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-
- Anfy IFS-fractals 1.1 - Copyright (C) by Fabio Ciucci 1997/98
-
-
- This applet renders fractals by recursivly calculating a fractal-tree that
- morphs using sin and cos tabs. The applet is fully configurable regarding
- fractal generation and color palette.
- This applet is based on original code by Martin Zettergren that is used
- under license.
- Remember that are needed both AnFract.class and Lware.class.
- You must upload these 2 .class files and insert the <applet> tag on your
- html document to add this applet to your page.
-
- Here an example of what you have to write in the html (the things anfter
- the ; are comments with min-max values acceptet):
-
-
- <applet code=AnFract.class width=200 height=200> ; Name, Width, Height
- <param name=credits value="Applet by Fabio Ciucci (www.anfiteatro.it/java.html)">
- <param name=regcode value="NO"> ; Register code (if you have it)
- <param name=reglink value="NO"> ; URL where go optionally when 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 (it's name or "NO")
- <param name=backR value="0"> ; Background color (red component)
- <param name=backG value="0"> ; Background color (green component)
- <param name=backB value="0"> ; Background color (blue component)
- <param name=ifsR1 value="255"> ; Fractal color 1 (red component)
- <param name=ifsG1 value="255"> ; Fractal color 1 (green component)
- <param name=ifsB1 value="180"> ; Fractal color 1 (blue component)
- <param name=ifsR2 value="10"> ; Fractal color 2 (red component)
- <param name=ifsG2 value="50"> ; Fractal color 2 (green component)
- <param name=ifsB2 value="255"> ; Fractal color 2 (blue component)
- <param name=overtext value="YES"> ; Fractal over text? ("YES", "NO")
- <param name=textscroll value="NO"> ; File for scrolltext or "NO"
- <param name=textoffset value="140"> ; Txtscroll y offset
- <param name=textspeed value="1"> ; Txtscroll speed
- <param name=textfont value="Arial"> ; Txtscroll font name
- <param name=textbold value="NO"> ; Txtscroll bold ("YES" or "NO")
- <param name=textsize value="24"> ; Txtscroll font size
- <param name=textshadow value="YES"> ; Txtscroll shadow ("YES" or "NO")
- <param name=TextColR value="200"> ; Txtscroll color (red component)
- <param name=TextColG value="255"> ; Txtscroll color (green component)
- <param name=TextColB value="190"> ; Txtscroll color (blue component)
- <param name=TextSColR value="20"> ; Txtscroll shadow col. (red c.)
- <param name=TextSColG value="20"> ; Txtscroll shadow col. (green c.)
- <param name=TextSColB value="50"> ; Txtscroll shadow col. (blue c.)
- <param name=TextJumpAmp value="0"> ; Txtscroll jump aplitude
- <param name=TextJumpSpd value="0"> ; Txtscroll jump speed
- <param name=TextSineAmp value="0"> ; Txtscroll sineshape amplitude
- <param name=TextSineSpd value="0"> ; Txtscroll sineshape movement
- <param name=TextSineAngle value="0"> ; Txtscroll sineangle / pixel
- <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 suppor Java. ; Message for no java browsers.
- </applet> ; End of applet tag
-
- ---------
-
-
- Here are detailed instructions about how to change parameters:
-
- The credits parameter can't be changed otherwise the applet will not work.
-
- To activate the reg parameters read the shareware registration notes.
- In the "regcode" parameter you have to place the registration code you
- purchase from the author. If it is correct and the applet is run from the
- registered domain name, you can use "reglink" parameter, where you can specify
- an URL where bring user when the applet is clicked.
- If you set to "YES" regnewframe, you can specify a frame where load 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.
-
- Otherwise the frame name, for example "myframe1".
-
- 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 middle
- of the applet's visible area.
-
- The "dimensions" param controls how many iterations are performed to generate
- the fractal.
-
- The "branches" param controls how many 'branches' are made from the starting
- point. It is multiplied by 2 for each iteration.
-
- NOTE: The formula used to calc the fractal tree is based around the
- concept of: 2^dimensions * 2 * branches.
- So, think about that when you specify the number of dimensions and branches
- that too complex fractals takes up alot of memory and a lot of the
- computers speed.
- Have about 8 dimensions (iterations) and about 1-5 branches for the best
- and fastest 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 could be an increase too, 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 with "pensize" parameter, from a size of thru 3.
-
- Otherwise, set the "progress" parameter to "YES" to enable the progressive
- pen size increasing, controlled with the "progrstep" parameter.
-
- Optionally you can 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 colours for best results over your web page, the RGB
- values are same as HTML tags, but in decimal values.
-
- Use backR,backG,backB to change background color.
-
- 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.
-
- About fractal color, you can choose the first and last color of a gradient
- that will be spread over all the fractals: ifsR1,ifsG1,ifsB1 for first
- color, ifsR2,ifsG2,ifsB2 for last color 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.
- Offcourse you can make rainbows (from red to blue, etc.).
-
- Finally, "overtext" determine if fractals can overwrite scrolltext.
-
-
-