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basic_rotate02 | experiments for generating pattern like tokyo2020
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| license: gpl-3.0 |
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| <html> | |
| <head> | |
| <meta charset="UTF-8"> | |
| <title>basic_rotate02 | experiments for generating pattern like tokyo2020</title> | |
| <script language="javascript" type="text/javascript" src="https://cdnjs.cloudflare.com/ajax/libs/p5.js/0.4.24/p5.min.js"></script> | |
| <script language="javascript" type="text/javascript" src="sketch.js"></script> | |
| <style> body {padding: 0; margin: 0;} </style> | |
| </head> | |
| <body> | |
| </body> | |
| </html> |
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| var radius = 70; | |
| var rectA = new p5.Vector(radius*Math.cos(15*Math.PI/180),radius*Math.sin(15*Math.PI/180)); | |
| var rectB = new p5.Vector(radius*Math.cos(30*Math.PI/180),radius*Math.sin(30*Math.PI/180)); | |
| var rectC = new p5.Vector(radius*Math.cos(45*Math.PI/180),radius*Math.sin(45*Math.PI/180)); | |
| function setup() { | |
| createCanvas(900,900); | |
| fill(30); | |
| noStroke(); | |
| noLoop(); | |
| } | |
| function draw() { | |
| translate(width/2 - rectA.x/2,50); | |
| for(var i =1; i<=12; i++){ | |
| drawRectOut(rectA); | |
| translate(rectA.x,0); | |
| rotate(15.0*PI/180); | |
| drawRectIn(rectB); | |
| translate(rectB.x,0); | |
| if(i!=12)rotate(15.0*PI/180); | |
| } | |
| translate(0,rectB.y); | |
| rotate(15.0*PI/180); | |
| translate(0,rectC.y); | |
| for(var i =1; i<=12; i++){ | |
| drawRectOut(rectC); | |
| translate(rectC.x,0); | |
| rotate(15.0*PI/180); | |
| drawRectIn(swap(rectB)); | |
| translate(swap(rectB).x,0); | |
| if(i!=12)rotate(15.0*PI/180); | |
| } | |
| translate(0,swap(rectB).y); | |
| rotate(15.0*PI/180); | |
| translate(0,swap(rectA).y); | |
| for(var i =1; i<=12; i++){ | |
| drawRectOut(swap(rectA)); | |
| translate(swap(rectA).x,0); | |
| rotate(30.0*PI/180); | |
| } | |
| } | |
| function drawRectIn(vec){ | |
| beginShape(); | |
| vertex(0,0); | |
| vertex(vec.x,0); | |
| vertex(vec.x,vec.y); | |
| vertex(0,vec.y); | |
| endShape(CLOSE); | |
| } | |
| function drawRectOut(vec){ | |
| beginShape(); | |
| vertex(0,0); | |
| vertex(vec.x,0); | |
| vertex(vec.x,-vec.y); | |
| vertex(0,-vec.y); | |
| endShape(CLOSE); | |
| } | |
| function swap(vec){ | |
| var swappedVec = new p5.Vector(vec.y,vec.x); | |
| return swappedVec; | |
| } |
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