Gdzie mogę znaleźć plik kształtu, który zawiera granice dla głównych miast w Stanach Zjednoczonych?
Próbowałem strony internetowej spisu, ale nic nie znalazłem.
Gdzie mogę znaleźć plik kształtu, który zawiera granice dla głównych miast w Stanach Zjednoczonych?
Próbowałem strony internetowej spisu, ale nic nie znalazłem.
Odpowiedzi:
Dane TIGER z biura spisowego są dostępne na stronie http://www.census.gov/geo/www/tiger/
Trochę stary, ale dobry.
http://www.census.gov/geo/cob/bdy/cc/cc00shp/cc99_d00_shp.zip
Nie mówisz, czy używasz esri, czy nie.
Produkty ESRI są dostarczane z płytą DVD z danymi i mapami.
Nie jest w shp, ale można go wybrać i przekonwertować na kształt za pomocą arcmap.
Zainstalowałem mój na dysku sieciowym w folderze mapdata. Reszta ścieżki jest taka.
G: \ MapData \ ESRI_Data \ streetmap_na \ data \ citylim.sdc
Sprawdź pliki TIGER / Line. Chcesz poszukać warstw „Umieść” dla każdego stanu, którą możesz wyszczególnić w plikach kształtów opartych na narodach , wybierając każdy stan. Lub, w wersji 2012, możesz pobrać wszystkie stany z tej strony .
Pobieranie danych
Można nabyć US Census Place danych, który obejmuje miasta, tutaj .
Na przykład dane dotyczące miejsca w Rhode Island w 2017 r. Są dostępne tutaj .
Aby ułatwić pobieranie zbiorcze, pełna lista danych miejsc 2017 to:
https://www2.census.gov/geo/tiger/TIGER2017/PLACE/tl_2017_01_place.zip
https://www2.census.gov/geo/tiger/TIGER2017/PLACE/tl_2017_02_place.zip
https://www2.census.gov/geo/tiger/TIGER2017/PLACE/tl_2017_04_place.zip
https://www2.census.gov/geo/tiger/TIGER2017/PLACE/tl_2017_05_place.zip
https://www2.census.gov/geo/tiger/TIGER2017/PLACE/tl_2017_06_place.zip
https://www2.census.gov/geo/tiger/TIGER2017/PLACE/tl_2017_08_place.zip
https://www2.census.gov/geo/tiger/TIGER2017/PLACE/tl_2017_09_place.zip
https://www2.census.gov/geo/tiger/TIGER2017/PLACE/tl_2017_10_place.zip
https://www2.census.gov/geo/tiger/TIGER2017/PLACE/tl_2017_11_place.zip
https://www2.census.gov/geo/tiger/TIGER2017/PLACE/tl_2017_12_place.zip
https://www2.census.gov/geo/tiger/TIGER2017/PLACE/tl_2017_13_place.zip
https://www2.census.gov/geo/tiger/TIGER2017/PLACE/tl_2017_15_place.zip
https://www2.census.gov/geo/tiger/TIGER2017/PLACE/tl_2017_16_place.zip
https://www2.census.gov/geo/tiger/TIGER2017/PLACE/tl_2017_17_place.zip
https://www2.census.gov/geo/tiger/TIGER2017/PLACE/tl_2017_18_place.zip
https://www2.census.gov/geo/tiger/TIGER2017/PLACE/tl_2017_19_place.zip
https://www2.census.gov/geo/tiger/TIGER2017/PLACE/tl_2017_20_place.zip
https://www2.census.gov/geo/tiger/TIGER2017/PLACE/tl_2017_21_place.zip
https://www2.census.gov/geo/tiger/TIGER2017/PLACE/tl_2017_22_place.zip
https://www2.census.gov/geo/tiger/TIGER2017/PLACE/tl_2017_23_place.zip
https://www2.census.gov/geo/tiger/TIGER2017/PLACE/tl_2017_24_place.zip
https://www2.census.gov/geo/tiger/TIGER2017/PLACE/tl_2017_25_place.zip
https://www2.census.gov/geo/tiger/TIGER2017/PLACE/tl_2017_26_place.zip
https://www2.census.gov/geo/tiger/TIGER2017/PLACE/tl_2017_27_place.zip
https://www2.census.gov/geo/tiger/TIGER2017/PLACE/tl_2017_28_place.zip
https://www2.census.gov/geo/tiger/TIGER2017/PLACE/tl_2017_29_place.zip
https://www2.census.gov/geo/tiger/TIGER2017/PLACE/tl_2017_30_place.zip
https://www2.census.gov/geo/tiger/TIGER2017/PLACE/tl_2017_31_place.zip
https://www2.census.gov/geo/tiger/TIGER2017/PLACE/tl_2017_32_place.zip
https://www2.census.gov/geo/tiger/TIGER2017/PLACE/tl_2017_33_place.zip
https://www2.census.gov/geo/tiger/TIGER2017/PLACE/tl_2017_34_place.zip
https://www2.census.gov/geo/tiger/TIGER2017/PLACE/tl_2017_35_place.zip
https://www2.census.gov/geo/tiger/TIGER2017/PLACE/tl_2017_36_place.zip
https://www2.census.gov/geo/tiger/TIGER2017/PLACE/tl_2017_37_place.zip
https://www2.census.gov/geo/tiger/TIGER2017/PLACE/tl_2017_38_place.zip
https://www2.census.gov/geo/tiger/TIGER2017/PLACE/tl_2017_39_place.zip
https://www2.census.gov/geo/tiger/TIGER2017/PLACE/tl_2017_40_place.zip
https://www2.census.gov/geo/tiger/TIGER2017/PLACE/tl_2017_41_place.zip
https://www2.census.gov/geo/tiger/TIGER2017/PLACE/tl_2017_42_place.zip
https://www2.census.gov/geo/tiger/TIGER2017/PLACE/tl_2017_44_place.zip
https://www2.census.gov/geo/tiger/TIGER2017/PLACE/tl_2017_45_place.zip
https://www2.census.gov/geo/tiger/TIGER2017/PLACE/tl_2017_46_place.zip
https://www2.census.gov/geo/tiger/TIGER2017/PLACE/tl_2017_47_place.zip
https://www2.census.gov/geo/tiger/TIGER2017/PLACE/tl_2017_48_place.zip
https://www2.census.gov/geo/tiger/TIGER2017/PLACE/tl_2017_49_place.zip
