Hilbert curve: Difference between revisions
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m (→{{header|Lua}}) |
(Completed ASCII line drawing with turnarounds) |
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Lindenmayer: |
Lindenmayer: |
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A,B are Lindenmayer AXIOMS |
* A,B are Lindenmayer AXIOMS |
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Line drawing: |
Line drawing: |
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+,- turn right, left |
* +,- turn right, left |
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F draw line forward |
* F draw line forward |
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<num> repeat the following draw command <num> times |
* <num> repeat the following draw command <num> times |
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<any> move on canvas without drawing |
* <any> move on canvas without drawing |
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<lang lua>-- any version from LuaJIT 2.0/5.1, Lua 5.2, Lua 5.3 to LuaJIT 2.1.0-beta3-readline |
<lang lua>-- any version from LuaJIT 2.0/5.1, Lua 5.2, Lua 5.3 to LuaJIT 2.1.0-beta3-readline |
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local bit=bit32 or bit -- Lua 5.2/5.3 compatibilty |
local bit=bit32 or bit -- Lua 5.2/5.3 compatibilty |
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function draw(s) |
function draw(s) |
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local char={ |
local char={ |
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{"─","┘","┐",}, -- r |
{"─","┘","╴","┐",}, -- r |
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{"│","┐","┌",}, -- up |
{"│","┐","╷","┌",}, -- up |
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{"─","┌","└",}, -- l |
{"─","┌","╶","└",}, -- l |
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{"│","└","┘",}, -- down |
{"│","└","╵","┘",}, -- down |
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} |
} |
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local scr={} |
local scr={} |
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draw(str:hilbert(n)) |
draw(str:hilbert(n)) |
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</lang> |
</lang> |
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{{output}} luajit hilbert.lua 4 |
{{output}} luajit hilbert.lua 4 1M9FAF-4F2+2F-2F-2F++4F-F-4F+2F+2F+2F++3F+2F+3F--4FA10F-16F-58F-16F- |
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<pre> |
<pre> |
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┌─────────────────────────────────────────────────────────┐ |
┌─────────────────────────────────────────────────────────┐ |
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│ ┌┘└┐└┘┌┘└┐└┘┌┘└┐ ┌┘└┐└┘┌┘└┐└┘┌┘└┐ │ |
│ ┌┘└┐└┘┌┘└┐└┘┌┘└┐ ┌┘└┐└┘┌┘└┐└┘┌┘└┐ │ |
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│ │┌┐│┌┐└┐┌┘┌┐│┌┐│ │┌┐│┌┐└┐┌┘┌┐│┌┐│ │ |
│ │┌┐│┌┐└┐┌┘┌┐│┌┐│ │┌┐│┌┐└┐┌┘┌┐│┌┐│ │ |
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│ |
│ └┘└┘│└─┘└─┘│└┘└┘╷ ╷┌─┐ └┘└┘│└─┘└─┘│└┘└┘ │ |
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│ ┌┐┌┐│┌─┐┌─┐│┌┐┌┐│ ││ │ ┌┐┌┐│┌─┐┌─┐│┌┐┌┐ │ |
│ ┌┐┌┐│┌─┐┌─┐│┌┐┌┐│ ││ │ ┌┐┌┐│┌─┐┌─┐│┌┐┌┐ │ |
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│ │└┘│└┘┌┘└┐└┘│└┘│├─┤├─┴┐│└┘│└┘┌┘└┐└┘│└┘│ │ |
│ │└┘│└┘┌┘└┐└┘│└┘│├─┤├─┴┐│└┘│└┘┌┘└┐└┘│└┘│ │ |
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│ └┐┌┘┌┐└┐┌┘┌┐└┐┌┘│ ││ │└┐┌┘┌┐└┐┌┘┌┐└┐┌┘ │ |
│ └┐┌┘┌┐└┐┌┘┌┐└┐┌┘│ ││ │└┐┌┘┌┐└┐┌┘┌┐└┐┌┘ │ |
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└──────────┘└─┘└─┘└─┘└─┘└─┘ └┴──┴─┘└─┘└─┘└─┘└─┘└──────────┘ |
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</pre> |
</pre> |
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