/// <summary>
/// Save an image of the current plot
/// </summary>
/// <param name="imageFilename">The filename to be used for the output image</param>
public void Save(string imageFilename)
{
string instructionsFilename = Path.GetFileNameWithoutExtension(imageFilename) + ".txt";
_plot.AddPen(1, new Pen(Color.Black, 1));
_plot.AddPen(2, new Pen(Color.Red, 1));
_plot.AddPen(3, new Pen(Color.DarkBlue, 1));
_plot.AddPen(4, new Pen(Color.SpringGreen, 1));
_plot.AddPen(5, new Pen(Color.Purple, 1));
_plot.AddPen(6, new Pen(Color.Pink, 1));
_plot.AddPen(7, new Pen(Color.Yellow, 1));
_plot.AddPen(8, new Pen(Color.DarkGreen, 1));
_defaultPen = 1;
_currentX = 0;
// when drawing the plot on the image we start from the top left, but the plot starts from the bottom left
// so set the initial y value = to the max y (the ProcessDelta method adjusts for the scalefactor)
_currentY = _plot.MaxY;
_currentPenState = PenState.PenUp;
int height = Convert.ToInt32(_plot.MaxY * _scaleFactor);
int width = Convert.ToInt32(_plot.MaxX * _scaleFactor);
using (var bmp = new Bitmap(width, height)) {
using (var g = Graphics.FromImage(bmp)) {
// set the background to white
g.Clear(Color.White);
foreach (var inst in _plot.Instructions)
{
switch (inst.InstType)
{
case InstructionType.Delta:
ProcessDelta(inst.X, (inst.Y * -1), g);
break;
case InstructionType.PenDown:
_currentPenState = PenState.PenDown;
break;
case InstructionType.PenUp:
_currentPenState = PenState.PenUp;
break;
case InstructionType.PenChange:
if (_plot.Pens.ContainsKey(inst.NewPen))
{
_currentPen = inst.NewPen;
}
else
{
_currentPen = _defaultPen;
Console.WriteLine("Pen not defined: {0}, using default pen.", inst.NewPen);
}
// this doesn't seem to be strictly part of the spec but is perhaps implied in some way
_currentPenState = PenState.PenUp;
break;
}
}
}
bmp.Save(imageFilename);
Console.WriteLine("Plot written to {0}", imageFilename);
}
// write out the instructions if required
if (_includeInstructions)
{
using (StreamWriter writer = new StreamWriter(instructionsFilename)) {
foreach (var instruction in _plot.InstructionList)
{
writer.WriteLine(instruction);
}
}
Console.WriteLine("Plot instructions written to {0}", instructionsFilename);
}
}
public PenRequest(PenState state)
: base(CommandConstants.Pen)
{
Bytes.Add((byte)state);
}
protected virtual void SetPenState(PenState penState)
{
State.PenState = penState;
}
public PenResponse(PenState penState)
{
PenState = penState;
}
