public double GetYValueFromXValue(double xValue)
{
if (pointsList == null)
{
return(0);
}
LineGraphPoint p0 = null;
LineGraphPoint p1 = null;
foreach (var points in pointsList)
{
foreach (var p in points)
{
if (p.X <= xValue && (p0 == null || p.X >= p0.X))
{
p0 = p;
}
if (p.X >= xValue && (p1 == null || p.X < p1.X))
{
p1 = p;
}
}
}
if (p0 == null || p1 == null)
{
return(0);
}
if (p0.X == p1.X)
{
return(p0.Y);
}
return(p0.Y + (xValue - p0.X) / (p1.X - p0.X) * (p1.Y - p0.Y));
}
public void Calculate()
{
pointsList = new List<List<LineGraphPoint>>();
DateTime startTime = session.Route.GetTimeFromParameterizedLocation(StartPL);
DateTime endTime = session.Route.GetTimeFromParameterizedLocation(EndPL);
foreach (RouteSegment rs in session.Route.Segments)
{
var points = new List<LineGraphPoint>();
for (var i = 0; i < rs.Waypoints.Count; i++)
{
var previousWaypoint = i > 0 ? rs.Waypoints[i - 1] : null;
var thisWaypoint = rs.Waypoints[i];
var nextWaypoint = i < rs.Waypoints.Count - 1 ? rs.Waypoints[i + 1] : null;
if (thisWaypoint.Time >= startTime && thisWaypoint.Time <= endTime)
{
var p = new LineGraphPoint
{
X = GetXValue(thisWaypoint),
Y = GetYValue(thisWaypoint),
Type = (i == 0 ? LineGraphPointType.Start
: (i == rs.Waypoints.Count - 1 ? LineGraphPointType.End : LineGraphPointType.Intermediate))
};
// handle null values
List<LineGraphPoint> beforePoints = null;
List<LineGraphPoint> afterPoints = null;
if (previousWaypoint != null)
{
if (YAxisAttributeIsMapReadingAttribute && thisWaypoint.MapReadingState == MapReadingState.StartReading)
{
beforePoints = new List<LineGraphPoint>()
{
new LineGraphPoint() {X = p.X, Y = 0, Type = LineGraphPointType.Intermediate},
};
}
else if (!previousWaypoint.Attributes[yAxisAttribute].HasValue && thisWaypoint.Attributes[yAxisAttribute].HasValue)
{
beforePoints = new List<LineGraphPoint>()
{
new LineGraphPoint() {X = (GetXValue(previousWaypoint) + p.X)/2, Y = 0, Type = LineGraphPointType.Intermediate},
new LineGraphPoint() {X = (GetXValue(previousWaypoint) + p.X)/2, Y = p.Y, Type = LineGraphPointType.Intermediate}
};
}
}
if (nextWaypoint != null)
{
if (YAxisAttributeIsMapReadingAttribute && thisWaypoint.MapReadingState == MapReadingState.EndReading)
{
afterPoints = new List<LineGraphPoint>()
{
new LineGraphPoint() {X = p.X, Y = 0, Type = LineGraphPointType.Intermediate},
};
}
else if (!nextWaypoint.Attributes[yAxisAttribute].HasValue && thisWaypoint.Attributes[yAxisAttribute].HasValue)
{
afterPoints = new List<LineGraphPoint>()
{
new LineGraphPoint() {X = (GetXValue(nextWaypoint) + p.X)/2, Y = p.Y, Type = LineGraphPointType.Intermediate},
new LineGraphPoint() {X = (GetXValue(nextWaypoint) + p.X)/2, Y = 0, Type = LineGraphPointType.Intermediate}
};
}
}
if (beforePoints != null) points.AddRange(beforePoints);
points.Add(p);
if (afterPoints != null) points.AddRange(afterPoints);
}
}
if (points.Count > 0)
{
points[0].Type = LineGraphPointType.Start;
points[points.Count - 1].Type = LineGraphPointType.End;
pointsList.Add(points);
}
}
bool first = true;
foreach (var points in pointsList)
{
foreach (var p in points)
{
