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What is it?
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This is a simple program to create to create julia set images and
mandelbrot set images.
The output file is written in GIF format.

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How to use it:
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Fract's command line syntax is:
         
fract -mjsce -x xres -y xres -c creal -i cimag 
      [-x1] [-x2] [-y1] [-y2] [-o] [-p] 
params in [] are optional

where:
-m : to create a mandelbrot set..this is the default setting;
-j : to create julia set of z^2+c;
-s : to create julia set of c*sinz;
-c : to create julia set of c*cosz;
-e : to create julia set of c*expz;
-x : screen width;  
-y : screen height;
-r : c real part for julia sets or real perturbation for mandelbrot set;
-i : c imaginary part for julia sets or imaginary perturbation for
     mandelbot set;
-x1 -x2:use these flags to set real part range..default is x1=-2 x2=2;
-y1 -y2:use these flags to set imaginary part range..default is y1=-2
    y2=2; 
-o : output file name..default is 'out.gif'
-p : the Fractint style palette file...dafault is vga.map,the standard
     vga palette;

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Compiling:
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To compile simply type:

cc -O3 *.c -o fract -lm

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Author
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Massimo Casal
Viale Volontari della Liberta' 36/2
33100 Udine
Italy

e-mail: casal@udmi5400.cineca.it 

