Added init and show for Meshes

bindings/py3devil1.py

@@ -333,6 +333,31 @@ class MEShHeader:
     def show(self):
         devil1geo.printmeshheader(self.cstruct)
 
+    def getbatchno(self):
+        return self.cstruct.contents.numBatch
+
+class MEsh:
+    def __init__(self, i, filedata):
+        self.cstruct = Mesh()
+        if filedata:
+            mh = MEShHeader(i, filedata)
+            # allocate memory for the size of batch * number of batches
+            memsize = ctypes.sizeof(Batch) * mh.getbatchno()
+            self.cstruct.b = ctypes.cast(ctypes.create_string_buffer(memsize), 
+                                         ctypes.POINTER(Batch))
+            if not devil1geo.getmesh(ctypes.byref(self.cstruct), 
+                              i, 
+                              filedata, 
+                              len(filedata)):
+                print("failed to get mesh")
+        return
+
+    def show(self):
+        if self.cstruct.b:
+            devil1geo.printbatch(self.cstruct.b)
+        else:
+            print("nothing to show")
+
 #--------------------------------------+
 #       Regular Python
 #--------------------------------------+
@@ -418,7 +443,8 @@ if __name__ == "__main__":
             gh.show()
             mh = MEShHeader(3, data)
             mh.show()
-
+            m = MEsh(0, data)
+            m.show()
 #---------------------------------------+
    # main()
     mainx()