Computer Science 112
The Art & Science of Computer Graphics

Spring 2013, The College of Saint Rose

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Agenda

• Announcements
• Studio/Lab 8: Programmed Replication due tonight
• Final Project discussion
• Bezier curves
  • See also Bailey handout (available in CS 112 shared folder)
• In-class exercise

  Using the "scaffolding" construction, show the points on the Bezier curve defined by the points A, B, C, and D as shown below, at times t=0.25, t=0.5, and t=0.75.

  t=0.25	t=0.5	t=0.75

• blend and morph

Lecture Assignment 21

Due at the start of class, Tuesday, April 16.

Complete the Bezier curve lecture assignment handout.

Please submit as a hard copy by the start of class. We will discuss these questions at the start of class, so no late submissions are accepted.

Examples

• Mead Example: SimpleBezier
• Mead Example: Bell
• Mead Example: MorphReplication

Links

• Wikipedia entry for Bezier curves
• A Java applet at Brown that can be useful for defining Bezier curves:

  http://www.cs.brown.edu/exploratories/freeSoftware/repository/edu/brown/cs/exploratories/applets/bezierSplines/bezier_splines_java_browser.html

• Some Java applets at Imperial College in London that help construct Bezier curves, including ones made of multiple segments:

  http://www.doc.ic.ac.uk/ dfg/AndysSplineTutorial/Beziers.html