public void Create_NotAvailableName_ReturnDefaultAlgae(string Name)
{
var factory = new ColormapFactory();
ScottPlot.Drawing.Colormap result = factory.Create(Name);
Assert.AreEqual("Algae", result.Name);
}
public Heatmap PlotHeatmap(
double?[,] intensities,
Drawing.Colormap colormap = null,
string label = null,
double[] axisOffsets = null,
double[] axisMultipliers = null,
double?scaleMin = null,
double?scaleMax = null,
double?transparencyThreshold = null,
Bitmap backgroundImage = null,
bool displayImageAbove = false,
bool drawAxisLabels = true
)
{
Heatmap heatmap = new Heatmap()
{
Label = label,
AxisOffsets = axisOffsets ?? new double[] { 0, 0 },
AxisMultipliers = axisMultipliers ?? new double[] { 1, 1 },
TransparencyThreshold = transparencyThreshold,
BackgroundImage = backgroundImage,
DisplayImageAbove = displayImageAbove,
ShowAxisLabels = drawAxisLabels,
};
heatmap.Update(intensities, colormap ?? Drawing.Colormap.Viridis, scaleMin, scaleMax);
Add(heatmap);
Layout(top: 180);
return(heatmap);
}
public void Create_NotAvailableName_ReturnDefaultAlgae(string Name)
{
var factory = new ColormapFactory();
ScottPlot.Drawing.Colormap result = factory.CreateOrDefault(Name);
Assert.AreEqual(factory.GetDefaultColormap().GetType().Name, result.Name);
}
public Heatmap PlotHeatmap(
double[,] intensities,
Drawing.Colormap colormap = null,
string label = null,
double[] axisOffsets = null,
double[] axisMultipliers = null,
double?scaleMin = null,
double?scaleMax = null,
double?transparencyThreshold = null,
Bitmap backgroundImage = null,
bool displayImageAbove = false,
bool drawAxisLabels = true
)
{
double?[,] tmp = new double?[intensities.GetLength(0), intensities.GetLength(1)];
for (int i = 0; i < intensities.GetLength(0); i++)
{
for (int j = 0; j < intensities.GetLength(1); j++)
{
tmp[i, j] = intensities[i, j];
}
}
return(PlotHeatmap(tmp, colormap, label, axisOffsets, axisMultipliers, scaleMin, scaleMax, transparencyThreshold, backgroundImage, displayImageAbove, drawAxisLabels));
}
public static Bitmap Colorbar(Colormap cmap, int width, int height, bool vertical = false)
{
if (width < 1 || height < 1)
{
return(null);
}
Bitmap bmp = new Bitmap(width, height);
using (Graphics gfx = Graphics.FromImage(bmp))
using (Pen pen = new Pen(Color.Magenta))
{
if (vertical)
{
for (int y = 0; y < height; y++)
{
double fraction = (double)y / (height);
pen.Color = cmap.GetColor(fraction);
gfx.DrawLine(pen, 0, height - y - 1, width - 1, height - y - 1);
}
}
else
{
for (int x = 0; x < width; x++)
{
double fraction = (double)x / width;
pen.Color = cmap.GetColor(fraction);
gfx.DrawLine(pen, x, 0, x, height - 1);
}
}
}
return(bmp);
}
public void CreateUnsafe_AvailableName_ColormapNameMatchrequested(string Name)
{
var factory = new ColormapFactory();
ScottPlot.Drawing.Colormap result = factory.CreateUnsafe(Name);
Assert.AreEqual(Name, result.Name);
}
/// <summary>
/// Add a colorbar to display a colormap beside the data area
/// </summary>
public Colorbar AddColorbar(Drawing.Colormap colormap = null, int space = 100)
{
var cb = new Colorbar(colormap);
Add(cb);
YAxis2.SetSizeLimit(min: space);
return(cb);
}
public void CreateUnsafe_NotAvailableName_Throws(string Name)
{
var factory = new ColormapFactory();
Assert.Throws <ArgumentOutOfRangeException>(() =>
{
ScottPlot.Drawing.Colormap result = factory.CreateUnsafe(Name);
});
}
public static Color[] GetColors(double[] intensities, Colormap colorMap)
{
Color[] colors = new Color[intensities.Length];
for (int i = 0; i < intensities.Length; i++)
{
byte pixelIntensity = (byte)Math.Max(Math.Min(intensities[i] * 255, 255), 0);
var(r, g, b) = colorMap.GetRGB(pixelIntensity);
colors[i] = Color.FromArgb(255, r, g, b);
}
return(colors);
}
public static int[] GetRGBAs(double[] intensities, Colormap colorMap, double minimumIntensity = 0)
{
int[] rgbas = new int[intensities.Length];
for (int i = 0; i < intensities.Length; i++)
{
