Anfy Wobbler - Copyright (C) by Fabio Ciucci 1998/99


This applet can wobble any GIF or JPG image of any size.

It is based on original code by Jetro Lauha, which is used under a licence.

Due to particular optimisations, the applet size must be a multiple of 8,
in both width and height.

Regarding image size, any size is allowed, but there are particular sizes:
32x32 , 64x64, 128x128 or 256x256 which are the best ones, because applet will
run a lot faster. We strongly suggest to load an image with one of the sizes
listed.

****************************************************************************

NECESSARY FILES.

The following 3 ".class" files must be uploaded: 

wobbler.class
Lware.class
anfy.class.

Plus, wobbler.jar for speedy loading on recent browsers.

***************************************************************************

EXAMPLE.

Insert the <applet> tag in your html document as follows to add this applet
to your page (Comments after the ";" symbol are code explanations and
acceptable min/max values. They are not part of the applet language):


<applet archive="wobbler.jar" code="wobbler.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="Rotator applet"> ; Statusbar message
<param name="image" value="dossi.jpg">         ; Image to load
<param name="res" value="1">                   ; resolution (1-8)
<param name="initialdistance" value="3.0">     ; Initial distance (0.01 .. 500)
<param name="zoomspeed" value="0.1">           ; Zoom speed (0.0 .. 50.0)
<param name="mindistance" value="5.0">         ; Min Distance (0.01 .. 500)
<param name="maxdistance" value="20.0">        ; Max Distance (0.01 .. 500)
<param name="radius" value="400.0">            ; Radius in pixels
<param name="wavestrength" value="8.0">        ; Wave Strength
<param name="spd1" value="40.0">               ; Speed 1
<param name="spd2" value="30.0">               ; Speed 2
<param name="spd3" value="50.0">               ; Speed 3
<param name="spd4" value="40.0">               ; Speed 4
<param name="xmove" value="200">               ; X speed (0 .. 1000)
<param name="ymove" value="200">               ; Y speed (0 .. 1000)
<param name="variationstart" value="0">        ; Starting sine variation
<param name="variationmove" value="10">        ; Variation speed (0 .. 1000)
<param name="precision" value="high">          ; Precision ("high" or "low")
<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 instructions describe how to change parameters:

Attempting to change the "credits" parameter will disable the applet.

To activate the reg parameters, please 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 GIF or JPEG image can be of any size, but we strongly suggest these:
32x32 , 64x64, 128x128 or 256x256, because applet will run a lot faster.

The size of the applet is determined by the width and height tags, and can be
different from the size of the image. Just remember to choose a multiple of 8 
for both width and height values, or applet will have problems and black borders.

The "res" parameter determines the resolution: with res=1 pixels are small,
but effect is slow. With res=8 pixels are too big but the effect is faster.
Optimum choices are 1-3.

To configure the wobbler in order to display different effects, you have
to change the many parameters it has, but unfortunately there is not a way
to explain how all behave, because of the non-linear math behind this applet
and the unpredictable results.

The best option is to experiment yourself, starting from some of the examples
provided:

*********************************************************************************

SAMPLE VALUES.

The default wobbler:

 initialdistance = 3.0
 zoomspeed =       0.1
 mindistance =     5.0
 maxdistance =    20.0
 radius =        400.0
 wavestrength =    8.0
 spd1 =           40.0
 spd2 =           30.0
 spd3 =           50.0
 spd4 =           40.0
 xmove =         200
 ymove =         200
 variationstart =  0
 variationmove =  10


Concentric waves (water like):

 initialdistance = 5.0
 zoomspeed =       0.0
 mindistance =     5.0
 maxdistance =     5.0
 radius =        400.0
 wavestrength =  102.0
 spd1 =          120.0
 spd2 =          140.0
 spd3 =            0.4
 spd4 =           10.0
 xmove =           0
 ymove =           0
 variationstart =  0
 variationmove = 200


Something like a star:

 initialdistance = 80.0
 zoomspeed =        0.0
 mindistance =     80.0
 maxdistance =     80.0
 radius =          40.0
 wavestrength =     0.0
 spd1 =            10.0
 spd2 =        100000.0
 spd3 =            10.0
 spd4 =            10.0
 xmove =          200
 ymove =          200
 variationstart =   0
 variationmove =  100


Mapping over a sphere:

 initialdistance = 12.0
 zoomspeed =        0.0
 mindistance =     12.0
 maxdistance =     12.0
 radius =         220.0
 wavestrength =     0.0
 spd1 =          1000.0
 spd2 =          1000.0
 spd3 =            10.0
 spd4 =            10.0
 xmove =          200
 ymove =          200
 variationstart =   0
 variationmove =   30


A breathing surface:

 initialdistance = 10.0
 zoomspeed =        0.3
 mindistance =      2.0
 maxdistance =     20.0
 radius =         380.0
 wavestrength =     0.0
 spd1 =            10.0
 spd2 =            10.0
 spd3 =            10.0
 spd4 =            10.0
 xmove =            0
 ymove =          200
 variationstart =   0
 variationmove =   10


Metallic reflection:

 initialdistance = 6.0
 zoomspeed =       0.4
 mindistance =     2.0
 maxdistance =    22.0
 radius =       4000.0
 wavestrength =   16.0
 spd1 =            5.8
 spd2 =           20.0
 spd3 =            1.4
 spd4 =          100.0
 xmove =         140
 ymove =         140
 variationstart =  0
 variationmove =  10