Genuary Day 13

homegrown-svg/sketch/240113-Genuary2024_13.js

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+/**
+ * Genuary 2024, Day 10
+ * https://genuary.art/prompts
+ *
+ * """
+ * JAN. 10 (credit: greweb)
+ *
+ * Hexagonal.
+ * """
+ */
+import { renderSvg, map, vec2, randomSeed, createRng, Vector2, random, circle, ColorRgb, randomFromArray, rect, hypot, Grid, range, hsl, lineSegment, Rectangle, randomInt, PI, cos, sin, clamp, ColorSequence, shuffle, Polygon, rangeWithIndex, createOscNoise, Hexagon, TAU, path, polyline, Polyline, createOscCurl } from '@salamivg/core'
+
+const config = {
+  width: 100,
+  height: 100,
+  scale: 10,
+  loopCount: 1,
+}
+
+let seed = randomSeed()
+seed = 3831459812932491
+
+renderSvg(config, (svg) => {
+  svg.filenameMetadata = { seed }
+  const rng = createRng(seed)
+  const bg = ColorRgb.fromHex('#E9EFF2')
+  svg.setBackground(bg)
+
+  svg.numericPrecision = 3
+  const noiseFn = createOscCurl(seed)
+
+  const spectrum = new ColorSequence([
+    [0.1, ColorRgb.fromHex('#3C73A3')],
+    [0.3, ColorRgb.fromHex('#7FB4C9')],
+    [0.7, ColorRgb.fromHex('#8351AF')],
+    [0.9, ColorRgb.fromHex('#2A4593')]
+  ])
+
+  svg.fill = null
+  svg.stroke = ColorRgb.Black
+  svg.strokeWidth = 0.2
+
+
+  const nPoints = 1000
+  // this is clumsy but works for now
+  const points = new Array(nPoints).fill(0)
+    .map(() => Vector2.random(0, svg.width, 0, svg.height, rng))
+
+  const scale = random(0.03, 0.06, rng)
+  const visited = []
+  const padding = 0.55
+
+  for (const startPoint of points) {
+    let cursor = startPoint.jitter(0.3, rng)
+    const color = spectrum.at(random(0, 1, rng))
+
+    for (let i = 0; i < 100; i++) {
+      const vec = noiseFn(cursor.x * scale, cursor.y * scale)
+      const next = cursor.add(vec)
+      if (!nearAnyPoint(next, visited, padding)) {
+        svg.circle({ x: next.x, y: next.y, r: padding / 3, fill: color, stroke: color })
+        visited.push(next)
+      }
+      cursor = next
+    }
+  }
+
+  return () => {
+    seed = randomSeed()
+  }
+})
+
+function nearAnyPoint(point, others, padding = 0.1) {
+  for (const other of others) {
+    if (point.distanceTo(other) < padding) {
+      return true
+    }
+  }
+  return false
+}