protected override void OnLoad(EventArgs e)
{
base.OnLoad(e);
// new data source
DataSource ds = new DataSource("PlainGraph Sample");
// new record
DataRecord dr = new DataRecord("DVD");
dr.Color = Color.SkyBlue;
dr.LineWeight = 2f; // line weight
dr.AddData("2010", 3000);
dr.AddData("2011", 3500);
dr.AddData("2012", 5000);
// add record
ds.AddData(dr);
// simple way to create record and add
ds.AddData("Book", new Dictionary<string, double>(){
{ "2010", 2100 },
{ "2011", 2700 },
{ "2012", 2550 },
}).LineWeight = 3f;
graph.DataSource = ds; // update data source
graph.GraphType = PlainGraphType.Column; // change chart type
}
public DataRecord add_data(string title, Dictionary <int, double> values, Color color)
{
var record = new DataRecord {
Key = title,
Color = color,
};
foreach (var key in values.Keys)
{
var set = new DataEntity()
{
Key = key.ToString(),
Value = values[key],
Style = new DataEntityStyle {
Color = PlainGraphToolkit.get_random_color(),
},
};
record.Set.Add(set);
}
Records.Add(record);
return(record);
}
public DataRecord add_data(string title, IQueryable <KeyValuePair <string, int> > values, Color color)
{
var record = new DataRecord()
{
Key = title,
Color = color,
};
foreach (var key in values.Select(v => v.Key))
{
var set = new DataEntity()
{
Key = key,
Value = values.FirstOrDefault(v => v.Key == key).Value,
Style = new DataEntityStyle {
Color = PlainGraphToolkit.get_random_color(),
},
};
record.Set.Add(set);
}
Records.Add(record);
return(record);
}
public DataRecord AddData(string name)
{
DataRecord record = new DataRecord(name);
AddData(record);
return record;
}
public void AddData(DataRecord record)
{
records.Add(record);
}
public DataRecord AddData(string title, Dictionary<int, double> values, Color color)
{
DataRecord record = new DataRecord()
{
Key = title,
Color = color,
};
foreach (int key in values.Keys)
{
DataEntity set = new DataEntity()
{
Key = key.ToString(),
Value = values[key],
Style = new DataEntityStyle
{
Color = PlainGraphToolkit.GetRandomColor(),
},
};
record.Set.Add(set);
}
records.Add(record);
return record;
}
public DataRecord AddData(string title, IQueryable<KeyValuePair<string, int>> values, Color color)
{
DataRecord record = new DataRecord()
{
Key = title,
Color = color,
};
foreach (string key in values.Select(v => v.Key))
{
DataEntity set = new DataEntity()
{
Key = key,
Value = values.FirstOrDefault(v => v.Key == key).Value,
Style = new DataEntityStyle
{
Color = PlainGraphToolkit.GetRandomColor(),
},
};
record.Set.Add(set);
}
records.Add(record);
return record;
}
public void AddData(DataRecord record)
{
records.Add(record);
}
protected virtual void DrawPieString(Graphics g, Rectangle pieBounds,
DataRecord record, DataEntity entity, float startAngle, float endAngle)
{
if (IsShowEntityName)
{
float w = pieBounds.Width / 3.5f;
float h = pieBounds.Height / 3.5f;
// angle -> radian
float radian = (float)((startAngle + endAngle / 2) * Math.PI / 180f);
double x = w * Math.Cos(radian);
double y = h * Math.Sin(radian);
if (x != double.NaN && y != double.NaN)
{
string str = entity.Key.ToString(); //string.Format("{0}%", Math.Round(endAngle / 360f * 100f));
SizeF strSize = g.MeasureString(str, Font);
g.DrawString(str,
Font, Brushes.Black, pieBounds.Left + pieBounds.Width / 2 + (int)x - strSize.Width / 2,
pieBounds.Top + pieBounds.Height / 2 + (int)y - strSize.Height / 2);
}
}
}
protected virtual void DrawEntityPie(Graphics g, Rectangle pieBounds,
DataRecord record, DataEntity entity, float startAngle, float endAngle)
{
if (pieBounds.Width <= 0 || pieBounds.Height <= 0) return;
Color color = entity.Style.Color;
