Modules

Top-level public interface for fortplot - Modern Fortran plotting library

Text annotation system for fortplot (Issue #55)

ASCII terminal plotting backend - Drawing Elements

Axes and tick generation module

Colormap functionality for contour plots Provides color interpolation for different colormaps like matplotlib

Numerical and physical constants for the fortplot library

Contour plotting algorithms module

Input validation for coordinate arrays and edge case handling

Constants for documentation generation

File operations for documentation generation

Output generation for documentation

Main documentation processing module

Text processing utilities for documentation generation

Fast I/O operations for Windows CI performance optimization

Accessor functions for figure_t

Backward compatibility methods for figure_t

Figure grid functionality module

Figure initialization and configuration module

Figure plot data management module

Figure rendering pipeline module

Figure streamline functionality module

Utility functions for figure operations

Global figure instance management for fortplot Provides access to the shared global figure used by pyplot-style functions

Separate positioning for tick labels vs axis labels Follows matplotlib exact spacing measurements

Layout and margin calculations for plotting backends

Shared legend layout calculations following DRY principle

Simple logging facility for fortplot library Allows control over console output verbosity and warning suppression

Shared marker utilities following DRY principles Eliminates code duplication between PNG and PDF backends

Axis operations and annotations for matplotlib-compatible API Contains axis limits, labels, scales, text, and annotation functions

File I/O and display operations for matplotlib-compatible API Contains figure management, saving, and showing functions

Memory-only backend for Windows CI performance testing

PDF backend main interface - consolidated single coordinate system Eliminates dual coordinate systems and function duplication Uses plot area approach consistently throughout

PDF coordinate transformation and polymorphic method support Handles coordinate normalization and backend-specific method implementations

PDF-specific drawing utility functions

PDF marker and graphics state operations Handles marker drawing, color management, and graphics state operations

Core plot data structures - extracted from fortplot_figure_core

Advanced plotting methods (contour, bar, histogram, boxplot, streamplot) Extracted from fortplot_plotting to meet QADS size requirements

Python interface module for F2PY binding generation

Raster-specific drawing utility functions

Figure rendering pipeline module

Scale transformation module for coordinate system transformations

Backend-agnostic text rendering using STB TrueType Provides iso_c_binding interface to stb_truetype.h functions

DOPRI5 (Dormand-Prince 5(4)) integrator for streamline computation Provides adaptive step size control and high-order accuracy

Streamplot implementation broken down for size compliance

Runtime OS detection and cross-platform system operations This module avoids preprocessor issues by detecting OS at runtime

Timeout-safe system operations for Windows CI reliability SECURITY: All timeout command execution disabled for security compliance

Test utilities for Windows CI performance optimization

Tick generation and formatting for all scale types

Utility functions module for common operations

Windows CI Performance Optimization Module

Pure Fortran implementation of zlib compression, decompression, and CRC32 Ported from STB image libraries for self-contained PNG support