private void VisualizeGraph(RainData rainData, bool animated = true)
{
List<int> pointValues;
if (rainData == null || rainData.Points == null)
pointValues = new List<int>();
else
pointValues = rainData.Points.Take(25).Select(p => p.AdjustedValue).ToList();
while (pointValues.Count < 25)
pointValues.Add(pointValues.LastOrDefault());
var path = GraphView.Data as PathGeometry;
var graphSize = new Size(GraphContainer.ActualWidth, GraphContainer.ActualHeight);
var step = graphSize.Width / Model.Entries;
Func<int, double> xForIndex = idx => idx == 0 ? -2 : idx * step;
var x = 0;
var max = (graphSize.Height / 12.0 * 11.0) - 10;
var allZeros = pointValues.Take(Model.Entries + 1).All(p => p == 0);
var points = pointValues.Select(v => {
var y = allZeros ? max - 20 : Math.Max(1, max - (v * max / 100));
var p = new Point(xForIndex(x), y);
x++;
return p;
}).ToList();
points.Add(new Point(graphSize.Width + 2, points.Last().Y));
points.Add(new Point(graphSize.Width + 2, graphSize.Height + 2));
PathFigure figure;
var startPoint = new Point(-2.0, graphSize.Height + 2);
if (path == null) {
path = new PathGeometry();
figure = new PathFigure() { StartPoint = startPoint, IsClosed = true };
path.Figures.Add(figure);
foreach (var p in points) {
figure.Segments.Add(new LineSegment() { Point = p });
}
GraphView.Data = path;
}
var entriesAnimated = graphEntries != Model.Entries && graphEntries > 0 && Model.Entries > 0;
if (entriesAnimated)
UpdateEntriesImage();
var ms300 = TimeSpan.FromMilliseconds(entriesAnimated ? 450 / Math.Abs(Model.Entries - graphEntries) : animated ? 300 : 0);
graphEntries = Model.Entries;
var storyboard = new Storyboard() { Duration = ms300 };
figure = path.Figures[0];
var anim = new PointAnimation() { Duration = ms300, To = startPoint, FillBehavior = FillBehavior.HoldEnd, EnableDependentAnimation = true };
Storyboard.SetTarget(anim, figure);
Storyboard.SetTargetProperty(anim, "StartPoint");
storyboard.Children.Add(anim);
for (var i = 0; i < points.Count; ++i) {
anim = new PointAnimation() { Duration = ms300, To = points[i], FillBehavior = FillBehavior.HoldEnd, EnableDependentAnimation = true };
Storyboard.SetTarget(anim, figure.Segments[i]);
Storyboard.SetTargetProperty(anim, "Point");
storyboard.Children.Add(anim);
}
var strokeAnim = new ColorAnimation() { Duration = ms300, FillBehavior = FillBehavior.HoldEnd, To = allZeros ? Colors.Transparent : graphStrokeColor, EnableDependentAnimation = true };
Storyboard.SetTarget(strokeAnim, GraphView.Stroke);
Storyboard.SetTargetProperty(strokeAnim, "Color");
storyboard.Children.Add(strokeAnim);
var fillTopAnim = new ColorAnimation() { Duration = ms300, FillBehavior = FillBehavior.HoldEnd, To = allZeros ? Colors.Black : graphFillFrom, EnableDependentAnimation = true };
Storyboard.SetTarget(fillTopAnim, ((LinearGradientBrush)GraphView.Fill).GradientStops[0]);
Storyboard.SetTargetProperty(fillTopAnim, "Color");
storyboard.Children.Add(fillTopAnim);
storyboard.Begin(() => GraphView.Data = path);
}
private async void VisualizeRain(RainData rainData)
{
if (Model.RainWasUpdated)
Animatable.Mode = AnimatableMode.Forced;
Model.RainWasUpdated = false;
string chanceText;
Color chanceColor;
string mmImage;
string mmText;
var chance = rainData != null ? rainData.ChanceForEntries(Model.Entries) : -1;
if (chance >= 0) {
chanceText = string.Format("{0}%", chance);
chanceColor = Colors.White;
}
else {
chanceText = "?";
chanceColor = Colors.DarkGray;
}
var intensity = 0;
var mm = 0.0;
if (rainData != null) {
mm = rainData.PrecipitationForEntries(Model.Entries);
intensity = rainData.IntensityForEntries(Model.Entries);
}
if (intensity > 0 || mm > 0) {
mm = Math.Max(mm, 0.001);
intensity = ((int)Math.Max(1, Math.Min(1 + intensity / 25.0, 4)));
var format = mm < 0.01 ? "{0:0.000}" : "{0:0.00}";
mmText = Math.Floor(mm) == mm ? string.Format("{0}", (int)mm) : string.Format(format, mm);
mmImage = intensity.ToString(CultureInfo.InvariantCulture);
}
else {
mmText = "0";
mmImage = "0";
}
mmText = mmText + "\nmm";
string night;
if (intensity == 0 && Model.Location != null) {
var solarinfo = SolarInfo.ForDate(Model.Location.Latitude, Model.Location.Longitude, DateTime.Now);
var sunrisen = solarinfo.Sunrise < DateTime.UtcNow && DateTime.UtcNow < solarinfo.Sunset;
night = !sunrisen ? "n" : "d";
}
else {
night = "";
}
mmImage = string.Format("ms-appx:/Assets/intensity{0}{1}.png", mmImage, night);
// we have to jump through silly hoops to have the text change
if (Animatable.Mode == AnimatableMode.Forced) {
Animatable.Mode = AnimatableMode.Disabled;
if (Chance == chanceText) Chance = null;
if (Precipitation == mmText) Precipitation = null;
Animatable.Mode = AnimatableMode.Forced;
}
Chance = chanceText;
Precipitation = mmText;
IntensityImage = new BitmapImage(new Uri(mmImage));
await Task.Delay(500);
Animatable.Mode = AnimatableMode.Enabled;
}