From d5b18300cc0ce85393edd16f0155c5b2841dab3c Mon Sep 17 00:00:00 2001
From: Dave Goodwin <dgg@caltech.edu>
Date: Sun, 23 Apr 2006 07:27:10 +0000
Subject: [PATCH] initial import

---
 Cantera/python/Cantera/Edge.py | 80 ++++++++++++++++++++++++++++++++++
 1 file changed, 80 insertions(+)
 create mode 100644 Cantera/python/Cantera/Edge.py

diff --git a/Cantera/python/Cantera/Edge.py b/Cantera/python/Cantera/Edge.py
new file mode 100644
index 000000000..a6c661186
--- /dev/null
+++ b/Cantera/python/Cantera/Edge.py
@@ -0,0 +1,80 @@
+
+import string
+import os
+
+from constants import *
+from SurfacePhase import EdgePhase
+from Kinetics import Kinetics
+import XML
+
+__revision__ = "$Id$"
+
+class Edge(EdgePhase, Kinetics):    
+    """
+    One-dimensional edge between two surfaces.
+    
+    Instances of class Edge represent reacting 1D edges between 
+    between 2D surfaces. Class Edge defines no methods of its
+    own. All of its methods derive from either EdgePhase or Kinetics.
+
+    Function importInterface should usually be used to build an
+    Edge object from a CTI file definition, rather than calling
+    the Interface constructor directly.
+
+    See: EdgePhase, Kinetics, importInterface
+    """
+    def __init__(self, src="", root=None, surfaces=[]):
+        """
+        src - CTML or CTI input file name. If more than one phase is
+        defined in the file, src should be specified as 'filename\#id'
+        If the file is not CTML, it will be run through the CTI -> CTML
+        preprocessor first.
+
+        root - If a CTML tree has already been read in that contains
+        the definition of this interface, the root of this tree can be
+        specified instead of specifying 'src'.
+
+        phases - A list of all objects representing the neighboring
+        surface phases which participate in the reaction mechanism.
+
+        """
+        self.ckin = 0
+        self._owner = 0
+        self.verbose = 1
+
+        # src has the form '<filename>#<id>'
+        fn = src.split('#')
+        id = ""
+        if len(fn) > 1:
+            id = fn[1]        
+            fn = fn[0]
+        
+        # read in the root element of the tree if not building from
+        # an already-built XML tree. Enable preprocessing if the film
+        # is a .cti file instead of XML.
+        if src and not root:
+            root = XML.XML_Node(name = 'doc', src = fn, preprocess = 1)
+
+        # If an 'id' tag was specified, find the node in the tree with
+        # that tag
+        if id:
+            s = root.child(id = id)
+
+        # otherwise, find the first element with tag name 'phase'
+        # (1D, 2D and 3D phases use the CTML tag name 'phase'
+        else:
+            s = root.child(name = "phase")            
+
+        # build the surface phase 
+        EdgePhase.__init__(self, xml_phase=s)
+
+        # build the reaction mechanism. This object (representing the
+        # surface phase) is added to the end of the list of phases
+        Kinetics.__init__(self, xml_phase=s, phases=surfaces+[self])
+
+
+    def __del__(self):
+        """Delete the Edge instance."""
+        Kinetics.__del__(self)
+        EdgePhase.__del__(self)
+