adding h,k,l property to BVects

py4DSTEM/braggvectors/braggvectors.py

@@ -336,7 +336,7 @@ class BVects:
     """
     Enables
 
-        >>> v.qx,v.qy,v.I
+        >>> v.qx,v.qy,v.I, optionally, v.h,v.k,v.l
 
     -like access to a collection of Bragg vector.
     """
@@ -361,11 +361,32 @@ def I(self):
     def data(self):
         return self._data
 
+    @property
+    def h(self):
+        try:
+            return self._data["h"]
+        except ValueError:
+            raise AttributeError("h indicies not set")
+
+    @property
+    def k(self):
+        try:
+            return self._data["k"]
+        except ValueError:
+            raise AttributeError("k indicies not set")
+
+    @property
+    def l(self):
+        try:
+            return self._data["l"]
+        except ValueError:
+            raise AttributeError("l indicies not set")
+
     def __repr__(self):
         space = " " * len(self.__class__.__name__) + "  "
         string = f"{self.__class__.__name__}( "
         string += f"A set of {len(self.data)} bragg vectors."
-        string += " Access data with .qx, .qy, .I, or .data.)"
+        string += " Access data with .qx, .qy, .I, or .data. Optionally .h, .k, and.l, if indexed)"
         return string