Reduction of graphic conflicts of point features in a mobile navigation system for inland waters

Marta Włodarczyk-Sielicka
ORCID: 0000-0002-7489-8437
Marine Technology Ltd.
Poland

Witold Kazimierski
ORCID: 0000-0002-9637-0457
Maritime University of Szczecin
Faculty of Navigation
Institute of Geoinformatics
Poland

Izabela Bodus-Olkowska
ORCID: 0000-0003-4366-0116
Maritime University of Szczecin
Faculty of Navigation
Institute of Geoinformatics
Poland

Abstract

The mobile navigation MOBINAV is an example of a spatial information system dedicated for recreational users of inland waters. \MOBINAV is implemented within the research project “Mobile Navigation for Inland Waters”. The main objectives of the project include developing a novel model of mobile cartographic presentation. During the model system development the authors focused on the users' needs and technical capabilities of mobile devices. Visualisation of spatial data in mobile devices is limited due to small displays. The defined model was to develop independent sets of data used in particular geocompositions, which resulted from generalization of the basic dataset. For polyline and polygon features classical simplification algorithms were used. When point features were displayed too much information was visible and, above all, in some places the symbols were overlapping. This was particularly evident for the depth points and information marks, which are very important during navigation. Therefore, it is necessary to correct a location of signatures and their matching to the scale display. The paper presents a proposed algorithm of detection and removal of graphic conflicts for point features in a mobile navigation system for inland waters. The exemplary results for individual map scales using real data imported from available sources were also included. The conducted tests suggest that the use of the algorithm presented in the paper greatly improves the correct interpretation of maps on mobile devices.

Received 17.12.2016 Accepted 19.02.2017 Published 30.06.2017

Keywords:

graphic conflicts; mobile navigation; cartographic presentation model; inland shipping; generalization

Full Text:

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References

Bereuter P, Weibel R, 2010: Generalisation of point data for mobile devices: a problem-oriented approach. 13th Workshop of the ICA commission on Generalisation and Multiple Representation, Zürich, Switzerland, September 12-13: 1-8.

Bereuter P., Weibel R, 2012: Algorithms for on-the-fly generalization of point data using quadtrees. The 2012 AutoCarto International Symposium on Automated Cartography, Columbus, Ohio, USA, September 16-18. http://www.geo.uzh.ch/~pbereut/page/publications/Bereuter-Weibel-2012.pdf

Chrobak T. (red.), 2007: Podstawy cyfrowej generalizacji kartograficznej (Fundamentals of digital cartographic generalisation). UWND AGH, Kraków.

Dogru A.O, Duchêne C., Van de Weghe N., Mustière S., Ulugtekin N.N., 2009: Generalization Approaches for Car Navigation Systems. 11/2009, 24th International Cartographic Conference (ICC 2009), Santiago, Chile.

Droppova V., 2011: The tools of automated generalization and building generalization in an ArcGIS environment. Slovak Journal of Civil Engineering vol. 19, iss. 1: 1-7.

Gotlib D., 2011: Metodyka prezentacji kartograficznych w mobilnych systemach lokalizacyjnych i nawigacyjnych (Methods of cartographic presentation for mobile navigation and location based systems). Prace Naukowe Politechniki Warszawskiej – Geodezja z. 48.

Harrie L., Zhang Q., Ringberg P., 2005: A case study of combined text and icon placement. Proceedings of the International Cartographic Conference 2005: Mapping Approaches into a Changing World, July 9-16, A Coruna, Spain.

Kazimierski W., Bodus-Olkowska I. Włodarczyk-Sielicka M., Zaniewicz G., 2015: Założenia rozszerzenia modelu prezentacji kartograficznej na potrzeby system mobilnej nawigacji śródlądowej (The concept of expansion of cartographic presentation model in a mobile navigation system for inland waters). Roczniki Geomatyki t. 13, z. 4(70): 335-348, PTIP, Warszawa.

Kazimierski W., Włodarczyk-Sielicka M., 2016: Technology of spatial data geometrical simplification in maritime mobile information system for coastal waters. Polish Maritime Research vol. 23, no. 3 (91): 3-12.

Kovanen J., Sarjakoski T.L, 2013: Sequential displacement and grouping of point symbols in a mobile context. Journal of Location Based Services vol. 7, iss. 2.

Li Z., 2017: Algorithmic foundation of multi-scale spatial representation, CRC Press, Taylor and Francis Group.

Microsoft. Dostęp 08.02.2017 r. https://docs.microsoft.com/en-us/uwp/api/Windows.UI.Xaml.Controls.Maps

Periskal cvba. Dostęp: 08.02.2017 r. http://www.periskal.com/en/inland-skippers/products/periskal-inland-ecdis-viewer/periskal-viewer-including-routeplanner

Rozporządzenie Ministra Infrastruktury z dnia 28 kwietnia 2003 r. w sprawie przepisów żeglugowych na śródlądowych drogach wodnych(The Decree of the Minister of Infrastructure of April 28, 2003 on shipping regulations on inland waterways). Dz.U. 2003 nr 212 poz. 2072.

Saliszczew K., 1998: Kartografia ogólna (The general cartography). Wydawnictwo naukowe PWN, Warszawa.

Shea K.S., McMaster R.B., 1989: Cartographic generalization in a digital environment: When and how to generalize. Proceedings of 9th International Symposium on Computer-Assisted Cartography (Auto-Carto 9): 56-67.

Włodarczyk-Sielicka M., Kazimierski W., Marek M., 2014: Propozycja algorytmów integracji różnych danych przestrzennych w systemie mobilnej nawigacji śródlądowej (The proposal for algorithms to integrate various spatial data in Mobil Inland Navigation System). Roczniki Geomatyki t. 12 z. 4(66): 445-457, PTIP, Warszawa.

Zaniewicz G., Kazimierski W., Włodarczyk-Sielicka M., 2014: Problematyka integracji danych przestrzennych z różnych źródeł w systemie mobilnej nawigacji śródlądowej (Problems of spatial data integration from various sources in mobile inland navigation system). Roczniki Geomatyki t. 12 z.3(65): 337-345, PTIP, Warszawa.