public Task AnimateAsync()
{
var easingFunction = (IEasingFunction)Activator.CreateInstance(this.SelectedEasingFunction);
var animationSettings = new AnimationSettings
{
EasingFunction = easingFunction,
Duration = TimeSpan.FromMilliseconds(this.AnimationDuration),
FrameDuration = TimeSpan.FromMilliseconds(this.AnimationFrameDuration),
Delay = TimeSpan.FromMilliseconds(this.AnimationDelay),
HorizontalPercentage = this.HorizontalPercentage,
VerticalPercentage = this.VerticalPercentage
};
return(this.AnimateAsync(animationSettings));
}
public static async Task AnimateSeriesAsync(
this PlotModel plotModel,
LineSeries series,
AnimationSettings settings)
{
var points = series.GetAnimatablePoints();
if (points.Count == 0)
{
return;
}
var duration = settings.Duration;
if (duration == default(TimeSpan))
{
duration = TimeSpan.FromMilliseconds(DefaultAnimationDuration);
}
var easingFunction = settings.EasingFunction;
if (easingFunction == null)
{
easingFunction = DefaultEasingFunction;
}
var animationFrameDurationInMs = (int)settings.FrameDuration.TotalMilliseconds;
var minimumValue = settings.MinimumValue;
var animationFrames = new List <AnimationFrame>();
var horizontalDuration = duration.TotalMilliseconds / 100 * settings.HorizontalPercentage;
var verticalDuration = duration.TotalMilliseconds / 100 * settings.VerticalPercentage;
var animationFrameCount = (int)(duration.TotalMilliseconds / animationFrameDurationInMs);
var animationFrameDuration = TimeSpan.FromMilliseconds(animationFrameDurationInMs);
if (!minimumValue.HasValue)
{
minimumValue = 0d;
var defaultYAxis = plotModel.DefaultYAxis;
if (defaultYAxis != null)
{
if (defaultYAxis.Minimum > 0d)
{
minimumValue = defaultYAxis.Minimum;
}
}
}
var minX = (from point in points orderby point.X select point.X).Min();
var maxX = (from point in points orderby point.X select point.X).Max();
var deltaX = maxX - minX;
for (var i = 0; i < animationFrameCount; i++)
{
var animationFrame = new AnimationFrame
{
Duration = animationFrameDuration
};
var currentTime = animationFrameDurationInMs * i;
var percentage = i * 100d / animationFrameCount;
var horizontalPercentage = currentTime * 100d / horizontalDuration;
if (horizontalPercentage > 100d)
{
horizontalPercentage = 100d;
}
var currentDeltaX = deltaX / 100d * horizontalPercentage;
var currentX = minX + currentDeltaX;
// Get the last visible point. It should not be based on the index (can be really different), but on the X position
// since we want to draw a smooth animation
var lastVisibleHorizontalPoint = 0;
for (int j = 0; j < points.Count; j++)
{
if (points[j].FinalX > currentX)
{
break;
}
lastVisibleHorizontalPoint = j;
}
for (var j = 0; j < points.Count; j++)
{
var point = points[j];
var isVisible = true;
var y = point.FinalY;
var x = point.FinalX;
var nextPointIndex = lastVisibleHorizontalPoint + 1;
if (j > nextPointIndex)
{
isVisible = false;
}
if (j >= nextPointIndex)
{
// Calculate the position the y line is in currently (based on x1 and x2)
var previousPoint = points[lastVisibleHorizontalPoint];
var nextPoint = points[nextPointIndex];
var previousX = previousPoint.FinalX;
var nextX = nextPoint.FinalX;
var totalDeltaX = nextX - previousX;
var subDeltaX = currentX - previousX;
var subPercentage = (subDeltaX * 100) / totalDeltaX;
var previousY = previousPoint.FinalY;
var nextY = nextPoint.FinalY;
var totalDeltaY = nextY - previousY;
var subDeltaY = totalDeltaY / 100 * subPercentage;
y = previousY + subDeltaY;
x = currentX;
}
// Calculate possible ease functions
if (j < nextPointIndex)
{
// We know how long an y animation takes. We only have to calculate if this start time of this x animation
// is longer than verticalDuration ago
var localDeltaX = point.FinalX - minX;
var localPercentageX = localDeltaX * 100d / deltaX;
var startTime = horizontalDuration / 100 * localPercentageX;
var endTime = startTime + verticalDuration;
if (endTime > currentTime)
{
var timeDeltaTotal = endTime - startTime;
var timeDeltaCurrent = currentTime - startTime;
var easePercentage = timeDeltaCurrent * 100d / timeDeltaTotal;
// This bar is part of the current animation, calculate the Y relative to 30 % of the time based on the current index
// Calculate the % that offset is based on totalTimeDelta
// Calculate point to animate from
var maxY = point.FinalY;
var minY = minimumValue.Value;
var deltaY = maxY - minY;
// We need to ease against percentage (between 0 and 1)
var ease = easingFunction.Ease(easePercentage / 100);
