A Graphical Generalization of Localized Morphological Discontinuities on Medium-Scale State Topographic Maps

Staněk, Karel; Šilhák, Petr; Ryglová, Aneta

doi:10.1007/s41651-022-00112-2

Cited by 3 publications

(2 citation statements)

References 19 publications

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“…If the parameter Num p takes a larger value, it will increase the computational cost of the algorithm and reduce the computational efficiency. Wilson, Ware, and Ware [31] used heuristic experiments to determine that there is a certain linear proportional relationship between the reasonable value of the parameter Num p and the number of spatial conflicts in a block, C, as detailed in Equation (10).…”

Section: Setting Parametersmentioning

confidence: 99%

“…As one of the representative features in vector polygonal data, buildings have become the most common research objects in the field of map generalization. Research on map generalization related to buildings mainly includes building outline simplification [1,2], building selection [3], building group typification [4][5][6], and building arrangement pattern recognition [7][8][9][10]. In the process of building generalization, due to the reduction in the map scale or the application of related generalization operators, buildings and other features (such as roads) are covered, or the distance between the features is less than the minimum visible distance specified by the cartographic constraints, which generates spatial overlap or proximity conflicts [11].…”

Section: Introductionmentioning

confidence: 99%

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A Heuristic Approach for Resolving Spatial Conflicts of Buildings in Urban Villages

Li,

Yan,

et al. 2023

IJGI

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Building displacement is a common operation to resolve the spatial conflicts between map features, and it has important theoretical value and practical application significance for multi-scale mapping. The prerequisite for a successful displacement operation is that there is extra space around the conflicting buildings into which they can be displaced. Otherwise, additional generalization operators need to be combined to resolve spatial conflicts. Based on this idea, this study proposes a new heuristic spatial conflict resolution framework that mainly resolves the spatial conflicts between buildings and other features in urban villages by combining three cartographic generalization operators: selection, displacement, and aggregation. This method first reduces the density of buildings in the block through selection operation, then resolves the spatial conflicts between buildings and other features through displacement operation, and finally, the aggregation operation is performed to eliminate any remaining conflicts and newly generated conflicts. Experiments were carried out using real urban village data, and visual inspection and quantitative analysis were used to evaluate the experimental results. The evaluation results show that the proposed framework can not only resolve spatial conflicts well, but also maintain the spatial distribution and area balance of the buildings in urban villages.

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Section: Setting Parametersmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

A Heuristic Approach for Resolving Spatial Conflicts of Buildings in Urban Villages

Li,

Yan,

et al. 2023

IJGI

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Assessment of Disparity in Accessing Railway Stations in Thailand: an Application Geographic Information System Network Analysis

Theerathitichaipa,

Wisutwattanasak,

et al. 2023

J geovis spat anal

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Ensuring that people from all regions in a country can easily access railway stations is a crucial objective in the development of transportation and mobility systems and is essential for the convenient travel within the country. Furthermore, accurately assessing accessibility in disadvantaged areas is pivotal in designing and implementing development policies for equitable and sustainable transportation systems. Although various methods and tools are available for measuring accessibility, interpreting local-level data remains challenging. This study was conducted in Thailand, a country with severe accessibility disparities but undergoing considerable development. Therefore, the objective of this study was to evaluate accessibility disparities to analyze accessibility capabilities and inequality of railway stations. The objective of the study was to aid the development of inequality and railway services to cover all areas. The geographic information system methodology with network analysis tools was used to visualize and analyze spatial accessibility data and identify regional disparities. The results of this study indicate inequality in accessing railway services, which revealed that densely populated areas have superior access to railway stations compared with districts with a lower population density. Additionally, over 41% of the study area’s population resides more than half an hour away from access to a railway station. This study highlights regional inequality in accessing railway station services. Furthermore, strategies to alleviate this inequality are presented, and the findings will aid government agencies and railway planners in designing critical strategies or formulating policies for improving accessibility to rail transportation systems and reducing inequality in accessing railway services.

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Automated Map Generalization: Emerging Techniques and New Trends (Editorial)

Zhang,

Touya,

Meijers

2024

J geovis spat anal

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A Graphical Generalization of Localized Morphological Discontinuities on Medium-Scale State Topographic Maps

Cited by 3 publications

References 19 publications

A Heuristic Approach for Resolving Spatial Conflicts of Buildings in Urban Villages

A Heuristic Approach for Resolving Spatial Conflicts of Buildings in Urban Villages

Assessment of Disparity in Accessing Railway Stations in Thailand: an Application Geographic Information System Network Analysis

Automated Map Generalization: Emerging Techniques and New Trends (Editorial)

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