X-Git-Url: https://git.ucc.asn.au/?p=atyndall%2Fcits2231.git;a=blobdiff_plain;f=helper.c;h=404094752514a120a13e43ca4fc58f7dd8ccb814;hp=3b82580cc88dcc5101bd2c61d3b10e7fbf280102;hb=04b80f76711fefed66b740898072a6a1fd51171d;hpb=1d0e5964c9b4b65095c36871a58bc2bfcc4332ac

diff --git a/helper.c b/helper.c
index 3b82580..4040947 100644
--- a/helper.c
+++ b/helper.c
@@ -272,14 +272,21 @@ void drawLine() {
     
     // x arrowheads
     glVertex3i(  lineLength, 0.0, 0.0 );
-    glVertex3i(  lineLength - arrowLength, 0.0, arrowLength );
+    glVertex3i(  lineLength - arrowLength, 0.0,  1.0 );
 
-    glVertex3i( -lineLength, 0.0, 0.0 );
-    glVertex3i( -lineLength - arrowLength, 0.0, arrowLength );
+    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(  0.0, 0.0,  lineLength );
+    glVertex3i(  0.0, 0.0, -lineLength );
+
+    // z arrowheads
+    glVertex3i(  0.0, 0.0,  lineLength );
+    glVertex3i(  1.0, 0.0,  lineLength - arrowLength );
+
+    glVertex3i(  0.0, 0.0,  lineLength );
+    glVertex3i( -1.0, 0.0,  lineLength - arrowLength );
   glEnd();
 
   glDisable(GL_BLEND);