private void AddItemFactory(FrameworkElementFactory parent, CityDataItem item)
{
var itemFactory = new FrameworkElementFactory(typeof(TextBlock));
itemFactory.SetValue(TextBlock.TextProperty, item.Name.ToUpper());
itemFactory.SetValue(TextBlock.FontSizeProperty, 13.0);
itemFactory.SetValue(TextBlock.HorizontalAlignmentProperty, HorizontalAlignment.Center);
itemFactory.SetValue(TextBlock.ForegroundProperty, new SolidColorBrush(Color.FromRgb(186, 28, 245)));
parent.AppendChild(itemFactory);
}
public void GetTemperatureData(string[] cities, bool monthly = false, int count = 30, bool isFahrenheit = false)
{
_data = new List <CityDataItem>();
var startDate = new DateTime(2019, 1, 1);
foreach (string city in cities)
{
var dataItem = new CityDataItem()
{
Name = city
};
for (int i = 0; i < count; i++)
{
var temp = new Temperature();
DateTime date;
if (monthly)
{
date = startDate.AddMonths(i);
}
else
{
date = startDate.AddDays(i);
}
temp.Date = date;
if (date.Month <= 8)
{
temp.HighTemp = rnd.Next(3 * date.Month, 8 * date.Month);
}
else
{
temp.HighTemp = rnd.Next((13 - date.Month - 2) * date.Month, (13 - date.Month) * date.Month);
}
temp.Precipitation = (date.Month < 4 || date.Month > 8) ? rnd.Next(100, 150) : rnd.Next(150, 200);
if (isFahrenheit)
{
temp.HighTemp = temp.HighTemp * 1.8 + 32;
}
dataItem.Data.Add(temp);
}
_data.Add(dataItem);
}
}
private void SetupAnnotationData(double temp, int itemIndex, int index, CityDataItem item, PointCollection points, bool isMinAnnotation = true)
{
//Create canvas
var canvasFactory = CreateCanvasFactory();
//Polygon
AddPolygonFactory(canvasFactory, points);
//Create Stack Panel Factory
var spFactory = CreateStackPanelFactory();
//Temperature
AddTemperatureFactory(spFactory, temp);
//Text Block Temperature
AddTextBlockFactory(spFactory, isMinAnnotation ? "Minimum Temperature" : "Maximum Temperature");
//Item Name
AddItemFactory(spFactory, item);
canvasFactory.AppendChild(spFactory);
//Create Data Template
var dataTemplate = new DataTemplate
{
VisualTree = canvasFactory
};
dataTemplate.Seal();
var serie = flexChart.Series[index];
var xVals = serie.GetValues(1);
var yVals = serie.GetValues(0);
var locationX = xVals == null?serie.AxisX.Convert(itemIndex) : serie.AxisX.Convert(xVals[itemIndex]);
var locationY = yVals == null?serie.AxisY.Convert(itemIndex) : serie.AxisY.Convert(yVals[itemIndex]);
if (isMinAnnotation)
{
locationX -= 60;
locationY -= 80;
}
else
{
locationX -= 60;
locationY += 20;
}
//Create TemplateAnnotation
var annoTemplate = new Template
{
Style = new ChartStyle()
{
Fill = new SolidColorBrush(Colors.White),
Stroke = new SolidColorBrush(Colors.Gray)
},
Attachment = AnnotationAttachment.Absolute,
SeriesIndex = index,
PointIndex = itemIndex,
AnnoTemplate = dataTemplate,
Location = new Point(locationX, locationY)
};
annotationLayer.Annotations.Add(annoTemplate);
}