/// <summary>
/// Draws NPlot.ImagePlot.
/// Does Clear(), axis are hidden.
/// Can be used for icons as well.
/// </summary>
/// <param name="plotSurface2D">
/// A <see cref="IPlotSurface2D"/>
/// </param>
/// <param name="table">
/// A <see cref="Table3D"/>
/// </param>
public static void Draw(IPlotSurface2D plotSurface2D, Table3D table)
{
float[] valuesZ = table.GetValuesZasFloats ();
// NPlot ImagePlot, needs 2D-array of type double
int cyi = table.CountY - 1;
int cx = table.CountX;
double[,] data = new double[table.CountY, cx];
for (int i = 0; i < valuesZ.Length; i++) {
// [row, col], include y-reordering, same effect as plotSurface.YAxis1.Reversed
// not using using YAxis1.Reversed seems to avoid a display bug (white row sometimes included)
data[cyi - i / cx, i % cx] = valuesZ[i];
}
var ip = new ImagePlot (data);
ip.Gradient = gradient;
plotSurface2D.Clear ();
plotSurface2D.Add (ip);
plotSurface2D.XAxis1.Hidden = true;
plotSurface2D.YAxis1.Hidden = true;
}
// static string AnnotationStr (Table2D table2D)
// {
// return string.Format ("Min: {0} Max: {1} Avg: {2}", table2D.Ymin.ToString (), table2D.Ymax.ToString (), table2D.Yavg.ToString ());
// }
// TODO investigate piping binary data via standard input, avoiding temp file
// However temp file might be useful for manual gnuplot experiments.
static void WriteGnuPlotBinary(BinaryWriter bw, Table3D table3D)
{
/* from gnuplot help PDF page 157, "matrix binary":
Single precision floats are stored in a binary file as follows:
<N+1> <y0> <y1> <y2> ... <yN>
<x0> <z0,0> <z0,1> <z0,2> ... <z0,N>
<x1> <z1,0> <z1,1> <z1,2> ... <z1,N>
*/
// x <-> y designation from above (manual) seems wrong as xlabel etc. matches code below!
float[] valuesX = table3D.ValuesX;
// write first float: <N+1>
bw.Write ((float)(valuesX.Length));
// x axis
foreach (var x in valuesX) {
bw.Write (x);
}
float[] valuesY = table3D.ValuesY;
float[] valuesZ = table3D.GetValuesZasFloats ();
for (int iy = 0; iy < valuesY.Length; iy++) {
bw.Write (valuesY[iy]);
for (int ix = 0; ix < valuesX.Length; ix++) {
bw.Write (valuesZ[ix + iy * valuesX.Length]);
}
}
}
void Show3D(Table3D table)
{
if (table == null)
return;
var valuesZ = table.GetValuesZasFloats ();
var tableUI = new GtkWidgets.TableWidget (coloring, table.ValuesX, table.ValuesY, valuesZ, table.Zmin, table.Zmax);
tableUI.TitleMarkup = GtkWidgets.TableWidget.MakeTitleMarkup (table.Title, table.UnitZ);
tableUI.AxisMarkupX = GtkWidgets.TableWidget.MakeMarkup (table.NameX, table.UnitX);
tableUI.AxisMarkupY = GtkWidgets.TableWidget.MakeMarkup (table.NameY, table.UnitY);
// HACK FormatValues, no good digits algorithm yet
int digits = ScoobyRom.Data.AutomaticMinDigits(valuesZ);
if (digits <= 3)
{
tableUI.FormatValues = ScoobyRom.Data.ValueFormat(digits);
}
else{
tableUI.FormatValues = table.Zmax < 30 ? "0.00" : "0.0";
if (table.Zmax < 10)
tableUI.FormatValues = "0.000";
}
// Viewport needed for ScrolledWindow to work as generated table widget has no scroll support
var viewPort = new Gtk.Viewport ();
viewPort.Add (tableUI.Create ());
Gtk.Widget previous = this.scrolledwindowTable3D.Child;
if (previous != null)
this.scrolledwindowTable3D.Remove (previous);
// previous.Dispose () or previous.Destroy () cause NullReferenceException!
this.scrolledwindowTable3D.Add (viewPort);
this.scrolledwindowTable3D.ShowAll ();
}