Sierpinski arrowhead curve: Difference between revisions
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=={{header|Phix}}== |
=={{header|Phix}}== |
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{{libheader|Phix/pGUI}} |
{{libheader|Phix/pGUI}} |
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You can run this online [http://phix.x10.mx/p2js/Sierpinski_arrowhead_curve.htm here], and experiment with [shift] +/- as noted below. |
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<!--<lang Phix>(phixonline)--> |
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-- |
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<span style="color: #000080;font-style:italic;">-- |
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-- Draws curves lo to hi (simultaneously), initially {6,6}, max {10,10} |
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-- demo\rosetta\Sierpinski_arrowhead_curve.exw |
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-- Press +/- to change hi, shift +/- to change lo. |
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-- =========================================== |
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-- ("=_" are also mapped to "+-", for the non-numpad +/-) |
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-- |
-- |
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-- Draws curves lo to hi (simultaneously), initially {6,6}, max {10,10}, min {1,1} |
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include pGUI.e |
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-- Press +/- to change hi, shift +/- to change lo. |
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-- ("=_" are also mapped to "+-", for the non-numpad +/-) |
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Ihandle dlg, canvas |
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--</span> |
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cdCanvas cddbuffer, cdcanvas |
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<span style="color: #008080;">with</span> <span style="color: #008080;">javascript_semantics</span> |
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<span style="color: #008080;">include</span> <span style="color: #000000;">pGUI</span><span style="color: #0000FF;">.</span><span style="color: #000000;">e</span> |
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integer width, height, |
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lo = 6, hi = 6 |
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<span style="color: #004080;">Ihandle</span> <span style="color: #000000;">dlg</span><span style="color: #0000FF;">,</span> <span style="color: #000000;">canvas</span> |
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atom cx, cy, h, theta |
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<span style="color: #004080;">cdCanvas</span> <span style="color: #000000;">cddbuffer</span><span style="color: #0000FF;">,</span> <span style="color: #000000;">cdcanvas</span> |
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integer iy = +1 |
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<span style="color: #004080;">integer</span> <span style="color: #000000;">width</span><span style="color: #0000FF;">,</span> <span style="color: #000000;">height</span><span style="color: #0000FF;">,</span> |
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<span style="color: #000000;">lo</span> <span style="color: #0000FF;">=</span> <span style="color: #000000;">6</span><span style="color: #0000FF;">,</span> <span style="color: #000000;">hi</span> <span style="color: #0000FF;">=</span> <span style="color: #000000;">6</span> |
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procedure draw_line(atom l) |
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<span style="color: #004080;">atom</span> <span style="color: #000000;">cx</span><span style="color: #0000FF;">,</span> <span style="color: #000000;">cy</span><span style="color: #0000FF;">,</span> <span style="color: #000000;">h</span><span style="color: #0000FF;">,</span> <span style="color: #000000;">theta</span> |
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cdCanvasVertex(cddbuffer, cx-width/2+h, (height-cy)*iy+2*h) |
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cx += l*cos(theta*CD_DEG2RAD) |
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<span style="color: #004080;">integer</span> <span style="color: #000000;">iy</span> <span style="color: #0000FF;">=</span> <span style="color: #0000FF;">+</span><span style="color: #000000;">1</span> |
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cy += l*sin(theta*CD_DEG2RAD) |
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end procedure |
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<span style="color: #008080;">procedure</span> <span style="color: #000000;">draw_line</span><span style="color: #0000FF;">(</span><span style="color: #004080;">atom</span> <span style="color: #000000;">l</span><span style="color: #0000FF;">)</span> |
