private void DrawChart(Canvas canGraph, List<NameValueItem>[] pList, double axisx_min, double axisx_max, double data_min, double data_max) { canGraph.Children.Clear();
double[] RectWall; RectWall = new double[4]; RectWall[0] = 0; // left RectWall[1] = 0; // top RectWall[2] = canGraph.ActualWidth; // right RectWall[3] = canGraph.ActualHeight; // bottom
double[] RectGap; RectGap = new double[4]; RectGap[0] = 30; // left RectGap[1] = 20; // top RectGap[2] = 20; // right RectGap[3] = 20; // bottom
double[] RectChart; RectChart = new double[4]; RectChart[0] = RectWall[0] + RectGap[0]; // left RectChart[1] = RectWall[1] + RectGap[1]; // top RectChart[2] = RectWall[2] - RectGap[2]; // right RectChart[3] = RectWall[3] - RectGap[3]; // bottom
double fChartWidth = RectChart[2] - RectChart[0]; double fChartHeight = RectChart[3] - RectChart[1];
int xGridNum = 5; int yGridNum = 10; double fGridGapX = fChartWidth / xGridNum; double fGridGapY = fChartHeight / yGridNum;
// 차트 그리기. Rectangle pChartRect = new Rectangle(); pChartRect.StrokeThickness = 1; pChartRect.Fill = new SolidColorBrush(Colors.Black); pChartRect.Stroke = new SolidColorBrush(Colors.Yellow); pChartRect.Width = fChartWidth; pChartRect.Height = fChartHeight; Canvas.SetLeft(pChartRect, RectChart[0]); Canvas.SetTop(pChartRect, RectChart[1]); canGraph.Children.Add(pChartRect);
// x축 그리기. int iCount = 0; GeometryGroup xaxis_geom = new GeometryGroup(); for (double x = 0; x <= fChartWidth; x += fGridGapX) { LineGeometry xtick = new LineGeometry(); xtick.StartPoint = new Point(x + RectChart[0], RectChart[3] + 5); xtick.EndPoint = new Point(x + RectChart[0], RectChart[1]); xaxis_geom.Children.Add(xtick);
TextBlock xlabel = new TextBlock(); int ivalue = (int)axisx_min + (int)(axisx_max - axisx_min) / xGridNum * iCount; xlabel.Text = ivalue.ToString(); xlabel.FontSize = 10; Canvas.SetLeft(xlabel, x + RectChart[0]); Canvas.SetTop(xlabel, RectChart[3] + 5); canGraph.Children.Add(xlabel); iCount = iCount + 1; }
Path xaxis_path = new Path(); xaxis_path.StrokeThickness = 1; xaxis_path.Stroke = new SolidColorBrush(Colors.Green); xaxis_path.Data = xaxis_geom; canGraph.Children.Add(xaxis_path);
// y축 그리기. iCount = 0; GeometryGroup yxaxis_geom = new GeometryGroup(); for (double y = 0; y <= fChartHeight; y += fGridGapY) { LineGeometry ytick = new LineGeometry(); ytick.StartPoint = new Point(RectChart[0] - 5, RectChart[3] - y); ytick.EndPoint = new Point(RectChart[2], RectChart[3] - y); yxaxis_geom.Children.Add(ytick);
TextBlock ylabel = new TextBlock(); int ivalue = (int)data_min + (int)(data_max - data_min) / yGridNum * iCount; ylabel.Text = ivalue.ToString(); ylabel.FontSize = 10; Canvas.SetLeft(ylabel, RectChart[0] - 20); Canvas.SetTop(ylabel, RectChart[3] - y - ylabel.FontSize); canGraph.Children.Add(ylabel); iCount = iCount + 1; }
Path yaxis_path = new Path(); yaxis_path.StrokeThickness = 1; yaxis_path.Stroke = new SolidColorBrush(Colors.Green); yaxis_path.Data = yxaxis_geom; canGraph.Children.Add(yaxis_path);
// data 그리기. double x1 = 0; double y1 = 0; double x2 = 0; double y2 = 0; int idim = 0; idim = pList.Length; if (idim > 0) { for (int i = 0; i < idim; i++) { GeometryGroup data_geom = new GeometryGroup();
List<NameValueItem> newitems = pList[i]; double xstep = fChartWidth / newitems.Count;
for (int j = 0; j < newitems.Count-1; j++) { LineGeometry vline = new LineGeometry();
x1 = RectChart[0] + xstep * j; y1 = RectChart[3] - fChartHeight * ((newitems[j].Value- data_min) / (data_max - data_min)); if (y1 < RectChart[1]) y1 = RectChart[1]; if (y1 > RectChart[3]) y1 = RectChart[3]; x2 = RectChart[0] + xstep * (j+1); y2 = RectChart[3] - fChartHeight * ((newitems[j+1].Value - data_min) / (data_max - data_min)); if (y2 < RectChart[1]) y2 = RectChart[1]; if (y2 > RectChart[3]) y2 = RectChart[3]; vline.StartPoint = new Point(x1, y1); vline.EndPoint = new Point(x2, y2); data_geom.Children.Add(vline); }
Path value_path = new Path(); value_path.StrokeThickness = 1; if (i == 0) value_path.Stroke = new SolidColorBrush(Colors.Red); else if (i == 1) value_path.Stroke = new SolidColorBrush(Colors.Green); else if (i == 2) value_path.Stroke = new SolidColorBrush(Colors.Blue); else value_path.Stroke = new SolidColorBrush(Colors.Yellow); value_path.Data = data_geom; canGraph.Children.Add(value_path); } } } |
lesson3.zip
enuSpace 팜플렛.pdf
