Check if there are any generated neighbor quadrants for a tile at (x, y).

Height of the rectangle (y extent).

Height of the strip (y extent).

Serve the main index.html.

Serve the main index.html.

Serve the main index.html.

Main page showing nx×ny grid of tiles.

Main page showing nx×ny grid of tiles.

Initialize the SQLite database with the buildings table.

Check if the infill position is centered (not aligned to quadrant grid). A centered infill means the position is not at a quadrant boundary,

Whether the infill region was expanded to cover missing context.

True if width >= height.

Check if this model uses URL-based inference (local server or remote URL).

Check if the renderer is running.

Length of the strip (along progress direction).

Load the generation configuration.

Load a strip plan from a JSON file.

Suppress logging.

Return the smallest power of 2 >= n.

Return the smallest power of 2 >= n.

Quadrants auto-added to cover missing context.

Parse a coordinate string like '0,0' into a tuple (x, y).

Parse a coordinate string like '10,15' into (x, y) tuple.

Parse a coordinate string like '10,15' into (x, y) tuple.

Parse a coordinate string like '10,15' into (x, y) tuple.

Parse a coordinate string like '10,15' into (x, y) tuple.

Parse a quadrant coordinate string like "(0,1)" or "0,1" into a tuple. Args: coord_str: String in format "(x,y)" or "x,y" Returns: Tu

Parse a quadrant tuple string like "(0,1)" or "0,1" into a tuple. Args: s: String in format "(x,y)" or "x,y" Returns: Tuple of (x

High-level postprocessing function that matches the interface expected by export_dzi.py. Args: img: Input PIL Image pale

Quadrants originally selected by user.

Worker function for parallel base tile processing. Args: args: Tuple of (dst_x, dst_y, src_x, src_y, raw_data, palette_bytes,

Process a single queue item for a specific model in its own thread.

Process a single tile (wrapper for multiprocessing). Args: args: Tuple of (input_path, output_path, palette_path, pixel_scale, dither)

Worker function for parallel zoom level tile generation. Args: args: Tuple of (zx, zy, scale, base_tiles_subset, black_tile_bytes,

Get the current size of the render queue.

Background worker that processes the generation queue.

Background worker that processes the generation queue from the database. This worker supports parallel processing of different models - each model

Read rows from a CSV file. Args: filepath: Path to CSV file Returns: List of dicts, one per row

Get the endpoint, checking environment variable first if endpoint_env is set.

Right edge x coordinate.

Save the application configuration to app_config.json. Note: This does NOT save API keys - those should remain in environment variables.

Save or update a building record.

Serve static assets.

Serve static assets.

Serve static assets.

Serve images from the dataset directory.

This runs once when the container boots up.

Very thin vertical strip with right edge context.

Thin strip without context cannot be fully generated.

Very thin horizontal strip with bottom edge context.

Thin strip without context cannot be fully generated.

Smallest possible rectangle with 3-neighbor context.

1x1 rectangle without context cannot be generated.

Test that 1x2 bridges correctly connect two 2x2 tiles.

1x2 tiles should extend from a fully generated edge.

2x1 tiles should extend from a fully generated edge.

2x2 tiles should not touch other scheduled tiles (at placement time).

2x2 tiles should not touch pre-generated quadrants.

2x2 rectangle should be a single 2x2 tile.

3x3 rectangle - mix of tiles.

4x4 rectangle - should fit multiple 2x2 tiles.

1x1 cannot be placed with only 2 neighbors.

1x1 can be placed when 3 of 4 quadrants in a 2x2 block are generated.