public override void GenerateNewFrame(float dt)
{
//AnimationFrame output = new AnimationFrame();
Reduce(.65f);
Random random = new Random();
double xFactor = Dome.LEDS_PER_RIB / Math.Sqrt(2.0f);
double yFactor = Dome.LEDS_PER_RIB / Math.Sqrt(2.0f);
if (m_XIncreasing)
{
m_X += 1.0f * m_UpdatePeriod;
if (m_X >= m_XMax)
{
m_X = m_XMax;
m_XIncreasing = false;
}
}
else
{
m_X -= 1.0f * m_UpdatePeriod;
if (m_X <= -m_XMax)
{
m_X = -m_XMax;
m_XIncreasing = true;
}
}
double wX = m_X;
double wY = m_X + 4.0f;
// change this to change the parameterization of the inner circle
int thetaSteps = 360; // 36
double radiansPerStep = (double)(2.0f * Math.PI / thetaSteps);
// not sure if we want to really modulate this at all
double c = dt;
for (int i = 0; i < thetaSteps; i++)
{
double theta = (double)i * radiansPerStep;
double x = xFactor * Math.Sin((wX * theta) + c);
double y = yFactor * Math.Sin(wY * theta);
double r = Math.Sqrt(Math.Pow(x, 2.0f) + Math.Pow(y, 2.0f));
double drawTheta = Math.Atan2(y, x);
// ATan2 returns values from of -π≤θ≤π
drawTheta += Math.PI;
int rib = Dome.GetNearestRibByRadians(drawTheta);
Color newColor = ColorManager.RandomColor();
m_CurrentFrame.SetLedColor(rib, (int)r, newColor);
}
//m_CurrentFrame = output;
}
public override void GenerateNewFrame(float dt)
{
Reduce(.85f);
//AnimationFrame output = new AnimationFrame();
Random random = new Random();
m_currentSinParameter += (m_UpdatePeriod * m_sinWaveIncrement);
//double a = (float)Dome.LEDS_PER_RIB;
double currentSin = Math.Sin(m_currentSinParameter);
currentSin += 1.0f;
currentSin *= 1.5f;
int totalNodes = (int)(currentSin * (float)(m_maxNodes - m_minNodes)); // number of nodes along the structure
totalNodes += m_minNodes;
double w = Dome.LEDS_PER_RIB; // radius of circle to fill (movie is 300 pixels wide)
double phi = (Math.Sqrt(5.0f) + 1.0f) / 2.0f - 1.0f; // the golden ratio
double ga = phi * 2.0f * Math.PI; // the golden angle - used for phyllotaxis on many plants
for (int i = 1; i <= totalNodes; i++)
{
double theta = i * ga; // angle of phyllotaxis
double r = Math.Log(1.0f + i * (Math.E - 1.0f) / totalNodes); // logarithmic distance to edge of movie (0-1)
r *= w;
r--;
// make sure that this theta get bounded from [0,2π]
int radians = (int)(theta / (1.0f * Math.PI));
theta = theta - ((double)radians * (1.0f * Math.PI));
int rib = Dome.GetNearestRibByRadians(theta);
m_CurrentFrame.SetLedColor(rib, (int)r, m_Color);
// for some reason, this was only filling in from 0 to PI
// so, i guess we'll draw the other side? i dunno... :)
theta += Math.PI;
rib = Dome.GetNearestRibByRadians(theta);
m_CurrentFrame.SetLedColor(rib, (int)r, m_Color);
}
//m_CurrentFrame = output;
}
public override void GenerateNewFrame(float dt)
{
Reduce(.9f);
//AnimationFrame output = new AnimationFrame();
m_currentSinParameter += m_sinWaveIncrement;
// change this to change the parameterization of the function
int thetaSteps = 360; // 36
double radiansPerStep = (double)(2.0f * Math.PI / thetaSteps);
double a = (float)Dome.LEDS_PER_RIB;
double thetaNaught = 0.0f;
double currentSin = Math.Sin(m_currentSinParameter);
currentSin += 1.0f;
currentSin *= 0.5f;
double k = currentSin * m_kMax;
for (int i = 0; i < thetaSteps; i++)
{
double theta = (double)i * radiansPerStep;
double radius = (a * Math.Cos((k * theta) + thetaNaught)) - 1;
if (radius > 49.0)
{
radius = 49.0;
}
else if (radius < 0.0)
{
radius = 0.0;
}
int rib = Dome.GetNearestRibByRadians(theta);
m_CurrentFrame.SetLedColor(rib, (int)radius, ColorManager.RandomColor());
}
//m_CurrentFrame = output;
}
public override void GenerateNewFrame(float dt)
{
//AnimationFrame output = new AnimationFrame();
Reduce(.75f);
Random random = new Random();
m_currentSinParameter += m_sinWaveIncrement;
double a = (float)Dome.LEDS_PER_RIB;
double currentSin = Math.Sin(m_currentSinParameter);
currentSin += 1.0f;
currentSin *= 0.5f;
double b = (a * currentSin);
// change this to change the parameterization of the inner circle
int thetaSteps = 360; // 36
double radiansPerStep = (double)(2.0f * Math.PI / thetaSteps);
for (int i = 0; i < thetaSteps; i++)
{
double theta = (double)i * radiansPerStep;
double x = ((a - b) * Math.Cos(theta)) + (b * Math.Cos((theta * (a - b)) / b));
double y = ((a - b) * Math.Sin(theta)) - (b * Math.Sin((theta * (a - b)) / b));
double r = Math.Sqrt(Math.Pow(x, 2.0f) + Math.Pow(y, 2.0f)) - 1;
double drawTheta = Math.Atan2(y, x);
// ATan2 returns values from of -π≤θ≤π
drawTheta += Math.PI;
int rib = Dome.GetNearestRibByRadians(drawTheta);
Color newColor = ColorManager.RandomColor();
m_CurrentFrame.SetLedColor(rib, (int)r, newColor);
}
//m_CurrentFrame = output;
}