From: Ash Tyndall <git@atyndall.net>
Date: Fri, 21 Oct 2011 01:43:57 +0000 (+0800)
Subject: (no commit message)
X-Git-Url: https://git.ucc.asn.au/?a=commitdiff_plain;h=a73bfc78d5ebac0c1cb851ed8b619fbd13acea9c;p=atyndall%2Fcits2231.git

---

diff --git a/helper.c b/helper.c
index b1b0d96..b80a513 100644
--- a/helper.c
+++ b/helper.c
@@ -263,17 +263,16 @@ void drawLine() {
   glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
   glColor3f( 0.0, 0.0, 0.0 );
 
+  float arrowLength = 1.0;
+
   glBegin(GL_LINES);
     // x arrow
     glVertex3i(  lineLength, 0.0, 0.0 );
     glVertex3i( -lineLength, 0.0, 0.0 );
     
     // x arrowheads
-    glVertex3i( lineLength - 1, 0.0, 0.0 );
-    glVertex3i( -lineLength - 1, 0.0, 0.0 );
-    
-    glVertex3i( lineLength - 1, 0.0, 0.0 );
-    glVertex3i( -lineLength + 1, 0.0, 0.0 );
+    glVertex3i(  lineLength, 0.0, 0.0 );
+    glVertex3i(  lineLength -  arrowLength, 0.0,  arrowLength );
 
     // z arrow
     glVertex3i( 0.0, 0.0,  lineLength );