if (first || p.X < xAxisMinValue) xAxisMinValue = p.X;
if (first || p.X > xAxisMaxValue) xAxisMaxValue = p.X;
//if (first || p.Y < yAxisMinValue) yAxisMinValue = p.Y;
//if (first || p.Y > yAxisMaxValue) yAxisMaxValue = p.Y;
first = false;
}
}
}
public void Calculate()
{
pointsList = new List <List <LineGraphPoint> >();
DateTime startTime = session.Route.GetTimeFromParameterizedLocation(StartPL);
DateTime endTime = session.Route.GetTimeFromParameterizedLocation(EndPL);
foreach (RouteSegment rs in session.Route.Segments)
{
var points = new List <LineGraphPoint>();
for (var i = 0; i < rs.Waypoints.Count; i++)
{
var previousWaypoint = i > 0 ? rs.Waypoints[i - 1] : null;
var thisWaypoint = rs.Waypoints[i];
var nextWaypoint = i < rs.Waypoints.Count - 1 ? rs.Waypoints[i + 1] : null;
if (thisWaypoint.Time >= startTime && thisWaypoint.Time <= endTime)
{
var p = new LineGraphPoint
{
X = GetXValue(thisWaypoint),
Y = GetYValue(thisWaypoint),
Type = (i == 0 ? LineGraphPointType.Start
: (i == rs.Waypoints.Count - 1 ? LineGraphPointType.End : LineGraphPointType.Intermediate))
};
// handle null values
List <LineGraphPoint> beforePoints = null;
List <LineGraphPoint> afterPoints = null;
if (previousWaypoint != null)
{
if (YAxisAttributeIsMapReadingAttribute && thisWaypoint.MapReadingState == MapReadingState.StartReading)
{
beforePoints = new List <LineGraphPoint>()
{
new LineGraphPoint()
{
X = p.X, Y = 0, Type = LineGraphPointType.Intermediate
},
};
}
else if (!previousWaypoint.Attributes[yAxisAttribute].HasValue && thisWaypoint.Attributes[yAxisAttribute].HasValue)
{
beforePoints = new List <LineGraphPoint>()
{
new LineGraphPoint()
{
X = (GetXValue(previousWaypoint) + p.X) / 2, Y = 0, Type = LineGraphPointType.Intermediate
},
new LineGraphPoint()
{
X = (GetXValue(previousWaypoint) + p.X) / 2, Y = p.Y, Type = LineGraphPointType.Intermediate
}
};
}
}
if (nextWaypoint != null)
{
if (YAxisAttributeIsMapReadingAttribute && thisWaypoint.MapReadingState == MapReadingState.EndReading)
{
afterPoints = new List <LineGraphPoint>()
{
new LineGraphPoint()
{
X = p.X, Y = 0, Type = LineGraphPointType.Intermediate
},
};
}
else if (!nextWaypoint.Attributes[yAxisAttribute].HasValue && thisWaypoint.Attributes[yAxisAttribute].HasValue)
{
afterPoints = new List <LineGraphPoint>()
{
new LineGraphPoint()
{
X = (GetXValue(nextWaypoint) + p.X) / 2, Y = p.Y, Type = LineGraphPointType.Intermediate
},
new LineGraphPoint()
{
X = (GetXValue(nextWaypoint) + p.X) / 2, Y = 0, Type = LineGraphPointType.Intermediate
}
};
}
}
if (beforePoints != null)
{
points.AddRange(beforePoints);
}
points.Add(p);
if (afterPoints != null)
{
points.AddRange(afterPoints);
}
}
}
if (points.Count > 0)
{
points[0].Type = LineGraphPointType.Start;
points[points.Count - 1].Type = LineGraphPointType.End;
pointsList.Add(points);
}
}
bool first = true;
foreach (var points in pointsList)
{
foreach (var p in points)
{
if (first || p.X < xAxisMinValue)
{
xAxisMinValue = p.X;
}
if (first || p.X > xAxisMaxValue)
{
xAxisMaxValue = p.X;
}
//if (first || p.Y < yAxisMinValue) yAxisMinValue = p.Y;
//if (first || p.Y > yAxisMaxValue) yAxisMaxValue = p.Y;
first = false;
}
}
}
