public void GetInterpolatedColor()
{
var defaultColorScale = new ColorScale(new List <Color>()
{
Colors.Cyan, Colors.Purple, Colors.Orange
});
Assert.Equal(defaultColorScale.Colors[1], defaultColorScale.GetColor(0.5));
Assert.Equal(defaultColorScale.Colors[0], defaultColorScale.GetColor(0.0));
Assert.Equal(defaultColorScale.Colors[2], defaultColorScale.GetColor(1.0));
var unevenColorScale = new ColorScale(new List <Color>()
{
Colors.Cyan, Colors.Purple, Colors.Orange
}, new List <double>()
{
0, 10, 15
});
Assert.Equal(unevenColorScale.Colors[0], unevenColorScale.GetColor(0.0));
Assert.Equal(unevenColorScale.Colors[1], unevenColorScale.GetColor(10.0));
Assert.Equal(unevenColorScale.Colors[2], unevenColorScale.GetColor(15.0));
Assert.Throws <ArgumentException>(() => unevenColorScale.GetColor(15.1));
}
public void DeserializesCorrectly()
{
var bandedColorScale = new ColorScale(new List <Color>()
{
Colors.Cyan, Colors.Purple, Colors.Orange
}, 10);
var bandedSerialized = JsonConvert.SerializeObject(bandedColorScale);
var bandedDeserialized = JsonConvert.DeserializeObject <ColorScale>(bandedSerialized);
Assert.Equal(bandedColorScale.GetColor(0.12345), bandedDeserialized.GetColor(0.12345));
var linearColorScale = new ColorScale(new List <Color>()
{
Colors.Cyan, Colors.Purple, Colors.Orange
});
var linearSerialized = JsonConvert.SerializeObject(linearColorScale);
var linearDeserialized = JsonConvert.DeserializeObject <ColorScale>(linearSerialized);
Assert.Equal(linearColorScale.GetColor(0.12345), linearDeserialized.GetColor(0.12345));
Assert.NotEqual(linearColorScale.GetColor(0.12345), bandedColorScale.GetColor(0.12345));
}
public void GetBandedColor()
{
var numColors = 10;
var colorScale = new ColorScale(new List <Color>()
{
Colors.Cyan, Colors.Purple, Colors.Orange
}, numColors);
Assert.Equal(10, colorScale.Colors.Count);
for (var i = 0; i < numColors; i++)
{
Assert.Equal(colorScale.Colors[i], colorScale.GetColor((double)i / (numColors - 1)));
}
}
private ImageSource DataToBitmap(float[] data, int2 dims)
{
ImageSource Bitmap;
float Min = (float)ThresholdLower;
float Range = (float)(ThresholdUpper - ThresholdLower);
if (Range == 0)
{
Range = 1e-5f;
}
ColorScale Palette = ColorScale == null ?
new ColorScale(new[] { new float4(0, 0, 0, 1), new float4(1, 1, 1, 1) }) :
ColorScale;
byte[] DataBytes = new byte[data.Length * 4];
for (int y = 0; y < dims.Y; y++)
{
for (int x = 0; x < dims.X; x++)
{
float V = (data[y * dims.X + x] - Min) / Range;
float4 C = Palette.GetColor(V) * 255;
DataBytes[((dims.Y - 1 - y) * dims.X + x) * 4 + 3] = (byte)C.W;
DataBytes[((dims.Y - 1 - y) * dims.X + x) * 4 + 2] = (byte)C.X;
DataBytes[((dims.Y - 1 - y) * dims.X + x) * 4 + 1] = (byte)C.Y;
DataBytes[((dims.Y - 1 - y) * dims.X + x) * 4 + 0] = (byte)C.Z;
}
}
Bitmap = BitmapSource.Create(dims.X, dims.Y, 96, 96, PixelFormats.Bgra32, null, DataBytes, dims.X * 4);
Bitmap.Freeze();
return(Bitmap);
}
protected void PaintOnGraphicsVector(IGraphics g, int width, int height)
{
if (scatterPlot == null)
{
return;
}
if (!area.IsEmpty)
{
g.FillRectangle(Brushes.LightGray, 0, 0, width, height);
g.FillRectangle(Brushes.White, area.X, area.Y, area.Width, area.Height);
}
else
{
g.FillRectangle(new SolidBrush(BackColor), 0, 0, width, height);
}
PaintGridVector(g, width, height);
SymbolProperties[] gg = ArrayUtils.GetKeys(values);
