{"title":"不同地形类型的高程显示对地图图形内容的影响","authors":"Monika Jílková, Radek Barvíř, Vít Voženílek","doi":"10.33542/gc2021-2-03","DOIUrl":null,"url":null,"abstract":"The issue of graphic map load is currently very often overlooked. Conversely, having an objective knowledge of the level of a map load helps cartographers to assume the map’s readability and suitability for a target group of users. The aim of this study is, therefore, to use the Graphic Map Load Measuring Tool (GMLMT) and Subband Entropy script as objective metrics to evaluate the influence of terrain type (plains, hills, highlands, mountains, high mountains) and elevation representation method (contour lines, shading, colour hypsometry and their combinations) to graphic map load. The resulting map load values are visualized using multiple bar graphs and tables. Measurements performed using individual metrics confirmed the assumption that the map load of various terrain types differs the most when using contour lines. Hypsography using contour lines also reached the highest graphic map load among other methods. Hillshading and colour hypsography each also react specifically to increasing elevation differences. While graphic map load is increasing with increasing elevation differences, in the case of hillshading, map load seems to be more dependent on small terrain shapes and fragmentation of hillsides’ aspect.","PeriodicalId":42446,"journal":{"name":"Geographia Cassoviensis","volume":"1 1","pages":""},"PeriodicalIF":0.5000,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Vliv znázornění výškopisu v různých typech reliéfu na grafickou náplň map\",\"authors\":\"Monika Jílková, Radek Barvíř, Vít Voženílek\",\"doi\":\"10.33542/gc2021-2-03\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"The issue of graphic map load is currently very often overlooked. Conversely, having an objective knowledge of the level of a map load helps cartographers to assume the map’s readability and suitability for a target group of users. The aim of this study is, therefore, to use the Graphic Map Load Measuring Tool (GMLMT) and Subband Entropy script as objective metrics to evaluate the influence of terrain type (plains, hills, highlands, mountains, high mountains) and elevation representation method (contour lines, shading, colour hypsometry and their combinations) to graphic map load. The resulting map load values are visualized using multiple bar graphs and tables. Measurements performed using individual metrics confirmed the assumption that the map load of various terrain types differs the most when using contour lines. Hypsography using contour lines also reached the highest graphic map load among other methods. Hillshading and colour hypsography each also react specifically to increasing elevation differences. While graphic map load is increasing with increasing elevation differences, in the case of hillshading, map load seems to be more dependent on small terrain shapes and fragmentation of hillsides’ aspect.\",\"PeriodicalId\":42446,\"journal\":{\"name\":\"Geographia Cassoviensis\",\"volume\":\"1 1\",\"pages\":\"\"},\"PeriodicalIF\":0.5000,\"publicationDate\":\"2021-01-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Geographia Cassoviensis\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.33542/gc2021-2-03\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q3\",\"JCRName\":\"GEOGRAPHY\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Geographia Cassoviensis","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.33542/gc2021-2-03","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"GEOGRAPHY","Score":null,"Total":0}
Vliv znázornění výškopisu v různých typech reliéfu na grafickou náplň map
The issue of graphic map load is currently very often overlooked. Conversely, having an objective knowledge of the level of a map load helps cartographers to assume the map’s readability and suitability for a target group of users. The aim of this study is, therefore, to use the Graphic Map Load Measuring Tool (GMLMT) and Subband Entropy script as objective metrics to evaluate the influence of terrain type (plains, hills, highlands, mountains, high mountains) and elevation representation method (contour lines, shading, colour hypsometry and their combinations) to graphic map load. The resulting map load values are visualized using multiple bar graphs and tables. Measurements performed using individual metrics confirmed the assumption that the map load of various terrain types differs the most when using contour lines. Hypsography using contour lines also reached the highest graphic map load among other methods. Hillshading and colour hypsography each also react specifically to increasing elevation differences. While graphic map load is increasing with increasing elevation differences, in the case of hillshading, map load seems to be more dependent on small terrain shapes and fragmentation of hillsides’ aspect.
期刊介绍:
Geographia Cassoviensis is a biannual peer-reviewed journal published by the Pavol Jozef Šafárik University in Košice since 2007. It is available both in print and open-access electronic version. The journal publishes original research articles from Geography and other closely-related research fields. Since 2016 the journal is indexed in SCOPUS and ERIH PLUS - European Reference Index for Humanities and Social Sciences, and since 2017 also in Emerging Sources Citation Index by Clarivate Analytics.