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<span style="color: #7060A8;">cdCanvasVertex</span><span style="color: #0000FF;">(</span><span style="color: #000000;">cddbuffer</span><span style="color: #0000FF;">,</span> <span style="color: #000000;">cx</span><span style="color: #0000FF;">-</span><span style="color: #000000;">width</span><span style="color: #0000FF;">/</span><span style="color: #000000;">2</span><span style="color: #0000FF;">+</span><span style="color: #000000;">h</span><span style="color: #0000FF;">,</span> <span style="color: #0000FF;">(</span><span style="color: #000000;">height</span><span style="color: #0000FF;">-</span><span style="color: #000000;">cy</span><span style="color: #0000FF;">)*</span><span style="color: #000000;">iy</span><span style="color: #0000FF;">+</span><span style="color: #000000;">2</span><span style="color: #0000FF;">*</span><span style="color: #000000;">h</span><span style="color: #0000FF;">)</span> |
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procedure turn(integer angle) |
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<span style="color: #000000;">cx</span> <span style="color: #0000FF;">+=</span> <span style="color: #000000;">l</span><span style="color: #0000FF;">*</span><span style="color: #7060A8;">cos</span><span style="color: #0000FF;">(</span><span style="color: #000000;">theta</span><span style="color: #0000FF;">*</span><span style="color: #004600;">CD_DEG2RAD</span><span style="color: #0000FF;">)</span> |
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theta = mod(theta+angle,360) |
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<span style="color: #000000;">cy</span> <span style="color: #0000FF;">+=</span> <span style="color: #000000;">l</span><span style="color: #0000FF;">*</span><span style="color: #7060A8;">sin</span><span style="color: #0000FF;">(</span><span style="color: #000000;">theta</span><span style="color: #0000FF;">*</span><span style="color: #004600;">CD_DEG2RAD</span><span style="color: #0000FF;">)</span> |
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end procedure |
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<span style="color: #008080;">end</span> <span style="color: #008080;">procedure</span> |
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procedure curve(integer order, atom l, integer angle) |
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<span style="color: #008080;">procedure</span> <span style="color: #000000;">turn</span><span style="color: #0000FF;">(</span><span style="color: #004080;">integer</span> <span style="color: #000000;">angle</span><span style="color: #0000FF;">)</span> |
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if order=0 then |
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<span style="color: #000000;">theta</span> <span style="color: #0000FF;">=</span> <span style="color: #7060A8;">mod</span><span style="color: #0000FF;">(</span><span style="color: #000000;">theta</span><span style="color: #0000FF;">+</span><span style="color: #000000;">angle</span><span style="color: #0000FF;">,</span><span style="color: #000000;">360</span><span style="color: #0000FF;">)</span> |
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draw_line(l) |
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<span style="color: #008080;">end</span> <span style="color: #008080;">procedure</span> |
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else |
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curve(order-1, l/2, -angle) |
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<span style="color: #008080;">procedure</span> <span style="color: #000000;">curve</span><span style="color: #0000FF;">(</span><span style="color: #004080;">integer</span> <span style="color: #000000;">order</span><span style="color: #0000FF;">,</span> <span style="color: #004080;">atom</span> <span style="color: #000000;">l</span><span style="color: #0000FF;">,</span> <span style="color: #004080;">integer</span> <span style="color: #000000;">angle</span><span style="color: #0000FF;">)</span> |
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turn(angle) |
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<span style="color: #008080;">if</span> <span style="color: #000000;">order</span><span style="color: #0000FF;">=</span><span style="color: #000000;">0</span> <span style="color: #008080;">then</span> |
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curve(order-1, l/2, angle) |
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<span style="color: #000000;">draw_line</span><span style="color: #0000FF;">(</span><span style="color: #000000;">l</span><span style="color: #0000FF;">)</span> |
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turn(angle) |
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<span style="color: #008080;">else</span> |
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curve(order-1, l/2, -angle) |
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<span style="color: #000000;">curve</span><span style="color: #0000FF;">(</span><span style="color: #000000;">order</span><span style="color: #0000FF;">-</span><span style="color: #000000;">1</span><span style="color: #0000FF;">,</span> <span style="color: #000000;">l</span><span style="color: #0000FF;">/</span><span style="color: #000000;">2</span><span style="color: #0000FF;">,</span> <span style="color: #0000FF;">-</span><span style="color: #000000;">angle</span><span style="color: #0000FF;">)</span> |
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end if |
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<span style="color: #000000;">turn</span><span style="color: #0000FF;">(</span><span style="color: #000000;">angle</span><span style="color: #0000FF;">)</span> |
