/// <summary>
/// Inserts a channel in the index specified in the plotter
/// </summary>
public void Insert(int index, Channel value)
{
if (value == null || index >= List.Count)
{
return;
}
List.Insert(index, value);
}
/// <summary>
/// Adds a new Channel into the plotter
/// </summary>
public int Add(Channel value)
{
if (value == null)
{
throw new ArgumentNullException();
}
return (List.Add(value));
}
/// <summary>
/// Removes the specified channel from the plotter
/// </summary>
public void Remove(Channel value)
{
if (value == null)
{
return;
}
if (! List.Contains(value))
{
throw new ArgumentException();
}
for (int i = 0;i < List.Count;i ++)
{
if (((Channel) List[i]).YAxisName == value.YAxisName)
{
List.RemoveAt(i);
break;
}
}
}
public Cursor(Channel channel)
{
this.channel = channel;
}
/// <summary>
/// Gets the value corresponding to a particular channel from a pixel. Used when
/// the mouse coordinates need to be tapped to values on the graph
/// </summary>
/// <param name="channel"></param>
/// <param name="XInPixel"></param>
/// <param name="YInPixel"></param>
/// <returns></returns>
private PointF GetValueFromPixel(Channel channel, int XInPixel, int YInPixel)
{
float yAbsolute = (GraphArea.Bottom - YInPixel) / (float) GraphArea.Height;
float yRange = channel.MaximumValue - channel.MinimumValue;
float yInValue = channel.MinimumValue + (yAbsolute * yRange);
int xRangeInMs = (int) (xRange.Duration().Ticks / TimeSpan.TicksPerMillisecond);
float xOffsetPixel = (XInPixel - GraphArea.Left) / (float) GraphArea.Width;
float xInValue = xOffsetPixel * xRangeInMs;
return new PointF(xInValue, yInValue);
}
/// <summary>
/// Converts a value of the channel to the pixels corresponding to the graphArea
/// so that the value could be easily plotted.
/// </summary>
/// <param name="channel"></param>
/// <param name="XinValue"></param>
/// <param name="YinValue"></param>
/// <returns></returns>
private Point GetPixelFromValue(Channel channel, int XinValue, float YinValue)
{
float yRange = channel.MaximumValue - channel.MinimumValue;
float y = (YinValue - channel.MinimumValue) / yRange;
int yInPixel = GraphArea.Bottom - (int) (y * GraphArea.Height);
int xOffsetValue = XinValue;
xOffsetValue -= leftDisplayLimit;
int xRangeInMs = (int) (xRange.Duration().Ticks / TimeSpan.TicksPerMillisecond);
float xOffsetAbs = xOffsetValue / (float) xRangeInMs;
int xInPixel = GraphArea.Left + (int) (xOffsetAbs * GraphArea.Width);
return new Point(xInPixel, yInPixel);
}
/// <summary>
/// Returns the index of a specified channel in the plotter
/// </summary>
public int IndexOf(Channel value)
{
return (List.IndexOf(value));
}
/// <summary>
/// Checks whether a channel is contained in the plotter
/// </summary>
/// <param name="value">Channel to check for</param>
/// <returns>True if it is in the stacked bar graph. False otherwise</returns>
public bool Contains(Channel value)
{
// If value is not of type Channel, this will return false.
return (List.Contains(value));
}
