FEAT: adding features class

Author: pavanky

arrayfire/__init__.py

@@ -18,3 +18,4 @@
 from .lapack     import *
 from .signal     import *
 from .image      import *
+from .features   import *

arrayfire/features.py

@@ -0,0 +1,49 @@
+#######################################################
+# Copyright (c) 2015, ArrayFire
+# All rights reserved.
+#
+# This file is distributed under 3-clause BSD license.
+# The complete license agreement can be obtained at:
+# http://arrayfire.com/licenses/BSD-3-Clause
+########################################################
+from .library import *
+from .array import *
+import numbers
+
+class features(object):
+
+    def __init__(self, num=None):
+        self.feat = c_longlong(0)
+        if num is not None:
+            assert(isinstance(num, numbers.Number))
+            safe_call(clib.af_create_features(pointer(self.feat), c_longlong(num)))
+
+    def num_features():
+        num = c_longlong(0)
+        safe_call(clib.af_get_features_num(pointer(num), self.feat))
+        return num
+
+    def get_xpos():
+        out = array()
+        safe_call(clib.af_get_features_xpos(pointer(out.arr), self.feat))
+        return out
+
+    def get_ypos():
+        out = array()
+        safe_call(clib.af_get_features_ypos(pointer(out.arr), self.feat))
+        return out
+
+    def get_score():
+        out = array()
+        safe_call(clib.af_get_features_score(pointer(out.arr), self.feat))
+        return out
+
+    def get_orientation():
+        out = array()
+        safe_call(clib.af_get_features_orientation(pointer(out.arr), self.feat))
+        return out
+
+    def get_size():
+        out = array()
+        safe_call(clib.af_get_features_size(pointer(out.arr), self.feat))
+        return out