From 4cd6ee318935cf9566eb3553227ec5e69b706cbc Mon Sep 17 00:00:00 2001
From: Andreas Kloeckner <inform@tiker.net>
Date: Tue, 27 Oct 2015 01:58:42 -0500
Subject: [PATCH] Introduce methods from simplex element group in
MeshElementGroup
---
meshmode/mesh/__init__.py | 22 ++++++++++++++++++++++
1 file changed, 22 insertions(+)
diff --git a/meshmode/mesh/__init__.py b/meshmode/mesh/__init__.py
index f96d7182..e37d8e2f 100644
--- a/meshmode/mesh/__init__.py
+++ b/meshmode/mesh/__init__.py
@@ -128,6 +128,11 @@ class MeshElementGroup(Record):
*Not* the ambient dimension, see :attr:`Mesh.ambient_dim`
for that.
+ .. automethod:: face_vertex_indices
+ .. automethod:: vertex_unit_coordinates
+
+ .. attribute:: nfaces
+
.. automethod:: __eq__
.. automethod:: __ne__
"""
@@ -186,6 +191,23 @@ class MeshElementGroup(Record):
def nunit_nodes(self):
return self.unit_nodes.shape[-1]
+ def face_vertex_indices(self):
+ """Return a tuple of tuples indicating which vertices
+ (in mathematically positive ordering) make up each face
+ of an element in this group.
+ """
+ raise NotImplementedError()
+
+ def vertex_unit_coordinates(self):
+ """Return an array of shape ``(nfaces, dim)`` with the unit
+ coordinates of each vertex.
+ """
+ raise NotImplementedError()
+
+ @property
+ def nfaces(self):
+ return len(self.face_vertex_indices())
+
def __eq__(self, other):
return (
type(self) == type(other)
--
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