using (Brush b = new SolidBrush(color))
{
g.FillPie(b, pieBounds, startAngle, endAngle);
}
DrawPieString(g, pieBounds, record, entity, startAngle, endAngle);
}
protected override void DrawEntityPie(Graphics g, Rectangle pieBounds,
DataRecord record, DataEntity entity, float startAngle, float endAngle)
{
if (pieBounds.Width <= 0 || pieBounds.Height <= 0) return;
//if (record.Set.IndexOf(entity) != 4) return;
float sa = startAngle + 2f;
float ea = endAngle - 2f;
Color color = entity.Style.Color;
int w = (int)(pieBounds.Width/2f);
int h = (int)(pieBounds.Height/2f);
PointF origin = new PointF(pieBounds.Left + w, pieBounds.Top + h);
RectangleF originRect = new RectangleF(origin.X - 5, origin.Y - 5, 10, 10);
PointF pto = PointAtArc(origin, originRect, sa + ea / 2);
RectangleF halfRect = new RectangleF(origin .X - 5, origin.Y - 5, 10, 10);
PointF pt1 = PointAtArc(pto, halfRect, sa);
PointF pt2 = PointAtArc(pto, halfRect, sa + ea);
//using (GraphicsPath gp = new GraphicsPath( FillMode.Winding))
//{
// gp.AddLine(x1, y1, origial.X, origial.Y);
// gp.AddLine(origial.X, origial.Y, origial.X, origial.Y + 20);
// Rectangle rect = pieBounds;
// rect.Offset(0, 20);
// gp.AddArc(rect, sa + ea, -ea);
// gp.CloseAllFigures();
// using (Brush b = new SolidBrush(color))
// {
// //g.FillPath(b, gp);
// }
//}
//using (GraphicsPath gp = new GraphicsPath())
//{
// gp.AddArc(pieBounds, sa, ea);
// gp.AddLine(origial.X, origial.Y, x1, y1);
// //g.DrawLine(Pens.Black, origial.X + x2, origial.Y + y2+20, origial.X, origial.Y);
// using (Brush b = new SolidBrush(ControlPaint.Light(color)))
// {
// //g.FillPath(b, gp);
// }
//}
float fixedAngle = FixedAngle(sa - 0.1f, halfRect);
float fixedEndAngle = FixedAngle((sa + ea) - 0.1f, halfRect);
float a2 = fixedEndAngle - fixedAngle;
if (a2 < 0) a2 += 360;
Debug.WriteLine("a2=" + a2);
g.DrawLine(Pens.Black, pto.X, pto.Y, pt1.X, pt1.Y);
g.DrawArc(Pens.Black, pieBounds, fixedAngle, a2);
g.DrawLine(Pens.Black, pt2.X, pt2.Y, pto.X, pto.Y);
Rectangle rect2 = pieBounds;
rect2.Offset(0, 20);
//g.DrawLine(Pens.Blue, origin.X, origin.Y, pt1.X, pt1.Y + 20);
//g.DrawArc(Pens.Blue, rect2, fixedAngle, a2);
//g.DrawLine(Pens.Blue, pt2.X, pt2.Y + 20, origin.X, origin.Y);
DrawPieString(g, pieBounds, record, entity, sa, ea);
}
protected override void DrawPoint(Graphics g, DataEntity entity, Point p, DataRecord record)
{
if (entity.Style == null || entity.Style.EndCap == LineCap.Flat)
{
int size = (int)(record.LineWeight * 0.75f * PointSize);
if (size < 5) size = 5;
using (SolidBrush sb = new SolidBrush(record.Color))
{
g.FillEllipse(sb, p.X - size / 2, p.Y - size / 2, size, size);
}
}
}
protected virtual void DrawPoint(Graphics g, DataEntity entity, Point p, DataRecord record)
{
}
protected override void DrawEntityPie(Graphics g, Rectangle pieBounds,
DataRecord record, DataEntity entity, float startAngle, float endAngle)
{
if (pieBounds.Width <= 0 || pieBounds.Height <= 0) return;
Color color = entity.Style.Color;
float w = pieBounds.Width * 1.2f;
float h = pieBounds.Height * 1.2f;
float radian = (float)((startAngle + endAngle / 2) * Math.PI / 180f);
double x = w * Math.Cos(radian);
double y = h * Math.Sin(radian);
//if (record.Set.IndexOf(entity) == 3)
//{
// //pieBounds.Inflate(-30, -30);
// //pieBounds = new Rectangle((int)x-pieBounds.Width/2, (int)y-pieBounds.Height/2, pieBounds.Width, pieBounds.Height);
//}
//else
pieBounds.Inflate(-20, -20);
using (Brush b = new SolidBrush(color))
{
g.FillPie(b, pieBounds, startAngle, endAngle);
}
DrawPieString(g, pieBounds, record, entity, startAngle, endAngle);
}
public void add_data(DataRecord record)
{
Records.Add(record);
}
