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<head>
<title>Test Fractal Generator</title>
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<body><center>
<a href="http://www.pangloss.com/seidel/ClrHlpr/index.html">ColorHelper</a> | 
<a href="http://www.pangloss.com/seidel/Shaker/">Insult Me</a> | 
<a href="http://www.pangloss.com/seidel/Poem/">Zenith Poetry</a> | 
<a href="http://www.pangloss.com/seidel/ClrHlpr/imagemap.html">ImageMapper</a> |
<a href="http://zenith.berkeley.edu/~seidel/Converter/converter.html">Converter</a> | 
<a href="http://www.he.net/~seidel/">Home</a>
<p>
<!--#exec cmd="./rand_pic.pl"-->
<h1>Test Fractal Generator</h1></center>
<a href="http://zenith.berkeley.edu/seidel/Frac/fracexp.html">How it works</a> 
<!-- &nbsp;&nbsp;|
&nbsp;&nbsp;&nbsp;<a href="http://vault-particle.berkeley.edu/FracMovie/frac1.gif">Fractal Movies (136k)</a>
are easy to make. -->

<p>
Explore for interesting regions in the plane by entering some values (or using
the defaults), and the computer will iterate them and generate a gif
image. The origin (0,0) is a high activity area (as long as a, b are raised 
above .35). <b>a</b> and <b>b</b> are the interesting 
numbers to play with. For example, try varying a and b by 10%, or 
compare the result of the defaults to these values (x, y) = (0.6, 0.58),
(x_inc, y_inc) = (0.0015, 0.0015), (a, b) = (0.4, 0.389). 
Or see the result <a href="http://www.pangloss.com/seidel/Frac/Gallery/testsm.gif">here</a>

<form method="POST" action="http://www.pangloss.com/seidel/Frac/fgen.cgi">
<p>
<input type="text" name="x_start" value="0.2">
Begining X-value (should be les than 2.0)
<p>
<input type="text" name="y_start" value="0.4">
Begining Y-value (should be les than 2.0)
<p>
<input type="text" name="x_increment" value="0.001">
Increment of X field<br>
(should be small enough so that 200*X_increment is less than 2.0)
<p>
<input type="text" name="y_increment" value="0.001">
Increment of Y field<br>
(should be small enough so that 200*Y_increment is less than 2.0)
<p>
<input type="text" name="a_value" value="0.4">
Value of <b>a</b>
<p>
<input type="text" name="b_value" value="0.32">
Value of <b>b</b>

<br>
<select name="size">
<option value="200x200">200x200
<option value="300x300">300x300
<option value="400x400">400x400
<option value="600x600">600x600
</select> Size of x, y field in pixels
<p>
<input type="submit" name="submit1" value="Crank it Up">
<input type="reset" value="Reset Values">
<p>Max number of iterations:
<input type="radio" name="iterations" value="75" checked>75
<input type="radio" name="iterations" value="150">150
<input type="radio" name="iterations" value="300">300
<p>
<input type="checkbox" name="collaborate" unchecked> Collaborate with 
<a href="http://204.96.11.210/jchuang/Music/Mozart/mozart.cgi">Mozart</a> (allows the option to submit your 
data to the Mozart Collaborator) 
</form>
<p>
<font size="+1">
<img src="http://www.primenet.com/~seidel/images/new.gif">Configure your own
<a href="http://www.pangloss.com/seidel/Frac/color_table.html">color choices.</a>
<p>
<a href="http://www.pangloss.com/seidel/Frac/mantest.html">Mandelbrot Fractals</a>
</font>
<p>
Visit the <a href="http://www.pangloss.com/seidel/Frac/gal.cgi">User Gallery</a> 
<p>
The fractal generator as a <font size="+1"><a href="http://www.pangloss.com/seidel/Frac/J_Frac.html">Java applet</a>.</font>
<br>
<hr>
<a href="http://www.pangloss.com/seidel/ClrHlpr/">HTML Color Helper</a> - a utility for finding the right colors 
for your homepage.
<p> 
Try your hand at <a href="http://www.pangloss.com/seidel/Poem/">Electronic Poetry</a><p>
<p>
<a href="http://www.he.net/~seidel/ChitChat/">Chat Server</a> - Exchange 
character strings with a friend via a web browser.
<p>
New! Play <a href="http://204.96.11.210/jchuang/Games/Ghost/home.cgi">Ghost</a> - a two player word game (see if 
anyone is waiting to play) <p>
Return to <a href="http://zenith.berkeley.edu/seidel/lab.html">lab page</a>
<hr>
Constructed and maintained by <a href="http://www.he.net/~seidel/">Chris Seidel</a>
<p>Comments or suggestions: 
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