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相关概念视频

Thematic Layering in GIS01:30

Thematic Layering in GIS

40
In the past, planning projects such as schools or public facilities required extensive manual effort to gather and compile data. Information such as property boundaries, soil characteristics, road networks, zoning regulations, and flood zones had to be sourced individually from courthouses, utility providers, and registry offices. Assembling these datasets into a coherent format often took several months, delaying project timelines.The introduction of Geographic Information Systems (GIS)...
40
Manipulation and Analysis01:21

Manipulation and Analysis

28
GIS manipulation and analysis functions are vital for decision-making and planning. These activities range from data retrieval tasks, such as selecting information based on specific criteria, to advanced analytical techniques that address complex spatial problems.One critical GIS analysis method is overlaying, which combines multiple data layers to examine impacts. For example, overlaying a river-dammed lake boundary with road networks can identify affected infrastructure. Another common...
28
Selected Data About Geographic Locations01:25

Selected Data About Geographic Locations

28
Geographic Information Systems (GIS) rely on two core types of data: spatial data and attribute data.Spatial DataSpatial data defines the physical location of features within a coordinate system, typically expressed in terms of latitude and longitude. It provides precise positioning for elements like roads, rivers, or buildings.Attribute DataAttribute data complements spatial data by adding descriptive information about these features. For example, a road's spatial data includes its start and...
28
Levels of Use of a GIS01:29

Levels of Use of a GIS

56
Geographic Information Systems (GIS) operate across three levels of application, each representing an increasing degree of complexity: data management, analysis, and prediction. These levels reflect the expanding functionality and versatility of GIS technology in handling spatial data for diverse purposes.Data ManagementAt its foundational level, GIS serves as a tool for data management, enabling the input, storage, retrieval, and organization of spatial data. This level is often employed in...
56
Design Example: Alignment of a Road Line Using GIS01:17

Design Example: Alignment of a Road Line Using GIS

51
The alignment of a road line using Geographic Information Systems (GIS) is a critical process in civil engineering, combining advanced technology with practical decision-making. This methodology begins with the collection of geospatial data, including information on land cover, geomorphology, drainage patterns, slope, and contour details. Such data is typically acquired through satellite imagery and GIS tools, offering a comprehensive understanding of the terrain.Once the data is gathered, it...
51
GIS Software, Hardware, and Sources of GIS Data01:23

GIS Software, Hardware, and Sources of GIS Data

76
A Geographic Information System (GIS) combines specialized software and hardware to effectively manage, analyze, and present spatial and related data. GIS software includes critical functionalities such as a user interface for easy navigation, database management tools for handling spatial and attribute data, and data retrieval features for efficient access. Analytical tools transform raw data into insights, while display functions produce maps and reports in various formats for effective...
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相关实验视频

Updated: Jul 12, 2025

Reefshape: A System for the Efficient Collection and Automated Processing of Time-Series Underwater Photogrammetry Data for Benthic Habitat Monitoring
13:35

Reefshape: A System for the Efficient Collection and Automated Processing of Time-Series Underwater Photogrammetry Data for Benthic Habitat Monitoring

Published on: June 13, 2025

381

一种使用ESRI Shapefiles创建复杂现实世界网络的方法.

Harish1, Peter Mooney2, Edgar Galván3

  • 1Naturally Inspired Computation Research Group, Department of Computer Science, National University of Ireland Maynooth, Ireland.

MethodsX
|October 23, 2023
PubMed
概括
此摘要是机器生成的。

研究人员现在可以很容易地使用ESRI Shapefiles创建现实世界的网络图表进行分析. 这种方法简化了NetworkX和OSMnx中的图形创建,从而实现了高效的网络分析和理论验证.

关键词:
复杂的真实世界网络使用地理空间数据.这是ESRI的Shapefiles.图形网络 图形网络网络X 网络X 网络X这是一个OSMnxx.

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Measuring the Structure, Composition, and Change of Underwater Environments with Large-area Imaging
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Use of Principal Components for Scaling Up Topographic Models to Map Soil Redistribution and Soil Organic Carbon
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Use of Principal Components for Scaling Up Topographic Models to Map Soil Redistribution and Soil Organic Carbon

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相关实验视频

Last Updated: Jul 12, 2025

Reefshape: A System for the Efficient Collection and Automated Processing of Time-Series Underwater Photogrammetry Data for Benthic Habitat Monitoring
13:35

Reefshape: A System for the Efficient Collection and Automated Processing of Time-Series Underwater Photogrammetry Data for Benthic Habitat Monitoring

Published on: June 13, 2025

381
Measuring the Structure, Composition, and Change of Underwater Environments with Large-area Imaging
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Measuring the Structure, Composition, and Change of Underwater Environments with Large-area Imaging

Published on: April 18, 2025

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Use of Principal Components for Scaling Up Topographic Models to Map Soil Redistribution and Soil Organic Carbon
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科学领域:

  • 计算机科学 计算机科学
  • 地理信息系统 地理信息系统
  • 网络分析 网络分析

背景情况:

  • 在图表中进行最佳路线搜索对于现实应用至关重要.
  • 网络X和OSMnx是用于网络分析的流行的Python包.
  • 从ESRI Shapefiles创建网络是复杂的,因为数据格式要求.

研究的目的:

  • 从ESRI Shapefiles中创建NetworkX或OSMnx图形网络的灵活方法.
  • 提供一个详细的过程,用于将Shapefile数据转换成与图形分析库兼容的格式.
  • 建议数据清理策略,以减少图表创建中的资源消耗.

主要方法:

  • 使用存储在ESRI Shapefiles中的道路网络拓数据.
  • 开发一个数据兼容性的逐步转换过程.
  • 实施数据清理策略,以优化图形结构和资源使用.

主要成果:

  • 一种简化和灵活的方法,用于生成图形网络表示.
  • 成功转换ESRI Shapefile数据用于NetworkX和OSMnx.
  • 通过数据清理而没有结构性扭曲,证明了资源消耗的减少.

结论:

  • 提出的方法使研究人员能够有效地从现实数据中生成图形网络.
  • 这便于通过评估网络效率来验证理论.
  • 潜在的好处包括先进的运输系统,图形神经网络和多目标遗传算法.