From 3328a7c9a09d20559b268dfa48eeb883f372a1f7 Mon Sep 17 00:00:00 2001
From: matlabbe <matlabbe@f169173b-cf89-36c8-b27e-44dbe73f0c83>
Date: Mon, 21 Jul 2014 18:46:48 +0000
Subject: [PATCH] CameraRGBD example, show usage when no argument is set

git-svn-id: http://rtabmap.googlecode.com/svn/trunk/rtabmap@1585 f169173b-cf89-36c8-b27e-44dbe73f0c83
---
 tools/CameraRGBD/main.cpp | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/tools/CameraRGBD/main.cpp b/tools/CameraRGBD/main.cpp
index 930b2e4c..d2f5764f 100644
--- a/tools/CameraRGBD/main.cpp
+++ b/tools/CameraRGBD/main.cpp
@@ -38,9 +38,13 @@ int main(int argc, char * argv[])
 	ULogger::setLevel(ULogger::kInfo);
 
 	int driver = 0;
-	if(argc > 1)
+	if(argc < 2)
 	{
-		driver = atoi(argv[1]);
+		showUsage();
+	}
+	else
+	{
+		driver = atoi(argv[argc-1]);
 		if(driver < 0 || driver > 4)
 		{
 			UERROR("driver should be between 0 and 4.");