public override void UpdateVisual()
{
var coordinateSystem = Drawing.CoordinateSystem;
XAxisLabels.AdjustToNewRange(coordinateSystem.GetVisibleXPoints(), true);
YAxisLabels.AdjustToNewRange(coordinateSystem.GetVisibleYPoints()
.Where(y => y.Abs() > 0.001), false);
}
private void SetXAxis(OpenFlashChart.OpenFlashChart chart, List <string> labels)
{
XAxisLabels xLabels = new XAxisLabels();
xLabels.Values = labels;
xLabels.Vertical = true;
xLabels.Color = "#000000";
XAxis x = new XAxis();
x.Colour = "#000000";
x.Labels = xLabels;
x.GridColour = "#ffffff";
chart.X_Axis = x;
}
/// <summary>
/// Refresh the graph contents
/// </summary>
public void Refresh()
{
Children.Clear();
double width = ActualWidth;
double height = ActualHeight;
if (Data != null && Data.Count > 0 && height > 0 && width > 0)
{
// Calculate transform:
Interval xRange, yRange;
if (FlipXY)
{
xRange = Data.ValueRange.Include(0);
yRange = Data.KeyRange.Include(0);
}
else
{
yRange = Data.ValueRange.Include(0);
xRange = Data.KeyRange.Include(0);
}
if (xRange.IsValid && yRange.IsValid)
{
//Extend range to include any axis label presets:
if (YAxisLabels != null)
{
yRange = yRange.Union(YAxisLabels.KeyRange());
}
if (XAxisLabels != null)
{
xRange = xRange.Union(XAxisLabels.KeyRange());
}
// Draw grid:
var xAxisLabels = XAxisLabels;
var yAxisLabels = YAxisLabels;
if (xAxisLabels == null)
{
xAxisLabels = GenerateAxisLabels(xRange, XAxisLabelSuffix);
}
if (yAxisLabels == null)
{
yAxisLabels = GenerateAxisLabels(yRange, YAxisLabelSuffix);
}
// Y-axis labels:
if (xAxisLabels != null)
{
foreach (KeyValuePair <double, string> kvp in xAxisLabels)
{
double x = xRange.ParameterOf(kvp.Key) * width;
Line gridLine = new Line();
gridLine.X1 = x;
gridLine.X2 = x;
gridLine.Y1 = 0;
gridLine.Y2 = height;
gridLine.Stroke = Brushes.Black;
gridLine.Opacity = 0.25;
Children.Add(gridLine);
TextBlock tB = new TextBlock();
tB.Text = kvp.Value;
tB.TextAlignment = TextAlignment.Right;
FormattedText fT = new FormattedText(kvp.Value, CultureInfo.CurrentCulture, tB.FlowDirection,
new Typeface(tB.FontFamily, tB.FontStyle, tB.FontWeight, tB.FontStretch), tB.FontSize, tB.Foreground);
Children.Add(tB);
Canvas.SetLeft(tB, x - fT.Width / 2);
Canvas.SetTop(tB, (1 - yRange.ParameterOf(0)) * height + 5);
}
}
// Y-axis labels:
if (yAxisLabels != null)
{
foreach (KeyValuePair <double, string> kvp in yAxisLabels)
{
double y = (1 - yRange.ParameterOf(kvp.Key)) * height;
Line gridLine = new Line();
gridLine.X1 = 0;
gridLine.X2 = width;
gridLine.Y1 = y;
gridLine.Y2 = y;
gridLine.Stroke = Brushes.Black;
gridLine.Opacity = 0.25;
Children.Add(gridLine);
TextBlock tB = new TextBlock();
tB.Text = kvp.Value;
tB.TextAlignment = TextAlignment.Right;
Children.Add(tB);
Canvas.SetRight(tB, (1 - xRange.ParameterOf(0)) * width + 5);
Canvas.SetTop(tB, y - tB.FontSize / 2);
}
}
// X-axis:
Line xAxis = new Line();
xAxis.X1 = 0;
xAxis.X2 = width;
xAxis.Y1 = (1 - yRange.ParameterOf(0)) * height;
xAxis.Y2 = xAxis.Y1;
xAxis.Stroke = Brushes.Black;
xAxis.StrokeThickness = 2.0;
Children.Add(xAxis);
// Y-axis:
Line yAxis = new Line();
yAxis.X1 = xRange.ParameterOf(0) * width;
yAxis.X2 = yAxis.X1;
yAxis.Y1 = 0;
yAxis.Y2 = height;
yAxis.Stroke = Brushes.Black;
yAxis.StrokeThickness = 2.0;
Children.Add(yAxis);
// Draw graph lines:
for (int i = 0; i < Data.Count; i++)
