internal void HandleZoomTooltip(ChartStack stack, Point mouseDownPos, Point pos)
{
Point localStartPos = stack.TransformToDescendant(this).Transform(mouseDownPos);
Point localEndPos = stack.TransformToDescendant(this).Transform(pos);
if (localEndPos.X >= 0 && localEndPos.Y >= 0 && localEndPos.X < this.ActualWidth && localEndPos.Y < this.ActualHeight)
{
int s = FindNearestValue(localStartPos, true);
int e = FindNearestValue(localEndPos, true);
if (s >= 0 && e >= 0)
{
DataValue startData = series.Values[s];
DataValue endData = series.Values[e];
Point tipPosition = this.TransformToDescendant(Graph).Transform(localEndPos);
double microseconds = endData.X - startData.X;
TimeSpan span = TimeSpan.FromMilliseconds((double)microseconds / 1000.0);
double seconds = span.TotalSeconds;
double diff = endData.Y - startData.Y;
double sum = 0;
double count = e - s;
for (int i = s; i <= e; i++)
{
DataValue d = series.Values[i];
sum += d.Y;
}
double average = sum / count;
string msg = string.Format("{0:N3} sec, avg={1:N4}, dist={2:N3}, rate={3:N3}, samples={4:N3}", seconds, average, diff, diff / seconds, e - s);
ShowTip(msg, tipPosition);
}
else
{
HidePointer();
}
}
}
internal void HandleZoomTooltip(ChartStack stack, Point mouseDownPos, Point pos)
{
Point localStartPos = stack.TransformToDescendant(this).Transform(mouseDownPos);
Point localEndPos = stack.TransformToDescendant(this).Transform(pos);
if (localEndPos.X >= 0 && localEndPos.Y >= 0 && localEndPos.X < this.ActualWidth && localEndPos.Y < this.ActualHeight)
{
int s = FindNearestValue(localStartPos, true);
int e = FindNearestValue(localEndPos, true);
if (s >= 0 && e >= 0)
{
DataValue startData = series.Values[s];
DataValue endData = series.Values[e];
Point tipPosition = this.TransformToDescendant(Graph).Transform(localEndPos);
double microseconds = endData.X - startData.X;
TimeSpan span = new TimeSpan((long)microseconds * 10);
double seconds = span.TotalSeconds;
double diff = endData.Y - startData.Y;
string msg = string.Format("{0:N3} sec, dist={1:N3}, rate={2:N3}, samples={3:N3}", seconds, diff, diff / seconds, e - s);
ShowTip(msg, tipPosition);
}
else
{
HidePointer();
}
}
}
internal void HandleZoomTooltip(ChartStack stack, Point mouseDownPos, Point pos)
{
Point localStartPos = stack.TransformToDescendant(this).Transform(mouseDownPos);
Point localEndPos = stack.TransformToDescendant(this).Transform(pos);
if (localEndPos.X >= 0 && localEndPos.Y >= 0 && localEndPos.X < this.ActualWidth && localEndPos.Y < this.ActualHeight)
{
DataValue startData = FindNearestValue(localStartPos, true);
DataValue endData = FindNearestValue(localEndPos, true);
if (startData != null && endData != null)
{
Point tipPosition = this.TransformToDescendant(Graph).Transform(localEndPos);
double microseconds = endData.X - startData.X;
TimeSpan span = new TimeSpan((long)microseconds * 10);
ShowTip(span.ToString(), tipPosition);
}
else
{
HidePointer();
}
}
}
