Created
October 28, 2019 22:50
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| <!DOCTYPE html> | |
| <html> | |
| <head> | |
| <style> | |
| .dot { | |
| position: absolute; | |
| height: 10px; | |
| width: 10px; | |
| display: block; | |
| background: #000; | |
| border-radius: 10px; | |
| } | |
| .line { | |
| position: absolute; | |
| height: 1px; | |
| background: #000; | |
| transform-origin: top left; | |
| } | |
| .other { | |
| background: #ace !important; | |
| } | |
| #dot-5 { | |
| background: #eca !important; | |
| } | |
| #root { | |
| height: 100%; | |
| width: 100%; | |
| } | |
| </style> | |
| </head> | |
| <body> | |
| <div id="root"></div> | |
| <script type="text/javascript"> | |
| let root = document.getElementById("root"); | |
| function dot(id) { | |
| let rand = () => Math.abs(Math.random() * 500); | |
| let x = rand(); | |
| let y = rand(); | |
| console.log(`x: ${x} y: ${y}`); | |
| return `<div id="dot-${id}" class="dot ${id == 5 || id == 6 ? "other":""}" style="top: ${y}px; left: ${x}px"></div>`; | |
| } | |
| function line(a, b) { | |
| let x = Number(a.style.left.replace("px", "")) + 5; | |
| let y = Number(a.style.top.replace("px", "")) + 5; | |
| let x2 = Number(b.style.left.replace("px", "")) + 5; | |
| let y2 = Number(b.style.top.replace("px", "")) + 5; | |
| let width = Math.sqrt(((x2 - x) ** 2) + ((y2 - y) ** 2)); | |
| let theta = Math.atan( (y - y2) / (x - x2) ) ; | |
| if (x2 < x) { | |
| x = x2; | |
| y = y2; | |
| } | |
| return `<div class="line" style="top: ${y}px; left: ${x}px; width: ${width}px; transform: rotate(${theta}rad);"></div>`; | |
| } | |
| for (let i = 1 ; i <= 10 ; i++) { | |
| root.innerHTML += dot(i); | |
| } | |
| // let dotA = document.getElementById(`dot-5`); | |
| // let dotB = document.getElementById(`dot-6`); | |
| // | |
| // root.innerHTML += line(dotA, dotB); | |
| // // min span tree | |
| // let F = []; | |
| // let S = [ 'dot-1','dot-2','dot-3','dot-4','dot-5','dot-6','dot-7','dot-8','dot-9','dot-10' ]; | |
| // | |
| // while (S.length > 0) { | |
| // console.log("S: ", S); | |
| // console.log("F: ", F); | |
| // | |
| // let tmp = S.pop(); | |
| // let dot = document.getElementById(tmp); | |
| // for (let f in F) { | |
| // for (let ff in F[f]) { | |
| // if (F[f][ff] == tmp) { | |
| // continue; | |
| // } | |
| // } | |
| // } | |
| // // else push | |
| // F.push(tmp); | |
| // // combine | |
| // } | |
| for (let i = 1 ; i <= 5 ; i++) { | |
| let dotA = document.getElementById(`dot-${i}`); | |
| let dotB = document.getElementById(`dot-${11 - i}`); | |
| root.innerHTML += line(dotA, dotB); | |
| } | |
| // setInterval(() => { | |
| // root.innerHTML = ""; | |
| // | |
| // for (let i = 1 ; i <= 10 ; i++) { | |
| // root.innerHTML += dot(i); | |
| // } | |
| // | |
| // //console.log("as") | |
| // for (let i = 1 ; i <= 5 ; i++) { | |
| // let dotA = document.getElementById(`dot-${i}`); | |
| // let dotB = document.getElementById(`dot-${11 - i}`); | |
| // | |
| // let deg = Math.abs(Math.floor(Math.random() * 360) * ( Math.PI / 180)); | |
| // | |
| // dotA.style.left = (Number(dotA.style.left.replace("px", "")) * Math.sin(Math.floor(Math.random() * 360))) + "px"; | |
| // dotB.style.left = (Number(dotB.style.left.replace("px", "")) * Math.sin(Math.floor(Math.random() * 360))) + "px"; | |
| // dotA.style.top = (Number(dotA.style.top.replace("px", "")) * Math.cos(Math.floor(Math.random() * 360))) + "px"; | |
| // dotB.style.top = (Number(dotB.style.top.replace("px", "")) * Math.cos(Math.floor(Math.random() * 360))) + "px"; | |
| // } | |
| // | |
| // for (let i = 1 ; i <= 5 ; i++) { | |
| // let dotA = document.getElementById(`dot-${i}`); | |
| // let dotB = document.getElementById(`dot-${11 - i}`); | |
| // | |
| // root.innerHTML += line(dotA, dotB); | |
| // } | |
| // }, 1000); | |
| </script> | |
| </body> | |
| </html> |
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