https://www2.census.gov/geo/tiger/TIGER2017/PLACE/tl_2017_50_place.zip
https://www2.census.gov/geo/tiger/TIGER2017/PLACE/tl_2017_51_place.zip
https://www2.census.gov/geo/tiger/TIGER2017/PLACE/tl_2017_53_place.zip
https://www2.census.gov/geo/tiger/TIGER2017/PLACE/tl_2017_54_place.zip
https://www2.census.gov/geo/tiger/TIGER2017/PLACE/tl_2017_55_place.zip
https://www2.census.gov/geo/tiger/TIGER2017/PLACE/tl_2017_56_place.zip
https://www2.census.gov/geo/tiger/TIGER2017/PLACE/tl_2017_60_place.zip
https://www2.census.gov/geo/tiger/TIGER2017/PLACE/tl_2017_66_place.zip
https://www2.census.gov/geo/tiger/TIGER2017/PLACE/tl_2017_69_place.zip
https://www2.census.gov/geo/tiger/TIGER2017/PLACE/tl_2017_72_place.zip
https://www2.census.gov/geo/tiger/TIGER2017/PLACE/tl_2017_78_place.zip
Interpretacja danych
Dokumentacja techniczna dla amerykańskiego spisu ludności z 2017 r. Jest dostępna tutaj . Znalazłem go, wyszukując w Google „namelsad classfp” (nietypowe nazwy pól z wcześniej uzyskanych plików kształtów).
Wyszukaj w pliku „_place” (z podkreśleniem), aby znaleźć znaczenie pól w pozyskanych wcześniej plikach kształtów. To są:
Field Length Type Description
STATEFP 2 String Current state FIPS code
PLACEFP 5 String Current place FIPS code
PLACENS 8 String Current place GNIS code
GEOID 7 String Place identifier; a concatenation of the current state FIPS code and place FIPS code
NAME 100 String Current place name
NAMELSAD 100 String Current name and the translated legal/statistical area description for place
LSAD 2 String Current legal/statistical area description code for place
CLASSFP 2 String Current FIPS class code
PCICBSA 1 String Current metropolitan or micropolitan statistical area principal city indicator
PCINECTA 1 String Current New England city and town area principal city indicator
MTFCC 5 String G4110 (incorporated place) and G4210 (census designated place)
FUNCSTAT 1 String Current functional status
ALAND 14 Number Current land area
AWATER 14 Number Current water area
INTPTLAT 11 String Current latitude of the internal point
INTPTLON 12 String Current longitude of the internal poin
Będziesz wtedy chciał poznać wartości CLASSFP
kolumny. Są one dostępne tutaj . Niektóre z nich to:
C1 An incorporated place that is governmentally active, is not related to an
Alaska Native village statistical area (ANVSA), and does not serve as a
minor civil division (MCD) equivalent.
C2 Incorporated place that also serves as a minor civil division (MCD)
equivalent because, although the place is coextensive with an MCD, the U.S.
Census Bureau, in agreement with state officials, does not recognize that
MCD for presenting census data because the MCD cannot provide governmental
services (applies to Iowa and Ohio only).
C3 Incorporated place that is a consolidated city.
C5 Incorporated place that also serves as a minor civil division (MCD)
equivalent because it is not part of any MCD or a county subdivision
classified as Z5.
C6 Incorporated place that coincides with or approximates an Alaska Native
village statistical area (ANVSA).
C7 An incorporated place that is an independent city; that is, it also
serves as a county equivalent because it is not part of any county and a
minor civil division (MCD) equivalent because it is not part of any MCD.
C8 The portion ("balance") of a consolidated city that excludes the
separately incorporated place(s) within that jurisdiction.
C9 An incorporated place whose government is operationally inactive and is
not included in any other C subclass.
U1 Census designated place (CDP) with a name that is commonly recognized for
the populated area, and designated as a populated place by the U.S.
Geological Survey.
U2 Census designated place (CDP) with a name that is not commonly recognized
for the populated area (e.g., a combination of the names of two or three
commonly recognized communities, or a name that identifies the location of
the CDP in relation to an adjacent incorporated place).
U9 A census designated place (CDP) that coincides with, or approximates, an
Alaska Native Village Statistical Area (ANVSA).
http://www.nws.noaa.gov/geodata/catalog/national/html/cities.htm
Plik jest duży, ale myślę, że można go przyciąć w zależności od potrzeb.
koordinates.com to darmowe miejsce, w którym można znaleźć wiele kształtów granicznych miasta. Możesz nawet wybrać układ współrzędnych. Oto link do miast w Teksasie.
Poszukaj innych miast. Mają dużo na tej stronie. Musisz utworzyć login.