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end procedure |
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<span style="color: #000000;">curve</span><span style="color: #0000FF;">(</span><span style="color: #000000;">order</span><span style="color: #0000FF;">-</span><span style="color: #000000;">1</span><span style="color: #0000FF;">,</span> <span style="color: #000000;">l</span><span style="color: #0000FF;">/</span><span style="color: #000000;">2</span><span style="color: #0000FF;">,</span> <span style="color: #000000;">angle</span><span style="color: #0000FF;">)</span> |
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<span style="color: #000000;">turn</span><span style="color: #0000FF;">(</span><span style="color: #000000;">angle</span><span style="color: #0000FF;">)</span> |
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procedure sierpinski_arrowhead_curve(integer order, atom l) |
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<span style="color: #000000;">curve</span><span style="color: #0000FF;">(</span><span style="color: #000000;">order</span><span style="color: #0000FF;">-</span><span style="color: #000000;">1</span><span style="color: #0000FF;">,</span> <span style="color: #000000;">l</span><span style="color: #0000FF;">/</span><span style="color: #000000;">2</span><span style="color: #0000FF;">,</span> <span style="color: #0000FF;">-</span><span style="color: #000000;">angle</span><span style="color: #0000FF;">)</span> |
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-- If order is even we can just draw the curve. |
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<span style="color: #008080;">end</span> <span style="color: #008080;">if</span> |
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if and_bits(order,1)=0 then |
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<span style="color: #008080;">end</span> <span style="color: #008080;">procedure</span> |
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curve(order, l, +60) |
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else -- order is odd |
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<span style="color: #008080;">procedure</span> <span style="color: #000000;">sierpinski_arrowhead_curve</span><span style="color: #0000FF;">(</span><span style="color: #004080;">integer</span> <span style="color: #000000;">order</span><span style="color: #0000FF;">,</span> <span style="color: #004080;">atom</span> <span style="color: #000000;">l</span><span style="color: #0000FF;">)</span> |
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turn( +60) |
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<span style="color: #000080;font-style:italic;">-- If order is even we can just draw the curve.</span> |
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curve(order, l, -60) |
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<span style="color: #008080;">if</span> <span style="color: #7060A8;">and_bits</span><span style="color: #0000FF;">(</span><span style="color: #000000;">order</span><span style="color: #0000FF;">,</span><span style="color: #000000;">1</span><span style="color: #0000FF;">)=</span><span style="color: #000000;">0</span> <span style="color: #008080;">then</span> |
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end if |
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<span style="color: #000000;">curve</span><span style="color: #0000FF;">(</span><span style="color: #000000;">order</span><span style="color: #0000FF;">,</span> <span style="color: #000000;">l</span><span style="color: #0000FF;">,</span> <span style="color: #0000FF;">+</span><span style="color: #000000;">60</span><span style="color: #0000FF;">)</span> |
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draw_line(l) |
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<span style="color: #008080;">else</span> <span style="color: #000080;font-style:italic;">-- order is odd</span> |
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end procedure |
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<span style="color: #000000;">turn</span><span style="color: #0000FF;">(</span> <span style="color: #0000FF;">+</span><span style="color: #000000;">60</span><span style="color: #0000FF;">)</span> |
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<span style="color: #000000;">curve</span><span style="color: #0000FF;">(</span><span style="color: #000000;">order</span><span style="color: #0000FF;">,</span> <span style="color: #000000;">l</span><span style="color: #0000FF;">,</span> <span style="color: #0000FF;">-</span><span style="color: #000000;">60</span><span style="color: #0000FF;">)</span> |
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function redraw_cb(Ihandle /*ih*/, integer /*posx*/, integer /*posy*/) |
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<span style="color: #008080;">end</span> <span style="color: #008080;">if</span> |
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{width, height} = IupGetIntInt(canvas, "DRAWSIZE") |
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<span style="color: #000000;">draw_line</span><span style="color: #0000FF;">(</span><span style="color: #000000;">l</span><span style="color: #0000FF;">)</span> |
