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TALA is a diagram layout engine designed specifically for software architecture diagrams, TALA is a diagram layout engine designed specifically for software architecture diagrams,
though it works well in other domains too. though it works well in other domains too. TALA is closed-source. This repository is
primarily for installation instructions. You can also use this repository to report
TALA is closed-source. This repository is primarily for installation instructions. You can issues, ask questions, and request features.
also use this repository to report issues, ask questions, and request features.
To learn more about TALA, please visit To learn more about TALA, please visit
[https://terrastruct.com/tala](https://terrastruct.com/tala). Note that this is a paid [https://terrastruct.com/tala](https://terrastruct.com/tala).
layout engine, which requires a license for any commercial use. The license is purchasable
in that same link. TALA is free to evaluate, but without a license, will render with a
watermark.
To compare TALA with other layout engines, please visit To compare TALA with other layout engines, please visit
[https://text-to-diagram.com](https://text-to-diagram.com/?a=d2&layout_a=tala&b=d2&layout_b=dagre&example=chess). [https://text-to-diagram.com](https://text-to-diagram.com/?a=d2&layout_a=tala&b=d2&layout_b=dagre&example=chess).

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TALA 0.4.0 is a massive improvement in layout positions of a wide range of diagrams.
<img width="814" alt="Screenshot 2024-07-08 at 2 44 49PM" src="https://github.com/terrastruct/TALA/assets/3120367/a4d3ca21-a0bc-4771-9c82-ab2fc736a439" />
#### Improvements 🧹
- Unconnected nodes and subgraphs are packed more tightly together
- Containers of similar sizes with indirect connections are aligned better
- Some diagrams escape local minimas better
- Nodes connected on both sides are more equidistant to both
- Cluster edge labels prioritize not intersecting with other cluster edges
- Node labels reposition to avoid overlapping with icons
- Node icons reposition to avoid overlapping with fixed labels
- Multiple edges between nodes are now ordered (left-right and top-down) by the order they were declared
- Edge routes between grid cells avoid node labels
- Edge routes consider paths that go through "invisible" nodes and edges (e.g. zero opacity)
- When only one of `width` or `height` is specified for a container, nodes will full up better to reduce unused space
- Tree structures are built more symmetrically
- Containers with edges going into its children are pulled closer together to the other edge endpoint
- Clusters of nodes are oriented more reasonably to facilitate better routes
- Clusters routes more often converge on a single point in the middle to form the "fork" aesthetic
- Node labels are positioned in areas of more space
- Edge labels avoid fixed node icon positions
#### Bugfixes ⛑️
- Fixes extra warnings that appeared with an invalid token
- Fixes panic when edges were defined between actors in different sequence diagrams
- Fixes custom label positions and icon positions not working for nodes in tree structures
- Disallow edges with different styles (e.g. stroke colors) from sharing routes
- Some direct straight routes weren't being considered between two non-diagonal nodes