/// <summary>
/// 由X轴刻度值计算得到新的坐标集合
/// </summary>
/// <param name="chartControl"></param>
private void GetNewPointDataCollection(ChartControlView chartControl)
{
Console.WriteLine(chartControl.ChartDataCollection);
PointCollection pointDataCollection = new PointCollection(chartControl.ChartDataCollection.Count);
for (int i = 0; i < chartControl.ChartDataCollection.Count; i++)
{
pointDataCollection.Add(new Point(chartControl.CenterPoint.X + chartControl.ChartDataCollection[i].X * chartControl.XTickValueInterval,
chartControl.CenterPoint.Y - chartControl.ChartDataCollection[i].Y * chartControl.YTickValueInterval));
}
SetChartNewDataCollection(chartControl, pointDataCollection);
//拷贝
//chartControl.ChartDataCollection = chartControl.ChartDataCollection.Clone();
//chartControl.ChartDataCollection.Clear();
//chartControl.ChartDataCollection = new PointCollection(pointDataCollection);
Console.WriteLine("计算");
Console.WriteLine(GetChartNewDataCollection(chartControl));
}
//画图
private static void OnDrawMap(ChartType type, ChartControlView chartControl, Canvas TemplateCanvas)
{
foreach (var canvas in chartControl.TemplateRoot.Children)
{
(canvas as Canvas).Visibility = Visibility.Visible;
}
var standPoints = GetChartNewDataCollection(chartControl);
Canvas OtherHistogram = chartControl.Template.FindName("otherHistogram", chartControl) as Canvas;
Canvas Fangraph = chartControl.Template.FindName("Fangraph", chartControl) as Canvas;
switch (type)
{
case ChartType.PolyLine: //折线图
{
TemplateCanvas.Children.Remove(OtherHistogram);
//TemplateCanvas.Children.Remove(OtherFangraph);
foreach (var item in TemplateCanvas.Children)
{
Console.WriteLine("子项" + item.GetType().Name);
}
}
break;
case ChartType.Cylinder:
{
TemplateCanvas.Children.Remove(OtherHistogram);
}
break;
case ChartType.Histogram: //直方图
{
Path Histogram = TemplateCanvas.FindName("Histogram") as Path;
double width = 2 * chartControl.XTickValueInterval / 3;
//double intervalHeight = chartControl.YTickValueInterval;
PointCollection RightTopPoints = standPoints;
PointCollection LeftTopPoints = new PointCollection();
for (int i = 0; i < standPoints.Count; i++)
{
LeftTopPoints.Add(new Point(standPoints[i].X - width, standPoints[i].Y));
}
PointCollection LeftBottomPoints = new PointCollection();
for (int i = 0; i < standPoints.Count; i++)
{
LeftBottomPoints.Add(new Point(standPoints[i].X - width, chartControl.CenterPoint.Y));
}
PointCollection RightBottomPoints = new PointCollection();
for (int i = 0; i < standPoints.Count; i++)
{
RightBottomPoints.Add(new Point(standPoints[i].X, chartControl.CenterPoint.Y));
}
string data = string.Empty;
for (int i = 0; i < standPoints.Count; i++)
{
string data1 = $"M {RightTopPoints[i].X},{RightTopPoints[i].Y} {LeftTopPoints[i].X},{LeftTopPoints[i].Y}";
string data2 = $" {LeftBottomPoints[i].X},{LeftBottomPoints[i].Y} {RightBottomPoints[i].X},{RightBottomPoints[i].Y} ";
data += data1 + data2;
}
Histogram.Data = Geometry.Parse(data);
for (int i = 0; i < chartControl.ChartDataCollection.Count; i++)
{
TextBlock textBlock = new TextBlock();
textBlock.Text = chartControl.ChartDataCollection[i].Y.ToString();
textBlock.Foreground = Brushes.White;
textBlock.TextAlignment = TextAlignment.Center;
