X-Git-Url: https://git.ucc.asn.au/?p=atyndall%2Fcits2231.git;a=blobdiff_plain;f=helper.c;h=404094752514a120a13e43ca4fc58f7dd8ccb814;hp=b98439e85b9051b752e6bad0ea45d723fe2eb635;hb=9679e75a0bac57d3a2dc8602963c2ac4b94905b3;hpb=bc40db0c36dac196dc3c7d1271d356fe315e0f56

diff --git a/helper.c b/helper.c
index b98439e..4040947 100644
--- a/helper.c
+++ b/helper.c
@@ -277,12 +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(  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);