63 lines
1.4 KiB
Python
63 lines
1.4 KiB
Python
from baker import get_phis, get_phis_3D
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from baker.tools import smblog
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TOL = 1e-8
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def contains(X, R):
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"""
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tests if X (point) is in R (a simplex,
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represented by a list of n-degree coordinates)
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it now correctly checks for 2/3-D points
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"""
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if len(X) == 2:
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phis = get_phis(X, R)
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elif len(X) == 3:
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phis = get_phis_3D(X, R)
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r = True
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if [i for i in phis if i < 0.0 - TOL]:
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r = False
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return r
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class face(object):
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def __init__(self, name):
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self.name = name
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self.verts = []
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self.neighbors = []
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def add_vert(self, v):
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"""
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v should be an index into grid.points
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"""
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self.verts.append(v)
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def add_neighbor(self, n):
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"""
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reference to another face object
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"""
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self.neighbors.append(n)
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def contains(self, X, G):
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"""
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X = point of interest
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G = corrensponding grid object (G.points)
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because of the way i'm storing things,
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a face simply stores indicies, and so one
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must pass in a reference to the grid object
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containing real points.
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this simply calls grid.simplex.contains
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"""
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return contains(X, [G.points[i] for i in self.verts])
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def __str__(self):
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neighbors = [i.name for i in self.neighbors]
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return '%s: verts: %s neighbors: [%s]' %\
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(
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self.name,
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self.verts,
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", ".join(neighbors)
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)
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