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cdCanvasActivate(cddbuffer) |
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<span style="color: #008080;">end</span> <span style="color: #008080;">procedure</span> |
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for order=lo to hi do |
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cx = width/2 |
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<span style="color: #008080;">function</span> <span style="color: #000000;">redraw_cb</span><span style="color: #0000FF;">(</span><span style="color: #004080;">Ihandle</span> <span style="color: #000080;font-style:italic;">/*ih*/</span><span style="color: #0000FF;">,</span> <span style="color: #004080;">integer</span> <span style="color: #000080;font-style:italic;">/*posx*/</span><span style="color: #0000FF;">,</span> <span style="color: #000080;font-style:italic;">/*posy*/</span><span style="color: #0000FF;">)</span> |
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cy = height |
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<span style="color: #0000FF;">{</span><span style="color: #000000;">width</span><span style="color: #0000FF;">,</span> <span style="color: #000000;">height</span><span style="color: #0000FF;">}</span> <span style="color: #0000FF;">=</span> <span style="color: #7060A8;">IupGetIntInt</span><span style="color: #0000FF;">(</span><span style="color: #000000;">canvas</span><span style="color: #0000FF;">,</span> <span style="color: #008000;">"DRAWSIZE"</span><span style="color: #0000FF;">)</span> |
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h = cx/2 |
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<span style="color: #7060A8;">cdCanvasActivate</span><span style="color: #0000FF;">(</span><span style="color: #000000;">cddbuffer</span><span style="color: #0000FF;">)</span> |
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theta = 0 |
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<span style="color: #008080;">for</span> <span style="color: #000000;">order</span><span style="color: #0000FF;">=</span><span style="color: #000000;">lo</span> <span style="color: #008080;">to</span> <span style="color: #000000;">hi</span> <span style="color: #008080;">do</span> |
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iy = iff(and_bits(order,1)?-1:+1) |
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<span style="color: #000000;">cx</span> <span style="color: #0000FF;">=</span> <span style="color: #000000;">width</span><span style="color: #0000FF;">/</span><span style="color: #000000;">2</span> |
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cdCanvasBegin(cddbuffer, CD_OPEN_LINES) |
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<span style="color: #000000;">cy</span> <span style="color: #0000FF;">=</span> <span style="color: #000000;">height</span> |
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sierpinski_arrowhead_curve(order, cx) |
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<span style="color: #000000;">h</span> <span style="color: #0000FF;">=</span> <span style="color: #000000;">cx</span><span style="color: #0000FF;">/</span><span style="color: #000000;">2</span> |
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cdCanvasEnd(cddbuffer) |
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<span style="color: #000000;">theta</span> <span style="color: #0000FF;">=</span> <span style="color: #000000;">0</span> |
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end for |
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<span style="color: #000000;">iy</span> <span style="color: #0000FF;">=</span> <span style="color: #008080;">iff</span><span style="color: #0000FF;">(</span><span style="color: #7060A8;">and_bits</span><span style="color: #0000FF;">(</span><span style="color: #000000;">order</span><span style="color: #0000FF;">,</span><span style="color: #000000;">1</span><span style="color: #0000FF;">)?-</span><span style="color: #000000;">1</span><span style="color: #0000FF;">:+</span><span style="color: #000000;">1</span><span style="color: #0000FF;">)</span> |
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cdCanvasFlush(cddbuffer) |
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<span style="color: #7060A8;">cdCanvasBegin</span><span style="color: #0000FF;">(</span><span style="color: #000000;">cddbuffer</span><span style="color: #0000FF;">,</span> <span style="color: #004600;">CD_OPEN_LINES</span><span style="color: #0000FF;">)</span> |
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return IUP_DEFAULT |
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<span style="color: #000000;">sierpinski_arrowhead_curve</span><span style="color: #0000FF;">(</span><span style="color: #000000;">order</span><span style="color: #0000FF;">,</span> <span style="color: #000000;">cx</span><span style="color: #0000FF;">)</span> |
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end function |
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<span style="color: #7060A8;">cdCanvasEnd</span><span style="color: #0000FF;">(</span><span style="color: #000000;">cddbuffer</span><span style="color: #0000FF;">)</span> |
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<span style="color: #008080;">end</span> <span style="color: #008080;">for</span> |
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function map_cb(Ihandle ih) |
