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<!DOCTYPE html>
<html>
<head>
<title>Cutfold - virtual snowflake creator</title>
</head>
<body>
<!-- begin inner content -->
<h1>Virtual Paper Cut & Fold </h1>
<p>
Make snowflake patterns, learn how to create a five-pointed star with a
single cut (like Betsy Ross) and more!
</p>
<p>
This app was originally posted in 2002 as flash movie, and then became a java applet, where it
stayed for ten years. You can still <a href="applet">try the applet</a>, but we found it was
difficult to ensure that it would work for everyone given the state of Java in the browser and
especially applets in the browser, as browsers continually evolve. So now there's an <a
href="js/">HTML5/Canvas version</a>. It doesn't have the ability to save yet, but I'll probably add
that soon. Hmm ten years later I have not added that.
</p>
<p>
Here are the basic rules:
</p>
<ul>
<li>
You can <b>fold</b> the paper by (clicking fold and) dragging a line segment
across it. Then the cursor will change to an up-down double arrow.
Click on one side or the other of your fold to indicate which side should
fold down.
</li><li>
You can <b>cut</b> the paper by (clicking cut and) drawing a series of
connected lines by repeatedly clicking and moving the mouse; the cutting is
finalized with a <b>double-click</b> (or by crossing your own cutting
line).
</li><li>
You can <b>discard</b> pieces of paper. Be careful where you click: There
is only one level of undo.
</li><li>
You can <b>unfold</b> - this unfolds the most recent fold.
</li>
<li>
Finally you can <b>save</b> (in the applet version only) by entering a
name in the type-in box and pressing the "save/print" button. This
creates several saved versions of your snowflake, including a PDF for
printability.
</li>
</ul>
<!-- some old links
<h2>Java applet links</h2>
<p>
Instructions for our online paper folding activity are below; or you can go
straight to the <a target="_blank" href="applet/gallery/">gallery</a> to see what others
have been up to and start folding paper online yourself!
Or - jump right in and make a flake:
<a target="_blank" href="applet/prefolded.html">from prefolded paper (easiest)</a>;
<a target="_blank" href="applet/guidelines.html">with folding guidelines</a>;
<a target="_blank" href="applet/">from scratch (for experts)</a>.
</p>
<p>
It's not origami, is it, but has many similarities. We plan to introduce
some additional folding techniques that will enable us to do more
origami-ish stuff. Take a look at these origami simulations:
</p>
<ul>
<li><a href="http://www.sccs.chukyo-u.ac.jp/~miyazaki/origami/index.html">Miyazaki</a> Origami simulator</a></li>
<li><a href="http://www.jtnimoy.com/itp/origami/index.html">JT Nimoy</a> shows some ideas for an origami user interface</li>
</ul>
</p>
-->
<!--
Here are the <a href="flaindex.html">original basic rules</a> (for the
flash version).
<ul>
<li>
You can fold the paper by (clicking fold and) dragging a line segment
across it; the line must begin and end outside the bounds of the paper.
Then the cursor will change to a down arrow. Click on one side or the
other of your fold to indicate which side should fold down.
</li><li>
You can cut the paper by (clicking cut and) drawing a series of connected lines; the cutting happens when you intersect the first line.
</li><li>
You can recenter the paper if it goes off the screen or gets too small/big.
</li><li>
You can discard pieces of paper. be careful - you might discard your work and there is no undo! (late correction - the Java applet version has one level of undo).
</li><li>
You can unfold - this unfolds in reverse order of folding. However - once
you unfold you can no longer fold again (although the program allows you,
this will mangle things strangely).
</li>
</ul>
<p>
<p>
When the program has a problem in its topology or geometry, it usually manifests itself as one or more of the following:
<p>
<ol>
<li> a piece of paper that won't unfold</li>
<li> a piece of paper that becomes detached from another piece to which it should be attached (by a fold or crease) when unfolded.</li>
<li> An error message of some sort in a pop up text "trace" window, possibly accompanied by little red and/or blue diamonds drawn on top of the paper.</li>
</ol>
<p>
If any of these things occurs, please let me know at sokolov at ifactory dot com.
-->
<!--
<p>
In the meantime, try making snowflakes or other interesting shapes (there are zillions of sites with instructions; here are a few):
<p>
<a href="http://www.myweb3000.com/snowflakes.html">http://www.myweb3000.com/snowflakes.html</a><br>
<a href="http://www.papersnowflakes.com">http://www.papersnowflakes.com/preview1.htm</a><br>
<a href="http://www.geocities.com/starsandflakes/">http://www.geocities.com/starsandflakes/</a><br>
<a href="http://ms-t-inc.com/pdf-file/snowflak.pdf">http://ms-t-inc.com/pdf-file/snowflak.pdf</a><br>
<a href="http://mama.essortment.com/papersnowflake_rfiq.htm">http://mama.essortment.com/papersnowflake_rfiq.htm</a><br>
<a href="http://flagday.com/history/star_in_one_cut/flagstar.shtml">http://flagday.com/history/star_in_one_cut/flagstar.shtml</a><br>
<p>
A shockwave snowflake "designer"!:
<a href="http://www.explorescience.com/activities/Activity_page.cfm?ActivityID=13">http://www.explorescience.com/activities/Activity_page.cfm?ActivityID=13</a>
-->
</body>
</html>