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1.2.0 release (#25)
* Release v1.2.0: Enhanced tooltips with links count, tabs in Unlinked panel Added: - Node tooltips now display "Links out" and "Links in" counts with color coding - New "Links count" tab in the Unlinked Modules panel - Configurable threshold filter to find nodes by connection count - Checkboxes to filter by "links in" or "links out" criteria Changed: - Unlinked panel now uses tabs interface (Unlinked / Links count) * Refactor: Extract HTML/CSS/JS templates to separate files - Move HTML structure to templates/index.html - Move CSS styles to templates/styles.css - Move JavaScript code to templates/main.js - Update vizualyzer.py to read and combine template files - Reduce vizualyzer.py from ~2000 to ~340 lines - Fix Connections panel positioning (now draggable like other panels) - Update CHANGELOG.md with refactoring details * Add display filters for nodes and links by type - Show/hide nodes: Modules, Classes, Functions, External - Show/hide links: Module→Module, Module→Entity, Dependencies - Filters available in the Display panel - Links are hidden when connected nodes are filtered out - Update CHANGELOG with display filters feature * Move Legend panel to the right of Controls panel * Add CSV export option for graph data * Add integration tests for CSV export functionality * Add CSV export documentation to README * Update README with new feature screenshots
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‎CHANGELOG.md‎

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The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
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and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
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## [1.2.0] - 2026-01-18
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### Added
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**Enhanced Tooltips**
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- Node tooltips now display "Links out" and "Links in" counts
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- Color-coded: orange for outgoing links, green for incoming links
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- Helps quickly understand node connectivity
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**Links Count Panel**
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- New "Links count" tab in the Unlinked Modules panel
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- Configurable threshold filter (default: 1) to find nodes by connection count
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- Checkboxes to filter by "links in" or "links out" criteria
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- Click on any item to navigate and zoom to it on the graph
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- Useful for finding highly connected or isolated nodes
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**Display Filters**
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- Show/hide nodes by type: Modules, Classes, Functions, External
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- Show/hide links by type: Module→Module, Module→Entity, Dependencies
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- All filters available in the expanded Display panel
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**CSV Export**
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- New `--csv PATH` option to export graph data to CSV file
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- Columns: name, type (module/function/class/external), parent_module, full_path, links_out, links_in, lines
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- Example: `codegraph /path/to/code --csv output.csv`
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### Changed
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- Legend panel moved to the right of Controls panel (both at top-left area)
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- Renamed "Unlinked Modules" panel header, now uses tabs interface
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- "Unlinked" is now a tab showing modules with zero connections
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- "Links count" tab provides flexible filtering by connection count
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### Refactored
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**Template Extraction**
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- HTML, CSS, and JavaScript moved to separate files in `codegraph/templates/`
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- `templates/index.html` - HTML structure with placeholders
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- `templates/styles.css` - all CSS styles
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- `templates/main.js` - all JavaScript code
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- `vizualyzer.py` reduced from ~2000 to ~340 lines
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- Easier to maintain and edit frontend code separately
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## [1.1.0] - 2025-01-18
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### Added

‎README.md‎

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![Node Information](docs/img/node_information.png)
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**Tooltips** - Hover over any node to see details: type, parent module, full path, and connection count.
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**Tooltips** - Hover over any node to see details: type, parent module, full path, lines of code, and connection counts (links in/out).
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### Links Count
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![Links Count](docs/img/links_count.png)
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**Links Count Panel** - Find nodes by their connection count. Filter by "links in" or "links out" with configurable threshold.
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### Unlinked Modules
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![Unlinked Nodes](docs/img/listing_unlinked_nodes.png)
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**Unlinked Panel** - Shows modules with no connections. Click to navigate to them on the graph.
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### Massive Objects Detection
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![Massive Objects](docs/img/massive_objects_detection.png)
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**Massive Objects Panel** - Find large code entities by lines of code. Filter by type (modules, classes, functions) with configurable threshold.
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### Display Settings
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![Display Settings](docs/img/graph_display_settings.png)
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**Display Filters** - Show/hide nodes by type (Modules, Classes, Functions, External) and links by type (Module→Module, Module→Entity, Dependencies).
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### UI Tips
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![UI Tips](docs/img/tips_in_ui.png)
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| Option | Description |
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|--------|-------------|
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| `--output PATH` | Custom output path for HTML file (default: `./codegraph.html`) |
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| `--csv PATH` | Export graph data to CSV file |
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| `--matplotlib` | Use legacy matplotlib visualization instead of D3.js |
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| `-o, --object-only` | Print dependencies to console only, no visualization |
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### CSV Export
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Export graph data to CSV for analysis in spreadsheets or other tools:
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```console
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codegraph /path/to/code --csv output.csv
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```
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CSV columns:
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- `name` - Entity name
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- `type` - module / function / class / external
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- `parent_module` - Parent module (for functions/classes)
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- `full_path` - File path
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- `links_out` - Outgoing dependencies count
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- `links_in` - Incoming dependencies count
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- `lines` - Lines of code
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## Changelog
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See [CHANGELOG.md](CHANGELOG.md) for full version history.