textBlock.Margin = new Thickness(standPoints[i].X - 30, standPoints[i].Y - 20, 0, 0);
OtherHistogram.Children.Add(textBlock);
}
if (!TemplateCanvas.Children.Contains(OtherHistogram))
{
TemplateCanvas.Children.Add(OtherHistogram);
}
Console.WriteLine("DATA:" + data);
Console.WriteLine("柱形图：" + Histogram.Name);
}
break;
case ChartType.Dottedgram:
break;
case ChartType.Fangraph: //饼图
{
foreach (var canvas in chartControl.TemplateRoot.Children)
{
if ((canvas as Canvas).Name.Equals("drawChart"))
{
(canvas as Canvas).Visibility = Visibility.Visible;
}
else
{
(canvas as Canvas).Visibility = Visibility.Collapsed;
}
}
//圆的方程(x-a)^2 + (y-b)^2 = r^2
List <double> anglesList = new List <double>(); //角度
double sumY = 0;
foreach (var p in chartControl.ChartDataCollection)
{
sumY += p.Y;
}
foreach (var p in chartControl.ChartDataCollection)
{
anglesList.Add(p.Y / sumY * 2 * Math.PI);
}
//圆上分割点
List <Point> points = new List <Point>();
//圆中心点
//Point center = new Point(0, 0);
Point center = new Point(chartControl.Width / 2, chartControl.Height / 2);
//圆的半径
double r = chartControl.Width > chartControl.Height ? 2 / 5D * chartControl.Height : 2 / 5D * chartControl.Width;
double angle = 0D;
for (int i = 0; i < chartControl.ChartDataCollection.Count; i++)
{
angle += anglesList[i];
double x = center.X + r * Math.Cos(angle);
double y = center.Y + r * Math.Sin(angle);
points.Add(new Point(x, y));
}
Path ellipsePath = new Path();
ellipsePath.Data = new EllipseGeometry(center, r, r);
//ellipsePath.Stroke = Brushes.Red;
//ellipsePath.StrokeThickness = 2;
Fangraph.Children.Add(ellipsePath);
Brush[] brushes = new Brush[7] {
Brushes.Red, Brushes.BlueViolet, Brushes.Yellow, Brushes.Blue, Brushes.SaddleBrown, Brushes.Purple, Brushes.BlueViolet
};
for (int i = 0; i < points.Count; i++)
{
Path path = new Path();
string source = "";
if (i == points.Count - 1)
{
source = $"M {points[i].X},{points[i].Y} A {r},{r} 50 0 1 {points[0].X},{points[0].Y} L {center.X},{center.Y}";
}
else
{
source = $"M {points[i].X},{points[i].Y} A {r},{r} 50 0 1 {points[i + 1].X},{points[i + 1].Y} L {center.X},{center.Y}";
}
path.Data = Geometry.Parse(source);
path.Fill = brushes[i];
Fangraph.Children.Add(path);
}
////画小圆
//for (int i = 0; i < points.Count; i++)
//{
// Path path = new Path();
// path.Data = new EllipseGeometry(points[i], 10, 10);
// path.Fill = brushes[i];
// Fangraph.Children.Add(path);
//}
////如果原点为左上角，则需要平移
//TranslateTransform transform = new TranslateTransform(300, 300);
//Fangraph.RenderTransform = transform;
//int roateAngle = 180;
//while (true)
//{
// roateAngle += 1;
// RotateTransform rotateTransform = new RotateTransform(roateAngle, 300, 300);
// Fangraph.RenderTransform = rotateTransform;
// Thread.Sleep(50);
//}
//DoubleAnimationUsingKeyFrames doubleAnimationUsingKeyFrames = new DoubleAnimationUsingKeyFrames();
//Duration duration = new Duration(TimeSpan.FromSeconds(3));
//DiscreteDoubleKeyFrame discreteDoubleKeyFrame = new DiscreteDoubleKeyFrame(roateAngle);
//doubleAnimationUsingKeyFrames.Duration = duration;
//doubleAnimationUsingKeyFrames.KeyFrames.Add(discreteDoubleKeyFrame);
//AnimationClock clock = doubleAnimationUsingKeyFrames.CreateClock();
//Fangraph.ApplyAnimationClock(RenderTransformProperty, clock);
}
break;
default:
break;
}
}