field lines piece
Haldean Brown
3 years ago
| 165 | 165 |
(let ((new-state-name (nth (if (> state 0) 0 1) *pen-states*)))
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| 166 | 166 |
(unless (or (not (null (gvm-dummy-file g))) (eq new-state-name (gvm-z g)))
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(send-put-request (api-url "v1/pen") (jsown:new-js ("state" new-state-name)))
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(sleep 0.1))))
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)))
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(defun run-gcode-line (line g)
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(let* ((terms (gcode-assign-parse line))
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(load "package.lisp")
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(load "svg.lisp")
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(in-package :so3-cnc)
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(defun L (i j)
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(let* ((x (* (1+ i) 3))
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(y (* (1+ j) 3))
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(theta (* pi (/ (+ j) n) (+ 1 (expt (/ i 174) 0.8))))
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(dx (* 1.0 (sin theta)))
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(dy (* 1.0 (cos theta))))
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(list (cons (- x dx) (- y dy)) (cons (+ x dx) (+ y dy)))
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))
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(defun Ls ()
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(gathering
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(loop for i from 0 to n
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do (loop for j from 0 to n do (gather (L i j))))))
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(defun ill-x.svg () (x.svg (Ls)))
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(ql:quickload :alexandria)
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(in-package :so3-cnc)
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(defmacro gathering (&body body)
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"Run `body` to gather some things and return a fresh list of them.
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`body` will be executed with the symbol `gather` bound to a
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function of one argument. Once `body` has finished, a list of
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everything `gather` was called on will be returned.
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It's handy for pulling results out of code that executes
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procedurally and doesn't return anything, like `maphash` or
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Alexandria's `map-permutations`.
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The `gather` function can be passed to other functions, but should
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not be retained once the `gathering` form has returned (it would
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be useless to do so anyway).
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Examples:
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(gathering
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(dotimes (i 5)
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(gather i))
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=>
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(0 1 2 3 4)
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(gathering
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(mapc #'gather '(1 2 3))
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(mapc #'gather '(a b)))
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=>
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(1 2 3 a b)
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"
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(alexandria:with-gensyms (result)
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`(let ((,result nil))
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(flet ((gather (item)
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(push item ,result)
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item))
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,@body)
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(nreverse ,result))))
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(load "package.lisp")
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(load "gathering.lisp")
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(in-package :so3-cnc)
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(defparameter *svg-head*
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'(
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"<?xml version=\"1.0\" standalone=\"no\"?>"
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"<!DOCTYPE svg PUBLIC \"-//W3C//DTD SVG 1.1//EN\" \"http://www.w3.org/Graphics/SVG/1.1/DTD/svg11.dtd\">"
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))
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(defparameter *svg-style*
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'(
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"<style>"
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"svg { background: #EEE; }"
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"* { fill:none; stroke:#000; stroke-width:0.3; }"
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"</style>"
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))
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(defparameter *svg-tail* '("</svg>"))
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(defparameter n 66)
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(defun write-svg (polys stream w h)
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(flet ((write-list (lst) (mapcar (lambda (l) (format stream l)) lst))
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(write-poly (poly) (progn
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(format stream "<polygon points=\"")
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(dolist (p poly) (format stream "~,2F ~,2F " (car p) (cdr p)))
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(format stream "\"/>")
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)))
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(progn
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(write-list *svg-head*)
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(format stream
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"<svg viewBox=\"0 0 ~,2F ~,2F\" version=\"1.1\" xmlns=\"http://www.w3.org/2000/svg\">"
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w h)
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(write-list *svg-style*)
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(mapcar #'write-poly polys)
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(write-list *svg-tail*)
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nil
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)))
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(defun x.svg (polys)
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(with-open-file (x "x.svg" :direction :output :if-exists :supersede)
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(write-svg polys x 210 210)))
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