ifsfract.html
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<td><img src="images/ifsfract2.gif" width="153" height="168"></td>
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<p><font size="3">First, set the applet size at
"<b>Width</b>" and "<b>Height</b>"
boxes, and select either background image or colour
(shown at left-below image).</font></p>
<p><font size="3">If you need text scrolling, then,
check "Enable textscroll" box. </font></p>
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<td colspan="2"><font size="3">You can choose if the
fractal tree is rendered over the text by checking
"Over text" box.</font></td>
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<td width="50%"><img src="images/ifsfract3.gif" width="156" height="167"></td>
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<p><font size="3">Second, you will define the movement
of fractal trees. </font></p>
<p><font size="3">"<b>Dimension</b>" represents
the number of iterations of adding branches to
an initial tree trunk. The IFS-fractal tree grows
up following restrictive branch-adding rules.
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<p><font size="3">"<b>Branch</b>" parameter
defines how many new branches are added to an
existing branch per iteration. So, the larger
values for "Dimension" and "Branches"
mean more complex tree generated. </font></p>
<p><font size="3">The motion of the tree is defined
by three parameters:<br>
(1) <b>Morph speed</b>, (2) <b>Rotation speed</b>,
and (3) <b>Rotation speed 2</b>:</font></p>
<p><font size="3">(1) <b>Morph speed</b> decides
how fast the whole tree changes its shape.</font></p>
<p><font size="3">(2) <b>Rotation speed</b> decides
how fast each branch of the tree rotates.</font></p>
<p><font size="3">(3) <b>Rotation speed 2</b> decides
the rotation speed of the whole tree.</font></p>
<p><font size="3">Next, look at below-left picture
and find "<b>Length</b>" parameter.
This is the length of an initial tree trunk. After
every iteration, shorter branches are added first
to the initial trunk and after that each branch.
"<b>Decline</b>" parameter (normally,
0 < "<b>Decline</b>" < 1) controls
the magnification of branch length per iteration.
For example. 0.75 for the value gives 25% decrease
of the length for each iteration. </font></p>
<p><font size="3">Note: A value for "<b>Decline</b>"
can be more than 1. However, it is unnatural to
see such a tree! For instance, 1.25 gives 25%
increase of the length for each iteration.</font></p>
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<td width="50%"><img src="images/ifsfract4.gif" width="150" height="191"></td>
<td width="50%"><font size="3">"<b>Pen size</b>"
sets the constant thickness of a branch up to size
3. Or, alternatively, you can use a progressive
pen with your choice of progressive speed at "<b>Pen
progr. step</b>". To do that, just check "<b>Progress</b>"
box and enter a value between 1 and 16 in "<b>Pen
progr. step</b>" field.</font></td>
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<p><font size="3">You can also inverse the progression
by checking "<b>Prog. inverse</b>" box. </font></p>
<p><font size="3">"<b>Iterskip</b>" is totally
a different parameter. With this parameter enabled,
some joints between branches are skipped to be rendered,
so it produces a strange effect.</font></p>
<p><font size="3">Finally, select the gradient colour
painted over the whole fractal tree at "<b>First
colour</b>" and "<b>Last colour</b>".</font></p>
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<p><font size="3">We have only discussed about the ifsfract
specific parameters. For generic parameters, please
read <a href="wizard.html">wizard</a> section.</font></p>
<p><font size="3">Proceed to<a href="wizard.html#4"> the
textscroll menu</a> if you have checked the textscroll
box; otherwise go to <a href="wizard.html#5">the expert
menu</a>.</font></p>
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