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Automated map projection selection for GIS
Cartography and Geographic Information Science ( IF 2.6 ) Pub Date : 2020-02-25 , DOI: 10.1080/15230406.2020.1717379
Paul Christopher Gosling 1 , Elias Symeonakis 1
Affiliation  

ABSTRACT

The selection of an appropriate map projection has a fundamental impact on the visualization and analysis of geographic information. Distortion is inevitable and the decision requires simultaneous consideration of several different factors; a process which can be confusing for many cartographers and GIS users. The last few decades have seen numerous attempts to create automated map projection selection solutions based on traditional classification and selection guidelines, but there are no existing tools directly accessible to users of GIS software when making projection selection decisions. This paper outlines key elements of projection selection and distortion theory, critically reviews the previous solutions, and introduces a new tool developed for ESRI’s ArcGIS, employing an original selection method tailored to the specific purpose and geographical footprint characteristics of a GIS project. The tool incorporates novel quantitative projection distortion measures which are currently unavailable within existing GIS packages. Parameters are optimized for certain projections to further reduce distortions. A set of candidate projected coordinate systems are generated that can be applied to the GIS project; enabling a qualitative visual assessment to facilitate the final user selection. The proposed tool provides a straightforward application which improves understanding of the projection selection process and assists users in making more effective use of GIS.



中文翻译:

GIS的自动地图投影选择

摘要

选择合适的地图投影对地理信息的可视化和分析具有根本性的影响。扭曲是不可避免的,而决定需要同时考虑几个不同的因素。这个过程可能会使许多制图师和GIS用户感到困惑。在过去的几十年中,已经进行了许多尝试,这些尝试基于传统的分类和选择准则来创建自动地图投影选择解决方案,但是在做出投影选择决策时,没有GIS软件的用户可以直接使用的现有工具。本文概述了投影选择和失真理论的关键要素,严格审查了以前的解决方案,并介绍了为ESRI的ArcGIS开发的新工具,采用适合GIS项目特定目的和地理足迹特征的原始选择方法。该工具结合了新颖的定量投影失真度量,这些度量在现有GIS软件包中目前不可用。针对某些投影优化了参数,以进一步减少失真。生成了一组候选投影坐标系,这些坐标系可以应用于GIS项目。进行定性视觉评估,以方便最终用户选择。所提出的工具提供了一种简单易用的应用程序,可提高对投影选择过程的理解,并帮助用户更有效地使用GIS。该工具结合了新颖的定量投影失真度量,这些度量在现有GIS软件包中目前不可用。针对某些投影优化了参数,以进一步减少失真。生成了一组候选投影坐标系,这些坐标系可以应用于GIS项目。进行定性视觉评估,以方便最终用户选择。所提出的工具提供了一种简单易用的应用程序,可提高对投影选择过程的理解,并帮助用户更有效地使用GIS。该工具结合了新颖的定量投影失真度量,这些度量在现有GIS软件包中目前不可用。针对某些投影优化了参数,以进一步减少失真。生成了一组候选投影坐标系,这些坐标系可以应用于GIS项目。进行定性视觉评估,以方便最终用户选择。所提出的工具提供了一种直接的应用程序,可提高对投影选择过程的理解,并帮助用户更有效地使用GIS。进行定性视觉评估,以方便最终用户选择。所提出的工具提供了一种简单易用的应用程序,可提高对投影选择过程的理解,并帮助用户更有效地使用GIS。进行定性视觉评估,以方便最终用户选择。所提出的工具提供了一种简单易用的应用程序,可提高对投影选择过程的理解,并帮助用户更有效地使用GIS。

更新日期:2020-02-25
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