Simulating the Evolution of Ancient Fortified Cities

Mas, Albert; Martín, Iván; Patow, Gustavo

doi:10.1111/cgf.13897

Cited by 4 publications

(3 citation statements)

References 50 publications

(89 reference statements)

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“…Mas et al. [MMP20] generate cities based on defensive walls from different time periods by generating walls that contain the movement of the agents and then generate streets within those constraints. Wickramasuriya et al.…”

Section: Existing Procedural Modelling Methodsmentioning

confidence: 99%

“…Song and Whitehead [SW19] simulate crowds on streets by using parameters of connections between locations to generate streets. Mas et al [MMP20] generate cities based on defensive walls from different time periods by generating walls that contain the movement of the agents and then generate streets within those constraints. Wickramasuriya et al [WCP*13] divide parcels between agents, allowing agents to divide a parcel or transfer it to another agent.…”

Section: Figure 17: An Overview Of the Approach Proposed In [Fyy*16] ...mentioning

confidence: 99%

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A Survey of Procedural Modelling Methods for Layout Generation of Virtual Scenes

Cogo,

Krupalija,

Prazina

et al. 2023

Computer Graphics Forum

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As virtual worlds continue to rise in popularity, so do the expectations of users for the content of virtual scenes. Virtual worlds must be large in scope and offer enough freedom of movement to keep the audience occupied at all times. For content creators, it is difficult to keep up by manually producing the surrounding content. Therefore, the application of procedural modelling techniques is required. Virtual worlds often mimic the real world, which is composed of organized and connected outdoor and indoor layouts. It is expected that all content is present on the virtual scene and that a user can navigate streets, enter buildings, and interact with furniture within a single virtual world. While there are many procedural methods for generating different layout types, they mostly focus only on one layout type, whereas complete scene generation is greatly underrepresented. This paper aims to identify the coverage of layout types by different methods because similar issues exist for the generation of content of different layout types. When creating a new method for layout generation, it is important to know if the results of existing methods can be appended to other methods. This paper presents a survey of existing procedural modelling methods, which were organized into five categories based on the core approach: pure subdivision, grammar‐based, data‐driven, optimization, and simulation. Information about the covered layout types, the possibility of user interaction during the generation process, and the input and output shape types of the generated content is provided for each surveyed method. The input and output shape types of the generated content can be useful to identify which methods can continue the generation by using the output of other methods as their input. It was concluded that all surveyed methods work for only a few different layout types simultaneously. Moreover, only 35% of the surveyed methods offer interaction with the user after completing the initial process of space generation. Most existing approaches do not perform transformations of shape types. A significant number of methods use the irregular shape type as input and generate the same shape type as the output, which is sufficient for coverage of all layout types when generating a complete virtual world.

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Section: Existing Procedural Modelling Methodsmentioning

confidence: 99%

Section: Figure 17: An Overview Of the Approach Proposed In [Fyy*16] ...mentioning

confidence: 99%

A Survey of Procedural Modelling Methods for Layout Generation of Virtual Scenes

Cogo,

Krupalija,

Prazina

et al. 2023

Computer Graphics Forum

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“…Defensive walls are structures built over the centuries around urban centers, castles, fortresses, or military sites, generally for strategic defensive purposes (Keeley et al, 2007;Mas et al, 2020). In particular, there are more than 390 walled cities in Italy (Fig.…”

Section: Introductionmentioning

confidence: 99%

Proposal for an expeditious seismic vulnerability evaluation of the Italian medieval defensive walls

Cima,

Grande,

Lirer

2024

Preprint

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Medieval defensive walls are a distinctive feature of Italian cultural heritage. These structures testify the origins of historical centres and, in some cases, the consequences of the events occurred over time. The typical configuration of medieval defensive walls, generally characterized by high slenderness ratios, out-of-plumb, the absence od deep and adequate foundations, made these elements particularly vulnerable toward seismic actions. This study focused on the assessment of the seismic safety of Italian medieval defensive walls toward out-of-plane failure mechanisms induced by seismic actions. To this end, a simple approach based on the use of generalized dimensionless capacity curves is presented. These curves, derived by the Authors from a calibration process involving a set of selected real cases, allows for a rapid preliminary seismic assessment of masonry walls particularly useful for getting an initial idea of the condition of the walls with respect to seismic actions also considering the presence of pre-existing out-of-plumb configurations. The proposed approach has been applied in the paper to the real case study of medieval walls of Cittadella, a town in northern Italy, considering the pre-existing out-of-plumb configuration. The obtained results have shown the vulnerability of these walls in case of occurrence of masonry disaggregation and, consequently, the importance of performing specific surveys finalized to investigate this phenomenon. The application of the proposed approach has clearly shown its feasibility and usefulness for the seismic evaluation. Moreover, the comparison with the corresponding results obtained by using the actual capacity curves, rather than the generalized ones, has underlined its good level of reliability.

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Hierarchical Bayesian Network Modeling and Layout of Huizhou Traditional Villages in Geographic Environment

Zheng¹,

Li²,

Wang³

et al. 2022

Advances in Computer Graphics

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Simulating the Evolution of Ancient Fortified Cities

Cited by 4 publications

References 50 publications

A Survey of Procedural Modelling Methods for Layout Generation of Virtual Scenes

A Survey of Procedural Modelling Methods for Layout Generation of Virtual Scenes

Proposal for an expeditious seismic vulnerability evaluation of the Italian medieval defensive walls

Hierarchical Bayesian Network Modeling and Layout of Huizhou Traditional Villages in Geographic Environment

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