/// <summary>
/// Converts a csv file into odc.
/// Multiple entries are stored as different types.
/// </summary>
/// <param name="csv">The CSV file to read</param>
/// <param name="highestZone">The highest numbered zone</param>
/// <param name="times">How many time periods to account for</param>
/// <param name="types">How many different types of data to store per OD</param>
/// <param name="odc">The file to write to</param>
/// <param name="header">Does the CSV have a header?</param>
/// <param name="offsetTimes">The offset into the times</param>
/// <param name="offsetType">Should we offset the CSV's information in the types?</param>
public void LoadCSVTimes(string csv, bool header, int offsetTimes, int offsetType)
{
// Gain access to the files
StreamReader reader = new StreamReader(new
FileStream(csv, FileMode.Open, FileAccess.Read, FileShare.Read,
0x1000, FileOptions.SequentialScan));
FilesLoaded.Add(new DimensionInfo(csv, offsetType, offsetTimes, false, header, true));
string line;
int injectIndex = this.Times * offsetType + offsetTimes;
if (header)
{
reader.ReadLine();
}
// Read the line from the CSV
while ((line = reader.ReadLine()) != null)
{
// Calculate where to store the data
int pos, next;
int o = FastParse.ParseInt(line, 0, (pos = line.IndexOf(',')));
int d = FastParse.ParseInt(line, pos + 1, (next = line.IndexOf(',', pos + 1)));
pos = next + 1;
int length = line.Length;
// if we haven't stored anything for this O before, load some memory for it now
if (Data[o] == null)
{
Data[o] = new float[HighestZone][];
HasData[o] = new bool[HighestZone];
for (int k = HighestZone - 1; k >= 0; k--)
{
Data[o][k] = new float[AmmountOfData];
}
for (int k = 0; k < HighestZone; k++)
{
HasData[o][k] = false;
}
}
int entry = 0;
for (int i = pos; i < length; i++)
{
if (line[i] == ',')
{
float num = FastParse.ParseFixedFloat(line, pos, i - pos);
this.Data[o][d][injectIndex + entry] = num;
this.HasData[o][d] = true;
entry++;
pos = i + 1;
}
}
if (pos < length)
{
this.Data[o][d][injectIndex + entry] = FastParse.ParseFixedFloat(line, pos, length - pos);
}
}
// Close our access to the file streams
reader.Close();
}
/// <summary>
/// Loads the data from an emme2 311 file into a ODC
/// </summary>
/// <param name="emme2File">The emm2 file to read from</param>
/// <param name="highestZone">The highest numbered zone</param>
/// <param name="times">The ammount of distinct times</param>
/// <param name="types">The number of types of variables to store per time period</param>
/// <param name="odc">Where to save this data</param>
/// <param name="offsetTimes">The time offset to use</param>
/// <param name="offsetType">The type offset to use</param>
public void LoadEMME2(string emme2File, int offsetTimes, int offsetType)
{
string line;
int pos;
var ammountOfData = this.Types * this.Times;
// do this because highest zone isn't high enough for array indexes
using (StreamReader reader = new StreamReader(new
FileStream(emme2File, FileMode.Open, FileAccess.Read, FileShare.Read,
0x1000, FileOptions.SequentialScan)))
{
int injectIndex = this.Times * offsetType + offsetTimes;
while ((line = reader.ReadLine()) != null)
{
if (line.Length > 0 && line[0] == 'a')
{
break;
}
}
while ((line = reader.ReadLine()) != null)
{
int length = line.Length;
// don't read blank lines
if (length < 7)
{
continue;
}
int o = FastParse.ParseFixedInt(line, 0, 7);
pos = 7;
while (pos + 8 <= length)
{
int d = FastParse.ParseFixedInt(line, pos, 7);
var data = Data[o, d];
if (data == null)
{
Data[o, d] = data = new float[ammountOfData];
}
if (line[pos + 7] == ':')
{
data[injectIndex] = FastParse.ParseFixedFloat(line, pos + 8, 5);
}
else
{
data[injectIndex] = FastParse.ParseFixedFloat(line, pos + 8, (length > ((pos + 8) + 9) ? 9 : (length - (pos + 8))));
}
pos += 13;
}
}
}
}
/// <summary>
/// Converts a csv file into odc.
/// Multiple entries are stored as different types.
