class SDF:
    def __init__(self, stl_file):
        import igl
        self.V, self.F = igl.read_triangle_mesh(stl_file)

    def query(self,queries):
        import igl
        sdf_value = igl.signed_distance(queries, self.V, self.F)[0]
        return sdf_value

    def query_dev(self,queries):
        import igl
        ret_tuple = igl.signed_distance(queries, self.V, self.F)
        sdf_value = ret_tuple[0]
        closest_F_idx = ret_tuple[1]
        return sdf_value, closest_F_idx


import igl
import numpy as np
def query(queries,V,F):
    if F.ndim==1: 
        F=F[None,:]
    if queries.ndim==1:
        queries=queries[None,:]
    sdf_value=igl.signed_distance(queries, V, F)[0]
    return sdf_value

def query_dev(queries,V,F):
    import  numpy as np
    if F.ndim==1: 
        F=F[None,:]
    if queries.ndim==1:
        queries=queries[None,:]
    sdf_value=igl.signed_distance(queries, V, F)[0]
    F_idx = igl.signed_distance(queries, V, F)[1]
    return np.vstack((sdf_value, F_idx))

# stl_file='/home/cflin/MatlabCode/TopCSG/SolidWoks Files/BearingBracket/BearingB.STL'
# sdf=SDF(stl_file)
# ret=query_dev(np.array([[3.,1,3],[2.,3,3]]),sdf.V,sdf.F);
# def test_ret():
#     return 1,2

# a,b=test_ret()
# pass

# tarr=np.array([3])
# print(tarr.ndim)
# print(tarr.shape)
# tarr=tarr[None,:]
# print(tarr.ndim)
# print(tarr.shape)