From: Andy Spencer <andy753421@gmail.com>
Date: Mon, 24 Jan 2011 04:35:40 +0000 (+0000)
Subject: Fix off-by-one-half calculating ray distances
X-Git-Tag: v0.5~31
X-Git-Url: http://pileus.org/git/?p=aweather;a=commitdiff_plain;h=c76dc2ccdf833782380ee926da957c6a3e4c8c29

Fix off-by-one-half calculating ray distances
---

diff --git a/src/plugins/level2.c b/src/plugins/level2.c
index dec504a..906561a 100644
--- a/src/plugins/level2.c
+++ b/src/plugins/level2.c
@@ -166,8 +166,8 @@ void aweather_level2_draw(GritsObject *_self, GritsOpenGL *opengl)
 		double lx = sin(angle);
 		double ly = cos(angle);
 
-		double near_dist = ray->h.range_bin1;
-		double far_dist  = ray->h.nbins*ray->h.gate_size + ray->h.range_bin1;
+		double near_dist = ray->h.range_bin1 - ((double)ray->h.gate_size/2.);
+		double far_dist  = near_dist + (double)ray->h.nbins*ray->h.gate_size;
 
 		/* (find middle of bin) / scale for opengl */
 		// near left