byte pixelIntensity = (byte)Math.Max(Math.Min(intensities[i] * 255, 255), 0);
var(r, g, b) = colorMap.GetRGB(pixelIntensity);
byte alpha = pixelIntensity < minimumIntensity ? (byte)0 : (byte)255;
byte[] argb = { b, g, r, alpha };
rgbas[i] = BitConverter.ToInt32(argb, 0);
}
return(rgbas);
}
/// <summary>
/// Add a heatmap to the plot
/// </summary>
public Heatmap AddHeatmap(double[,] intensities, Drawing.Colormap colormap = null, bool lockScales = true)
{
if (lockScales)
{
AxisScaleLock(true);
}
var plottable = new Heatmap();
plottable.Update(intensities, colormap);
Add(plottable);
return(plottable);
}
/// <summary>
/// Add a colorbar to display a colormap beside the data area
/// </summary>
/// <param name="colormap">Colormap to display in this colorbar</param>
/// <param name="space">The size of the right axis will be set to this number of pixels to make room for the colorbar</param>
/// <param name="rightSide">If false the colorbar will be displayed on the left edge of the plot.</param>
/// <returns>the colorbar that was just created</returns>
public Colorbar AddColorbar(Drawing.Colormap colormap = null, int space = 100, bool rightSide = true)
{
var cb = new Colorbar(colormap);
if (rightSide)
{
cb.Edge = Renderable.Edge.Right;
YAxis2.SetSizeLimit(min: space);
}
else
{
cb.Edge = Renderable.Edge.Left;
YAxis.SetSizeLimit(min: space);
}
Add(cb);
return(cb);
}
public VectorField PlotVectorField(
Statistics.Vector2[,] vectors,
double[] xs,
double[] ys,
string label = null,
Color?color = null,
Drawing.Colormap colormap = null,
double scaleFactor = 1
)
{
var vectorField = new VectorField(vectors, xs, ys,
colormap, scaleFactor, color ?? settings.GetNextColor())
{
label = label
};
Add(vectorField);
return(vectorField);
}
/// <summary>
/// Add a heatmap to the plot automatically-sized so each cell is 1x1.
/// </summary>
/// <param name="intensities">2D array of intensities.
/// WARNING: Rendering artifacts may appear for arrays larger than Bitmap can support (~10M total values).</param>
/// <param name="colormap"></param>
/// <param name="lockScales">If true, AxisScaleLock() will be called to ensure heatmap cells will be square.</param>
/// <returns>
/// Returns the heatmap that was added to the plot.
/// Act on its public fields and methods to customize it or update its data.
/// </returns>
public Heatmap AddHeatmap(double[,] intensities, Drawing.Colormap colormap = null, bool?lockScales = null)
{
var plottable = new Heatmap();
plottable.Update(intensities, colormap);
Add(plottable);
if (lockScales.HasValue && lockScales.Value == true)
{
AxisScaleLock(true);
}
if (lockScales is null && plottable.IsDefaultSizeAndLocation)
{
AxisScaleLock(true);
}
return(plottable);
}
public PlottableHeatmap PlotHeatmap(
double[,] intensities,
Drawing.Colormap colormap = null,
string label = null,
double[] axisOffsets = null,
double[] axisMultipliers = null,
double?scaleMin = null,
double?scaleMax = null,
double?transparencyThreshold = null,
Bitmap backgroundImage = null,
bool displayImageAbove = false,
bool drawAxisLabels = true
)
{
if (colormap == null)
{
colormap = Drawing.Colormap.Viridis;
}
if (axisOffsets == null)
{
axisOffsets = new double[] { 0, 0 }
}
;
if (axisMultipliers == null)
{
axisMultipliers = new double[] { 1, 1 }
}
;
PlottableHeatmap heatmap = new PlottableHeatmap(intensities, colormap, label, axisOffsets, axisMultipliers, scaleMin, scaleMax, transparencyThreshold, backgroundImage, displayImageAbove, drawAxisLabels);
Add(heatmap);
MatchAxis(this);
Ticks(false, false);
Layout(y2LabelWidth: 180);
return(heatmap);
}
}
}
public PlottableVectorField PlotVectorField(
Statistics.Vector2[,] vectors,
double[] xs,
double[] ys,
string label = null,
Color?color = null,
Drawing.Colormap colormap = null,
double scaleFactor = 1
)
{
if (!color.HasValue)
{
color = settings.GetNextColor();
}
var vectorField = new PlottableVectorField(vectors, xs, ys, label, color.Value, colormap, scaleFactor);
