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deploy: leporello-js/app@a6e3f1b36f

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dmitry-vsl
2025-05-30 19:59:02 +00:00
parent 1a30311de4
commit 75b1c5e942
30 changed files with 959 additions and 832 deletions
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19
docs/examples/fractal_tree/fractal_tree.js
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@@ -2,30 +2,29 @@
// Author: Sarah Bricault
// Canvas setup
const canvas = document.createElement('canvas')
const canvas = document.createElement("canvas")
canvas.width = 700
canvas.height = 700
document.body.appendChild(canvas)
const ctx = canvas.getContext('2d')
const ctx = canvas.getContext("2d")
ctx.translate(canvas.width / 2, canvas.height)
// Draw a tree
fractalTreeBasic({totalIterations: 10, basicLength: 10, rotate: 25})
function fractalTreeBasic({totalIterations, basicLength, rotate}) {
fractalTreeBasic({ totalIterations: 10, basicLength: 10, rotate: 25 })
function fractalTreeBasic({ totalIterations, basicLength, rotate }) {
// Draw the tree trunk
const trunkLength = basicLength * 2 * Math.pow(1.2, totalIterations + 1)
const width = Math.pow(totalIterations, 0.6)
ctx.beginPath()
ctx.moveTo(0, 0)
ctx.lineTo(0, - trunkLength)
ctx.lineTo(0, -trunkLength)
ctx.lineWidth = width
ctx.strokeStyle = 'black'
ctx.strokeStyle = "black"
ctx.stroke()
drawBranch(90, [0, - trunkLength], totalIterations + 1)
drawBranch(90, [0, -trunkLength], totalIterations + 1)
function drawBranch(angle, startPoint, iterations) {
const len = basicLength * Math.pow(1.2, iterations)
@@ -34,7 +33,7 @@ function fractalTreeBasic({totalIterations, basicLength, rotate}) {
const red = Math.floor(255 - (iterations / totalIterations) * 255)
const green = 0
const blue = Math.floor( 255 - (iterations / totalIterations) * 255)
const blue = Math.floor(255 - (iterations / totalIterations) * 255)
const color = `rgb(${red}, ${green}, ${blue})`
const x1 = startPoint[0]
@@ -43,7 +42,7 @@ function fractalTreeBasic({totalIterations, basicLength, rotate}) {
const y2 = y1 - len * Math.sin((angle * Math.PI) / 180)
const x2 = x1 + len * Math.cos((angle * Math.PI) / 180)
console.log('draw branch', x1, y1, x2, y2)
console.log("draw branch", x1, y1, x2, y2)
ctx.beginPath()
ctx.moveTo(x1, y1)