Informacja

Drogi użytkowniku, aplikacja do prawidłowego działania wymaga obsługi JavaScript. Proszę włącz obsługę JavaScript w Twojej przeglądarce.

English (EN)·Polski (PL)·Yкраїнський (UK)
Przejdź do strony domowej biblioteki Centralna Biblioteka Wojskowa Link otwiera się w nowym oknie Logo biblioteki Prolib Integro - strona głównaCentralna Biblioteka Wojskowa

Wyszukujesz frazę "generalization" wg kryterium: Temat

  Lista filtrów
Wyrównaj
    Wyświetlanie 1-4 z 4
    Tytuł:
    Digital Cartographic Generalization – Study of Its Thresholds and Stages in Example of Cartographic Line
    Autorzy:
    Budkowski, Szczepan
    Powiązania:
    https://bibliotekanauki.pl/articles/27314278.pdf
    Data publikacji:
    2023
    Wydawca:
    Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. Wydawnictwo AGH
    Tematy:
    digital cartographic generalization
    generalization thresholds
    cartography
    simplification algorithm
    Opis:
    Digital generalization of spatial data has been the goal of the research in many research centers around the world. This article presents the evolution of cartographic generalization, drawing the reader’s attention to the change of its nature from analog to digital. Despite the passage of time and developing technologies, scientists have unfortunately yet to develop a uniform automatic generalization algorithm. One of the factors that hinder this process is the high complexity and complication of the whole process. The article is an attempt to answer this problem and addresses the issue of digital cartographic generalization by creating a proposal of thresholds and stages of cartographic generalization depending on the ratios of the numbers of points of generalized objects. The publication attempts to examine the possibility of applying an objective criterion of drawing recognition by examining digital generalization algorithms and setting its thresholds. The practical aim of the publication is to present generalization thresholds on the example of Chrobak’s algorithm. The proposal to make the selection of generalization thresholds dependent on the percentage share of points is a solution that is as simple to use as it is to implement. The method of defining intervals based on the three-sigma rule is a solution that guarantees that the obtained results will be characteristic of the probability density function of the normal distribution, which will define individual intervals most objectively.
    Źródło:
    Geomatics and Environmental Engineering; 2023, 17, 6; 77--93
    1898-1135
    Pojawia się w:
    Geomatics and Environmental Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Rodzaje generalizacji treści map topograficznych na przykladzie mapy 1:50 000
    Types of topographic maps generalization based on an example of map in 1:50 000
    Autorzy:
    Ostrowski, W.
    Powiązania:
    https://bibliotekanauki.pl/articles/204218.pdf
    Data publikacji:
    2003
    Wydawca:
    Polskie Towarzystwo Geograficzne
    Tematy:
    kartografia
    mapa
    generalizacja
    generalizacja kartograficzna
    cartography
    map
    generalization
    cartography generalization
    Opis:
    Autor wyróżnia i bliżej charakteryzuje pięć rodzajów generalizacji kartograficznej, jakie zastosowano przy opracowaniu mapy topograficznej 1:50 000 na podstawie mapy 1:10 000.
    The article presents an analysis of a process of generalization in the preparation of topographic maps. The analysis was conducted on an exaple of a Polish topographic map in 1: 50 000 published by Survey- or General of Poland in the years 1995-2002. Most sheets were obtained through the generalization of a topographic map in 1:10 000. Generalization of a 1:10 000 map into 1:50 000 is very evident ( the area is reduced 25 times). A comparison of the contents of these two maps makes it possible to determine how topographic maps are generalized in practice. The analysis points out that there are five basic generalization types used for generalization of a medium-scale topographic map (1:50 000). They are as follows: * selection of categories for presented objects and their classification * selection of objects within each category * approximation or elimination of quantitative characteristics * replacement of area symbols with point or line symbols * simplifacation of objects' shapes After generalization the number of contents' categories on a 1:50 000 map is 15% lower than on a 1:10 000 map. It results from various generalization processes: complete elimination of several categories, generalization