Patchwork tile groups

Square tile divided by a diagonal line into two triangles, colored in contrasting values. The single tile shape placed in 4 rotations produces diagonal stripes, chevrons, or labyrinthine stripe patterns when tiled randomly. This is the foundational Truchet tile described by Sébastien Truchet in his 1704 paper.

Quarter-circle arc connecting the midpoints of two adjacent sides of the square. The 4 rotations place the arc in each of the 4 corner positions. When tiled randomly these produce the iconic flowing, organic labyrinthine curves — the curved form most commonly associated with 'Truchet tiling' today. This is a generic curved Truchet variant, not the work of a specific named designer.

Half-circle arc anchored at the midpoint of one side, bulging toward the center. 4 rotations cover all four sides. Produces wave and scallop patterns when tiled. Patchwork treats this as a modular arc family, not as a documented tile designed by Truchet or Smith.

Two half-circle arcs on opposite sides of the tile, creating S-shapes and Z-shapes. Only 2 distinct tiles needed (horizontal and vertical orientations). When mixed, produces flowing S-curve meander patterns. This is cataloged as a Patchwork arc connector family rather than a direct Truchet or Smith source tile.

Right-angle (L-shaped) line connecting the midpoints of two adjacent sides, passing through the corner of the tile. It behaves like a rectilinear connector with sharp 90° bends and 4 rotations, but Patchwork does not attribute this glyph group to Smith.

Large arc spanning the full width of one side of the tile, creating a tall arch shape. 4 rotations. When combined, produces interlocking arch and vault patterns.

Rounded corner fills in small and large variants. Their rotations place the filled corner in each quadrant, making them useful as complements to arc and corner patterns. They are Patchwork font glyphs, not documented Smith tiles.

Parallel double-line paths through the tile: either straight through (horizontal or vertical) or turning at a corner. Creates connected road network and maze patterns; each tile represents a local path segment.

Curved version of the roadway tiles: parallel double-line paths with smooth curved corners instead of sharp bends. Same topological family as roadway tiles, producing organic-looking connected networks.

Blank BIT BLOCKS tile used by Patchwork to clear cells on the canvas.

Decorative filled figures with interior cutouts, useful for dense ornament and stamped motifs.

Paired dot tiles aligned to opposite diagonals, extending the diagonal Truchet vocabulary with point marks.

Two mirrored triangular pyramid glyphs for alternating directional fills.

Corner-weighted diagonal tiles that bridge angular Truchet diagonals and filled corner motifs.

Directional arrow-like blocks for creating flow, pointers, and repeated compass patterns.

BIT BLOCKS glyph group available in Patchwork and cataloged from config.tsx.

Squared C-shaped blocks in four rotations, suitable for stepped enclosures and squared ring fragments.

Straight line segments along tile edges, useful for constructing rectilinear paths and borders.

BIT BLOCKS glyphs available in Patchwork that do not yet have a named semantic group in config.tsx.

Filled square-quarter tiles that act as rectilinear complements to rounded corner fills.

Half-ring arc segments that can be combined into circular bands and chain-like patterns.

Perforated wedge-like blocks with circular cutouts, designed for playful texture and repeated ornament.

Corner dot-pair tiles in four rotations for dotted paths, counters, and modular accents.

Assorted BIT BLOCKS glyphs that work as standalone marks or decorative connectors.

T-junction bridge tiles for building branching rectilinear networks.

U-shaped connector tiles in four orientations, useful for looped and nested patterns.

Arch tiles with a central dot accent, combining vault-like curves with point markers.

Corner curve tiles with contrasting filled regions for bold curved-corner compositions.

Punctuation codepoint glyphs from BIT BLOCKS that render as abstract block marks in Patchwork.

Numeric codepoint glyphs from BIT BLOCKS used as geometric block shapes rather than text.

Circular blocks with interior holes for ring motifs and repeated circular accents.

Angular tetromino-like arrow tiles that point along diagonal directions.

K-shaped branching glyphs in four rotations for angular joins and broken-grid rhythm.

Large pointer shapes that create strong directional movement across the grid.

Letter codepoint glyphs from BIT BLOCKS that behave as abstract modular block shapes.

Triangular pyramid blocks for directional fills, stepped peaks, and repeated zigzags.

Soft rounded cloud-like blocks in four variants for organic decorative texture.

Scattered small-mark glyphs for noisy texture, stippling, and celebratory fills.

Crossing and X-like blocks in multiple codepoints for intersections and high-contrast accents.

Heavy line glyphs for strong dividers, bars, and dense rectilinear pattern work.

BIT BLOCKS glyph group available in Patchwork and cataloged from config.tsx.

BIT BLOCKS glyph group available in Patchwork and cataloged from config.tsx.

BIT BLOCKS glyph group available in Patchwork and cataloged from config.tsx.

Thin-weight Smith (1987) quarter-circle arc tiles from U+E000-U+E001. Each tile carries two quarter-circle arcs at opposite corners, covering all four edge midpoints and producing continuous labyrinthine curves.

Thin-weight Smith straight double-band variant from U+E002-U+E003. Each tile connects all four edge midpoints with paired diagonal bands, mirroring the routing of the Smith arc tiles.

Thin-weight Smith single corner-to-corner diagonal tiles from U+E004-U+E005. This is the classic two-orientation diagonal Truchet labyrinth form in the supplementary Smith font.

Thick-weight Smith (1987) quarter-circle arc tiles from U+E010-U+E011. They use a 175-unit stroke for visual cohesion with BIT BLOCKS while preserving the two-arc Smith topology.

Thick-weight Smith straight double-band variant from U+E012-U+E013, using the heavier 175-unit stroke while keeping the same paired diagonal connectivity.

Thick-weight Smith single corner-to-corner diagonal tiles from U+E014-U+E015, matching the heavier BIT BLOCKS stroke while retaining the two diagonal orientations.