{
GraphLineData data = Data[i];
Colour col = Colour.FromHSV(i * 360.0 / Data.Count, 255, 255);
Polyline pLine = new Polyline();
pLine.Stroke = new SolidColorBrush(ToWPF.Convert(col));
//pLine.StrokeThickness = 1.0;
pLine.ToolTip = data.Name;
ToolTipService.SetInitialShowDelay(pLine, 0);
ToolTipService.SetShowDuration(pLine, 60000);
//Generate points:
PointCollection points = new PointCollection();
var graph = data.Data;
foreach (KeyValuePair <double, Interval> kvp in graph)
{
points.Add(ToPoint(kvp.Key, kvp.Value.End, xRange, yRange));
}
if (graph.IsEnvelope)
{
foreach (KeyValuePair <double, Interval> kvp in graph.Reverse())
{
points.Add(ToPoint(kvp.Key, kvp.Value.Start, xRange, yRange));
}
}
pLine.Points = points;
Children.Add(pLine);
}
}
}
}
public override void OnRemovingFromCanvas(Canvas leavingContainer)
{
XAxisLabels.OnRemovingFromCanvas(leavingContainer);
YAxisLabels.OnRemovingFromCanvas(leavingContainer);
}
public override void OnAddingToCanvas(Canvas newContainer)
{
XAxisLabels.OnAddingToCanvas(newContainer);
YAxisLabels.OnAddingToCanvas(newContainer);
}
OpenFlashChart.OpenFlashChart BuildChart()
{
OpenFlashChart.OpenFlashChart chart = new OpenFlashChart.OpenFlashChart();
List <double> data1 = new List <double>();
int maxDot = 0;
for (double i = 0; i < Days; i++)
{
//data1.Add(rand.Next(30));
DateTime startTime = BeginDate.AddDays(i);
DateTime endTime = startTime.AddDays(1);
int pv = PageVisitorHelper.GetVisitorCountByTime(startTime, endTime);
if (pv > maxDot)
{
maxDot = pv;
}
data1.Add(pv);
}
OpenFlashChart.Area area = new Area();
area.Values = data1;
area.HaloSize = 0;
area.Width = 4;
//area.DotSize = 2;
area.FontSize = 12;
area.DotStyleType.Tip = "#x_label#<br>访客数：#val#";
//area.DotStyleType.Type = DotType.ANCHOR;
area.DotStyleType.Type = DotType.DOT;
area.DotStyleType.Colour = "#0077CC";
area.Tooltip = "提示：#val#";
area.Colour = "#0077CC";
area.FillColor = "#E6F2FA";
area.FillAlpha = .5;
Animation animation = new Animation();
animation.Cascade = 1;
animation.Delay = 0.5;
animation.Type = "pop-up";
area.OnShowAnimation = animation;
chart.AddElement(area);
chart.Y_Legend = new Legend("");
chart.Title = new Title("");
chart.Tooltip = new ToolTip("#x_label#<br>访客数：#val#");
chart.Tooltip.MouseStyle = ToolTipStyle.FOLLOW;
chart.Tooltip.Shadow = false;
chart.Tooltip.BackgroundColor = "#ffffff";
chart.Tooltip.Rounded = 3;
chart.Tooltip.Stroke = 2;
chart.Tooltip.Colour = "#000000";
chart.Tooltip.BodyStyle = "color: #000000; font-weight: normal; font-size: 11;";
maxDot = (int)(maxDot * 1.3);
chart.Y_Axis.SetRange(0, maxDot, maxDot / 3);
chart.X_Axis.GridColour = "#eeeeee";
chart.Y_Axis.GridColour = "#eeeeee";
chart.X_Axis.Colour = "#333333";
chart.Y_Axis.Colour = "#333333";
chart.Bgcolor = "#fbfbfb";
List <string> data2 = new List <string>();
for (int i = 0; i < Days; i++)
{
data2.Add(BeginDate.AddDays(i).ToString("yyyy年MM月dd日"));
}
XAxis x = new XAxis();
x.GridColour = "#eeeeee";
x.Stroke = 1;
x.Steps = Steps;
XAxisLabels xlabels = new XAxisLabels();
xlabels.Steps = Steps;
xlabels.Vertical = false;
xlabels.SetLabels(data2);
x.Labels = xlabels;
chart.X_Axis = x;
chart.Tooltip = new ToolTip("全局提示：#val#");
chart.Tooltip.Shadow = true;
chart.Tooltip.Colour = "#e43456";
chart.Tooltip.MouseStyle = ToolTipStyle.CLOSEST;
return(chart);
}
