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  curves problem  (Read 737 times)
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Offline luciham

Senior Newbie




Java games rock!


« Posted 2003-11-10 01:37:53 »

QuadCurves2D can draw a curve that use three points ,but the control point doesn't track the curve ,how can i do? say have three points , how to draw a curve that track thest points?
Offline Jeff

JGO Coder




Got any cats?


« Reply #1 - Posted 2003-11-10 03:34:06 »

A typical spline does not go through its control points.

What you are looking for is "curve matching".  There are many many curves that can match a given set of points.  You will need to decide exactly what algortihym gives you the results you really desire.

Here's an article on "cardinal splines" which do go through the poinst in the set.  Its even in Java Smiley

http://www.mail-archive.com/java2d-interest@capra.eng.sun.com/msg02296.html

If thats not right or enough I'm sure you can find others with a google, like I just did.




Got a question about Java and game programming?  Just new to the Java Game Development Community?  Try my FAQ.  Its likely you'll learn something!

http://wiki.java.net/bin/view/Games/JeffFAQ
Offline luciham

Senior Newbie




Java games rock!


« Reply #2 - Posted 2003-11-10 06:32:20 »

Thanks for your help.your answer is nice,exactly what i've  always wanted.thank you.
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