From 9b75194d138b21e7f5f3ced6b1e7c330d618e051 Mon Sep 17 00:00:00 2001
From: Anthony LaTorre <telatorre@gmail.com>
Date: Sun, 15 May 2011 21:03:47 -0400
Subject: added a detector folder to put detector geometries

---
 transform.py | 10 ++++++++++
 1 file changed, 10 insertions(+)
 create mode 100644 transform.py

(limited to 'transform.py')

diff --git a/transform.py b/transform.py
new file mode 100644
index 0000000..4e5eb9c
--- /dev/null
+++ b/transform.py
@@ -0,0 +1,10 @@
+import numpy as np
+
+def rotate(x, phi, n):
+    x = np.asarray(x)
+    n = np.asarray(n)
+
+    r = np.cos(phi)*np.identity(3) + (1-np.cos(phi))*np.outer(n,n) + \
+        np.sin(phi)*np.array([[0,n[2],-n[1]],[-n[2],0,n[0]],[n[1],-n[0],0]])
+
+    return np.inner(x,r)
-- 
cgit