseCommandLine(argc, argv);
EndCommandLine(argv)
AnnounceBanner();
// Check command line arguments
if (strInputFile == "") {
_EXCEPTIONT("No input file specified");
}
if (strOutputFile == "") {
_EXCEPTIONT("No output file specified");
}
if (strVariables == "") {
_EXCEPTIONT("No variables specified");
}
// Parse variable string
std::vector< std::string > vecVariableStrings;
ParseVariableList(strVariables, vecVariableStrings);
// Check variables
if (vecVariableStrings.size() == 0) {
_EXCEPTIONT("No variables specified");
}
// Parse pressure level string
std::vector<double> vecPressureLevels;
ParseLevelArray(strPressureLevels, vecPressureLevels);
int nPressureLevels = (int)(vecPressureLevels.size());
for (int k = 0; k < nPressureLevels; k++) {
if (vecPressureLevels[k] <= 0.0) {
_EXCEPTIONT("Non-positive pressure values not allowed");
}
}
// Parse height level string
std::vector<double> vecHeightLevels;
ParseLevelArray(strHeightLevels, vecHeightLevels);
int nHeightLevels = (int)(vecHeightLevels.size());
// Check pressure levels
if ((nPressureLevels == 0) &&
(nHeightLevels == 0) &&
(!fExtractSurface)
) {
_EXCEPTIONT("No pressure / height levels to process");
}
// Open input file
AnnounceStartBlock("Loading input file");
NcFile ncdf_in(strInputFile.c_str(), NcFile::ReadOnly);
if (!ncdf_in.is_valid()) {
_EXCEPTION1("Unable to open file \"%s\" for reading",
strInputFile.c_str());
}
// Load time array
Announce("Time");
NcVar * varTime = ncdf_in.get_var("time");
if (varTime == NULL) {
_EXCEPTION1("File \"%s\" does not contain variable \"time\"",
strInputFile.c_str());
}
int nTime = varTime->get_dim(0)->size();
DataArray1D<double> dTime(nTime);
varTime->set_cur((long)0);
varTime->get(&(dTime[0]), nTime);
// Load latitude array
Announce("Latitude");
NcVar * varLat = ncdf_in.get_var("lat");
if (varLat == NULL) {
_EXCEPTION1("File \"%s\" does not contain variable \"lat\"",
strInputFile.c_str());
}
int nLat = varLat->get_dim(0)->size();
DataArray1D<double> dLat(nLat);
varLat->set_cur((long)0);
varLat->get(&(dLat[0]), nLat);
// Load longitude array
Announce("Longitude");
NcVar * varLon = ncdf_in.get_var("lon");
if (varLon == NULL) {
_EXCEPTION1("File \"%s\" does not contain variable \"lon\"",
strInputFile.c_str());
}
int nLon = varLon->get_dim(0)->size();
DataArray1D<double> dLon(nLon);
varLon->set_cur((long)0);
varLon->get(&(dLon[0]), nLon);
// Load level array
Announce("Level");
NcVar * varLev = ncdf_in.get_var("lev");
if (varLev == NULL) {
_EXCEPTION1("File \"%s\" does not contain variable \"lev\"",
strInputFile.c_str());
}
int nLev = varLev->get_dim(0)->size();
DataArray1D<double> dLev(nLev);
varLev->set_cur((long)0);
varLev->get(&(dLev[0]), nLev);
// Load level interface array
Announce("Interface");
NcVar * varILev = ncdf_in.get_var("ilev");
int nILev = 0;
DataArray1D<double> dILev;
if (varILev == NULL) {
Announce("Warning: Variable \"ilev\" not found");
} else {
nILev = varILev->get_dim(0)->size();
if (nILev != nLev + 1) {
_EXCEPTIONT("Variable \"ilev\" must have size lev+1");
