public void ClickButton(object sender, RoutedEventArgs e)
{
ChartDataContainer container = new ChartDataContainer();
container.Data = new List<double>() {20, 33, 115 , 85, 65 };
container.DataCaptions = new List<string>() {"1","2", "3", "4", "5"};
container.MaxSize = new Point(700, 300);
container.Offset = new Point(10, 150);
container.ChartElementColor = Colors.SlateBlue;
CylinderChartPainter.DrawChart(container, this.Canvas1);
}
private void DrawChart()
{
List<double> temparatures = new List<double>();
List<string> captions = new List<string>();
foreach (WeatherDataItem item in weatherData.WeatherDataItems)
{
temparatures.Add(item.TemparatureCelsius);
captions.Add(string.Format("{0}\n{1} C", item.Date.ToShortDateString(), item.TemparatureCelsius.ToString()));
}
ChartDataContainer container = new ChartDataContainer();
container.Data = temparatures;
container.DataCaptions = captions;
container.MaxSize = new Point(800, 300);
container.XAxisText = "Date / Temparature (Celsius)";
container.YAxisText = "";
container.Offset = new Point(20, 20);
container.ChartElementColor = Colors.BurlyWood;
CylinderChartPainter.DrawChart(container, weatherChartCanvas);
}
public static void DrawChart(ChartDataContainer container, System.Windows.Controls.Canvas cnv)
{
//Draw the X-Axis line of the chart
Line xLine = new Line();
xLine.Stroke = Brushes.Black;
xLine.X1 = container.Offset.X;
xLine.X2 = container.Offset.X + container.MaxSize.X;
xLine.Y1 = container.Offset.Y + container.MaxSize.Y;
xLine.Y2 = container.Offset.Y + container.MaxSize.Y;
xLine.StrokeThickness = 1;
xLine.SnapsToDevicePixels = true;
cnv.Children.Add(xLine);
//Draw the Y-Axis Line of the chart.
Line yLine = new Line();
yLine.Stroke = Brushes.Black;
yLine.X1 = container.Offset.X;
yLine.Y1 = container.Offset.Y;
yLine.X2 = container.Offset.X;
yLine.Y2 = xLine.Y2;
yLine.StrokeThickness = 1;
yLine.SnapsToDevicePixels = true;
cnv.Children.Add(yLine);
//Add Y-Axis description text to the chart
TextBlock yAxisDescriptionBlock = new TextBlock();
yAxisDescriptionBlock.Text = container.YAxisText;
Canvas.SetLeft(yAxisDescriptionBlock, yLine.X1 + 5);
Canvas.SetRight(yAxisDescriptionBlock, xLine.X2);
Canvas.SetTop(yAxisDescriptionBlock, container.Offset.Y);
cnv.Children.Add(yAxisDescriptionBlock);
//Add X-Axis description text to the chart
TextBlock xAxisDescriptionBlock = new TextBlock();
xAxisDescriptionBlock.Text = container.XAxisText;
Canvas.SetTop(xAxisDescriptionBlock, yLine.Y2 - 12);
Canvas.SetLeft(xAxisDescriptionBlock, xLine.X2 + 3);
Canvas.SetRight(xAxisDescriptionBlock, xLine.X2 + container.YAxisText.Length);
cnv.Children.Add(xAxisDescriptionBlock);
//Add Cylinder graphics
double offsetX = container.Offset.X + 25;//Offset on the X-Axis
double scale = container.MaxSize.Y / container.Data.Max(); //Scaling value - Needed to make the chart
//more readable
double radius = (container.MaxSize.X / (container.Data.Count + 2.5)) / 2; //Radius of a single chart element
// = diameter/ 2
CylinderPainter3D cylinderPainter = new CylinderPainter3D();
cylinderPainter.CylinderRadius = radius; // Set the radius of the cylinder to be drawn
cylinderPainter.FillingColor = container.ChartElementColor; // Set the Cylinder's color
foreach(double dataelement in container.Data)
{
double topY = (container.Offset.Y + (container.MaxSize.Y - (dataelement*scale))) - 26; //Calculate Y-Offset
cylinderPainter.CylinderHeight = dataelement * scale; //Apply scale and set height
cylinderPainter.DrawCylinder(cnv, offsetX, topY); //Draw the Cylinder
offsetX += cylinderPainter.CylinderRadius * 2.5; //Increase offset
}
if (container.DataCaptions.Count > 0)//If available, add captions to cylinder graphics
{
offsetX = container.Offset.X + 25; //Offset on the X-Axis is reset because captioning is started from the left
short zipperOffset = 10;
foreach (string caption in container.DataCaptions)
{
zipperOffset *= (-1);
//Add line to associate a caption with a single chart element
Line captionLine = new Line();
captionLine.Stroke = Brushes.Black;
captionLine.X1 = offsetX;
captionLine.X2 = offsetX;
captionLine.Y1 = yLine.Y2;
captionLine.Y2 = yLine.Y2 + 40 + zipperOffset;
cnv.Children.Add(captionLine);
//Add chart element description text block
TextBlock chartElementDescriptionTextBlock = new TextBlock();
chartElementDescriptionTextBlock.Text = caption;
Canvas.SetTop(chartElementDescriptionTextBlock, yLine.Y2 + 47 + zipperOffset);
Canvas.SetLeft(chartElementDescriptionTextBlock, offsetX);
offsetX += radius * 2.5;
Canvas.SetRight(chartElementDescriptionTextBlock, offsetX);
cnv.Children.Add(chartElementDescriptionTextBlock);
}
}
}
