Spatial Visibility of Domestic Kitchens in Iran: Isovist Area Data from 19 Case Studies

This dataset contains the results of the Visibility Graph Analysis (VGA) conducted as part of the study “The Closed Open Kitchens: Spatial and Visual Analysis of Iranian Kitchens Over the Last Century.” Specifically, it includes the isovist area graphs for 19 residential case studies in Tehran, spanning five historical periods (Qajar, Pahlavi 1, Pahlavi 2, Contemporary 1, and Contemporary 2). Each isovist graph visualises the kitchen’s visual field by representing the area visible from each point within the kitchen space. The analysis was performed using DepthmapX, with a regular grid of 20 cm spacing. Internal windows and doors were considered transparent, while external ones were treated as opaque, reflecting typical use of curtains in Iranian domestic settings. These graphs illustrate the extent of visual connectivity between the kitchen and adjacent spaces, providing insights into spatial isolation, visibility, and the evolution of kitchen integration within domestic layouts. The dataset supports the study’s findings on the changing visual and social role of kitchens in Iranian homes and enables further exploration of spatial visibility and its implications for domestic life.本数据集包含了作为研究《封闭开放式厨房：近一个世纪伊朗厨房的空间与视觉分析》（The Closed Open Kitchens: Spatial and Visual Analysis of Iranian Kitchens Over the Last Century）一部分的可见性图分析（Visibility Graph Analysis，VGA）结果。具体而言，本数据集涵盖了德黑兰19个住宅案例的视域面积图（isovist area graphs），这些案例跨越五个历史时期：卡扎尔王朝、巴列维一世时期、巴列维二世时期、当代1期以及当代2期。每张视域图均通过表征厨房空间内每一点的可见区域，可视化呈现厨房的视野范围。本次分析采用DepthmapX软件完成，网格间距设置为20厘米。研究将内部门窗视为通透构件，外部门窗则设为不透明，这一设置贴合伊朗家庭中窗帘的常规使用场景。这些视域图可展示厨房与相邻空间之间的视觉连通程度，有助于解析空间孤立性、视野范围以及家庭布局中厨房整合度的演变历程。本数据集既支撑了该研究关于伊朗家庭厨房视觉与社会角色变迁的结论，也为进一步探索空间视野及其对家庭生活的影响提供了支持。