Add(vectorField);
return(vectorField);
}
public PlottableHeatmap PlotHeatmap(
double[,] intensities,
Drawing.Colormap colormap = null,
string label = null,
double[] axisOffsets = null,
double[] axisMultipliers = null,
double?scaleMin = null,
double?scaleMax = null,
double?transparencyThreshold = null,
Bitmap backgroundImage = null,
bool displayImageAbove = false,
bool drawAxisLabels = true
)
{
PlottableHeatmap heatmap = new PlottableHeatmap()
{
label = label,
AxisOffsets = axisOffsets ?? new double[] { 0, 0 },
AxisMultipliers = axisMultipliers ?? new double[] { 1, 1 },
ScaleMin = scaleMin,
ScaleMax = scaleMax,
TransparencyThreshold = transparencyThreshold,
BackgroundImage = backgroundImage,
DisplayImageAbove = displayImageAbove,
ShowAxisLabels = drawAxisLabels,
Colormap = colormap ?? Drawing.Colormap.Viridis
};
heatmap.UpdateData(intensities);
Add(heatmap);
MatchAxis(this);
Ticks(false, false);
Layout(y2LabelWidth: 180);
return(heatmap);
}
public void Test_Colormap_GetColormapByName()
{
ScottPlot.Drawing.Colormap cmap = ScottPlot.Drawing.Colormap.GetColormapByName("Inferno");
Assert.IsNotNull(cmap);
Assert.AreEqual("Inferno", cmap.Name);
}
[EditorBrowsable(EditorBrowsableState.Never)] // Prevents suggestions in Intellisense for downstream users. Still shows up while editing this assembly.
public CoordinatedHeatmap AddHeatMapCoordinated(double[,] intensities, double?xMin = null, double?xMax = null, double?yMin = null, double?yMax = null, Drawing.Colormap colormap = null)
{
return(AddHeatmapCoordinated(intensities, xMin, xMax, yMin, yMax, colormap));
}
public void Create_AvailableName_NotThrows(string Name)
{
var factory = new ColormapFactory();
ScottPlot.Drawing.Colormap result = factory.Create(Name);
}
/// <summary>
/// Add heatmap to the plot stretched to fit the given dimensions.
/// Unlike the regular heatmap which gives each cell a size of 1x1 and starts at the axis origin,
/// this heatmap stretches the array so that it covers the defined X and Y spans.
/// </summary>
/// <param name="intensities">2D array of intensities.
/// WARNING: Rendering artifacts may appear for arrays larger than Bitmap can support (~10M total values).</param>
/// <param name="xMin">position of the left edge of the far left column</param>
/// <param name="xMax">position of the left edge of the far right column</param>
/// <param name="yMin">position of the upper edge of the bottom row</param>
/// <param name="yMax">position of the upper edge of the top row</param>
/// <param name="colormap"></param>
/// <returns>
/// Returns the heatmap that was added to the plot.
/// Act on its public fields and methods to customize it or update its data.
/// </returns>
public CoordinatedHeatmap AddHeatMapCoordinated(double[,] intensities, double?xMin = null, double?xMax = null, double?yMin = null, double?yMax = null, Drawing.Colormap colormap = null)
{
var plottable = new CoordinatedHeatmap();
// Solve all possible null combinations, if the boundaries are only partially provided use Step = 1;
if (xMin == null && xMax == null)
{
plottable.XMin = 0;
plottable.XMax = 0 + intensities.GetLength(0);
}
else if (xMin == null)
{
plottable.XMax = xMax.Value;
plottable.XMin = xMax.Value - intensities.GetLength(0);
}
else if (xMax == null)
{
plottable.XMin = xMin.Value;
plottable.XMax = xMin.Value + intensities.GetLength(0);
}
else
{
plottable.XMin = xMin.Value;
plottable.XMax = xMax.Value;
}
if (yMin == null && yMax == null)
{
plottable.YMin = 0;
plottable.YMax = 0 + intensities.GetLength(1);
}
else if (yMin == null)
{
plottable.YMax = yMax.Value;
plottable.YMin = yMax.Value - intensities.GetLength(1);
}
else if (yMax == null)
{
plottable.YMin = yMin.Value;
plottable.YMax = yMin.Value + intensities.GetLength(1);
}
else
{
plottable.YMin = yMin.Value;
plottable.YMax = yMax.Value;
}
plottable.Update(intensities, colormap);
Add(plottable);
return(plottable);
}