/// </summary>
/// <param name="csv">The CSV file to read</param>
/// <param name="highestZone">The highest numbered zone</param>
/// <param name="times">How many time periods to account for</param>
/// <param name="types">How many different types of data to store per OD</param>
/// <param name="odc">The file to write to</param>
/// <param name="header">Does the CSV have a header?</param>
/// <param name="offsetTimes">The offset into the times</param>
/// <param name="offsetType">Should we offset the CSV's information in the types?</param>
public void LoadCSVTimes(string csv, bool header, int offsetTimes, int offsetType)
{
// Gain access to the files
using (StreamReader reader = new StreamReader(new
FileStream(csv, FileMode.Open, FileAccess.Read, FileShare.Read,
0x1000, FileOptions.SequentialScan)))
{
string line;
var ammountOfData = this.Types * this.Times;
int injectIndex = this.Times * offsetType + offsetTimes;
if (header)
{
reader.ReadLine();
}
// Read the line from the CSV
while ((line = reader.ReadLine()) != null)
{
// Calculate where to store the data
int pos, next;
int o = FastParse.ParseInt(line, 0, (pos = line.IndexOf(',')));
int d = FastParse.ParseInt(line, pos + 1, (next = line.IndexOf(',', pos + 1)));
pos = next + 1;
int length = line.Length;
int entry = 0;
var position = Data[o, d];
if (position == null)
{
Data[o, d] = position = new float[ammountOfData];
}
for (int i = pos; i < length; i++)
{
if (line[i] == ',')
{
position[injectIndex + entry] = FastParse.ParseFixedFloat(line, pos, i - pos);
entry++;
pos = i + 1;
}
}
if (pos < length)
{
position[injectIndex + entry] = FastParse.ParseFixedFloat(line, pos, length - pos);
}
}
// Close our access to the file streams
}
}
/// <summary>
/// Converts a csv file into odc.
/// </summary>
/// <param name="csv">The CSV file to parse</param>
/// <param name="highestZone">The highest numbered zone</param>
/// <param name="types">The number of types of data per recored</param>
/// <param name="zfc">The ZFC we are to produce</param>
/// <param name="header">Does this csv file contain a header?</param>
/// <param name="offset">How much other data comes before our new entries?</param>
public static void CsvToZfc(string csv, int highestZone, int types, string zfc, bool header, int offset)
{
StreamReader reader = new StreamReader(new FileStream(csv, FileMode.Open, FileAccess.Read, FileShare.Read, 0x1000, FileOptions.SequentialScan));
BinaryWriter writer = new BinaryWriter(new
FileStream(zfc, FileMode.OpenOrCreate, FileAccess.Write,
FileShare.None, 0x1000, FileOptions.RandomAccess),
Encoding.Default);
string line;
writer.Write(highestZone);
writer.Write(0);
writer.Write(types);
byte[] data = new byte[types * 4];
if (header)
{
reader.ReadLine();
}
while ((line = reader.ReadLine()) != null)
{
int position;
int origin = FastParse.ParseInt(line, 0, (position = line.IndexOf(',')));
position++;
writer.BaseStream.Seek((sizeof(int) * 3) +
((origin * types) + offset) * sizeof(float), SeekOrigin.Begin);
// It is faster to store the length before itterating over it
int length = line.Length;
int ammount = 0;
for (int i = position; i < length; i++)
{
if (line[i] == ',')
{
LoadData(data, FastParse.ParseFloat(line, position, i), ref ammount);
position = i + 1;
}
}
LoadData(data, FastParse.ParseFloat(line, position, line.Length), ref ammount);
writer.Write(data, 0, ammount);
}
reader.Close();
writer.Close();
}
/// <summary>
/// Loads the data from an emme2 311 file into a ODC
/// </summary>
/// <param name="emme2File">The emm2 file to read from</param>
/// <param name="highestZone">The highest numbered zone</param>
/// <param name="times">The ammount of distinct times</param>
/// <param name="types">The number of types of variables to store per time period</param>
/// <param name="odc">Where to save this data</param>
/// <param name="offsetTimes">The time offset to use</param>
/// <param name="offsetType">The type offset to use</param>
public void LoadEMME2(string emme2File, int offsetTimes, int offsetType)
{
string line;
int pos;
// do this because highest zone isn't high enough for array indexes
HighestZone += 1;
using (StreamReader reader = new StreamReader(new
FileStream(emme2File, FileMode.Open, FileAccess.Read, FileShare.Read,
0x1000, FileOptions.SequentialScan)))
{
FilesLoaded.Add(new DimensionInfo(emme2File, offsetType, offsetTimes, true, false, false));
int injectIndex = this.Times * offsetType + offsetTimes;
while ((line = reader.ReadLine()) != null)
{
if (line.Length > 0 && line[0] == 'a')
{
break;
}
}
while ((line = reader.ReadLine()) != null)
{
int length = line.Length;
// don't read blank lines
if (length < 7)
{
continue;
}
int o = FastParse.ParseFixedInt(line, 0, 7);
if (o > Data.Length)
{
continue;
}
if (Data[o] == null)
{
Data[o] = new float[HighestZone][];
for (int k = HighestZone - 1; k >= 0; k--)
{
Data[o][k] = new float[AmmountOfData];
}
HasData[o] = new bool[HighestZone];
for (int i = 0; i < HighestZone; i++)
{
HasData[o][i] = false;
}
}
pos = 7;
while (pos + 13 <= length)
{
int d = FastParse.ParseFixedInt(line, pos, 7);
if (d < Data.Length)
{
if (line[pos + 7] == ':')
{
Data[o][d][injectIndex] = FastParse.ParseFixedFloat(line, pos + 8, 5);
}
else
{
Data[o][d][injectIndex] = FastParse.ParseFixedFloat(line, pos + 8, 9);
}
HasData[o][d] = true;
}
pos += 13;
}
}
}
}
