public ColorRange1D ComputeColorRange(EngineController engine)
{
List <Color> colors;
List <double> parameters;
// If there are colors supplied
if (InPorts[0].Connectors.Any())
{
var colorsNode = InPorts[0].Connectors[0].Start.Owner;
var colorsIndex = InPorts[0].Connectors[0].Start.Index;
var startId = colorsNode.GetAstIdentifierForOutputIndex(colorsIndex).Name;
var colorsMirror = engine.GetMirror(startId);
colors = GetColorsFromMirrorData(colorsMirror);
}
else
{
colors = DefaultColorRanges.Analysis;
}
// If there are indices supplied
if (InPorts[1].Connectors.Any())
{
var valuesNode = InPorts[1].Connectors[0].Start.Owner;
var valuesIndex = InPorts[1].Connectors[0].Start.Index;
var endId = valuesNode.GetAstIdentifierForOutputIndex(valuesIndex).Name;
var valuesMirror = engine.GetMirror(endId);
parameters = GetValuesFromMirrorData(valuesMirror);
}
else
{
parameters = CreateParametersForColors(colors);
}
return(ColorRange1D.ByColorsAndParameters(colors, parameters));
}
public void ColorRange1D_ByColorsAndParameters_HasSomeColorsIfNothingProvided()
{
var colors = new List <Color>();
var parameters = new List <double>();
var range = ColorRange1D.ByColorsAndParameters(colors, parameters);
Assert.AreEqual(range.GetColorAtParameter(0), red);
Assert.AreEqual(range.GetColorAtParameter(1), blue);
}
public void ColorRange1D_ByColorsAndParameters_HasSomeColorsIfNothingProvided()
{
var colors = new List <Color>();
var parameters = new List <double>();
var range = ColorRange1D.ByColorsAndParameters(colors, parameters);
Assert.AreEqual(ColorRange1D.GetColorAtParameter(range, 0), DefaultColorRanges.Analysis.First());
Assert.AreEqual(ColorRange1D.GetColorAtParameter(range, 1), DefaultColorRanges.Analysis.Last());
}
public void ColorRange1D_ByColorsAndParameters_HandlesNullColors()
{
var parameters = new List <double> {
0.0, 0.5, 1.0
};
var range = ColorRange1D.ByColorsAndParameters(null, parameters);
Assert.AreEqual(range.GetColorAtParameter(0), red);
Assert.AreEqual(range.GetColorAtParameter(1), blue);
}
public void ColorRange1D_ByColorsAndParameters_HandlesNullColors()
{
var parameters = new List <double> {
0.0, 0.5, 1.0
};
var range = ColorRange1D.ByColorsAndParameters(null, parameters);
Assert.AreEqual(ColorRange1D.GetColorAtParameter(range, 0), DefaultColorRanges.Analysis.First());
Assert.AreEqual(ColorRange1D.GetColorAtParameter(range, 1), DefaultColorRanges.Analysis.Last());
}
public void ColorRange1D_ByColorsAndParameters_HandlesNullParameters()
{
var colors = new List <Color> {
red, orange, blue
};
var range = ColorRange1D.ByColorsAndParameters(colors, null);
Assert.AreEqual(range.GetColorAtParameter(0), red);
Assert.AreEqual(range.GetColorAtParameter(0.5), orange);
Assert.AreEqual(range.GetColorAtParameter(1), blue);
}
public void ColorRange1D_ByColorsAndParameters_HasSomeParametersIfNoneProvided()
{
var colors = new List <Color>()
{
red, blue
};
var parameters = new List <double>();
var range = ColorRange1D.ByColorsAndParameters(colors, parameters);
Assert.AreEqual(ColorRange1D.GetColorAtParameter(range, 0), red);
Assert.AreEqual(ColorRange1D.GetColorAtParameter(range, 1), blue);
}
public void ColorRange1D_ByColorsAndParameters_RemapsParametersThatAreOutOfRange()
{
var colors = new List <Color> {
red, blue
};
var parameters = new List <double> {
26.5, -13.2
};
var range = ColorRange1D.ByColorsAndParameters(colors, parameters);
Assert.AreEqual(range.GetColorAtParameter(0), blue);
Assert.AreEqual(range.GetColorAtParameter(1), red);
}
public void ColorRange1D_ByColorsAndParameters_MakesSolidColorRangeWithOneColor()
{
var colors = new List <Color> {
red
};
var parameters = new List <double> {
0.0
};
var range = ColorRange1D.ByColorsAndParameters(colors, parameters);
Assert.AreEqual(range.GetColorAtParameter(0), red);
Assert.AreEqual(range.GetColorAtParameter(1), red);
}
//http://gaggerostechnicalnotes.blogspot.com/2012/01/wpf-colors-scale.html
private WriteableBitmap CreateColorRangeBitmap(ColorRange1D colorRange)
{
const int width = 64;
const int height = 1;
var bitmap = new WriteableBitmap(width, height, 96, 96, PixelFormats.Bgra32, null);
var pixels = new uint[width * height];
for (var i = 1; i <= width; i++)
{
var t = (double)i / width;
var newColor = ColorRange1D.GetColorAtParameter(colorRange, t);
pixels[i - 1] = (uint)((255 << 24) + (newColor.Red << 16) + (newColor.Green << 8) + newColor.Blue);
}
bitmap.WritePixels(new Int32Rect(0, 0, width, height), pixels, width * 4, 0);
return(bitmap);
}
public void ColorRange1D_ByColorsAndParameters_ValidArgs()
{
var red = Color.ByARGB(255, 255, 0, 0);
var blue = Color.ByARGB(255, 0, 0, 255);
var colors = new List <Color> {
red, blue
};
var parameters = new List <double>()
{
0.0, 1.0
};
var range = ColorRange1D.ByColorsAndParameters(colors, parameters);
Assert.AreEqual(range.GetColorAtParameter(0), red);
Assert.AreEqual(range.GetColorAtParameter(1), blue);
}
internal static ColorRange1D CreateAnalyticalColorRange()
{
// Build some colors for a range
var c1 = Color.ByARGB(255, 255, 0, 0);
var c2 = Color.ByARGB(255, 255, 255, 0);
var c3 = Color.ByARGB(255, 0, 0, 255);
var colors = new List <Color>()
{
c1, c2, c3
};
var parameters = new List <double>()
{
0.0, 0.5, 1.0
};
var colorRange = ColorRange1D.ByColorsAndParameters(colors, parameters);
return(colorRange);
}
private void UpdateColorRange()
{
var s = dynamoViewModel.Model.Scheduler;
// prevent data race by running on scheduler
var t = new DelegateBasedAsyncTask(s, () =>
{
colorRange = colorRangeNode.ComputeColorRange(dynamoModel.EngineController);
});
// then update on the ui thread
t.ThenSend((_) =>
{
var bmp = CreateColorRangeBitmap(colorRange);
gradientImage.Source = bmp;
}, syncContext);
s.ScheduleForExecution(t);
}
