maps.nyc.gov

Class: Local

nyc.storage.Local

new Local()

Class to provide access to localStorage and filesystem
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Methods

(abstract) addToMap(map, features, projcs) → {Object}

Parameters:
Name Type Description
map ol.Map | L.Map
features string | Array.<Object>
projcs string
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Returns:
Type
Object

canDownload() → {boolean}

Check if download is available
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Returns:
Type
boolean

getItem(key) → {string}

Get data from localStorage if available
Parameters:
Name Type Description
key string Storage key
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Returns:
Type
string

loadGeoJsonFile(map, callbackopt, fileopt)

Open a GeoJSON file from local disk
Parameters:
Name Type Attributes Description
map ol.Map | L.Map The map in which the data will be displayed
callback function <optional>
 The callback function to receive the added ol.vector.Layer
file File <optional>
 File
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loadShapeFile(map, callbackopt, filesopt)

Open a shapefile from local disk
Parameters:
Name Type Attributes Description
map ol.Map | L.Map The map in which the data will be displayed
callback function <optional>
 The callback function to receive the added ol.vector.Layer
files FileList <optional>
 Files (.shp, .dbf, .prj)
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See:

readTextFile(callback, fileopt)

Open a text file from local disk
Parameters:
Name Type Attributes Description
callback function The callback function to receive file content
file File <optional>
 File
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removeItem(key) → {string}

Remove data from localStorage if available
Parameters:
Name Type Description
key string Storage key
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Returns:
Type
string

saveGeoJson(name, data)

Save data to a file prompting the user with a file dialog
Parameters:
Name Type Description
name string File name
data string JSON data to write to file
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setItem(key, data)

Set data in localStorage if available
Parameters:
Name Type Description
key string Storage key
data string Data to store
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