From f1e6812f1826a67965f9f1204b600d7a6ca519ce Mon Sep 17 00:00:00 2001
From: Johannes Hofmann <Johannes.Hofmann@gmx.de>
Date: Mon, 8 Aug 2005 18:32:26 +0100
Subject: add variable view_angle

---
 src/Panorama.H   | 1 +
 src/Panorama.cxx | 3 ++-
 2 files changed, 3 insertions(+), 1 deletion(-)

(limited to 'src')

diff --git a/src/Panorama.H b/src/Panorama.H
index 4981bcb..12e62bf 100644
--- a/src/Panorama.H
+++ b/src/Panorama.H
@@ -31,6 +31,7 @@ class Panorama {
   double view_phi, view_lam, view_height;
   char *view_name;
   double height_dist_ratio;
+  double view_angle;
   Hills *mountains;
   Hills *close_mountains;
   Hills *visible_mountains;
diff --git a/src/Panorama.cxx b/src/Panorama.cxx
index aeba8ad..59f70eb 100644
--- a/src/Panorama.cxx
+++ b/src/Panorama.cxx
@@ -39,6 +39,7 @@ Panorama::Panorama() {
   height_dist_ratio = 0.07;
   pi_d = asin(1.0) * 2.0;
   deg2rad = pi_d / 180.0;
+  view_angle = pi_d / 2.0;
   parms.a_center = 0.0;
   parms.a_nick = 0.0;
   parms.a_tilt = 0.0;
@@ -402,7 +403,7 @@ Panorama::update_visible_mountains() {
       m->a_view += 2.0*pi_d;
     }
  
-    if (m->a_view < pi_d / 3.0 && m->a_view > - pi_d / 3.0) {
+    if (m->a_view < view_angle && m->a_view > - view_angle) {
       visible_mountains->add(m);
       m->flags |= HILL_VISIBLE;
     } else {
-- 
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