public static void DrawNotes(Dictionary<double, MaiNotes> data, double size, Bitmap bitmap, WaveVisualizationConfiguration config = null)
{
if (config == null)
{
config = new WaveVisualizationConfiguration();
}
config.SetBoundsIfValueIsDefault(bitmap);
float width = config.Bounds.Width;
float height = config.Bounds.Height;
float noteHeight = height / (float)MaiNotes.MaxButton;
float noteWidth = 5;
using (Graphics g = Graphics.FromImage(bitmap))
{
Pen edgePen = new Pen(config.EdgeColor);
edgePen.LineJoin = LineJoin.Round;
edgePen.Width = config.EdgeSize;
Brush areaBrush = new SolidBrush(config.AreaColor);
PointF[] topCurve = new PointF[(int)width / config.Step];
PointF[] bottomCurve = new PointF[(int)width / config.Step];
//int idx = 0;
foreach (var pair in data)
{
var time = pair.Key;
var d = pair.Value;
if (time < 0.0 || time > size) continue;
var x = (float)(time / size * width);
foreach (var note in d.Notes)
{
var y = (float)note.No / (float)MaiNotes.MaxButton * height;
g.FillPolygon(note.Brush, getNotePoints(x, y, noteHeight, noteWidth));
foreach (var s in note.Slides)
{
}
}
}
g.Flush();
}
}
public static void DrawWave(float[] data, Bitmap bitmap, WaveVisualizationConfiguration config = null)
{
Color areaColor = Color.FromArgb(0x7F87CEFA);// Color.LightSkyBlue; semi transparent
Color edgeColor = Color.DarkSlateBlue;
int edgeSize = 2;
int step = 2;
double overlap = 0.10f; // would better use a windowing function
Rectangle bounds = Rectangle.FromLTRB(0, 0, bitmap.Width, bitmap.Height);
if (config != null)
{
edgeSize = config.EdgeSize;
if (config.AreaColor.HasValue)
{
areaColor = config.AreaColor.GetValueOrDefault();
}
if (config.EdgeColor.HasValue)
{
edgeColor = config.EdgeColor.GetValueOrDefault();
}
if (config.Bounds.HasValue)
{
bounds = config.Bounds.GetValueOrDefault();
}
step = Math.Max(1, config.Step);
overlap = config.Overlap;
}
float width = bounds.Width;
float height = bounds.Height;
using (Graphics g = Graphics.FromImage(bitmap))
{
Pen edgePen = new Pen(edgeColor);
edgePen.LineJoin = LineJoin.Round;
edgePen.Width = edgeSize;
Brush areaBrush = new SolidBrush(areaColor);
float size = data.Length;
PointF[] topCurve = new PointF[(int)width / step];
PointF[] bottomCurve = new PointF[(int)width / step];
int idx = 0;
for (float iPixel = 0; iPixel < width; iPixel += step)
{
// determine start and end points within WAV
int start = (int)(iPixel * (size / width));
int end = (int)((iPixel + step) * (size / width));
int window = end - start;
start -= (int)(overlap * window);
end += (int)(overlap * window);
if (start < 0)
{
start = 0;
}
if (end > data.Length)
{
end = data.Length;
}
float posAvg, negAvg;
averages(data, start, end, out posAvg, out negAvg);
float yMax = height - ((posAvg + 1) * .5f * height);
float yMin = height - ((negAvg + 1) * .5f * height);
float xPos = iPixel + bounds.Left;
if (idx >= topCurve.Length)
{
idx = topCurve.Length - 1;
}
topCurve[idx] = new PointF(xPos, yMax);
bottomCurve[bottomCurve.Length - idx - 1] = new PointF(xPos, yMin);
idx++;
}
PointF[] curve = new PointF[topCurve.Length * 2];
Array.Copy(topCurve, curve, topCurve.Length);
Array.Copy(bottomCurve, 0, curve, topCurve.Length, bottomCurve.Length);
g.InterpolationMode = InterpolationMode.HighQualityBicubic;
g.SmoothingMode = SmoothingMode.AntiAlias;
g.FillClosedCurve(areaBrush, curve, FillMode.Winding, 0.15f);
if (edgeSize > 0)
{
g.DrawClosedCurve(edgePen, curve, 0.15f, FillMode.Winding);
}
}
}
public static void DrawWave(float[] data, Bitmap bitmap, WaveVisualizationConfiguration config = null)
{
if (config == null)
{
config = new WaveVisualizationConfiguration();
}
config.SetBoundsIfValueIsDefault(bitmap);
float width = config.Bounds.Width;
float height = config.Bounds.Height;
using (Graphics g = Graphics.FromImage(bitmap))
{
Pen edgePen = new Pen(config.EdgeColor);
edgePen.LineJoin = LineJoin.Round;
edgePen.Width = config.EdgeSize;
Brush areaBrush = new SolidBrush(config.AreaColor);
float size = data.Length;
PointF[] topCurve = new PointF[(int)width / config.Step];
PointF[] bottomCurve = new PointF[(int)width / config.Step];
int idx = 0;
for (float iPixel = 0; iPixel < width; iPixel += config.Step)
{
// determine start and end points within WAV
int start = (int)(iPixel * (size / width));
int end = (int)((iPixel + config.Step) * (size / width));
int window = end - start;
start -= (int)(config.Overlap * window);
end += (int)(config.Overlap * window);
if (start < 0)
start = 0;
if (end > data.Length)
end = data.Length;
float posAvg, negAvg;
averages(data, start, end, out posAvg, out negAvg);
float yMax = height - ((posAvg + 1) * .5f * height);
float yMin = height - ((negAvg + 1) * .5f * height);
float xPos = iPixel + config.Bounds.Left;
if (idx >= topCurve.Length)
idx = topCurve.Length - 1;
topCurve[idx] = new PointF(xPos, yMax);
bottomCurve[bottomCurve.Length - idx - 1] = new PointF(xPos, yMin);
idx++;
}
PointF[] curve = new PointF[topCurve.Length * 2];
Array.Copy(topCurve, curve, topCurve.Length);
Array.Copy(bottomCurve, 0, curve, topCurve.Length, bottomCurve.Length);
g.InterpolationMode = InterpolationMode.HighQualityBicubic;
g.SmoothingMode = SmoothingMode.AntiAlias;
g.FillClosedCurve(areaBrush, curve, FillMode.Winding, 0.15f);
if (config.EdgeSize > 0)
g.DrawClosedCurve(edgePen, curve, 0.15f, FillMode.Winding);
}
}