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<span style="color: #7060A8;">cdCanvasFlush</span><span style="color: #0000FF;">(</span><span style="color: #000000;">cddbuffer</span><span style="color: #0000FF;">)</span> |
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cdcanvas = cdCreateCanvas(CD_IUP, ih) |
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<span style="color: #008080;">return</span> <span style="color: #004600;">IUP_DEFAULT</span> |
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cddbuffer = cdCreateCanvas(CD_DBUFFER, cdcanvas) |
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<span style="color: #008080;">end</span> <span style="color: #008080;">function</span> |
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cdCanvasSetBackground(cddbuffer, CD_WHITE) |
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cdCanvasSetForeground(cddbuffer, CD_BLUE) |
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<span style="color: #008080;">function</span> <span style="color: #000000;">map_cb</span><span style="color: #0000FF;">(</span><span style="color: #004080;">Ihandle</span> <span style="color: #000000;">ih</span><span style="color: #0000FF;">)</span> |
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return IUP_DEFAULT |
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<span style="color: #000000;">cdcanvas</span> <span style="color: #0000FF;">=</span> <span style="color: #7060A8;">cdCreateCanvas</span><span style="color: #0000FF;">(</span><span style="color: #004600;">CD_IUP</span><span style="color: #0000FF;">,</span> <span style="color: #000000;">ih</span><span style="color: #0000FF;">)</span> |
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end function |
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<span style="color: #000000;">cddbuffer</span> <span style="color: #0000FF;">=</span> <span style="color: #7060A8;">cdCreateCanvas</span><span style="color: #0000FF;">(</span><span style="color: #004600;">CD_DBUFFER</span><span style="color: #0000FF;">,</span> <span style="color: #000000;">cdcanvas</span><span style="color: #0000FF;">)</span> |
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<span style="color: #7060A8;">cdCanvasSetBackground</span><span style="color: #0000FF;">(</span><span style="color: #000000;">cddbuffer</span><span style="color: #0000FF;">,</span> <span style="color: #004600;">CD_WHITE</span><span style="color: #0000FF;">)</span> |
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function key_cb(Ihandle /*ih*/, atom c) |
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<span style="color: #7060A8;">cdCanvasSetForeground</span><span style="color: #0000FF;">(</span><span style="color: #000000;">cddbuffer</span><span style="color: #0000FF;">,</span> <span style="color: #004600;">CD_BLUE</span><span style="color: #0000FF;">)</span> |
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if c=K_ESC then return IUP_CLOSE end if |
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<span style="color: #008080;">return</span> <span style="color: #004600;">IUP_DEFAULT</span> |
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if find(c,"+=-_") then |
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<span style="color: #008080;">end</span> <span style="color: #008080;">function</span> |
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bool bShift = IupGetInt(NULL,"SHIFTKEY") |
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if c='+' or c='=' then |
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<span style="color: #008080;">function</span> <span style="color: #000000;">key_cb</span><span style="color: #0000FF;">(</span><span style="color: #004080;">Ihandle</span> <span style="color: #000080;font-style:italic;">/*ih*/</span><span style="color: #0000FF;">,</span> <span style="color: #004080;">atom</span> <span style="color: #000000;">c</span><span style="color: #0000FF;">)</span> |
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if bShift then |
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<span style="color: #008080;">if</span> <span style="color: #000000;">c</span><span style="color: #0000FF;">=</span><span style="color: #004600;">K_ESC</span> <span style="color: #008080;">then</span> <span style="color: #008080;">return</span> <span style="color: #004600;">IUP_CLOSE</span> <span style="color: #008080;">end</span> <span style="color: #008080;">if</span> |
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lo = min(lo+1,hi) |
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<span style="color: #008080;">if</span> <span style="color: #7060A8;">find</span><span style="color: #0000FF;">(</span><span style="color: #000000;">c</span><span style="color: #0000FF;">,</span><span style="color: #008000;">"+=-_"</span><span style="color: #0000FF;">)</span> <span style="color: #008080;">then</span> |
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else |
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<span style="color: #004080;">bool</span> <span style="color: #000000;">bShift</span> <span style="color: #0000FF;">=</span> <span style="color: #7060A8;">IupGetInt</span><span style="color: #0000FF;">(</span><span style="color: #004600;">NULL</span><span style="color: #0000FF;">,</span><span style="color: #008000;">"SHIFTKEY"</span><span style="color: #0000FF;">)</span> |
