From d417ed2632eb97f133347db2201da447632a3dc9 Mon Sep 17 00:00:00 2001
From: Johannes Hofmann <Johannes.Hofmann@gmx.de>
Date: Sat, 24 May 2008 00:13:08 +0200
Subject: comments

---
 src/lsq_rectilinear.mac | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

(limited to 'src/lsq_rectilinear.mac')

diff --git a/src/lsq_rectilinear.mac b/src/lsq_rectilinear.mac
index 4ed1e09..8e0c0f3 100644
--- a/src/lsq_rectilinear.mac
+++ b/src/lsq_rectilinear.mac
@@ -2,7 +2,7 @@
  * rectilinear (pinhole) projection model with distortion correction
  */
 
-/* switch to cartesian coordinates for nick rotation */
+/* switch to cartesian coordinates */
 c_x : cos(m_nick) * cos(m_view - c_view)$
 c_y : cos(m_nick) * sin(m_view - c_view)$
 c_z : sin(m_nick)$
@@ -12,8 +12,11 @@ c_x_rot : cos(c_nick) * c_x$ + sin(c_nick) * c_z$
 c_y_rot : c_y$
 c_z_rot : -sin(c_nick) * c_x + cos(c_nick) * c_z$
 
+/* pinhole projection */
 x : c_y_rot / c_x_rot$
 y : - c_z_rot / c_x_rot$ 
+
+/* rotation around view axis */
 x_rot : y * sin(c_tilt) + x * cos(c_tilt)+x0$
 y_rot : y * cos(c_tilt) - x * sin(c_tilt)$
 
-- 
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