int[] counts = new int[gg.Length];
for (int i = 0; i < counts.Length; i++)
{
counts[i] = values[gg[i]].Count;
}
int[] o = ArrayUtils.Order(counts);
Array.Reverse(o);
gg = ArrayUtils.SubArray(gg, o);
foreach (SymbolProperties g1 in gg)
{
bool[,] vals = values[g1].Data;
double[,] zvals = null;
if (zValues != null)
{
zvals = zValues[g1];
}
for (int i = 0; i < width; i++)
{
for (int j = 0; j < height; j++)
{
if (vals[i, j])
{
Color color;
if (zvals != null && !double.IsNaN(zvals[i, j]) && colorScale != null)
{
color = colorScale.GetColor(zvals[i, j]);
}
else
{
color = g1.Color;
}
Pen p = new Pen(color);
Brush b = new SolidBrush(color);
SymbolType symbolType = SymbolType.allSymbols[g1.Type];
int symbolSize = g1.Size;
if (symbolSize == 0)
{
continue;
}
int[] pathX;
int[] pathY;
symbolType.GetPath(symbolSize, out pathX, out pathY);
symbolType.Draw(symbolSize, i, j, g, p, b);
}
}
}
}
// selected data points
Brush selectionBrush = new SolidBrush(SelectionColor);
Pen selectionPen = new Pen(SelectionColor);
foreach (int s in scatterPlot.Selection)
{
double[] w = scatterPlot.GetDataAt(s);
if (w.Length > 0)
{
double x = w[0];
double y = w[1];
SymbolProperties gx = GetPointProperties != null?GetPointProperties(s) : defaultSymbol;
SymbolType symbolType = SymbolType.allSymbols[gx.Type];
int symbolSize = gx.Size;
if (symbolSize > 0)
{
symbolType.Draw(symbolSize, ModelToViewX(x, width), ModelToViewY(y, height), g, selectionPen, selectionBrush);
}
}
}
// labels
ScatterPlotLabelMode labelMode = scatterPlot.GetLabelMode();
bool cutLabels = scatterPlot.CutLabels;
if (labelMode == ScatterPlotLabelMode.All && scatterPlot.HasLabels)
{
Font font = new Font("Arial", scatterPlot.FontSize, scatterPlot.FontStyle);
for (;;)
{
double[] x;
double[] y;
double[] z;
string[] labels;
int index;
scatterPlot.GetData(out x, out y, out z, out labels, out index);
if (x == null)
{
break;
}
SymbolProperties gx = GetPointProperties != null?GetPointProperties(index) : defaultSymbol;
for (int i = 0; i < x.Length; i++)
{
if (labelMode == ScatterPlotLabelMode.All || scatterPlot.IsSelected(i))
{
int ix = ModelToViewX(x[i], width);
int iy = ModelToViewY(y[i], height);
Color c;
if (z != null && colorScale != null)
{
c = colorScale.GetColor(z[i]);
}
else
{
c = gx.Color;
}
Brush b = new SolidBrush(c);
if (ix >= 0 && iy >= 0 && ix < width && iy < height)
{
if (labels[i] != null)
{
string s = labels[i];
if (cutLabels)
{
if (s.Contains(";"))
{
s = s.Substring(0, s.IndexOf(';'));
}
}
g.DrawString(s, font, b, ix, iy);
}
}
}
}
}
scatterPlot.Reset();
}
if (labelMode == ScatterPlotLabelMode.Selected && scatterPlot.HasLabels)
{
Font font = new Font("Arial", scatterPlot.FontSize, scatterPlot.FontStyle);
foreach (int s in scatterPlot.Selection)
{
double[] w = scatterPlot.GetDataAt(s);
string label = scatterPlot.GetLabelAt(s);
double x = w[0];
double y = w[1];
int ix = ModelToViewX(x, width);
int iy = ModelToViewY(y, height);
if (ix >= 0 && iy >= 0 && ix < width && iy < height)
{
if (label != null)
{
if (cutLabels)
{
if (label.Contains(";"))
{
label = label.Substring(0, label.IndexOf(';'));
}
}
g.DrawString(label, font, selectionBrush, ix, iy);
}
}
}
}
DrawPolygons(g, width, height);
if (drawFunctions != null)
{
drawFunctions(g, width, height, ModelToViewX, ModelToViewY, ViewToModelX, ViewToModelY);
}
}
