From f990adcfab61c16a3992be4d00e21da5a2bfe251 Mon Sep 17 00:00:00 2001
From: Julian Lamb <thepurlieu@gmail.com>
Date: Tue, 8 Mar 2011 21:07:39 -0500
Subject: [PATCH] prevent empty layers from messing up the bounding box calcs
 (for zoom fit, etc) fixes bug 3201028

---
 src/gerbv.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/src/gerbv.c b/src/gerbv.c
index 905037c..8df979a 100644
--- a/src/gerbv.c
+++ b/src/gerbv.c
@@ -547,10 +547,15 @@ gerbv_render_get_boundingbox(gerbv_project_t *gerbvProject, gerbv_render_size_t
 			* Find the biggest image and use as a size reference
 			*/
 			/* cairo info already has offset calculated into min/max */
+			
 			minX = info->min_x;
 			minY = info->min_y;
 			maxX = info->max_x;
 			maxY = info->max_y;
+			
+			if (!isnormal(minX)||!isnormal(minY)||!isnormal(maxX)||!isnormal(maxY)){
+				continue;
+			}
 			/* transform the bounding box based on the user transform */
 	
 			cairo_matrix_t fullMatrix;
-- 
2.11.4.GIT