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203 lines
5.1 KiB
203 lines
5.1 KiB
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<title>JavaScript <=> PaperScript example</title> |
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<code mode="text/html"> |
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<!DOCTYPE html> |
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<html> |
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<head> |
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<script type="text/javascript" src="paper.js"></script> |
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<script type="text/javascript"> |
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var ppp = new paper.Path(); |
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</script> |
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<script type="text/javascript" src="lindenmeyer-system.js" canvas="canvas"></script> |
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<script type="text/paperscript" canvas="canvas"> |
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/* |
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var r = generate('A'.split(''), |
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[ |
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['A'.split(''), 'AB'.split('')], |
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//['x'.split(''), 'X'.split('')], |
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//['B'.split(''), 'C'.split('')] |
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['B'.split(''), 'A'.split('')] |
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] |
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, 4); |
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*/ |
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/************************************************ |
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* Dragon Curve |
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************************************************/ |
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function dragon_curve(variant) { |
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project.clear(); |
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var r = generate( |
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'FX'.split(''), |
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[ |
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['X'.split(''), 'X+YF+'.split('')], |
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['Y'.split(''), '-FX-Y'.split('')] |
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], |
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12 |
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); |
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if(variant == 'random-angles') { |
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var actions = { |
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'F': draw_forward(), |
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'-': draw_turn(-Math.PI/2.23+Math.random()), |
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'+': draw_turn(Math.PI/2.42+Math.random()) |
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}; |
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} else { |
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var actions = { |
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'F': draw_forward(), |
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'-': draw_turn(-Math.PI/2), |
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'+': draw_turn(Math.PI/2), |
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}; |
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} |
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var p = draw(r, actions); |
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if(variant == 'random-angles') { |
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p.scale(4); |
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} else { |
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p.scale(3); |
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} |
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p.translate(new Point(200, 200)); |
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p.strokeWidth = 1; |
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p.strokeColor = '#ff00ff'; |
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} |
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/************************************************ |
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* Sierpinski Triangle |
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************************************************/ |
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function sierpinski2(num_defects) { |
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project.clear(); |
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if(typeof num_defects == 'undefined') { num_defects = 0 }; |
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var r = generate( |
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'IA'.split(''), |
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[ |
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['A'.split(''), 'B-A-B'.split('')], |
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['B'.split(''), 'A+B+A'.split('')] |
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], |
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8 |
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); |
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for(var i=0; i<num_defects; i++) { |
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r[Math.floor(Math.random()*r.length)] = '*'; |
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} |
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var actions = { |
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'A': draw_forward(), |
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'B': draw_forward(), |
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'I': draw_angle_init(Math.PI/3), |
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'-': draw_angle_turn(-1), |
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'+': draw_angle_turn(1), |
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'*': draw_angle_add(0.001), |
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}; |
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var p = draw(r, actions); |
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p.scale(1.5); |
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p.translate(new Point(150, 150)); |
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p.strokeWidth = 1; |
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p.strokeColor = '#ff00ff'; |
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} |
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/************************************************ |
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* Sierpinski Triangle |
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************************************************/ |
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function sierpinski() { |
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project.clear(); |
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var r = generate( |
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'IF-G-G'.split(''), |
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[ |
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['F'.split(''), 'F-G+F+G-F'.split('')], |
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['G'.split(''), 'GG'.split('')] |
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], |
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6 |
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); |
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var p = draw( |
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r, |
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{ |
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'F': draw_forward(), |
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'G': draw_forward(), |
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'I': draw_angle_init(2*Math.PI/3), |
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'-': draw_angle_turn(-1), |
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'+': draw_angle_turn(1), |
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} |
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); |
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p.scale(5); |
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p.translate(new Point(200, 200)); |
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p.strokeWidth = 1; |
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p.strokeColor = '#ff00ff'; |
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} |
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/************************************************ |
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* |
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************************************************/ |
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globals.dragon_curve = dragon_curve; |
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globals.sierpinski2 = sierpinski2; |
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globals.sierpinski = sierpinski; |
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globals.get_svg = function() { |
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return project.exportSVG({asString: true}); |
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} |
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</script> |
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<script type="text/javascript"> |
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//document.addEventListener('DOMContentLoaded', function() { |
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window.globals = {} |
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window.onload = function() { |
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/* |
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draw(); |
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document.getElementById('redraw').addEventListener('click', function() { |
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draw(); |
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}); |
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*/ |
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paper.install(window); |
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console.log(window.globals); |
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document.getElementById('download-svg').addEventListener('click', function() { |
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var svgdata = 'data:image/svg+xml;utf8,' + encodeURIComponent(window.globals.get_svg()); |
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var a = document.createElement('a'); |
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a.download = 'export.svg'; |
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a.href = svgdata; |
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document.body.appendChild(a); |
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a.click(); |
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}); |
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document.getElementById('dragon-curve').addEventListener('click', function() { |
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window.globals.dragon_curve(); |
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}); |
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document.getElementById('dragon-curve-random-angles').addEventListener('click', function() { |
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window.globals.dragon_curve('random-angles'); |
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}); |
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document.getElementById('sierpinski2').addEventListener('click', function() { |
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window.globals.sierpinski2(0); |
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}); |
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document.getElementById('sierpinski2-defects').addEventListener('click', function() { |
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window.globals.sierpinski2(10); |
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}); |
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document.getElementById('sierpinski').addEventListener('click', function() { |
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window.globals.sierpinski(); |
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}); |
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} |
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</script> |
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</head> |
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<body> |
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<button id="download-svg">download svg</button> |
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<button id="dragon-curve">dragon curve</button> |
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<button id="dragon-curve-random-angles">dragon curve (random angles)</button> |
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<button id="sierpinski2">sierpinski2</button> |
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<button id="sierpinski2-defects">sierpinski2 (random defects)</button> |
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<button id="sierpinski">sierpinski</button> |
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<hr> |
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<canvas id="canvas" style="width: 500px; height: 500px;" resize></canvas> |
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</body> |
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</html> |
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