Projects (current)

1 - Design a 2D Fractal & Exam Question (due at the 2001-09-20 @ 6pm mtg)

• Goal: Design a fractal different from any we've seen so far (the more different the better!)
  • Use the new point datatype (described in graphics-lib.scm)
  • Design a creative exam question that uses your fractal
• Resources:
  1. Dr. Scheme or MacGambit, available at the bottom of the CS3 www page (If Dr. Scheme, you'll also need the graphics-teachpack)
  2. first-six-fractals.scm (The first six fractals demonstrated in class you all know, coded in old-style without the points data type)
  3. graphics-lib.scm (A set of graphics library routines using points that make coding fractals MUCH easier -- use these!)
  4. fractal-examples.scm (A set of examples coded using the points data type -- look how great and clean they are -- especially flower)
  5. Fall 2000 Fractal question (word / PDF)
  6. Spring 2001 Fractal question (word / PDF)
• Bring with you to the meeting
  • The code for your fractal and exam question on a floppy (labeled with your name)
  • A printout of your fractal
  • A printout of your exam question

2 - Animate your 2D Fractal (due at the 2001-09-27 @ 5pm mtg)

• Goal: To think of a creative way to animate your fractal and one of the old fractals.
• Resources
  • You need to download graphics-lib.scm again. We've added three critical functions:
    • lin-interpP, which linearly interpolates a point
    • lin-interp, which linearly interpolates a single variable
    • grow-fractal, which does the work of animating the fractal
  • I've included three example files. All you have to do to run the example is load graphics-lib.scm and then load one of these three files:
    • ccurve-dragon-anim.scm
    • sierpinski-square-alt-anim.scm
    • sierpinski-square-anim.scm
  • If you want to do more with stk-specific graphics, you can do something like:

(.c 'create 'line 10 20 100 200 
            '-tag 'cs3
            '-width 50
            '-fill "#ff0000"
            '-capstyle 'round)

• To create movies like those shown here, simply log into an instructional machine and type:
  1. unix% ~cs61a/bin/stk
  2. stk> (load "graphics-lib.scm") ;; make sure it's the new version (with stk animation support)
  3. stk> (load "ccurve-dragon-anim.scm") ;; the c-curve will now start animating. When you're ready to animate your own fractal, model it after this file (or any of the others above) and load it the same way.
  4. Then, evaluate the line labeled by "write file" at the end of ccurve-dragon-anim.scm, and it will dump the screen to gifs.
     • Then, if the animation looks great, has been approved by Dan, and you don't have Quicktime Pro installed, package up all the gif files into a single zip file and email that to Dan who will convert your frames into a movie using Quicktime.
     • Or, you can use one of the following utilities to make an animated GIF:
       • (for PCs) Unfreeze
       • (for Unix) GIFMerge
       • (for Unix) GIFsicle

Sierpinski Square	Sierpinski Square Alternate	Dragon Curve	C-Curve

• Bring with you to the meeting (mtg postponed until next week...sorry!)
  1. Floppy disk with your code on it
  2. A printout of your fractal animated half-way through an early recursion level (e.g., 1.5)

3 - Rotater & Home Page (due at the 2001-10-04 @ 6pm mtg)

• Goal: To start playing with Rotater and create your own homepage
  • Rotater is a program which will allow you to view and rotate 3D models.
    • Install Rotater on your Mac / Windows 95/98 machine
    • Download some (all?) of the rotater files
    • Hand-create a fun rotater file to make sure you understand the format, no need to turn it in
    • Think of an interesting fractal which you'll implement next week
  • Your homepage will be the global repository for all your work this semester.
    • At the end of the semester, we'll copy your entire WWW directory to archive it.
    • Put everything you do for all projects on this page
• Resources:
  • Dan's Rotater page has all the links you'll need
• Bring with you to the 6pm meeting
  1. Your work from last week
  2. The URL from your homepage so we can link to it.

4 - Procedurally generate fractal Rotater file from Scheme (due at the 2001-10-11 @ 5pm mtg)

• Goal: To use Scheme to procedurally generate a 3-D fractal to be viewed in Rotater
  • You'll use similar Scheme graphics routines to write a series of 3D fractal Rotater files based on the same 3D fractal at different levels of recursion.
  • Name them YourNameFractalnameNum.rot, e.g.,
    • DanGarciaBigTree0.rot
    • DanGarciaBigTree1.rot
    • DanGarciaBigTree2.rot
• Resources:
  • graphics3D-lib.scm
  • rotater-examples.scm

circlies.rot

cubies.rot

LayeredCCurve.rot

LayeredDragon.rot

• Bring with you to the 5pm meeting
  1. Put a 100x100 image of your 3D object from a Rotater screenshot linked to your Rotater file, just shown above

5 - Install SLIDE and play with it (due at the 2001-10-18 @ 6pm mtg)

• Goal: To install Slide and play with it
  • We'll be using it for the next several weeks to explore interactive graphic routines.
  • Play with it and create a small file with geometry that you can control with a slider
• Resources:
  • SLIDE www page
• Bring with you to the 6pm meeting
  1. Questions about Slide

6 - Create your first dynamic SLIDE object (due at the 2001-10-25 @ 5pm mtg)

• Goal: To understand Slide some more
  • Create a new dynamic Slide file controllable via Tcl/Tk sliders and put it on your WWW page
• Resources:
  • SLIDE www page and tutorial
  • The three example SLIDE files
    • barbell.slf
    • fun.slf
    • triangle.slf
• Bring with you to the 5pm meeting
  1. Your slide file on a floppy

7 - Create your first static SLIDE object (due at the 2001-11-08 @ 5pm mtg)

• Goal: To create your first static slide file
  • Create a new static Slide file controllable via Tcl/Tk sliders and put it on your WWW page
• Resources:
  • SLIDE www page
• Bring with you to the 6pm meeting
  1. Your slide file on a floppy
  2. Note, this is a two-week project!

8 - Create your second 3D static SLIDE object (due at the 2001-11-15 @ 6pm mtg)

• Goal: To create your second 3D slide file
  • Create a second 3D Slide file based on suggestions and edits of your first
• Resources:
  • SLIDE www page
• Bring with you to the 5pm meeting
  1. Your slide file on a floppy
  2. Note, this is a two-week project!

9 - Generate 3D sculptures from the best SLIDE files! (due at the 2001-11-29 @ 6pm mtg)

• Goal: To render the best SLIDE files into 3D sculptures
  • The best SLIDE files will be tweaked and chosen to be rendered to a 3D sculpture!
• Resources:
  • SLIDE www page
  • CYBERBUILD www page
• Bring with you to the 5pm meeting
  1. Your slide file on a floppy