DataStore::const_iterator DataStore::end() const
{
if (!IsOpen())
throw std::runtime_error("Must open datastore before calling end()");
return DataStore::const_iterator(*this, GetNumRecords());
}
float DataFile::GetAutoAxisMin(int item) {
float Mn, order, magnitude;
float min = Min[item];
float max = Max[item];
if (max == 0.0 && min == 0.0) return(0.0);
if (StartIdx != 0 || (EndIdx != GetNumRecords()-1)) {
min = Data[StartIdx][item];
for (int rec=StartIdx+1; rec<=EndIdx; rec++) {
if (Data[rec][item] < min) min = Data[rec][item];
}
}
order = (int)(log10(fabs(min)));
magnitude = pow((double)10.0, (double)order);
if (min > 0.0) Mn = ((int)(min / magnitude)) * magnitude;
else Mn = ((int)(min / magnitude) - 1) * magnitude;
return Mn;
}
float DataFile::GetAutoAxisMax(int item) {
double Mx, order, magnitude;
float max = Max[item];
float min = Min[item];
if (max == 0.0 && min == 0.0) return(1.0);
if (StartIdx != 0 || EndIdx != (GetNumRecords()-1)) {
Mx = Data[StartIdx][item];
for (int rec=StartIdx+1; rec<=EndIdx; rec++) {
if (Data[rec][item] > Mx) Mx = Data[rec][item];
}
}
order = (int)(log10(fabs(max)));
magnitude = pow((double)10.0, (double)order);
if (max > 0.0) Mx = ((int)(max / magnitude) + 1) * magnitude;
else Mx = ((int)(max / magnitude)) * magnitude;
return Mx;
}
DataFile::DataFile(string fname) {
int count=0;
unsigned short start, end;
string var;
f.open(fname.c_str());
f.setf(ios::skipws);
if ( !f ) {
cout << "fileopen failed for file " << fname << endl << endl;
exit(-1);
} else {
cout << "File " << fname << " successfully opened." << endl;
}
getline(f, data_str);
end = 0;
while (1) {
start = end;
while (data_str[start] == ' ') start++;
end = data_str.find(",", start);
count++;
if (end >= 65535) {
end = data_str.size();
var = data_str.substr(start, end-start);
names.push_back(var);
break;
} else {
var = data_str.substr(start, end-start);
names.push_back(var);
end++;
}
}
cout << "Done parsing names. Reading data ..." << endl;
int row=0, column=0;
char scratch[10];
while (1) {
column = 0;
Data.push_back(*(new Row()));
while (1) {
Data[row].push_back(0.0);
f >> Data[row][column];
if (f.eof()) {
Data.pop_back();
break;
}
if (++column == count) break;
else f >> scratch;
}
row++;
if (f.eof()) break;
}
for (int i=0;i<GetNumFields();i++) {
Max.push_back(0.0);
Min.push_back(0.0);
}
for (int fld=0; fld<GetNumFields(); fld++) {
Max[fld] = Data[0][fld];
Min[fld] = Data[0][fld];
for (int rec=1;rec<GetNumRecords();rec++) {
if (Data[rec][fld] > Max[fld]) Max[fld] = Data[rec][fld];
else if (Data[rec][fld] < Min[fld]) Min[fld] = Data[rec][fld];
}
}
StartIdx = 0;
EndIdx = GetNumRecords()-1;
cout << endl << "Done Reading data ..." << endl;
}
