void Init()
{
// Set up all default properties
fillColor = Colors.DarkGray;
fillGradient = null;
BorderColor = Colors.Black;
BaseOffset = 0;
Center = true;
IsStacked = false;
Filled = false;
}
void Init()
{
// Set up all default properties
fillColor = Colors.DarkGray;
fillGradient = null;
BorderColor = Colors.Black;
BaseOffset = 0;
Center = true;
IsStacked = false;
Filled = false;
}
public StepPlotSample()
: base()
{
infoText = "";
infoText += "Sound Wave Example. Demonstrates - \n";
infoText += " * StepPlot (centered) and HorizontalLine IDrawables \n";
infoText += " * Vertical ColorGradient plotBackground \n";
//infoText += " * AxisDrag Interaction - try left clicking and dragging X or Y axes \n";
//infoText += " * Vertical & Horizontal GuideLines - without fragmentation problems! \n";
//infoText += " * Rubberband Selection - click and drag to zoom an area of the plot \n";
//infoText += " * Key actions : +,- zoom, left/right/up/down pan, Home restores original scale and origin";
Assembly asm = Assembly.GetExecutingAssembly ();
Stream file = asm.GetManifestResourceStream ("Samples.Resources.sound.wav");
byte[] a = new byte[10000];
System.Int16[] v = new short[5000];
System.Int16[] w = new short[1000];
file.Read (a, 0, 10000);
for (int i=100; i<5000; ++i) {
v[i] = BitConverter.ToInt16 (a,i*2);
}
file.Close();
// Select only every 5th sample, so data size = 1000 points
for (int i=1; i<1000; ++i) {
w[i] = v[i*5];
}
plotCanvas.Clear();
plotCanvas.AddInteraction (new KeyActions ());
//plotCanvas.AddInteraction (new AxisDrag ());
//plotCanvas.AddInteraction (new PlotSelection (Color.Gray));
//plotCanvas.AddInteraction (new VerticalGuideline (Color.Gray));
//plotCanvas.AddInteraction (new HorizontalGuideline (Color.Gray));
plotCanvas.Add (new HorizontalLine (2500.0, Colors.LightBlue));
StepPlot sp = new StepPlot ();
sp.DataSource = w;
sp.Color = Colors.Black;
sp.Center = true;
plotCanvas.Add (sp);
plotCanvas.YAxis1.FlipTickText = true;
plotCanvas.Canvas.BackgroundColor = new Color (0.375, 0.375, 0.375);
ColorGradient g = new ColorGradient ();
g.StartColor = new Color (0.5, 0.5, 1);
g.EndColor = new Color (0.5, 1, 0.5);
plotCanvas.PlotBackGradient = g;
plotCanvas.XAxis1.LineColor = Colors.White;
plotCanvas.YAxis1.LineColor = Colors.White;
PackStart (plotCanvas.Canvas, true);
Label la = new Label (infoText);
PackStart (la);
}
