ARCOL: Aspect Ratio Constrained Orthogonal Layout

Fuente: arXiv
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Main Authors: Alsuwaykit, Zainab, Rajeh, Yousef, Kouyoumdjian, Alexandre, Kieffer, Steve, Engel, Dominik, Di Bartolomeo, Sara, Nöllenburg, Martin, Viola, Ivan
Format: Preprint
Published: 2026
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author Alsuwaykit, Zainab
Rajeh, Yousef
Kouyoumdjian, Alexandre
Kieffer, Steve
Engel, Dominik
Di Bartolomeo, Sara
Nöllenburg, Martin
Viola, Ivan
author_facet Alsuwaykit, Zainab
Rajeh, Yousef
Kouyoumdjian, Alexandre
Kieffer, Steve
Engel, Dominik
Di Bartolomeo, Sara
Nöllenburg, Martin
Viola, Ivan
contents Orthogonal graph layout algorithms aim to produce clear, compact, and readable network diagrams by arranging nodes and edges along horizontal and vertical lines, while minimizing bends and crossings. Most existing orthogonal layout methods focus primarily on quality criteria such as area usage, total edge length, and bend minimization. Explicitly controlling the global aspect ratio (AR) of the resulting layout is as of now unexplored. Existing orthogonal layout methods offer no control over the resulting AR and their rigid geometric constraints make adaptation of finished layouts difficult. With the increasing variety of aspect ratios encountered in daily life, from wide monitors to tall mobile devices or fixed-size interface panels, there is a clear need for aspect ratio control in orthogonal layout methods. To tackle this issue, we introduce Aspect Ratio-Constrained Orthogonal Layout (ARCOL). Building upon the Human-like Orthogonal Layout Algorithm (HOLA)~\cite{Kieffer2016}, we integrate aspect ratio at two different stages: (1) into the stress minimization phase, as a soft constraint, allowing the layout algorithm to gently guide node positions toward a specified target AR, while preserving visual clarity and topological faithfulness; and (2) into the tree reattachment phase, where we modify the cost function to favor placements that improve the AR. We evaluate our approach through quantitative evaluation and a user study, as well as expert interviews. Our evaluations show that ARCOL produces balanced and space efficient orthogonal layouts across diverse aspect ratios.
format Preprint
id arxiv_https___arxiv_org_abs_2603_29618
institution arXiv
publishDate 2026
record_format arxiv
spellingShingle ARCOL: Aspect Ratio Constrained Orthogonal Layout
Alsuwaykit, Zainab
Rajeh, Yousef
Kouyoumdjian, Alexandre
Kieffer, Steve
Engel, Dominik
Di Bartolomeo, Sara
Nöllenburg, Martin
Viola, Ivan
Graphics
Orthogonal graph layout algorithms aim to produce clear, compact, and readable network diagrams by arranging nodes and edges along horizontal and vertical lines, while minimizing bends and crossings. Most existing orthogonal layout methods focus primarily on quality criteria such as area usage, total edge length, and bend minimization. Explicitly controlling the global aspect ratio (AR) of the resulting layout is as of now unexplored. Existing orthogonal layout methods offer no control over the resulting AR and their rigid geometric constraints make adaptation of finished layouts difficult. With the increasing variety of aspect ratios encountered in daily life, from wide monitors to tall mobile devices or fixed-size interface panels, there is a clear need for aspect ratio control in orthogonal layout methods. To tackle this issue, we introduce Aspect Ratio-Constrained Orthogonal Layout (ARCOL). Building upon the Human-like Orthogonal Layout Algorithm (HOLA)~\cite{Kieffer2016}, we integrate aspect ratio at two different stages: (1) into the stress minimization phase, as a soft constraint, allowing the layout algorithm to gently guide node positions toward a specified target AR, while preserving visual clarity and topological faithfulness; and (2) into the tree reattachment phase, where we modify the cost function to favor placements that improve the AR. We evaluate our approach through quantitative evaluation and a user study, as well as expert interviews. Our evaluations show that ARCOL produces balanced and space efficient orthogonal layouts across diverse aspect ratios.
title ARCOL: Aspect Ratio Constrained Orthogonal Layout
topic Graphics
url https://arxiv.org/abs/2603.29618