}
dILev.Allocate(nILev);
varILev->set_cur((long)0);
varILev->get(&(dILev[0]), nILev);
}
// Load topography
Announce("Topography");
NcVar * varZs = ncdf_in.get_var("Zs");
if (varZs == NULL) {
_EXCEPTION1("File \"%s\" does not contain variable \"Zs\"",
strInputFile.c_str());
}
DataArray2D<double> dZs(nLat, nLon);
varZs->set_cur((long)0, (long)0);
varZs->get(&(dZs[0][0]), nLat, nLon);
AnnounceEndBlock("Done");
// Open output file
AnnounceStartBlock("Constructing output file");
NcFile ncdf_out(strOutputFile.c_str(), NcFile::Replace);
if (!ncdf_out.is_valid()) {
_EXCEPTION1("Unable to open file \"%s\" for writing",
strOutputFile.c_str());
}
CopyNcFileAttributes(&ncdf_in, &ncdf_out);
// Output time array
Announce("Time");
NcDim * dimOutTime = ncdf_out.add_dim("time");
NcVar * varOutTime = ncdf_out.add_var("time", ncDouble, dimOutTime);
varOutTime->set_cur((long)0);
varOutTime->put(&(dTime[0]), nTime);
CopyNcVarAttributes(varTime, varOutTime);
// Output pressure array
NcDim * dimOutP = NULL;
NcVar * varOutP = NULL;
if (nPressureLevels > 0) {
Announce("Pressure");
dimOutP = ncdf_out.add_dim("p", nPressureLevels);
varOutP = ncdf_out.add_var("p", ncDouble, dimOutP);
varOutP->set_cur((long)0);
varOutP->put(&(vecPressureLevels[0]), nPressureLevels);
}
// Output height array
NcDim * dimOutZ = NULL;
NcVar * varOutZ = NULL;
if (nHeightLevels > 0) {
Announce("Height");
dimOutZ = ncdf_out.add_dim("z", nHeightLevels);
varOutZ = ncdf_out.add_var("z", ncDouble, dimOutZ);
varOutZ->set_cur((long)0);
varOutZ->put(&(vecHeightLevels[0]), nHeightLevels);
}
// Output latitude and longitude array
Announce("Latitude");
NcDim * dimOutLat = ncdf_out.add_dim("lat", nLat);
NcVar * varOutLat = ncdf_out.add_var("lat", ncDouble, dimOutLat);
varOutLat->set_cur((long)0);
varOutLat->put(&(dLat[0]), nLat);
CopyNcVarAttributes(varLat, varOutLat);
Announce("Longitude");
NcDim * dimOutLon = ncdf_out.add_dim("lon", nLon);
NcVar * varOutLon = ncdf_out.add_var("lon", ncDouble, dimOutLon);
varOutLon->set_cur((long)0);
varOutLon->put(&(dLon[0]), nLon);
CopyNcVarAttributes(varLon, varOutLon);
// Output topography
Announce("Topography");
NcVar * varOutZs = ncdf_out.add_var(
"Zs", ncDouble, dimOutLat, dimOutLon);
varOutZs->set_cur((long)0, (long)0);
varOutZs->put(&(dZs[0][0]), nLat, nLon);
AnnounceEndBlock("Done");
// Done
AnnounceEndBlock("Done");
// Load all variables
Announce("Loading variables");
std::vector<NcVar *> vecNcVar;
for (int v = 0; v < vecVariableStrings.size(); v++) {
vecNcVar.push_back(ncdf_in.get_var(vecVariableStrings[v].c_str()));
if (vecNcVar[v] == NULL) {
_EXCEPTION1("Unable to load variable \"%s\" from file",
vecVariableStrings[v].c_str());
}
}
// Physical constants
Announce("Initializing thermodynamic variables");
NcAtt * attEarthRadius = ncdf_in.get_att("earth_radius");
double dEarthRadius = attEarthRadius->as_double(0);
NcAtt * attRd = ncdf_in.get_att("Rd");
double dRd = attRd->as_double(0);
NcAtt * attCp = ncdf_in.get_att("Cp");
double dCp = attCp->as_double(0);
double dGamma = dCp / (dCp - dRd);
