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[atyndall/cits2231.git] / helper.c

diff --git a/helper.c b/helper.c
index b1b0d96..5903b84 100644 (file)
--- 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 );
 
   glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
   glColor3f( 0.0, 0.0, 0.0 );
 

+  float arrowLength = 0.5;
+

   glBegin(GL_LINES);
     // x arrow
     glVertex3i(  lineLength, 0.0, 0.0 );
     glVertex3i( -lineLength, 0.0, 0.0 );
     
     // x arrowheads
   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 );
 
     // z arrow
     glVertex3i( 0.0, 0.0,  lineLength );