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Introduction
This sample
teaches you
how to
create an
OpenGL
based
Spline
Drawing
application
using the
MFC
library.
It shows how
to setup 4
Control
Points:
-
Start
Point
-
End
Point
-
Tangent
Start
Point
-
Tangent
End
Point
User
Interactions
-
Right
click to
load the
on
screen
context
menu.
-
Left
click
and drag
to move
the
selected
control
point
around
and see
its
effect
on the
spline.
-
From the
Spline
menu,
you can
select
the Type
of
Spline:
Hermite,
Cardinal
or
Bezier.
-
In the
same
menu you
can
change
the
Tension
of the
control
points
effect
on the
spline.
-
You can
also
select
different
control
points
between:
Start/End
points
and
Start/End
Tangent
points.
Rquirements
The
application
requires
opengl32.dll
for windows
which can be
obtained
from
www.opengl.org.
Notes &
Credits:
The original
source
code
for the
Spline
Drawing
Application
is GLUT
based and I
found it
posted on
www.planet-source-code.com,
OpenGL codes
link. Please
check the
sample.