//InitialData
public void InitialVeggie()
{
veggieModel = new VeggieModel();
veggieModel.AddVeggie("MushRoom", 8);
veggieModel.AddVeggie("Onion", 3);
veggieModel.AddVeggie("Olive", 2);
veggieModel.AddVeggie("Tomato", 6);
veggieModel.AddVeggie("Carrot", 5);
veggieModel.AddVeggie("Corn", 7);
veggieModel.AddVeggie("Potato", 4);
}
//PieChart
private FileContentResult DrawPieChart(VeggieModel v, int bitMapW, int bitMapH)
{
//Creat Bitmap for Web
Bitmap bitMap = new Bitmap(bitMapW, bitMapH);
//Create Graphic for Drawing
Graphics g = Graphics.FromImage(bitMap);
g.SmoothingMode = System.Drawing.Drawing2D.SmoothingMode.AntiAlias;
g.TextRenderingHint = System.Drawing.Text.TextRenderingHint.AntiAlias;
//SumTotal
int total = 0;
for (int i = 0; i < v.veggies.Count; i++)
{
total += v.veggies[i].Qty;
}
//Variable for DrawPie
float angle = 0;
float sweep = 0;
float radiusX = bitMapW * 0.6f;
float radiusY = bitMapH * 0.6f;
float pointX = (bitMapW - radiusX) * 0.75f;
float pointY = (bitMapH - radiusY) * 0.66f;
//Variable for DrawText
float y = 0;
for (int i = 0; i < v.veggies.Count; i++)
{
int val = v.veggies[i].Qty;
sweep = 360f * val / total;
//Set Color
Color paintColor = this.ColorArray[i];
SolidBrush brush = new SolidBrush(paintColor);
g.FillPie(brush, pointX, pointY, radiusX, radiusY, angle, sweep);
//NextStartAngle
angle += sweep;
//DrawText;
Font font = new Font("Tahoma", 10, FontStyle.Regular, GraphicsUnit.Pixel);
g.DrawString(v.veggies[i].Name, font, brush, 0, y);
y += 10;
}
//Create Image MemoryStream
System.IO.MemoryStream memStream = new System.IO.MemoryStream();
bitMap.Save(memStream, ImageFormat.Png);
return(this.File(memStream.GetBuffer(), "image/png"));;
}
//BarChart
private FileContentResult DrawBarChart(VeggieModel v, int bitMapW, int bitMapH)
{
//Creat Bitmap for Web
Bitmap bitMap = new Bitmap(bitMapW, bitMapH);
//Create Graphic for Drawing
Graphics g = Graphics.FromImage(bitMap);
g.SmoothingMode = System.Drawing.Drawing2D.SmoothingMode.AntiAlias;
g.TextRenderingHint = System.Drawing.Text.TextRenderingHint.AntiAlias;
//FindMax
int max = v.veggies[0].Qty;;
for (int i = 0; i < v.veggies.Count; i++)
{
if (v.veggies[i].Qty > max)
{
max = v.veggies[i].Qty;
}
}
//Variable for Chart
float barWidth = bitMapW / v.veggies.Count;
float barHeight = bitMapH * 0.5f;
float newY = 0;
//Variable for DrawText
float y = 0;
for (int i = 0; i < v.veggies.Count; i++)
{
int val = v.veggies[i].Qty;
//Set Color
Color paintColor = this.ColorArray[i];
SolidBrush brush = new SolidBrush(paintColor);
newY = bitMapH - (barHeight * v.veggies[i].Qty / max);
g.FillRectangle(brush, (i * barWidth), newY, barWidth, barHeight * v.veggies[i].Qty / max);
//DrawText;
Font font = new Font("Tahoma", 10, FontStyle.Regular, GraphicsUnit.Pixel);
g.DrawString(v.veggies[i].Name, font, brush, 0, y);
y += 10;
}
//Create Image MemoryStream
System.IO.MemoryStream memStream = new System.IO.MemoryStream();
bitMap.Save(memStream, ImageFormat.Png);
return(this.File(memStream.GetBuffer(), "image/png"));;
}
