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[atyndall/cits2231.git]
/
helper.c
diff --git
a/helper.c
b/helper.c
index
182409a
..
4040947
100644
(file)
--- a/
helper.c
+++ b/
helper.c
@@
-263,7
+263,7
@@
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
;
+ float arrowLength =
1.0
;
glBegin(GL_LINES);
// x arrow
glBegin(GL_LINES);
// x arrow
@@
-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 );
- 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);
glEnd();
glDisable(GL_BLEND);
UCC
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