NcAtt * attP0 = ncdf_in.get_att("P0");
double dP0 = attP0->as_double(0);
double dPressureScaling = dP0 * std::pow(dRd / dP0, dGamma);
NcAtt * attZtop = ncdf_in.get_att("Ztop");
double dZtop = attZtop->as_double(0);
// Input data
DataArray3D<double> dataIn(nLev, nLat, nLon);
DataArray3D<double> dataInt(nILev, nLat, nLon);
// Output data
DataArray2D<double> dataOut(nLat, nLon);
// Pressure in column
DataArray1D<double> dataColumnP(nLev);
// Height in column
DataArray1D<double> dataColumnZ(nLev);
DataArray1D<double> dataColumnIZ(nILev);
// Column weights
DataArray1D<double> dW(nLev);
DataArray1D<double> dIW(nILev);
// Loop through all times, pressure levels and variables
AnnounceStartBlock("Interpolating");
// Add energy variable
NcVar * varEnergy;
if (fExtractTotalEnergy) {
varEnergy = ncdf_out.add_var("TE", ncDouble, dimOutTime);
}
// Create output pressure variables
std::vector<NcVar *> vecOutNcVarP;
if (nPressureLevels > 0) {
for (int v = 0; v < vecVariableStrings.size(); v++) {
vecOutNcVarP.push_back(
ncdf_out.add_var(
vecVariableStrings[v].c_str(), ncDouble,
dimOutTime, dimOutP, dimOutLat, dimOutLon));
// Copy attributes
CopyNcVarAttributes(vecNcVar[v], vecOutNcVarP[v]);
}
}
// Create output height variables
std::vector<NcVar *> vecOutNcVarZ;
if (nHeightLevels > 0) {
for (int v = 0; v < vecVariableStrings.size(); v++) {
std::string strVarName = vecVariableStrings[v];
if (nPressureLevels > 0) {
strVarName += "z";
}
vecOutNcVarZ.push_back(
ncdf_out.add_var(
strVarName.c_str(), ncDouble,
dimOutTime, dimOutZ, dimOutLat, dimOutLon));
// Copy attributes
CopyNcVarAttributes(vecNcVar[v], vecOutNcVarZ[v]);
}
}
// Create output surface variable
std::vector<NcVar *> vecOutNcVarS;
if (fExtractSurface) {
for (int v = 0; v < vecVariableStrings.size(); v++) {
std::string strVarName = vecVariableStrings[v];
strVarName += "S";
vecOutNcVarS.push_back(
ncdf_out.add_var(
strVarName.c_str(), ncDouble,
dimOutTime, dimOutLat, dimOutLon));
// Copy attributes
CopyNcVarAttributes(vecNcVar[v], vecOutNcVarS[v]);
}
}
// Loop over all times
for (int t = 0; t < nTime; t++) {
char szAnnounce[256];
sprintf(szAnnounce, "Time %i", t);
AnnounceStartBlock(szAnnounce);
// Rho
DataArray3D<double> dataRho(nLev, nLat, nLon);
NcVar * varRho = ncdf_in.get_var("Rho");
if (varRho == NULL) {
_EXCEPTIONT("Unable to load variable \"Rho\" from file");
}
varRho->set_cur(t, 0, 0, 0);
varRho->get(&(dataRho[0][0][0]), 1, nLev, nLat, nLon);
// Pressure
DataArray3D<double> dataP(nLev, nLat, nLon);
if (nPressureLevels != 0) {
NcVar * varP = ncdf_in.get_var("P");
if (varP == NULL) {
_EXCEPTIONT("Unable to load variable \"P\" from file");
}
varP->set_cur(t, 0, 0, 0);
varP->get(&(dataP[0][0][0]), 1, nLev, nLat, nLon);
}
/*
// Populate pressure array
if (nPressureLevels > 0) {
// Calculate pointwise pressure
for (int k = 0; k < nLev; k++) {
for (int i = 0; i < nLat; i++) {
for (int j = 0; j < nLon; j++) {
dataP[k][i][j] = dPressureScaling
* exp(log(dataRho[k][i][j] * dataP[k][i][j]) * dGamma);
}
}
}
}
*/