of qualitative features of contents, combining meaning of several symbols, substitution of separate symbols with a joint symbol, introduction of new symbols representing general issues absent from maps in larger scales. Object selection is conducted with quantitative criteria (area, length, width, depth or height, density), qualitative criteria (spatial interrelations, functional criterion, name criterion) or mixed criteria (joint criteria). Quantitative criteria on a topographic map are generalized through reduction of the number of contour lines and lower accuracy of numeric description of object and points (e.g. height points, numbers of residents). On a 1:50 000 map signatures of relief altitude are removed. Area symbols representing dimensions of particular objects are replaced with point or line symbols. These dimensions can include the area, length or width of the object. Simplification of objects' shapes relies on the elimination of minute contour details and "holes" within a marked area, joining of neighboring area and occasionally enlarging small areas and widening of thin ones. The listed types of generalization basucally represent the consecutive stages of the process. First we select object classes, then objects within a class. Next we choose a presentation method appropriate for the size of the object in scale or with symbols; objects shown with area symbols are often simplified. Description of methods and criteria of generalization of topographic maps is vital for the attempts to automate the process.
    Źródło:
    Polski Przegląd Kartograficzny; 2003, T. 35, nr 4, 4; 251-258
    0324-8321
    Pojawia się w:
    Polski Przegląd Kartograficzny
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    PORÓWNANIE WYNIKÓW ZASTOSOWANIA ALGORYTMÓW GENERALIZACJI KARTOGRAFICZNEJ DO UPROSZCZENIA LINII BRZEGOWEJ WYBRANYCH WÓD POWIERZCHN IOWYCH Z BAZY BDOT10K
    Autorzy:
    Cybulski, Paweł
    Powiązania:
    https://bibliotekanauki.pl/articles/943774.pdf
    Data publikacji:
    2018
    Wydawca:
    Poznańskie Towarzystwo Przyjaciół Nauk
    Tematy:
    cartographic generalization
    geomatics
    infrastructure for spatial data
    cartography
    spatial database
    Opis:
    The article discusses the issue of cartographic generalization of surface waters based on algorithms. In the process of developing topographic maps, spatial databases play an important role, in particular, BDOT10k. According to the regulation which regulates how to make topographic maps, there are no defined principles for generalization. Therefore, the article analyzes the simplification results of three algorithms and compares them with respect to their suitability for cartographic generalization of the chosen surface waters.
    Źródło:
    Badania Fizjograficzne Seria A - Geografia Fizyczna; 2018, 9(69); 35-44
    2081-6014
    Pojawia się w:
    Badania Fizjograficzne Seria A - Geografia Fizyczna
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Wybrane operatory generalizacyjne i ich implementacja w systemie informacji przestrzennej ARC/INFO
    Autorzy:
    Cichociński, P.
    Powiązania:
    https://bibliotekanauki.pl/articles/131322.pdf
    Data publikacji:
    2001
    Wydawca:
    Stowarzyszenie Geodetów Polskich
    Tematy:
    system informacji przestrzennej
    kartografia
    generalizacja automatyczna
    przetwarzanie danych przestrzennych
    spatial information system
    cartography
    automatic generalization
    spatial data processing
    Opis:
    The paper presents the problem of automatic generalization of databases in spatial information systems. The requirements for generalization procedures are analyzed. Existing generalization operators are listed. Generalization functions to be found in professional GIS software are briefly described. New algorithms of complicated generalization tasks and programs based on these algorithms are presented.
    Źródło:
    Archiwum Fotogrametrii, Kartografii i Teledetekcji; 2001, 11; 4-67-4-73
    2083-2214
    2391-9477
    Pojawia się w:
    Archiwum Fotogrametrii, Kartografii i Teledetekcji
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-4 z 4

      Ta witryna wykorzystuje pliki cookies do przechowywania informacji na Twoim komputerze. Pliki cookies stosujemy w celu świadczenia usług na najwyższym poziomie, w tym w sposób dostosowany do indywidualnych potrzeb. Korzystanie z witryny bez zmiany ustawień dotyczących cookies oznacza, że będą one zamieszczane w Twoim komputerze. W każdym momencie możesz dokonać zmiany ustawień dotyczących cookies