From: Ash Tyndall <git@atyndall.net>
Date: Fri, 21 Oct 2011 02:37:07 +0000 (+0800)
Subject: (no commit message)
X-Git-Url: https://git.ucc.asn.au/?a=commitdiff_plain;h=ec50cae176e4a0ec67a756f779adbdf700362924;p=atyndall%2Fcits2231.git

---

diff --git a/helper.c b/helper.c
index aebdaee..18ae61a 100644
--- a/helper.c
+++ b/helper.c
@@ -277,15 +277,16 @@ void drawLine() {
     glVertex3i(  lineLength, 0.0, 0.0 );
     glVertex3i(  lineLength - arrowLength, 0.0, -1.0 );
 
-    glVertex3i( -lineLength, 0.0, 0.0 );
-    glVertex3i( -lineLength + arrowLength, 0.0,  1.0 );
+    // z arrow
+    glVertex3i(  0.0, 0.0,  lineLength );
+    glVertex3i(  0.0, 0.0, -lineLength );
 
-    glVertex3i( -lineLength, 0.0, 0.0 );
-    glVertex3i( -lineLength + arrowLength, 0.0, -1.0 );
+    // z arrowheads
+    glVertex3i(  0.0, 0.0,  lineLength );
+    glVertex3i(  1.0, 0.0,  lineLength - arrowLength );
 
-    // z arrow
-    glVertex3i( 0.0, 0.0,  lineLength );
-    glVertex3i( 0.0, 0.0, -lineLength );
+    glVertex3i(  0.0, 0.0,  lineLength );
+    glVertex3i( -1.0, 0.0,  lineLength - arrowLength );
   glEnd();
 
   glDisable(GL_BLEND);