def evaluatePoint(self,surf,u,v,uder=0,vder=0):
""" Return point or 1st or 2nd parametric derivative
Input
surf: integer
0-based surface index
u: double
Parametric coordinate [0,1]
v: double
Parametric coordinate [0,1]
uder: integer
Order of the desired derivative in the u direction
vder: integer
Order of the desired derivative in the v direction
Output
return: double(3)
x-y-z values of the point or derivative requested
"""
ugroup = self.edge_group[abs(self.surf_edge[surf,0,0])-1]
vgroup = self.edge_group[abs(self.surf_edge[surf,1,0])-1]
ku = self.group_k[ugroup-1]
kv = self.group_k[vgroup-1]
mu = self.group_m[ugroup-1]
mv = self.group_m[vgroup-1]
P = PUBSlib.evaluatepoint(surf+1,uder,vder,ku,kv,mu,mv,self.nvar,self.nD,self.nC,self.nsurf,self.nedge,self.ngroup,self.nvert,u,v,self.surf_vert,self.surf_edge,self.edge_group,self.group_d,self.surf_index_C,self.edge_index_C,self.knot_index,self.C)
return P
def evaluatePoint(self, surf, u, v, uder=0, vder=0):
""" Return point or 1st or 2nd parametric derivative
Input
surf: integer
0-based surface index
u: double
Parametric coordinate [0,1]
v: double
Parametric coordinate [0,1]
uder: integer
Order of the desired derivative in the u direction
vder: integer
Order of the desired derivative in the v direction
Output
return: double(3)
x-y-z values of the point or derivative requested
"""
ugroup = self.edge_group[abs(self.surf_edge[surf, 0, 0]) - 1]
vgroup = self.edge_group[abs(self.surf_edge[surf, 1, 0]) - 1]
ku = self.group_k[ugroup - 1]
kv = self.group_k[vgroup - 1]
mu = self.group_m[ugroup - 1]
mv = self.group_m[vgroup - 1]
P = PUBSlib.evaluatepoint(
surf + 1, uder, vder, ku, kv, mu, mv, self.nvar, self.nD, self.nC,
self.nsurf, self.nedge, self.ngroup, self.nvert, u, v,
self.surf_vert, self.surf_edge, self.edge_group, self.group_d,
self.surf_index_C, self.edge_index_C, self.knot_index, self.C)
return P
