/// <summary>
/// Algorithm to calculate the safe breaking distance
/// for a single piece of track
/// </summary>
/// <param name="brakeLocation"></param>
/// <param name="targetLocation"></param>
/// <param name="gradeWorst"></param>
/// <param name="speedMax"></param>
/// <param name="overspeed"></param>
/// <param name="vehicleAccel"></param>
/// <param name="reactionTime"></param>
/// <param name="brakeRate"></param>
/// <param name="runwayAccelSec"></param>
/// <param name="propulsionRemSec"></param>
/// <param name="brakeBuildUpSec"></param>
/// <param name="overhangDist"></param>
/// <param name="safetyFact"></param>
/// <returns></returns>
public static double SafeBrakingDistanceCalculations(TrackSegment obj)
{
double availStopDist = Math.Abs(obj.TargetLocation - obj.brakeLocation);
//Console.WriteLine(availStopDist);
double overspeedTotal = obj.OverSpeed + obj.SpeedMax;
//Console.WriteLine(overspeedTotal);
double velocityFinal = (obj.VehicleAccel * 1.2) + overspeedTotal;
//Console.WriteLine(velocityFinal);
double reactionDist = obj.ReactionTime * overspeedTotal * 1.467;
//Console.WriteLine(reactionDist);
double negGradeAdjBrakeDist = 0.733 * velocityFinal * velocityFinal / (obj.BrakeRate + (0.219 * obj.GradeWorst));
//Console.WriteLine(negGradeAdjBrakeDist);
double posGradeAdjBrakeDist = 0.733 * velocityFinal * velocityFinal / (obj.BrakeRate - (0.219 * obj.GradeWorst));
//Console.WriteLine(posGradeAdjBrakeDist);
double runwayAccelFt = 1.467 * (0.5 * obj.VehicleAccel * obj.RunwayAccelSec + overspeedTotal) * obj.RunwayAccelSec;
//Console.WriteLine(runwayAccelFt);
double propulsionRemFt = velocityFinal * 1.467 * obj.PropulsionRemSec;
//Console.WriteLine(propulsionRemFt);
double brakeBuildUpFt = velocityFinal * 1.467 * obj.BrakeBuildUpSec;
//Console.WriteLine(brakeBuildUpFt);
double SBD = Math.Round(reactionDist + runwayAccelFt + propulsionRemFt + brakeBuildUpFt + negGradeAdjBrakeDist + obj.OverhangDist, 1);
bool isSafe = SBD < availStopDist;
if (!isSafe)
{
obj.IsSafe = false;
}
else
{
obj.IsSafe = true;
}
obj.SafeBreakingDistanceRequired = availStopDist;
return SBD;
}
public static void removeFromDatabase(DatabaseConnection conn, Query q, TrackSegment obj)
{
MySqlCommand cmd = new MySqlCommand();
cmd.CommandText =
@"Delete from track_segments (trackCircuit, brakeLocation, targetLocation, worst_case_grade_during_stop, max_entry_speed, overSpeed, vehicleAccel, reactionTime, brakeRate, runwayAccel, propulsion, build_up_brake, overhang) VALUES (@trackCircuit, @brakeLocation, @targetLocation, @worst_case_grade_during_stop, @max_entry_speed, @overSpeed, @vehicleAccel, @reactionTime, @brakeRate, @runwayAccel, @propulsion, @build_up_brake, @overhang)";
cmd.Parameters.AddWithValue("@trackCircuit", obj.TrackCircuit);
cmd.Parameters.AddWithValue("@brakeLocation", obj.StartPoint);
cmd.Parameters.AddWithValue("@targetLocation", obj.EndPoint);
cmd.Parameters.AddWithValue("@worst_case_grade_during_stop", obj.GradeWorst);
cmd.Parameters.AddWithValue("@max_entry_speed", obj.SpeedMax);
cmd.Parameters.AddWithValue("@overSpeed", obj.OverSpeed);
cmd.Parameters.AddWithValue("@vehicleAccel", obj.VehicleAccel);
cmd.Parameters.AddWithValue("@reactionTime", obj.ReactionTime);
cmd.Parameters.AddWithValue("@brakeRate", obj.BrakeRate);
cmd.Parameters.AddWithValue("@runwayAccel", obj.RunwayAccelSec);
cmd.Parameters.AddWithValue("@propulsion", obj.PropulsionRemSec);
cmd.Parameters.AddWithValue("@build_up_brake", obj.BrakeBuildUpSec);
cmd.Parameters.AddWithValue("@overhang", obj.OverhangDist);
cmd.Connection = conn.getConnection();
cmd.ExecuteNonQuery();
}
/// <summary>
/// Draws the track segment to the screen
/// </summary>
/// <param name="segment">The track segment to draw</param>
/// <param name="i">The Y off set for the track segment</param>
private void DrawTrackSegment(TrackSegment segment, int i)
{
if (!segment.IsSafe)
{
GL.Color3(Color.Red);
}
else
{
GL.Color3(Color.Blue);
}
DrawLine(segment.BrakeLocation, i * TRACKOFFSET, segment.TargetLocation, i * TRACKOFFSET);
DrawLine(segment.BrakeLocation, i * TRACKOFFSET + ENDTRACKSIZE, segment.BrakeLocation, i * TRACKOFFSET - ENDTRACKSIZE);
DrawLine(segment.TargetLocation, i * TRACKOFFSET + ENDTRACKSIZE, segment.TargetLocation, i * TRACKOFFSET - ENDTRACKSIZE);
}
/// <summary>
///
/// </summary>
/// <param name="worksheet"></param>
public void FillTrack()
{
ProgressBoxForm progressBox = new ProgressBoxForm();
progressBox.Show();
try
{
ExcelSheet sheet = new ExcelSheet();
using (StreamReader file = new StreamReader(mFilename))
{
string line = null;
string[] row;
string tempDir = null;
string tempMove = null;
// Get to the data
while (line == null || line.Split(',')[1] != "Track")
{
line = file.ReadLine();
}
// Parse the data
while ((line = file.ReadLine()) != null)
{
row = line.Split(',');
// If this cell does not have data then there is no more data.
