public GraphicValues(ISensor sensor, GraphicValues Prev = null)
{
if (sensor == null || sensor.Value == null || sensor.Max == null || sensor.Min == null || sensor.Hardware == null)
{
return;
}
Sensor = sensor;
SensorType = sensor.SensorType;
CurrentValue = (float)Math.Round(sensor.Value.Value, 2);
Max = (float)Math.Round(sensor.Max.Value, 2);
//Min = (float)Math.Round(sensor.Min.Value, 2);
Min = 0;
HardName = sensor.Name;
if (Prev != null)
{
if (Prev.PrevValues.Count > MaxGraphValues)
{
Prev.PrevValues.RemoveAt(0);
}
PrevValues = Prev.PrevValues;
PrevValues.Add(Prev.CurrentValue);
Max = PrevValues.Max();
//Min = PrevValues.Min();
}
else
{
PrevValues = new List <float> {
};
PrevValues.Add(CurrentValue);
}
Points = GetPoints(MaxGraphPixels);
GetUnitType();
}
public PointCollection GetPoints(int MaxPixelSpan)
{
if (PrevValues == null)
{
return(null);
}
if (Max == Min)
{
return(null);
}
var k = (Max - Min) / MaxPixelSpan;
var Points = PrevValues.Select((x, index) => new Point(index * 10, (MaxPixelSpan - ((x - Min) / k)))).ToList();
var pc = new PointCollection(Points);
pc.Freeze();
return(pc);
}
