Publication details
A Graphical Generalization of Localized Morphological Discontinuities on Medium-Scale State Topographic Maps
| Authors | |
|---|---|
| Year of publication | 2022 |
| Type | Article in Periodical |
| Magazine / Source | Journal of Geovisualization and Spatial Analysis |
| MU Faculty or unit | |
| Citation | |
| web | https://link.springer.com/article/10.1007/s41651-022-00112-2 |
| Doi | http://dx.doi.org/10.1007/s41651-022-00112-2 |
| Keywords | Localized morphological discontinuities; Automated cartographic generalization; Topographic map; Structure recognition; Rule-based generalization system |
| Description | Localized morphological discontinuities are essential features in topographic maps and aid in reading terrain from a map. The present study proposes specific procedures for cartographic generalization of discontinuities on medium-scale topographic maps. Localized morphological discontinuity is defined as a location where the grade of the terrain changes discontinuously. Localized morphological discontinuity is indicated by a contour line which contains small, consecutive lines extending to its right side. Approximately 5% of localized morphological discontinuities do not collide with other elements. After performing our generalization procedures, a significant number of discontinuities conformed with constraints consisting of localized morphological discontinuity parallel to or aligned with other line features (roads, tracks, rivers, or outlines of land-use boundaries). The procedure employs two components: a database and a plugin. The database was implemented in PL/pgSQL and C, and the plugin (ArcGIS Pro plugin) was implemented in C# using.NET. Processing resolved 70% of discontinuities which were in collision. The article discusses various aspects of this generalization procedure. |