Hilbert curve: Difference between revisions
→{{header|Fōrmulæ}}: Added L-system solution
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=={{header|Forth}}==
{{trans|Yabasic}}
{{works with|4tH
<syntaxhighlight lang="forth">include lib/graphics.4th
64 constant /width \
9 constant /length \ length of a line
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color_image 255 whiteout blue \ paint blue on white
0 dup origin! \ set point of origin
0 dup /width over dup hilbert \
s" ghilbert.ppm" save_image \ save the image
</syntaxhighlight>
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'''Solution'''
=== Recursive ===
The following defines a function that creates a graphics of the Hilbert curve of a given order and size:
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[[File:Fōrmulæ - Hilbert curve 03.png|279px]]
=== L-system ===
There are generic functions written in Fōrmulæ to compute an L-system in the page [[L-system#Fōrmulæ | L-system]].
The program that creates a Hilbert curve is:
[[File:Fōrmulæ - L-system - Hilbert curve 01.png]]
[[File:Fōrmulæ - L-system - Hilbert curve 02.png]]
=={{header|Frink}}==
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