C++ (Cpp) Gaussian::getPointAt Examples

Example #1

File: SMCEnvironmentViz.cpp Project: buhrmann/dynmx

//----------------------------------------------------------------------------------------------------------------------  
void SMCEnvironmentViz::drawGaussian(const Gaussian& g) const
{
  const int numPoints = 50;
  ci::Vec2f start, end;
  
  // Three sigmas cover approx. 99% of the gaussian
  float a = -3.0 * g.getW();
  float inc = 6.0 * g.getW() / numPoints;
  
  ci::Path2d path;
  path.moveTo(g.getPointAt(a));
  for(int i = 0; i < numPoints; ++i)
  {
    end = g.getPointAt((a+inc));
    path.lineTo(end);
    a += inc;
  }
  path.close();
  
  glColor4f(0.5,0.5,0.5,0.25);
  glDisable(GL_CULL_FACE);
  glDisable(GL_DEPTH_TEST);
  ci::gl::drawSolid(path);
  glEnable(GL_CULL_FACE);
  glEnable(GL_DEPTH_TEST);
}