// Height everywhere
DataArray3D<double> dataZ(nLev, nLat, nLon);
DataArray3D<double> dataIZ;
if (nILev != 0) {
dataIZ.Allocate(nILev, nLat, nLon);
}
// Populate height array
if ((nHeightLevels > 0) || (fGeopotentialHeight)) {
for (int k = 0; k < nLev; k++) {
for (int i = 0; i < nLat; i++) {
for (int j = 0; j < nLon; j++) {
dataZ[k][i][j] = dZs[i][j] + dLev[k] * (dZtop - dZs[i][j]);
}
}
}
for (int k = 0; k < nILev; k++) {
for (int i = 0; i < nLat; i++) {
for (int j = 0; j < nLon; j++) {
dataIZ[k][i][j] = dZs[i][j] + dILev[k] * (dZtop - dZs[i][j]);
}
}
}
}
// Loop through all pressure levels and variables
for (int v = 0; v < vecNcVar.size(); v++) {
bool fOnInterfaces = false;
// Load in the data array
vecNcVar[v]->set_cur(t, 0, 0, 0);
if (vecNcVar[v]->get_dim(1)->size() == nLev) {
vecNcVar[v]->get(&(dataIn[0][0][0]), 1, nLev, nLat, nLon);
Announce("%s (n)", vecVariableStrings[v].c_str());
} else if (vecNcVar[v]->get_dim(1)->size() == nILev) {
vecNcVar[v]->get(&(dataInt[0][0][0]), 1, nILev, nLat, nLon);
fOnInterfaces = true;
Announce("%s (i)", vecVariableStrings[v].c_str());
} else {
_EXCEPTION1("Variable \"%s\" has invalid level dimension",
vecVariableStrings[v].c_str());
}
// At the physical surface
if (fExtractSurface) {
if (fOnInterfaces) {
for (int i = 0; i < nLat; i++) {
for (int j = 0; j < nLon; j++) {
dataOut[i][j] = dataInt[0][i][j];
}
}
} else {
int kBegin = 0;
int kEnd = 3;
PolynomialInterp::LagrangianPolynomialCoeffs(
3, dLev, dW, 0.0);
// Loop thorugh all latlon indices
for (int i = 0; i < nLat; i++) {
for (int j = 0; j < nLon; j++) {
// Interpolate in the vertical
dataOut[i][j] = 0.0;
for (int k = kBegin; k < kEnd; k++) {
dataOut[i][j] += dW[k] * dataIn[k][i][j];
}
}
}
}
// Write variable
vecOutNcVarS[v]->set_cur(t, 0, 0);
vecOutNcVarS[v]->put(&(dataOut[0][0]), 1, nLat, nLon);
}
// Loop through all pressure levels
for (int p = 0; p < nPressureLevels; p++) {
// Loop thorugh all latlon indices
for (int i = 0; i < nLat; i++) {
for (int j = 0; j < nLon; j++) {
// Store column pressure
for (int k = 0; k < nLev; k++) {
dataColumnP[k] = dataP[k][i][j];
}
// Find weights
int kBegin = 0;
int kEnd = 0;
// On a pressure surface
InterpolationWeightsLinear(
vecPressureLevels[p],
dataColumnP,
kBegin,
kEnd,
dW);
// Interpolate in the vertical
dataOut[i][j] = 0.0;
for (int k = kBegin; k < kEnd; k++) {
dataOut[i][j] += dW[k] * dataIn[k][i][j];
}
}
}
// Write variable
vecOutNcVarP[v]->set_cur(t, p, 0, 0);
vecOutNcVarP[v]->put(&(dataOut[0][0]), 1, 1, nLat, nLon);
}
// Loop through all height levels
for (int z = 0; z < nHeightLevels; z++) {
// Loop thorugh all latlon indices
for (int i = 0; i < nLat; i++) {
for (int j = 0; j < nLon; j++) {
// Find weights
int kBegin = 0;
int kEnd = 0;
// Interpolate from levels to z surfaces
if (!fOnInterfaces) {
for (int k = 0; k < nLev; k++) {
dataColumnZ[k] = dataZ[k][i][j];
}
InterpolationWeightsLinear(
vecHeightLevels[z],
dataColumnZ,
kBegin,
kEnd,
dW);
dataOut[i][j] = 0.0;
for (int k = kBegin; k < kEnd; k++) {
dataOut[i][j] += dW[k] * dataIn[k][i][j];
