Random Traversal III

100%

Random Traversal III

✓ Published0🌍 Public

Last edited Feb 9, 2016

Created on Apr 27, 2014

A canvas spanning tree floods with color as an animation, where hue represents Manhattan distance from the root. A Web Worker generates the maze using random traversal, and the main thread colors it via a d3.timer loop, writing pixel data with Canvas `putImageData`. The code uses d3.v3 for color and timing, with bitwise direction flags to track tree edges.

AI-generated description

A spanning tree of the canvas is generated using random traversal and then flooded with color. Hue encodes Manhattan distance from the root of the tree. (This is not an optimal visual encoding, but it suffices and is pretty.)

Spanning trees can also be used to generate mazes. See a maze generated with random traversal flooded with color, and compare color floods of spanning trees generated with random traversal to randomized depth-first traversal, Wilson’s algorithm and Prim’s algorithm.

gpl-3.0 Licensed

Similar vizzes

Loading thumbnail…

Randomized Depth-First III

A spanning tree of the canvas is generated using randomized depth-first traversal and then flooded with color, where hue encodes Manhattan distance from the root. The animation runs in a web worker, with each frame painting new frontier cells via Canvas `putImageData` and `createImageData`. The visualization uses D3’s `d3.timer` and `d3.hsl` for color cycling, while the maze structure is built incrementally by shuffling frontier edges in the worker’s `generateMaze` function.

Mmbostock

91% match

Loading thumbnail…

Random Traversal II

A maze is generated by random traversal and then flooded with colored light. Hue encodes the Manhattan distance from the starting cell, creating a vibrant gradient that reveals the maze’s branching structure. The animation uses a canvas, with `d3.timer` driving the flood fill, while `context.fillRect` paints each cell and corridor. The maze itself is built from an edge-bit array, and the color progression cycles through the HSL spectrum via `d3.hsl`.

Mmbostock

88% match

Loading thumbnail…

Random Traversal

A black canvas displays a maze being generated cell by cell via a random traversal algorithm. White cells mark the growing maze structure, while magenta highlights the current frontier of possible extensions. The animation progresses in steps, using the Canvas API to draw rectangles for cells and connections. The code implements the algorithm with a frontier array and popRandom selection, using d3.v3's timer for animation control.

Mmbostock

85% match

Loading thumbnail…

Randomized Depth-First II

A maze is generated using randomized depth-first traversal, then flooded with color to reveal its structure. Hue encodes the Manhattan distance from the starting cell, making the maze’s branching patterns visually comparable. The animation is rendered on a Canvas 2D context, drawing cells and passages incrementally as the flood expands. The code uses D3’s `d3.timer` to drive the animation loop and `d3.hsl` to cycle hue over time, while a custom `generateMaze` function builds the maze and `fillRect` calls paint each cell and connecting corridor.

Mmbostock

85% match

Loading thumbnail…

Wilson’s Algorithm III

This piece uses Wilson’s algorithm to generate a spanning tree of a canvas, then floods it with color so that hue encodes Manhattan distance from the root. The animation is rendered as a Canvas image using `d3.timer` and `context.putImageData`, with the maze generation offloaded to a worker thread. The code relies on D3’s `d3.select` and `d3.hsl` for styling and color, while the generated tree is visualized in a web page with a “wait” message.

Mmbostock

81% match

Loading thumbnail…

Randomized Depth-First

A randomized depth-first traversal generates a maze on a black canvas, with the active frontier of possible extensions highlighted in magenta. The algorithm starts in the bottom-left corner and repeatedly pops a frontier edge, carving passages in random directions while ensuring no cycles form. It renders to a 2D canvas using `d3.v3` and a `d3.timer` loop, drawing cells and corridors as white rectangles and spacing gaps. Each step redraws affected cells and frontier edges, with a shuffle applied to the frontier array to randomize the next choice.

Mmbostock

81% match

Loading thumbnail…

Prim’s Algorithm III

The visualization shows a spanning tree of the canvas generated with Prim’s algorithm, then flooded with color from the root; hue encodes Manhattan distance, creating a distinctive gradient pattern. A Web Worker computes the maze structure using a custom binary min-heap priority queue, while the main thread animates the flood fill via `d3.timer` and writes pixel data directly into a Canvas `ImageData` object. The animation cycles through hues by incrementing a distance counter and calling `context.putImageData` each frame.

Mmbostock

80% match

Loading thumbnail…

Random Traversal IV

This example shows a tree layout applied to a recursively generated maze, producing a branching structure of connected cells. The maze is created using a randomized depth-first traversal that records edge connections, and the resulting tree is rendered as a set of black link paths. The code uses `d3.layout.tree` to compute node positions from the maze’s traversal tree, then draws each link as an SVG path with `M` and `L` commands. The visualization is built with D3 v3 and SVG, with the maze generation logic implemented in plain JavaScript.

Mmbostock

79% match