‎codegraph/__init__.py‎

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__version__ = "1.1.0"
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__version__ = "1.2.0"

‎codegraph/main.py‎

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type=click.Path(),
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help="Output path for D3.js HTML file (default: ./codegraph.html)",
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)
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def cli(paths, object_only, file_path, distance, matplotlib, output):
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@click.option(
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"--csv",
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type=click.Path(),
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help="Export graph data to CSV file (specify output path)",
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)
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def cli(paths, object_only, file_path, distance, matplotlib, output, csv):
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"""
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Tool that creates a graph of code to show dependencies between code entities (methods, classes, etc.).
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CodeGraph does not execute code, it is based only on lex and syntax parsing.
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distance=distance,
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matplotlib=matplotlib,
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output=output,
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csv=csv,
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)
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main(args)
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click.echo(f" Distance {distance}: {', '.join(files)}")
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elif args.object_only:
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pprint.pprint(usage_graph)
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elif args.csv:
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import codegraph.vizualyzer as vz
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vz.export_to_csv(usage_graph, entity_metadata=entity_metadata, output_path=args.csv)
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else:
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import codegraph.vizualyzer as vz
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‎codegraph/templates/index.html‎

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<!DOCTYPE html>
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<html lang="en">
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<head>
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<meta charset="UTF-8">
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<meta name="viewport" content="width=device-width, initial-scale=1.0">
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<title>CodeGraph - Interactive Visualization</title>
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<script src="https://d3js.org/d3.v7.min.js"></script>
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<style>
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/* STYLES_PLACEHOLDER */
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</style>
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</head>
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<body>
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<div id="graph"></div>
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<div class="tooltip" id="tooltip"></div>
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<!-- Search box -->
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<div class="search-container">
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<div class="search-box">
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<input type="text" class="search-input" id="searchInput" placeholder="Search nodes... (Ctrl+F)" autocomplete="off">
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<button class="search-clear" id="searchClear">&times;</button>
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<div class="autocomplete-list" id="autocompleteList"></div>
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</div>
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</div>
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<!-- Highlight info banner -->
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<div class="highlight-info" id="highlightInfo">
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<span id="highlightText">Highlighting: </span>
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<button id="clearHighlight">Clear (Esc)</button>
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</div>
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<div class="panel controls" id="controls-panel">
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<div class="panel-header">
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<h4>Controls</h4>
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<button class="panel-toggle" title="Collapse">−</button>
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</div>
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<div class="panel-content">
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<p><kbd>Ctrl+F</kbd> Search nodes</p>
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<p><kbd>Scroll</kbd> Zoom in/out</p>
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<p><kbd>Drag</kbd> on background - Pan</p>
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<p><kbd>Drag</kbd> on node - Pin node position</p>
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<p><kbd>Click</kbd> module/entity - Collapse/Expand</p>
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<p><kbd>Double-click</kbd> - Unpin / Focus on node</p>
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<p><kbd>Esc</kbd> Clear search highlight</p>
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</div>
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</div>
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<div class="panel legend" id="legend-panel">
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<div class="panel-header">
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<h4>Legend</h4>
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<button class="panel-toggle" title="Collapse">−</button>
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</div>
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<div class="panel-content">
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<div class="legend-section">
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<h4>Nodes</h4>
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<div class="legend-item">
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<div class="legend-color legend-module"></div>
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<span>Module (.py file)</span>
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</div>
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<div class="legend-item">
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<div class="legend-color legend-entity"></div>
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<span>Entity (function/class)</span>
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</div>
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<div class="legend-item">
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<div class="legend-color legend-external"></div>
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<span>External dependency</span>
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</div>
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</div>
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<div class="legend-section">
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<h4>Links</h4>
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<div class="legend-item">
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<div class="legend-line legend-link-module"></div>
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<span>Module → Module</span>
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</div>