}
// Interpolate from interfaces to z surfaces
} else {
for (int k = 0; k < nILev; k++) {
dataColumnIZ[k] = dataIZ[k][i][j];
}
InterpolationWeightsLinear(
vecHeightLevels[z],
dataColumnIZ,
kBegin,
kEnd,
dIW);
dataOut[i][j] = 0.0;
for (int k = kBegin; k < kEnd; k++) {
dataOut[i][j] += dIW[k] * dataInt[k][i][j];
}
}
}
}
// Write variable
vecOutNcVarZ[v]->set_cur(t, z, 0, 0);
vecOutNcVarZ[v]->put(&(dataOut[0][0]), 1, 1, nLat, nLon);
}
}
// Output geopotential height
if (fGeopotentialHeight) {
Announce("Geopotential height");
// Output variables
NcVar * varOutZ;
NcVar * varOutZs;
if (nPressureLevels > 0) {
varOutZ = ncdf_out.add_var(
"PHIZ", ncDouble, dimOutTime, dimOutP, dimOutLat, dimOutLon);
}
if (fExtractSurface) {
varOutZs = ncdf_out.add_var(
"PHIZS", ncDouble, dimOutTime, dimOutLat, dimOutLon);
}
// Interpolate onto pressure levels
for (int p = 0; p < nPressureLevels; p++) {
// Loop thorugh all latlon indices
for (int i = 0; i < nLat; i++) {
for (int j = 0; j < nLon; j++) {
int kBegin = 0;
int kEnd = 0;
for (int k = 0; k < nLev; k++) {
dataColumnP[k] = dataP[k][i][j];
}
InterpolationWeightsLinear(
vecPressureLevels[p],
dataColumnP,
kBegin,
kEnd,
dW);
// Interpolate in the vertical
dataOut[i][j] = 0.0;
for (int k = kBegin; k < kEnd; k++) {
dataOut[i][j] += dW[k] * dataZ[k][i][j];
}
}
}
// Write variable
varOutZ->set_cur(t, p, 0, 0);
varOutZ->put(&(dataOut[0][0]), 1, 1, nLat, nLon);
}
// Interpolate onto the physical surface
if (fExtractSurface) {
int kBegin = 0;
int kEnd = 3;
PolynomialInterp::LagrangianPolynomialCoeffs(
3, dLev, dW, 0.0);
// Loop thorugh all latlon indices
for (int i = 0; i < nLat; i++) {
for (int j = 0; j < nLon; j++) {
// Interpolate in the vertical
dataOut[i][j] = 0.0;
for (int k = kBegin; k < kEnd; k++) {
dataOut[i][j] += dW[k] * dataZ[k][i][j];
}
}
}
// Write variable
varOutZs->set_cur(t, 0, 0);
varOutZs->put(&(dataOut[0][0]), 1, nLat, nLon);
}
}
// Extract total energy
if (fExtractTotalEnergy) {
Announce("Total Energy");
// Zonal velocity
DataArray3D<double> dataU(nLev, nLat, nLon);
NcVar * varU = ncdf_in.get_var("U");
varU->set_cur(t, 0, 0, 0);
varU->get(&(dataU[0][0][0]), 1, nLev, nLat, nLon);
// Meridional velocity
DataArray3D<double> dataV(nLev, nLat, nLon);
NcVar * varV = ncdf_in.get_var("V");
varV->set_cur(t, 0, 0, 0);
varV->get(&(dataV[0][0][0]), 1, nLev, nLat, nLon);
// Vertical velocity
DataArray3D<double> dataW(nLev, nLat, nLon);
NcVar * varW = ncdf_in.get_var("W");
varW->set_cur(t, 0, 0, 0);
varW->get(&(dataW[0][0][0]), 1, nLev, nLat, nLon);
// Calculate total energy
double dTotalEnergy = 0.0;
double dElementRefArea =
dEarthRadius * dEarthRadius
* M_PI / static_cast<double>(nLat)
* 2.0 * M_PI / static_cast<double>(nLon);
for (int k = 0; k < nLev; k++) {
for (int i = 0; i < nLat; i++) {
for (int j = 0; j < nLon; j++) {
double dKineticEnergy =
0.5 * dataRho[k][i][j] *
( dataU[k][i][j] * dataU[k][i][j]
+ dataV[k][i][j] * dataV[k][i][j]
+ dataW[k][i][j] * dataW[k][i][j]);
double dInternalEnergy =
