Contour Lines - Free Online | FunToolX
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About this tool
Contour Lines is a free online visual effect. Animated topographic contour lines over an evolving noise field. Interactive eye-candy rendered live on your screen. It runs entirely in your browser — no download or sign-up needed.
When you open the page, a contour terrain map will be displayed, Berlin noise will be used to generate a height field, and then contour lines will be extracted and drawn. The terrain changes slowly and the contours move with it. You can adjust contour spacing, color scheme, noise parameters, etc.
The whole process is purely front-end animation, generating a height field based on Canvas 'Berlin noise, and using the marching squares algorithm to extract contour lines.
It is suitable for geographical science, terrain visualization, or purely appreciating the topological beauty of contours. The implementation principle is Berlin noise and the marching squares algorithm.
Contour is a visual effect that generates contour terrain maps based on noise functions, and is rendered in real time based on Canvas.