Math 155B - Introduction to
Computer Graphics - Winter 2004
Project #2 - Catmull-Rom and Overhauser interpolating splines
Overview: For this assignment you will write a program that accepts points via the mouse, and draws a spline curve which interpolates them. Your program will generate two kinds of curves: Catmull-Rom curves and Overhauser curves.
Due date: Tuesday, January 27, midnight.
Your program should support the following:
I have written a skeletal version of the program. The source code is
available from the textbook's web page, or directly from
http://math.ucsd.edu/~sbuss/MathCG/OpenGLsoft/ConnectDots/ConnectDots.html. This program
supports catching mouse clicks, the f and l
commands, and clamping to at most 64 points. It draws only straight-line
segments, not curves: your job is to add to the program the ability to
The sample program has been written to attempt to draw big, black points and thick, colored lines and curves. Whether this works on any particular machine is implementation dependent (a few years ago, I tried this program on four different machines, with as many different results.)
A sample PC executable is available as CatmullRomDraw.exe.
Grading: Grading is individual as usual. Please do not modify your files after the due date. You should be prepared to explain how your program works, and to show examples of the relative advantages and disadvantages of the Catmull-Rom splines and the Overhauser splines.