From c52293a3634d447893c081cd1074a2cef293449d Mon Sep 17 00:00:00 2001
From: Thomas White <taw@bitwiz.org.uk>
Date: Sat, 19 Feb 2011 21:57:52 -0800
Subject: Fix get_q()

---
 src/detector.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

(limited to 'src')

diff --git a/src/detector.c b/src/detector.c
index 93ee323f..368e5797 100644
--- a/src/detector.c
+++ b/src/detector.c
@@ -78,8 +78,8 @@ struct rvec get_q(struct image *image, double fs, double ss,
 
 	/* Convert xs and ys, which are in fast scan/slow scan coordinates,
 	 * to x and y */
-	xs = fs*p->fsx + ss*p->ssx;
-	ys = fs*p->fsy + ss*p->ssy;
+	xs = (fs-p->min_x)*p->fsx + (ss-p->min_y)*p->ssx;
+	ys = (fs-p->min_x)*p->fsy + (ss-p->min_y)*p->ssy;
 
 	rx = (xs + p->cx) / p->res;
 	ry = (ys + p->cy) / p->res;
-- 
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