var currentDeltaY = deltaY * ease;
y = minY + currentDeltaY;
}
}
animationFrame.AnimationPoints.Add(new AnimationPoint
{
X = x,
Y = y,
IsVisible = isVisible
});
}
animationFrames.Add(animationFrame);
}
animationFrames.InsertDelayAnimationFrame(settings.Delay);
await plotModel.AnimateSeriesAsync(series, animationFrames);
}
public static async Task AnimateSeriesAsync(
this PlotModel plotModel,
LinearBarSeries series,
AnimationSettings settings)
{
var points = series.GetAnimatablePoints();
if (points.Count == 0)
{
return;
}
var duration = settings.Duration;
if (duration == default(TimeSpan))
{
duration = TimeSpan.FromMilliseconds(DefaultAnimationDuration);
}
var easingFunction = settings.EasingFunction;
if (easingFunction == null)
{
easingFunction = DefaultEasingFunction;
}
var animationFrameDurationInMs = (int)settings.FrameDuration.TotalMilliseconds;
var minimumValue = settings.MinimumValue;
var animationFrames = new List <AnimationFrame>();
// Animation assumptions:
//
// - Total duration: 300ms (in this example)
// - At least animate each horizontal value separately
// - First animate from left => right (70 % of the time)
// - Second animate from center => end (30 % of the time)
//
// | ^
// | |
// | ___ |
// | | | | 30 % of time
// | ___ | | | 90 ms
// | | | | | |
// | | | ___ | | |
// | | | | | | | |
// |___|_|___|_|___|_|_____________________________ ^
//
// <---------------- 70 % of time ---------------->
// (210 ms)
var horizontalDuration = duration.TotalMilliseconds / 100 * settings.HorizontalPercentage;
var verticalDuration = duration.TotalMilliseconds / 100 * settings.VerticalPercentage;
var animationFrameCount = (int)(duration.TotalMilliseconds / animationFrameDurationInMs);
var animationFrameDuration = TimeSpan.FromMilliseconds(animationFrameDurationInMs);
if (!minimumValue.HasValue)
{
minimumValue = 0d;
var defaultYAxis = plotModel.DefaultYAxis;
if (defaultYAxis != null)
{
if (defaultYAxis.Minimum > 0d)
{
minimumValue = defaultYAxis.Minimum;
}
}
}
var minX = (from point in points orderby point.X select point.X).Min();
var maxX = (from point in points orderby point.X select point.X).Max();
var deltaX = maxX - minX;
for (var i = 0; i < animationFrameCount; i++)
{
var animationFrame = new AnimationFrame
{
Duration = animationFrameDuration
};
var currentTime = animationFrameDurationInMs * i;
var percentage = i * 100d / animationFrameCount;
var horizontalPercentage = currentTime * 100d / horizontalDuration;
if (horizontalPercentage > 100d)
{
horizontalPercentage = 100d;
}
var currentDeltaX = deltaX / 100d * horizontalPercentage;
var currentX = minX + currentDeltaX;
// Get the last visible point. It should not be based on the index (can be really different), but on the X position
// since we want to draw a smooth animation
var lastVisibleHorizontalPoint = 0;
for (int j = 0; j < points.Count; j++)
{
var x = points[j].FinalX;
if (x > currentX)
{
break;
}
lastVisibleHorizontalPoint = j;
}
for (var j = 0; j < points.Count; j++)
{
var point = points[j];
var isVisible = false;
var x = point.FinalX;
var y = 0d;
if (j <= lastVisibleHorizontalPoint)
{
isVisible = true;
y = point.FinalY;
// We know how long an y animation takes. We only have to calculate if this start time of this x animation
// is longer than verticalDuration ago
var localDeltaX = point.FinalX - minX;
var localPercentageX = localDeltaX * 100d / deltaX;
var startTime = horizontalDuration / 100 * localPercentageX;
var endTime = startTime + verticalDuration;
if (endTime > currentTime)
{
var timeDeltaTotal = endTime - startTime;
var timeDeltaCurrent = currentTime - startTime;
var subPercentage = timeDeltaCurrent * 100d / timeDeltaTotal;
// This bar is part of the current animation, calculate the Y relative to 30 % of the time based on the current index
// Calculate the % that offset is based on totalTimeDelta
// Calculate point to animate from
var maxY = point.FinalY;
var minY = minimumValue.Value;
var deltaY = maxY - minY;
// We need to ease against percentage (between 0 and 1)
var ease = easingFunction.Ease(subPercentage / 100);
var currentDeltaY = deltaY * ease;
y = minY + currentDeltaY;
}
}
animationFrame.AnimationPoints.Add(new AnimationPoint
{
IsVisible = isVisible,
X = x,
Y = y
});
}
animationFrames.Add(animationFrame);
}
animationFrames.InsertDelayAnimationFrame(settings.Delay);
await plotModel.AnimateSeriesAsync(series, animationFrames);
}
public abstract Task AnimateAsync(AnimationSettings animationSettings);