private void PointAway(out double xMax, out double yMax, out double xMin, out double yMin)
{
xMax = XRange.Max();
yMax = YValues.Max();
xMin = XRange.Min();
yMin = YValues.Min();
}
private void CalcGridSize()
{
var xmax = XValues.Max();
var ymax = YValues.Max();
var xmin = XValues.Min();
var ymin = YValues.Min();
// Calculate axis range
var xrange = Math.Abs(xmax - xmin);
var yrange = Math.Abs(ymax - ymin);
if (xrange > yrange)
{
// Determine spacing with nx points grid
Nx = 200;
Dx = xrange / (Nx - 1);
// Determine number of y grid so that the space is equal
Ny = Convert.ToInt32(Math.Ceiling(yrange / Dx));
Dy = yrange / (Ny - 1);
}
else
{
Ny = 200;
Dy = yrange / (Ny - 1);
Nx = Convert.ToInt32(Math.Ceiling(xrange / Dy));
Dx = xrange / (Nx - 1);
}
}
public void ReadyControl()
{
ChartArea.Children.Clear();
Legend.Children.Clear();
_maxValue = YValues.Max(x => x.Max) > 0 ? CanvasHelper.GetGridLineMax(YValues.Max(x => x.Max)) : 10;
_xLabelsCount = XLabels.Count > 0 ? XLabels.Count : 1;
_helper = new CanvasHelper(new Point(0, 0), new Point(_margin, ChartGridHeight), new Point(_xLabelsCount, _maxValue), new Point(ChartAreaWidth, 0));
DrawBackground();
DrawGridLines();
DrawDataPoint();
DrawXAxis();
DrawYAxis();
DrawLegend();
}
/// <summary>
/// Animates the series.
/// </summary>
internal override void Animate()
{
int i = 0;
// WPF-25124 Animation not working properly when resize the window.
if (this.AnimationStoryboard != null)
{
AnimationStoryboard.Stop();
if (!this.canAnimate)
{
this.ResetAdornmentAnimationState();
return;
}
}
this.AnimationStoryboard = new Storyboard();
foreach (LineSegment3D segment in this.Segments)
{
var dblAnimationKeyFrames = new DoubleAnimationUsingKeyFrames();
var min = YValues.Min();
var keyFrame = new SplineDoubleKeyFrame
{
KeyTime = KeyTime.FromTimeSpan(TimeSpan.FromSeconds(0)),
Value = double.IsNaN(min) ? YValues.Where(e => !double.IsNaN(e)).Min() : min
};
dblAnimationKeyFrames.KeyFrames.Add(keyFrame);
keyFrame = new SplineDoubleKeyFrame
{
KeyTime = KeyTime.FromTimeSpan(AnimationDuration),
Value = YValues.Max()
};
var keySpline = new KeySpline
{
ControlPoint1 = new Point(0.64, 0.84),
ControlPoint2 = new Point(0.67, 0.95)
};
keyFrame.KeySpline = keySpline;
dblAnimationKeyFrames.KeyFrames.Add(keyFrame);
Storyboard.SetTargetProperty(dblAnimationKeyFrames, "LineSegment3D.Y");
dblAnimationKeyFrames.EnableDependentAnimation = true;
Storyboard.SetTarget(dblAnimationKeyFrames, segment);
AnimationStoryboard.Children.Add(dblAnimationKeyFrames);
if (this.AdornmentsInfo != null)
{
double secondsPerPoint = AnimationDuration.TotalSeconds / YValues.Count;
secondsPerPoint *= 2;
foreach (FrameworkElement label in this.AdornmentsInfo.LabelPresenters)
{
DoubleAnimation keyFrames1 = new DoubleAnimation()
{
From = 0.5,
To = 1,
Duration = TimeSpan.FromSeconds(AnimationDuration.TotalSeconds / 2),
BeginTime = TimeSpan.FromSeconds(i * secondsPerPoint)
};
Storyboard.SetTargetProperty(keyFrames1, "(UIElement.Opacity)");
Storyboard.SetTarget(keyFrames1, label);
AnimationStoryboard.Children.Add(keyFrames1);
i++;
}
}
}
AnimationStoryboard.Begin();
}
private void UpdateSample(TimeSpan sampleTime, TimeSpan sampleBackFor)
{
var sampleLimit = DateTimeOffset.Now - sampleBackFor;
XMinimum = sampleLimit.ToUnixTimeMilliseconds();
var values = _history.SelectTimeSampleBackwards(
x => x.Date,
x => x.Balance,
sampleTime,
sampleLimit,
DateTime.Now);
XValues.Clear();
YValues.Clear();
foreach (var(timestamp, balance) in values.Reverse())
{
YValues.Add((double)balance.ToDecimal(MoneyUnit.BTC));
XValues.Add(timestamp.ToUnixTimeMilliseconds());
}
if (YValues.Any())
{
var maxY = YValues.Max();
YLabels = new List <string> {
"0", (maxY / 2).ToString("F2"), maxY.ToString("F2")
};
}
else
{
YLabels = null;
}
if (XValues.Any())
{
var minX = XValues.Min();
var maxX = XValues.Max();
var halfX = minX + ((maxX - minX) / 2);
var range = DateTimeOffset.FromUnixTimeMilliseconds((long)maxX) -
DateTimeOffset.FromUnixTimeMilliseconds((long)minX);
if (range <= TimeSpan.FromDays(1))
{
XLabels = new List <string>
{
DateTimeOffset.FromUnixTimeMilliseconds((long)minX).DateTime.ToString("t"),
DateTimeOffset.FromUnixTimeMilliseconds((long)halfX).DateTime.ToString("t"),
DateTimeOffset.FromUnixTimeMilliseconds((long)maxX).DateTime.ToString("t"),
};
}
else if (range <= TimeSpan.FromDays(7))
{
XLabels = new List <string>
{
DateTimeOffset.FromUnixTimeMilliseconds((long)minX).DateTime.ToString("ddd MMM-d"),
DateTimeOffset.FromUnixTimeMilliseconds((long)halfX).DateTime.ToString("ddd MMM-d"),
DateTimeOffset.FromUnixTimeMilliseconds((long)maxX).DateTime.ToString("ddd MMM-d"),
};
}
else
{
XLabels = new List <string>
{
DateTimeOffset.FromUnixTimeMilliseconds((long)minX).DateTime.ToString("MMM-d"),
DateTimeOffset.FromUnixTimeMilliseconds((long)halfX).DateTime.ToString("MMM-d"),
DateTimeOffset.FromUnixTimeMilliseconds((long)maxX).DateTime.ToString("MMM-d"),
};
}
}
else
{
XLabels = null;
}
}