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hi = min(10,hi+1) |
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<span style="color: #008080;">if</span> <span style="color: #000000;">c</span><span style="color: #0000FF;">=</span><span style="color: #008000;">'+'</span> <span style="color: #008080;">or</span> <span style="color: #000000;">c</span><span style="color: #0000FF;">=</span><span style="color: #008000;">'='</span> <span style="color: #008080;">then</span> |
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end if |
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<span style="color: #008080;">if</span> <span style="color: #000000;">bShift</span> <span style="color: #008080;">then</span> |
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elsif c='-' or c='_' then |
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<span style="color: #000000;">lo</span> <span style="color: #0000FF;">=</span> <span style="color: #7060A8;">min</span><span style="color: #0000FF;">(</span><span style="color: #000000;">lo</span><span style="color: #0000FF;">+</span><span style="color: #000000;">1</span><span style="color: #0000FF;">,</span><span style="color: #000000;">hi</span><span style="color: #0000FF;">)</span> |
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if bShift then |
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<span style="color: #008080;">else</span> |
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<span style="color: #000000;">hi</span> <span style="color: #0000FF;">=</span> <span style="color: #7060A8;">min</span><span style="color: #0000FF;">(</span><span style="color: #000000;">10</span><span style="color: #0000FF;">,</span><span style="color: #000000;">hi</span><span style="color: #0000FF;">+</span><span style="color: #000000;">1</span><span style="color: #0000FF;">)</span> |
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else |
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<span style="color: #008080;">end</span> <span style="color: #008080;">if</span> |
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<span style="color: #008080;">elsif</span> <span style="color: #000000;">c</span><span style="color: #0000FF;">=</span><span style="color: #008000;">'-'</span> <span style="color: #008080;">or</span> <span style="color: #000000;">c</span><span style="color: #0000FF;">=</span><span style="color: #008000;">'_'</span> <span style="color: #008080;">then</span> |
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end if |
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<span style="color: #008080;">if</span> <span style="color: #000000;">bShift</span> <span style="color: #008080;">then</span> |
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end if |
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<span style="color: #000000;">lo</span> <span style="color: #0000FF;">=</span> <span style="color: #7060A8;">max</span><span style="color: #0000FF;">(</span><span style="color: #000000;">1</span><span style="color: #0000FF;">,</span><span style="color: #000000;">lo</span><span style="color: #0000FF;">-</span><span style="color: #000000;">1</span><span style="color: #0000FF;">)</span> |
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IupSetStrAttribute(dlg, "TITLE", "Sierpinski arrowhead curve (%d..%d)",{lo,hi}) |
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<span style="color: #008080;">else</span> |
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cdCanvasClear(cddbuffer) |
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<span style="color: #000000;">hi</span> <span style="color: #0000FF;">=</span> <span style="color: #7060A8;">max</span><span style="color: #0000FF;">(</span><span style="color: #000000;">lo</span><span style="color: #0000FF;">,</span><span style="color: #000000;">hi</span><span style="color: #0000FF;">-</span><span style="color: #000000;">1</span><span style="color: #0000FF;">)</span> |
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IupUpdate(canvas) |
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<span style="color: #008080;">end</span> <span style="color: #008080;">if</span> |
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end if |
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<span style="color: #008080;">end</span> <span style="color: #008080;">if</span> |
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return IUP_CONTINUE |
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<span style="color: #7060A8;">IupSetStrAttribute</span><span style="color: #0000FF;">(</span><span style="color: #000000;">dlg</span><span style="color: #0000FF;">,</span> <span style="color: #008000;">"TITLE"</span><span style="color: #0000FF;">,</span> <span style="color: #008000;">"Sierpinski arrowhead curve (%d..%d)"</span><span style="color: #0000FF;">,{</span><span style="color: #000000;">lo</span><span style="color: #0000FF;">,</span><span style="color: #000000;">hi</span><span style="color: #0000FF;">})</span> |
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end function |
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<span style="color: #7060A8;">cdCanvasClear</span><span style="color: #0000FF;">(</span><span style="color: #000000;">cddbuffer</span><span style="color: #0000FF;">)</span> |
