Re: Symmetry in joseki and fuseki

[Compgo123@xxxxxxx]

Mousheng Xu wrote:

>  8? I thought it was 16.
>   2 color * 4 rotation * 2 reflection = 16?
>    Thanks.

I agree with you. I was only considering the geometric symmetries. By the way
I apologize that I made couple typing errors in my last message. The formula
should be

for forward transformation:

X=symop[0][i]*x+symop[1][i]*y
Y=symop[2][i]*x+symop[3][i]*y

for reverse transformation:

x=symopb[0][i]*X+symopb[1][i]*Y
y=symopb[2][i]*X+symopb[3][i]*Y

Thanks.

Dan Liu