3D Bezier Curve Applet
DIRECTIONS: In this applet, you create a Bezier
curve in space. To create the curve in space, there are two views
representing different projections of the curve onto a two dimensional
plane. There is a perspective projection and a parallel projection.
The button "PERSPECTIVE" allows you to toggle between the two
different views. The text on the button tells you which view you
are currently using. By clicking on the drawing panel, you place
points on the plane x=1 (the image plane). By pressing, "A" you
move the point in towards the camera (at the origin) directly
on the line connecting the origin to point on the image plane.
The point will not move, but the coordinates of the control point
will change. By pressing "Z", you move the point away from the
camera (at the origin) directly on the line connecting the origin
and the point on the image plane. Again the point viewed, does
not change but its coordinates do. In addition, you can rotate
the curve by using the arrow keys, and zoom in and out using page
up and page down.