fixed encoder3D and optimMaxRe3D

hoa.lib

@@ -312,7 +312,7 @@ with {
 	order(index) = int(index - int(degree(index) * int(degree(index) + 1)));
 
 	// The spherical harmonics
-	y(l, m, theta, phi) =  e(m, theta) * k(l, m) * p(l, m, cos(phi + PI * 0.5))
+	y(l, m, theta, phi) =  e(m, theta) * k(l, m) * p(l, m, cos(phi + ma.PI * 0.5))
 	with {	
 		// The associated Legendre polynomial
 		// If l = 0   => p = 1
@@ -392,7 +392,7 @@ optimMaxRe3D(N) = par(i, (N+1) * (N+1), MaxRe(N, degree(i), _))
 with {
 	// The degree l of the harmonic[l, m]	
 	degree(index)  = int(sqrt(index));
-   	MaxRe(N, l, _)= _ * cos(l  / (2*N+2) * PI);
+   	MaxRe(N, l, _)= _ * cos(l  / (2*N+2) * ma.PI);
 };