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<div class="legend-item">
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<div class="legend-line legend-link-entity" style="border-top: 2px dashed #009c2c; background: none; height: 0;"></div>
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<span>Module → Entity</span>
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</div>
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<div class="legend-item">
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<div class="legend-line legend-link-dep"></div>
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<span>Entity → Dependency</span>
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</div>
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</div>
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</div>
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</div>
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<div class="panel stats" id="stats">
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<div class="panel-header">
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<h4>Statistics</h4>
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<button class="panel-toggle" title="Collapse">−</button>
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</div>
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<div class="panel-content" id="stats-content"></div>
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</div>
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<div class="panel unlinked-modules" id="unlinked-modules">
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<div class="panel-header">
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<h4>Connections</h4>
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<button class="panel-toggle" title="Collapse">−</button>
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</div>
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<div class="panel-content">
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<div class="unlinked-tabs">
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<button class="unlinked-tab active" data-tab="unlinked-list">Unlinked <span class="count" id="unlinked-count"></span></button>
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<button class="unlinked-tab" data-tab="links-count-list">Links count <span class="count" id="links-count"></span></button>
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</div>
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<div id="unlinked-list" class="unlinked-tab-content active"></div>
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<div id="links-count-list" class="unlinked-tab-content">
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<div class="links-filter">
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<div class="filter-row">
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<label><input type="checkbox" id="links-in-check" checked> Links in</label>
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<label><input type="checkbox" id="links-out-check" checked> Links out</label>
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</div>
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<div class="filter-row">
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<span>More than:</span>
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<input type="number" id="links-threshold" value="5" min="0">
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</div>
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</div>
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<div id="links-count-content"></div>
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</div>
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</div>
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</div>
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<div class="panel massive-objects" id="massive-objects">
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<div class="panel-header">
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<h4>Massive Objects <span class="count" id="massive-count"></span></h4>
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<button class="panel-toggle" title="Collapse">−</button>
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</div>
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<div class="panel-content">
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<div class="filters">
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<div class="filter-row">
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<label><input type="checkbox" id="filter-modules" checked> Modules</label>
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<label><input type="checkbox" id="filter-classes" checked> Classes</label>
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<label><input type="checkbox" id="filter-functions" checked> Functions</label>
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</div>
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<div class="filter-row">
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<span>Min lines:</span>
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<input type="number" id="massive-threshold" value="50" min="1">
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</div>
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</div>
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<ul id="massive-list"></ul>
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</div>
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</div>
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<div class="panel size-toggle" id="size-toggle-panel">
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<div class="panel-header">
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<h4>Display</h4>
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<button class="panel-toggle" title="Collapse">−</button>
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</div>
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<div class="panel-content">
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<label>
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<input type="checkbox" id="size-by-code" checked>
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Size by lines of code
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</label>
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<div class="display-section">
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<h5>Show nodes</h5>
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<label><input type="checkbox" id="show-modules" checked> Modules</label>
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<label><input type="checkbox" id="show-classes" checked> Classes</label>
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<label><input type="checkbox" id="show-functions" checked> Functions</label>
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<label><input type="checkbox" id="show-external" checked> External</label>
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</div>
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<div class="display-section">
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<h5>Show links</h5>
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<label><input type="checkbox" id="show-link-module" checked> Module → Module</label>
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<label><input type="checkbox" id="show-link-entity" checked> Module → Entity</label>
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<label><input type="checkbox" id="show-link-dependency" checked> Dependencies</label>
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</div>
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</div>
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</div>
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<script>
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const graphData = /* GRAPH_DATA_PLACEHOLDER */;
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/* SCRIPT_PLACEHOLDER */
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</script>
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</body>
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</html>

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