dataP[k][i][j] / (dGamma - 1.0);
dTotalEnergy +=
(dKineticEnergy + dInternalEnergy)
* std::cos(M_PI * dLat[i] / 180.0) * dElementRefArea
* (dZtop - dZs[i][j]) / static_cast<double>(nLev);
}
}
}
// Put total energy into file
varEnergy->set_cur(t);
varEnergy->put(&dTotalEnergy, 1);
}
AnnounceEndBlock("Done");
}
AnnounceEndBlock("Done");
} catch(Exception & e) {
Announce(e.ToString().c_str());
}
// Finalize MPI
MPI_Finalize();
}
int main(int argc, char** argv) {
NcError error(NcError::verbose_nonfatal);
try {
// Input file
std::string strInputFile;
// Input file list
std::string strInputFileList;
// Input file format
std::string strInputFormat;
// NetCDF file containing latitude and longitude arrays
std::string strLatLonFile;
// Output file (NetCDF)
std::string strOutputFile;
// Output variable name
std::string strOutputVariable;
// Column in which the longitude index appears
int iLonIxCol;
// Column in which the latitude index appears
int iLatIxCol;
// Begin latitude
double dLatBegin;
// End latitude
double dLatEnd;
// Begin longitude
double dLonBegin;
// End longitude
double dLonEnd;
// Number of latitudes in output
int nLat;
// Number of longitudes in output
int nLon;
// Parse the command line
BeginCommandLine()
CommandLineString(strInputFile, "in", "");
CommandLineString(strInputFileList, "inlist", "");
CommandLineStringD(strInputFormat, "in_format", "std", "(std|visit)");
CommandLineString(strOutputFile, "out", "");
CommandLineString(strOutputVariable, "outvar", "density");
CommandLineInt(iLonIxCol, "iloncol", 8);
CommandLineInt(iLatIxCol, "ilatcol", 9);
CommandLineDouble(dLatBegin, "lat_begin", -90.0);
CommandLineDouble(dLatEnd, "lat_end", 90.0);
CommandLineDouble(dLonBegin, "lon_begin", 0.0);
CommandLineDouble(dLonEnd, "lon_end", 360.0);
CommandLineInt(nLat, "nlat", 180);
CommandLineInt(nLon, "nlon", 360);
ParseCommandLine(argc, argv);
EndCommandLine(argv)
AnnounceBanner();
// Check input
if ((strInputFile == "") && (strInputFileList == "")) {
_EXCEPTIONT("No input file (--in) or (--inlist) specified");
}
if ((strInputFile != "") && (strInputFileList != "")) {
_EXCEPTIONT("Only one input file (--in) or (--inlist) allowed");
}
if (strInputFormat != "std") {
_EXCEPTIONT("UNIMPLEMENTED: Only \"--in_format std\" supported");
}
// Check output
if (strOutputFile == "") {
_EXCEPTIONT("No output file (--out) specified");
}
// Check output variable
if (strOutputVariable == "") {
_EXCEPTIONT("No output variable name (--outvar) specified");
}
// Number of latitudes and longitudes
if (nLat == 0) {
_EXCEPTIONT("UNIMPLEMENTED: --nlat must be specified currently");
}
if (nLon == 0) {
_EXCEPTIONT("UNIMPLEMENTED: --nlon must be specified currently");
}
// Input file list
std::vector<std::string> vecInputFiles;
if (strInputFile != "") {
vecInputFiles.push_back(strInputFile);
}
if (strInputFileList != "") {
GetInputFileList(strInputFileList, vecInputFiles);
}
int nFiles = vecInputFiles.size();
// Density
DataMatrix<int> nCounts;
nCounts.Initialize(nLat, nLon);
// Loop through all files in list
