Optical+Illusions

=Making Curves from Straight Lines - Parabolic Pursuit Curves=

Join 1 to 1 and 2 to 2... points pursue each other down one axis and along another to make a stunning optical illusion...
=The Instruction Guide= Scroll down this page for pdfs
 * [[image:08-P1360578.JPG width="371" height="515" align="center"]] || [[image:09-P1360579.JPG width="442" height="307"]]
 * ====Design with Parabolic curves,====
 * ====Square Pursuit====
 * ====Curves in Circles====
 * ====Vanishing Point Art====
 * ====Colour Wheel Trickery in Optical Illusions====
 * ====Isometric Drawing====
 * ====Isometric Minecraft==== || [[image:allencentre/14-P1360595.JPG width="405" height="315"]]

Constructed by Toni Cuthill.
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 * ====Follow the instructions below to draw a parabolic curve.====
 * ====Colour alternate squares====
 * ====Using the original points draw a background grid.====
 * ====The 2D grid enhances the optical illusion.====
 * ====**Useful tip**: the closer the points the more perfect the curve.==== ||  ||
 * [[image:01-P1360556.JPG width="415" height="316" align="center"]] || [[image:02-P1360558.JPG width="407" height="315" align="center"]] || [[image:03-P1360559.JPG width="389" height="310" align="center"]] ||  ||
 * [[image:04-P1360560.JPG width="414" height="340" align="center"]] || [[image:05-P1360561.JPG width="413" height="345" align="center"]] || [[image:allencentre/12-P1360589.JPG width="387" height="295" align="center"]] ||  ||
 * [[image:allencentre/06-P1360564.JPG width="419" height="319" align="center"]] || [[image:07-P1360573.JPG width="415" height="315" align="center"]] || [[image:1-P1360578-001.JPG width="369" height="341" align="center"]]
 * [[image:1-P1360578.JPG width="300" height="390" align="center"]]

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 * [[image:1-P1360578-004.JPG width="420" height="306" align="center"]]

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 * [[image:3-P1360605.JPG width="436" height="295"]] || ==A circle from straight lines:==
 * ====With your ruler join 2 points across the template.====
 * ====The one on the left began with a line joining 1 and 20.====
 * ====Each end of your ruler moves one point at a time.====
 * ====So, 2 joins 21, 3 joins 22, 4 joins 23 etc.====
 * ====Work your way right around the circle.====
 * ====The smaller circle in the centre will gradually appear.====

The Heart:
Emily Harrex ||  ||
 * ====As above, draw a line between 1 and 20====
 * ====This time, move one end of the ruler one space, move the other end two.====
 * So, j
 * 1 joins 20, 2 joins 22, 3 joins 24, 4 joins 26 and so on right around the circle. || [[image:2-P1360616.JPG width="374" height="310" align="center"]] ||  ||
 * [[image:1-P1360621.JPG width="430" height="336"]] || [[image:2-P1360618.JPG width="424" height="328" align="center"]] || [[image:1-P1360573.JPG width="422" height="312" align="center"]] ||  ||
 * [[image:1-P1360626.JPG width="429" height="334" align="center"]] || [[image:2-P1360622.JPG width="426" height="339" align="center"]] || [[image:1-P1360646.JPG width="413" height="334" align="center"]] ||  ||
 * [[image:3-P1360660.JPG width="432" height="324"]] || [[image:01-P1360664.JPG width="421" height="333" align="center"]] || [[image:02-P1360679.JPG width="412" height="331" align="center"]] ||  ||
 * [[image:12-P1360681.JPG width="428" height="345"]] || [[image:1-P1360634.JPG width="458" height="334" align="center"]] || [[image:2-P1360630.JPG width="413" height="296" align="center"]] ||  ||
 * [[image:1-P1360682.JPG width="430" height="316"]] || [[image:2-P1360684.JPG width="416" height="327" align="center"]] || [[image:5-P1360698.JPG width="418" height="307"]]
 * [[image:4-P1360697.JPG width="428" height="323"]] || [[image:3-P1360694.JPG width="419" height="308" align="center"]] || [[image:3-P1360686.JPG width="418" height="320"]] ||  ||
 * [[image:2-P1360700.JPG width="430" height="308"]]

his brain called "synaesthesia".
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(Click the full screen arrows to see the complete text).
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