private Vector2 CalculatePosition(NeoPixelSetup neoPixelSetup, NeoPixelStrip strip, int pixelNumber)
{
if (strip.StripPosition == StripPosition.Bottom)
{
if (strip.RowIndex % 2 == 0)
{
return(CalculateBottomLeftPosition(neoPixelSetup, strip, pixelNumber));
}
else
{
return(CalculateBottomRightPosition(neoPixelSetup, strip, pixelNumber));
}
}
else
{
if (strip.RowIndex % 2 == 0)
{
return(CalculateTopLeftPosition(neoPixelSetup, strip, pixelNumber));
}
else
{
return(CalculateTopRightPosition(neoPixelSetup, strip, pixelNumber));
}
}
}
private Vector2 CalculateTopRightPosition(NeoPixelSetup neoPixelSetup, NeoPixelStrip strip, int pixelNumber)
{
float distanceBetweenPixels = neoPixelSetup.StripLength / strip.Pixels.Length;
double triangleSide = CalculateIsoscelesRightTriangleSide(distanceBetweenPixels);
float y = (float)(pixelNumber * triangleSide + strip.Pixels.Length * triangleSide);
float x = (float)(pixelNumber * triangleSide + strip.RowIndex * neoPixelSetup.DistanceBetweenStrips);
return(new Vector2(x, y));
}
protected static void StartNeoPixel()
{
strip = new NeoPixelStrip(150, "neopixelstrip01");
CreateCyclesCollection();
neoPixelThread = new Thread(StartNeoPixelThread);
neoPixelThread.Priority = ThreadPriority.Lowest;
neoPixelThread.Start();
}
public static void Main()
{
strip = new NeoPixelStrip(50, "LaughOMeter");
analogPin = new AnalogInput(Cpu.AnalogChannel.ANALOG_3);
while (true)
{
try
{
Debug.Print(analogPin.Read().ToString());
strip.SetLevel(((ushort)(analogPin.Read() * 100 / maxVal)), palette);
}
catch { }
Thread.Sleep(500);
}
}
public static NeoPixelSetup CreateNeoPixelSetup(
IEnumerable <string> driverNames,
int stripsPerDriver,
int pixelsPerStrip)
{
List <NeoPixelDriver> drivers = new List <NeoPixelDriver>();
int stripCount = 0;
foreach (var driverName in driverNames)
{
var driver = new NeoPixelDriver()
{
Name = driverName
};
for (int i = 0; i < stripsPerDriver; i++)
{
var strip = new NeoPixelStrip()
{
Pixels = new Color[pixelsPerStrip],
StripPosition = stripCount % 2 == 0 ? StripPosition.Bottom : StripPosition.Top,
RowIndex = stripCount / 2
};
stripCount++;
for (int j = 0; j < pixelsPerStrip; j++)
{
strip.Pixels[j] = Color.Black;
}
driver.Strips.Add(strip);
}
drivers.Add(driver);
}
//Measurements from RL
float distanceBetweenStrips = 10.666f;
float stripLength = 75f;
return(new NeoPixelSetup()
{
Drivers = drivers,
DistanceBetweenStrips = distanceBetweenStrips,
StripLength = stripLength,
});
}
/// <summary>
/// Get the XY position of a given pixel.
/// (0,0) is bottom left
/// Expects the angle to be 45 degrees between pixels
/// </summary>
public Vector2 GetPosition(NeoPixelStrip strip, int pixelIndex)
{
return(precalculatedPixelPositions[strip][pixelIndex]);
}
