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-
- Anfy IFS-fractals - Copyright (C) by Fabio Ciucci 1997-99
-
-
- This applet renders a type of fractals by recursivly calculating a
- fractal-tree that morphs using sin and cos tabs. The applet is fully
- configurable for fractal generation and colour palette.
-
- This applet is based on the original code by Martin Zettergren, and is used
- under a licence.
-
- *************************************************************************
-
- NECESSARY FILES.
-
- Apart from a background and/or a foreground images, the following 2
- ".class" files must be uploaded:
-
- AnFract.class
- Lware.class
-
- Plus, AnFract.jar for speedy loading on recent browsers.
-
- *********************************************************************
-
- EXAPLE.
-
- Insert the <applet> tag in your html document as follows to add this applet
- to your page (Comments after the ";" symbol are code descriptions and
- acceptable min/max values. They are not part of the applet language):
-
-
- <applet archive="AnFract.jar" code=AnFract.class width="200" height="200">
- <param name="credits" value="Applet by Fabio Ciucci (www.anfyteam.com)">
- <param name="regcode" value="NO"> ; Registration code (if you have it)
- <param name="reglink" value="NO"> ; Optional URL link when the applet
- is "clicked"
- <param name="regnewframe" value="YES"> ; Reglink opened in new frame?
- <param name="regframename" value="_blank">; Name of new frame for reglink
- <param name="statusmsg" value="IFS fractals applet"> ; Statusbar message
- <param name="dimensions" value="8"> ; Number of of iterations each branch
- <param name="branches" value="2"> ; Branches per iteration
- <param name="morph_speed" value="3"> ; Speed of morphs through shapes
- <param name="rot_speed" value="5"> ; Rotation speed within iterations
- <param name="rot_speed2" value="-5"> ; Rotation speed of whole fractal
- <param name="decline" value="0.75"> ; Length decrease each iteration
- <param name="length" value="26"> ; Length of the starting line
- <param name="pensize" value="1"> ; Drawing pen size (1..3)
- <param name="progress" value="YES"> ; Progressive pen increase (YES,NO)
- <param name="progrinverse" value="NO"> ; Inverse progressive pen (YES,NO)
- <param name="progrstep" value="2"> ; Pen progression stepping
- <param name="iterskip" value="YES"> ; Half iter skipping ("YES" or "NO")
- <param name="backimage" value="NO"> ; Background image (img name or "NO")
- <param name="backR" value="0"> ; Background colour (red component)
- <param name="backG" value="0"> ; Background colour (green component)
- <param name="backB" value="0"> ; Background colour (blue component)
- <param name="ifsR1" value="255"> ; Fractal colour 1 (red component)
- <param name="ifsG1" value="255"> ; Fractal colour 1 (green component)
- <param name="ifsB1" value="180"> ; Fractal colour 1 (blue component)
- <param name="ifsR2" value="10"> ; Fractal colour 2 (red component)
- <param name="ifsG2" value="50"> ; Fractal colour 2 (green component)
- <param name="ifsB2" value="255"> ; Fractal colour 2 (blue component)
- <param name="overtext" value="YES"> ; Fractal over text? ("YES", "NO")
- <param name="overimg" value="NO"> ; Optional image over applet
- <param name="overimgX" value="0"> ; Over image X offset
- <param name="overimgY" value="0"> ; Over image Y offset
- <param name="memdelay" value="1000"> ; Memory deallocation delay
- <param name="priority" value="3"> ; Task priority (1..10)
- <param name="MinSYNC" value="10"> ; Min. milliseconds/frame for sync
- Sorry, your browser doesn't support Java. ; Message for no java browsers.
- </applet> ; End of applet tag
-
- ***********************************************************************
-
- INSTRUCTIONS.
-
- The following instrcutions describe how to change parameters:
-
- Note: attempting to alter the "credits" parameter will disable the applet.
-
- To activate the "reg" parameters read the shareware registration notes.
- In the "regcode" parameter, place the registration code you purchased from
- the author. If the code is correct and the applet is run from the
- registered domain name, you can use "link" parameters to link to a URL
- when the applet is mouse-clicked.
-
- If you set "regnewframe" to "YES", you can specify a specific frame location
- for the reglink:
-
- "_blank" : To load the link in a new blank unnamed browser window.
- "_self" : To load the link into the same window the applet occupies.
- "_parent" : To load the link into the immediate FRAMESET parent.
- "_top" : To load the link into the top body of the window.
-
- You can also set a custom frame name, such as "myframe1".
-
- With the "overimg" parameter you can specify the name of an image that will
- be painted over the applet. The best options are transparent GIF images.
- NOTE: Animated GIF images are supported, but will be animated only on
- latest browsers (Netscape 4 and Explorer 4 or newer).
-
- With "overimgX" and "overimgY" you can center the image over the applet area.
-
- The size of the applet is determined by width and height tags. Changing the
- width and height of the applet will make the visible area of the fractal
- larger. The fractal is always automatically placed in the middleof the
- applet's visible area.
-
- The "dimensions" parameter controls how many iterations are performed to
- generate the fractal.
-
- The "branches" paramer controls how many 'branches' are made from the starting
- point. It is multiplied by 2 for each iteration.
-
- NOTE: The formula used to calculate the fractal tree is based on the
- concept of: 2^dimensions * 2 * branches.
- Therefore, the number of dimensions and branches of complex
- fractals may affect memory usage and computer speed.
- Approximately 8 dimensions (iterations) and about 1-5 branches give the
- optimum results.
-
- The "morph_speed" param controls the speed the applet tree morphs through
- different shapes.
-
- The "rot_speed" param controls the speed of the rotation within each branch
- of the fractal tree.
-
- The "rot_speed2" param controls the speed of the rotation within the whole
- fractal tree.
-
- The "length" param control the length of the starting line of the fractal.
-
- The "decline" param controls the decline of the length of lines drawn for
- each iteration. This parameter can be an increase as well, if you make the
- value more than 1. For example 0.75 gives a 25% decrease of the length for
- each iteration. 1.25 gives a 25% increase of the length for each iteration.
-
- You can choose the pen size up to size 3 with the "pensize" parameter. Or,
- set the "progress" parameter to "YES" to enable the progressive pen size
- increase, controlled with the "progrstep" parameter. You can also invert the
- progression setting "progrinverse" parameter to "YES".
-
- To increase speed and have a different effect, set the "iterskip" parameter
- to "YES".
-
- You can change the colour for best results on your web page. The RGB
- values are same as in HTML tags, but in decimal values. Use backR,backG,backB
- to change background colour.
-
- If you want to display an image in the background, place it's name in the
- place of "NO" at backimage parameter (for example "back.jpg").
- The only requirement is that the background image must be same size as the
- applet to completely cover it.
-
- You can choose the first and last color of a gradient that will be spread
- over all the fractals: ifsR1,ifsG1,ifsB1 for first colour, ifsR2,ifsG2,ifsB2
- for last colour of gradient.
-
- Examples: to make ALL the fractals white, place 255 as value for all the
- ifsR1,ifsG1,ifsB1 and ifsR2,ifsG2,ifsB2.
-
- To make fractals coloured from black to white (all the intermediate grays),
- place a value of 255 for ifsR1,ifsG1,ifsB1 and a value of 0 for second
- color: ifsR2,ifsG2,ifsB2.
-
- You can also make rainbows (from red to blue, etc.).
-
- Finally, "overtext" determines if fractals can overwrite scrolltext.
-
-
-