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<span style="color: #7060A8;">IupUpdate</span><span style="color: #0000FF;">(</span><span style="color: #000000;">canvas</span><span style="color: #0000FF;">)</span> |
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procedure main() |
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<span style="color: #008080;">end</span> <span style="color: #008080;">if</span> |
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IupOpen() |
|||
<span style="color: #008080;">return</span> <span style="color: #004600;">IUP_DEFAULT</span> |
|||
<span style="color: #008080;">end</span> <span style="color: #008080;">function</span> |
|||
canvas = IupCanvas(NULL) |
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IupSetAttribute(canvas, "RASTERSIZE", "770x770") |
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<span style="color: #008080;">procedure</span> <span style="color: #000000;">main</span><span style="color: #0000FF;">()</span> |
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IupSetCallback(canvas, "MAP_CB", Icallback("map_cb")) |
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<span style="color: #7060A8;">IupOpen</span><span style="color: #0000FF;">()</span> |
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IupSetCallback(canvas, "ACTION", Icallback("redraw_cb")) |
|||
<span style="color: #000000;">canvas</span> <span style="color: #0000FF;">=</span> <span style="color: #7060A8;">IupCanvas</span><span style="color: #0000FF;">(</span><span style="color: #004600;">NULL</span><span style="color: #0000FF;">)</span> |
|||
dlg = IupDialog(canvas) |
|||
<span style="color: #7060A8;">IupSetAttribute</span><span style="color: #0000FF;">(</span><span style="color: #000000;">canvas</span><span style="color: #0000FF;">,</span> <span style="color: #008000;">"RASTERSIZE"</span><span style="color: #0000FF;">,</span> <span style="color: #008000;">"770x770"</span><span style="color: #0000FF;">)</span> |
|||
IupSetAttribute(dlg, "TITLE", "Sierpinski arrowhead curve (6..6)") |
|||
<span style="color: #7060A8;">IupSetCallback</span><span style="color: #0000FF;">(</span><span style="color: #000000;">canvas</span><span style="color: #0000FF;">,</span> <span style="color: #008000;">"MAP_CB"</span><span style="color: #0000FF;">,</span> <span style="color: #7060A8;">Icallback</span><span style="color: #0000FF;">(</span><span style="color: #008000;">"map_cb"</span><span style="color: #0000FF;">))</span> |
|||
IupSetCallback(dlg, "K_ANY", Icallback("key_cb")) |
|||
<span style="color: #7060A8;">IupSetCallback</span><span style="color: #0000FF;">(</span><span style="color: #000000;">canvas</span><span style="color: #0000FF;">,</span> <span style="color: #008000;">"ACTION"</span><span style="color: #0000FF;">,</span> <span style="color: #7060A8;">Icallback</span><span style="color: #0000FF;">(</span><span style="color: #008000;">"redraw_cb"</span><span style="color: #0000FF;">))</span> |
|||
IupMap(dlg) |
|||
<span style="color: #000000;">dlg</span> <span style="color: #0000FF;">=</span> <span style="color: #7060A8;">IupDialog</span><span style="color: #0000FF;">(</span><span style="color: #000000;">canvas</span><span style="color: #0000FF;">)</span> |
|||
IupShowXY(dlg,IUP_CENTER,IUP_CENTER) |
|||
<span style="color: #7060A8;">IupSetAttribute</span><span style="color: #0000FF;">(</span><span style="color: #000000;">dlg</span><span style="color: #0000FF;">,</span> <span style="color: #008000;">"TITLE"</span><span style="color: #0000FF;">,</span> <span style="color: #008000;">"Sierpinski arrowhead curve (6..6)"</span><span style="color: #0000FF;">)</span> |
|||
IupMainLoop() |
|||
<span style="color: #7060A8;">IupSetCallback</span><span style="color: #0000FF;">(</span><span style="color: #000000;">dlg</span><span style="color: #0000FF;">,</span> <span style="color: #008000;">"K_ANY"</span><span style="color: #0000FF;">,</span> <span style="color: #7060A8;">Icallback</span><span style="color: #0000FF;">(</span><span style="color: #008000;">"key_cb"</span><span style="color: #0000FF;">))</span> |
|||
IupClose() |
|||
end procedure |
|||
<span style="color: #7060A8;">IupMap</span><span style="color: #0000FF;">(</span><span style="color: #000000;">dlg</span><span style="color: #0000FF;">)</span> |
|||
<span style="color: #7060A8;">IupShowXY</span><span style="color: #0000FF;">(</span><span style="color: #000000;">dlg</span><span style="color: #0000FF;">,</span><span style="color: #004600;">IUP_CENTER</span><span style="color: #0000FF;">,</span><span style="color: #004600;">IUP_CENTER</span><span style="color: #0000FF;">)</span> |
|||
main()</lang> |
|||
<span style="color: #008080;">if</span> <span style="color: #7060A8;">platform</span><span style="color: #0000FF;">()!=</span><span style="color: #004600;">JS</span> <span style="color: #008080;">then</span> |
|||
<span style="color: #7060A8;">IupMainLoop</span><span style="color: #0000FF;">()</span> |
|||
<span style="color: #7060A8;">IupClose</span><span style="color: #0000FF;">()</span> |
|||
<span style="color: #008080;">end</span> <span style="color: #008080;">if</span> |
|||
<span style="color: #008080;">end</span> <span style="color: #008080;">procedure</span> |
|||
<span style="color: #000000;">main</span><span style="color: #0000FF;">()</span> |
|||
<!--</lang>--> |
|||
=={{header|Processing}}== |
=={{header|Processing}}== |