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November 26, 2019 19:37
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| using Luxor | |
| using ColorSchemes | |
| #this. OR we could multiply amt by something based on orientation passed in. try that next | |
| function flipDiagonalBottomRight(og, pt) | |
| dx = pt.x - og.x | |
| dy = pt.y - og.y | |
| return Point(og.x + dy, og.y + dx) | |
| end | |
| function flipDiagonalBottomLeft(og, pt) | |
| dx = pt.x - og.x | |
| dy = pt.y - og.y | |
| return Point(og.x - dy, og.y - dx) | |
| end | |
| function hilbert(n, origin, amt) | |
| #move to our point, rotate at our point, then translate | |
| #gsave maybe? | |
| if(n == 0) | |
| return [origin] | |
| else | |
| blog = origin + (0, 0) | |
| bl = map(x->flipDiagonalBottomLeft(blog, x), hilbert(n-1, blog, amt)) #bottom left | |
| tlog = last(bl) + (0, -amt) | |
| tl = hilbert(n-1, tlog, amt) | |
| trog = last(tl) + (amt, 0) | |
| tr = hilbert(n-1, trog, amt) | |
| brog = last(tr) + (0, amt) | |
| br = map(x->flipDiagonalBottomRight(brog, x), hilbert(n-1, brog, amt)) #bottom left | |
| return [bl;tl;tr;br] #all the paths concatd together | |
| end | |
| end | |
| function colorgradedpathfollow(l) | |
| setlinecap("round") | |
| for (n,(a,b)) in enumerate(zip(1:length(l), 2:length(l))) | |
| sethue(get(ColorSchemes.plasma, rescale(n, 0, length(l), 0, 1))) | |
| setline(5) | |
| #circle(l[a],2,:fill) | |
| #circle(l[b],2,:fill) | |
| line(l[a],l[b], :stroke) | |
| end | |
| end | |
| function rgb(r,g,b) | |
| setcolor(r/255.0,g/255.0,b/255.0) | |
| end | |
| function frame2(scene, t) | |
| background("black") | |
| setline(1) | |
| #sethue(get(ColorSchemes.plasma, 0)) | |
| orp = O | |
| #circle(orp, 3, :fill) | |
| #prettypoly(hilbert(3,orp, 20),:stroke) #vertexlabels = (n, l) -> (text(string(n, " of ", l), halign=:center))) | |
| #prettypoly(offsetpoly(h, 10), :stroke) | |
| function shape(x1,y1,w,h,s, lines=false)::Tuple{Array{Point,1}, Array{Point,2}} | |
| pts = [Point(x1 + x*s, y1 + y*s) for x in 0:w for y in 0:h] | |
| l = polyfit([Point(x1, y1 + y*s) for y in 0:h], 1000) | |
| if lines | |
| print("\n ", t) | |
| for xp in 0:w | |
| a = polyfit([Point(x1 + xp*s, y1 + y*s) for y in 0:h], 1000) | |
| l = [l a] | |
| end | |
| for yp in 0:h | |
| b = polyfit([Point(x1 + x*s, y1 + yp*s) for x in 0:w], 1000) | |
| l = [l b] | |
| end | |
| end | |
| return pts, l | |
| end | |
| function renderlines(arr::Array{Point, 2}) | |
| _,s = size(arr) | |
| for i in 1:s | |
| poly(arr[:,i], :stroke) | |
| end | |
| end | |
| function multpt(pt::Point)::Point | |
| range = 14 * 25 | |
| x,y = pt | |
| return Point(x + t*sin(x*2pi/range) - 30*cos(y*2pi/range), y + (t/100) * 30*cos((t/50)*y*x*2pi/range^2)) | |
| end | |
| function transform(dx, dy)::Function | |
| function app(pt::Point)::Point | |
| x,y = pt | |
| return Point(x + dx, y + dy) | |
| end | |
| return app | |
| end | |
| pts, lines = shape(-400,-200, 40, 40, 10, true) | |
| #prettypoly(pts, :none, () -> circle(O, 1, :fill)) | |
| transformation = transform(10,20) ∘ multpt | |
| switched = map(transformation, lines) | |
| rgb(225,130,111) | |
| renderlines(switched) | |
| rgb(118,162,165) | |
| h = hilbert(5, orp, 12) | |
| rgb(118,162,165) | |
| prettypoly(map(transformation, h), :stroke, () -> circle(O, 1, :stroke)) | |
| #prettypoly(map(transformation, offsetpoly(h, 3)), :stroke, () -> circle(O, 1, :stroke)) | |
| end | |
| simpleanimation = Movie(1000, 1000, "animation") | |
| animate(simpleanimation, | |
| [Scene(simpleanimation, frame2, 1:200, easingfunction=easeinexpo), | |
| Scene(simpleanimation, frame2, 200:1, easingfunction=easeinexpo)], | |
| creategif=true, pathname="image.gif") |
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