if (row[4] == "")
{
break;
}
if (row[2] != "")
{
tempDir = row[2];
}
if(row[3] != "")
{
tempMove = row[3];
}
/*
* Column Name | Column Number
* Direction | 1
* Move | 2
* Track | 3
* Circuit | 4
* Brake Location | 5
* Target Location | 6
* Worst Grade | 8
* Entry Speed | 9
* Overspeed | 10
* Acceleration | 12
* Reaction Time | 14
* Brake Rate | 16
* Runaway Accel | 19
* Propulsion Remov | 21
* Brake Build up | 23
* Overhang Dist | 25
*/
TrackSegment curRow = new TrackSegment(
tempDir,
tempMove,
row[4], // Circuit
Convert.ToInt32(row[5]), // Brake Location
Convert.ToInt32(row[6]), // Target Location
Convert.ToDouble(row[7]), // Worst Grade
Convert.ToDouble(row[8]), // Entry Speed
Convert.ToDouble(row[9]), // Overspeed
Convert.ToDouble(row[10]), // Acceleration
Convert.ToDouble(row[11]), // Reaction Time
Convert.ToDouble(row[12]), // Brake Rate
Convert.ToDouble(row[13]), // Runaway Accel
Convert.ToDouble(row[14]), // Propulsion Removal
Convert.ToInt32(row[15]), // Brake Build Up
Convert.ToInt32(row[16])); // Overhand Distance
TrackLayout.Track.Add(curRow);
progressBox.progressBar1.PerformStep();
}
}
}
catch (Exception e)
{
MessageBox.Show("Error Loading File: " + e.ToString());
}
progressBox.Close();
}
/// <summary>
///
/// </summary>
public static void LoadFromDatabase()
{
TrackLayout.Track.Clear();
LoadFromDatabaseForm databaseForm = new LoadFromDatabaseForm();
if (databaseForm.ShowDialog() == System.Windows.Forms.DialogResult.OK)
{
try
{
// TODO: Set up the database
Database.DatabaseConnection conn = new Database.DatabaseConnection(databaseForm.ServerNameBox.Text,
Convert.ToUInt32(databaseForm.PortBox.Text), databaseForm.DatabaseNameBox.Text,
databaseForm.UserNameBox.Text, databaseForm.PasswordBox.Text);
Query q = new Query();
List<string> list;
String p = Prompt.ShowDialog("Enter A Track Circuit\n\n Type 'ALL' to Display Every Track Circuit", "Track Information Needed!");
if (p.Trim().ToUpper() == "ALL")
{
list = q.runQuery(conn, "SELECT * FROM track_segments");
}
else
{
list = q.runQuery(conn, "SELECT * FROM track_segments where trackCircuit = '" + p.Trim() + "'");
}
int numRows = list.Count / 15;
TrackSegment ts;
for (int i = 0; i < numRows; i++)
{
var offset = 15*i;
bool exists = false;
ts = new TrackSegment(list[offset + 0].ToString(), list[offset + 1].ToString(), list[offset + 2].ToString(), Convert.ToInt32(list[offset + 3].ToString()), Convert.ToInt32(list[offset + 4].ToString()), Convert.ToDouble(list[offset + 5].ToString()),
Convert.ToDouble(list[offset + 6].ToString()), Convert.ToDouble(list[offset + 7].ToString()), Convert.ToDouble(list[offset + 8].ToString()), Convert.ToDouble(list[offset + 9].ToString()),
Convert.ToDouble(list[offset + 10].ToString()), Convert.ToDouble(list[offset + 11].ToString()), Convert.ToDouble(list[offset + 12].ToString()), Convert.ToInt32(list[offset + 13].ToString()),
Convert.ToInt32(list[offset + 14].ToString()));
foreach(TrackSegment segment in TrackLayout.Track)
{
if (ts.IsSame(segment))
{
exists = true;
}
}
if(!exists)
{
TrackLayout.Track.Add(ts);
}
}
}
catch (Exception ex)
{
LogManager.Logger.Log(ex);
}
}
}
public bool IsSame(TrackSegment ts)
{
return (this.BrakeBuildUpSec == ts.BrakeBuildUpSec) && (this.BrakeLocation == ts.BrakeLocation)
&& (this.BrakeRate == ts.BrakeRate) && (this.Direction == ts.Direction) && (this.GradeWorst == ts.GradeWorst)
&& (this.Move == ts.Move) && (this.OverhangDist == ts.OverhangDist) && (this.OverSpeed == ts.OverSpeed)
&& (this.PropulsionRemSec == ts.PropulsionRemSec) && (this.ReactionTime == ts.ReactionTime)
&& (this.RunwayAccelSec == ts.RunwayAccelSec) && (this.SpeedMax == ts.SpeedMax) && (this.TargetLocation == ts.TargetLocation)
&& (this.TrackCircuit == ts.TrackCircuit) && (this.VehicleAccel == ts.VehicleAccel);
}
