Topo Contours

Install

Or by hand, in a Next.js project with shadcn set up. It writes components/pastetaste/topo-contours.tsx.

Install the pastetaste component "Topo Contours" (topo-contours) into this Next.js project and use it.

What it is: Animated topographic iso-lines traced with marching squares over drifting noise. One canvas, zero dependencies, pauses off-screen.

Before you place it, ask me (one short message, in my language; "skip" = sensible default): which page and section it goes in, my brand colour (hex), the text, labels or images it should show, and whether I want my logo or my own copy in the demo content. Then:

Steps:
1. If the project has no components.json, run: npx shadcn@latest init -y -d. Then run: npx shadcn@latest add https://pastetaste.com/r/topo-contours.json
   (it writes components/pastetaste/topo-contours.tsx; install any npm packages it reports).
2. Import it: import { TopoContours } from "@/components/pastetaste/topo-contours" (check the file for the exact named export).
3. Put it where it fits on the page I name, keep the rest of the page untouched, and pass props for my colours instead of editing the installed file.
4. It does not depend on Tailwind; colours come from CSS variables (--pt-*) or props.
5. It supports prefers-reduced-motion with a still state; do not remove it.

Props (all optional unless the type has no default):
- color: string = computed CSS color — Line colour; inherits `color` so tokens and currentColor work.
- levels: number = 14 — Number of iso-lines.
- spacing: number = 18 — Grid cell in px; smaller is smoother and more expensive.
- speed: number = 0.6 — Drift speed; 0 freezes the map.
- scale: number = 3 — Noise frequency across the canvas.
- opacity: number = 0.35 — Line opacity.
- lineWidth: number = 1 — Stroke width in px.
- seed: number = 3 — Same seed, same map.

Live preview: https://pastetaste.com/c/topo-contours
Then run the dev server, check it in the browser at desktop and mobile width, and tell me the page URL.

Props 8