File talk:LogisticMap BifurcationDiagram.png

non-zero pixels in that column

Hi thx for grat image.

What program you have used to creat it ?

What means "non-zero pixel" ? On your image points of orbit are black ( color=0), but you say : "calculated for each value of r and for each x value, the corresponding (x,r) pixel in the image was incremented by one". It means that color becomes more light.

I can do almost all you tips except "even out the intensities".

Here is my C code:

for(iY=0;iY<iYmax;++iY)
          for(iX=0;iX<iXmax;++iX)
            color[iY][iX]=0;
            
/* compute */    
for(iX=0;iX<iXmax;++iX)
  { 
    x=xMin+iX*dx;
    y=0.25;
    for(i=0;i<imax;++i) y=x*y*(1-y); 
     for(i=0;i<iMax;++i)
      {
        y=x*y*(1-y);
        iY=(int)((yMax-y)/dy);
        if (x<3.57) 
        color[iY][iX]=255;
        else if(color[iY][iX]<255)color[iY][iX]+=1; /*intensity of color is proportinal to pixel hits */
      }       
  }

Can you tell more about "even out the intensities" ? --Adam majewski (talk) 15:45, 3 August 2008 (UTC)