AnnounceStartBlock("Processing files");
std::string strBuffer;
strBuffer.reserve(1024);
for (int f = 0; f < nFiles; f++) {
Announce("File \"%s\"", vecInputFiles[f].c_str());
FILE * fp = fopen(vecInputFiles[f].c_str(), "r");
if (fp == NULL) {
_EXCEPTION1("Unable to open input file \"%s\"",
vecInputFiles[f].c_str());
}
for (;;) {
// Read in the next line
fgets(&(strBuffer[0]), 1024, fp);
int nLength = strlen(&(strBuffer[0]));
// Check for end of file
if (feof(fp)) {
break;
}
// Check for comment line
if (strBuffer[0] == '#') {
continue;
}
// Check for new storm
if (strncmp(&(strBuffer[0]), "start", 5) == 0) {
continue;
}
// Parse line
double dLon;
double dLat;
int iCol = 0;
int iLast = 0;
bool fWhitespace = true;
for (int i = 0; i <= nLength; i++) {
if ((strBuffer[i] == ' ') ||
(strBuffer[i] == ',') ||
(strBuffer[i] == '\t') ||
(strBuffer[i] == '\0')
) {
if (!fWhitespace) {
if (iCol == iLonIxCol) {
strBuffer[i] = '\0';
dLon = atof(&(strBuffer[iLast]));
}
if (iCol == iLatIxCol) {
strBuffer[i] = '\0';
dLat = atof(&(strBuffer[iLast]));
}
}
fWhitespace = true;
} else {
if (fWhitespace) {
iLast = i;
iCol++;
}
fWhitespace = false;
}
}
// Latitude and longitude index
int iLon =
static_cast<int>(static_cast<double>(nLon)
* (dLon - dLonBegin) / (dLonEnd - dLonBegin));
int iLat =
static_cast<int>(static_cast<double>(nLat)
* (dLat - dLatBegin) / (dLatEnd - dLatBegin));
if (iLon == (-1)) {
iLon = 0;
}
if (iLon == nLon) {
iLon = nLon - 1;
}
if (iLat == (-1)) {
iLat = 0;
}
if (iLat == nLat) {
iLat = nLat - 1;
}
if ((iLat < 0) || (iLat >= nLat)) {
_EXCEPTION1("Latitude index (%i) out of range", iLat);
}
if ((iLon < 0) || (iLon >= nLon)) {
_EXCEPTION1("Longitude index (%i) out of range", iLon);
}
nCounts[iLat][iLon]++;
}
fclose(fp);
}
AnnounceEndBlock("Done");
// Output results
AnnounceStartBlock("Output results");
// Load the netcdf output file
NcFile ncOutput(strOutputFile.c_str(), NcFile::Replace);
if (!ncOutput.is_valid()) {
_EXCEPTION1("Unable to open output file \"%s\"",
strOutputFile.c_str());
}
// Create output
NcDim * dimLat = ncOutput.add_dim("lat", nLat);
NcDim * dimLon = ncOutput.add_dim("lon", nLon);
NcVar * varLat = ncOutput.add_var("lat", ncDouble, dimLat);
NcVar * varLon = ncOutput.add_var("lon", ncDouble, dimLon);
varLat->add_att("units", "degrees_north");
varLon->add_att("units", "degrees_east");
DataVector<double> dLat(nLat);
DataVector<double> dLon(nLon);
for (int j = 0; j < nLat; j++) {
dLat[j] = dLatBegin
+ (dLatEnd - dLatBegin)
* (static_cast<double>(j) + 0.5)
/ static_cast<double>(nLat);
}
for (int i = 0; i < nLon; i++) {
dLon[i] = dLonBegin
+ (dLonEnd - dLonBegin)
* (static_cast<double>(i) + 0.5)
/ static_cast<double>(nLon);
}
varLat->put(&(dLat[0]), nLat);
varLon->put(&(dLon[0]), nLon);
// Output counts
NcVar * varCount =
ncOutput.add_var(
strOutputVariable.c_str(),
ncInt,
dimLat,
dimLon);
varCount->put(&(nCounts[0][0]), nLat, nLon);
ncOutput.close();
AnnounceEndBlock("Done");
AnnounceBanner();
} catch(Exception & e) {
Announce(e.ToString().c_str());
}
}