def __init__(self, _name, _location, _prefix, _ext,
_left_long, _top_lat,
_img_width, _img_height, _xscale, _yscale,
_numdigits, _usedash, _latfirst):
"""arguments:
name -- user-visible name of the collection
location -- directory on disk where the maps reside
prefix -- initial part of each maplet filename
ext -- filename extension including the dot, e.g. .jpg
left_long -- longitude of the left edge
top_lat -- latitude of the top edge
img_width -- width of each maplet in pixels
img_height -- height of each maplet in pixels
xscale -- pixels per degree longitude
yscale -- pixels per degree latitude
numdigits -- number of digits in x and y file specifiers
usedash -- Boolean, use a dash between x and y in filenames?
latfirst -- Boolean, is latitude the first of the two numbers?
"""
TiledMapCollection.__init__(self, _name, _location,
_img_width, _img_height, )
self.prefix = _prefix
self.numdigits = _numdigits
self.usedash = _usedash
self.ext = _ext
self.latfirst = _latfirst
self.img_width = _img_width
self.img_height = _img_height
self.left_longitude = _left_long # Left of 00-00 image
self.top_latitude = _top_lat # Top of 00-00 image
self.xscale = float(_xscale) # Pixels per degree
self.yscale = float(_yscale) # Pixels per degree
def __init__(self, _name, _location, _series, _tile_w, _tile_h,
_ser7prefix="012t", _ser15prefix="024t", _img_ext=".gif"):
"""arguments:
name -- user-visible name of the collection
location -- directory on disk where the maps reside
series -- initial series to use, 7.5 or 15 minutes of arc.
tile_w -- width of each maplet in pixels
tile_h -- height of each maplet in pixels
img_ext -- filename extension including the dot, e.g. .jpg
ser7prefix -- prefix for tile files implementing the 7.5-min series
ser15prefix -- prefix for tile files implementing the 15-min series
"""
TiledMapCollection.__init__(self, _name, _location, _tile_w, _tile_h)
self.set_series(_series)
self.ser7prefix = _ser7prefix
self.ser15prefix = _ser15prefix
self.img_ext = _img_ext
# _correction because Topo1 maps aren't in WGS 84.
# Right now these numbers are EMPIRICAL and inaccurate.
# Need to do them right!
# http://www.ngs.noaa.gov/cgi-bin/nadcon.prl says the correction
# in the Mojave area from NAD27 to NAD84 (nobody converts to
# WGS84, alas) should be -0.05463', 2.99014' (-1.684m, 75.554m)
self.lon_correction = 0 # 0.032778 / 1000
self.lat_correction = 0 # -1.794084 / 1000
def __init__(self, _name, _location, _series, _tile_w, _tile_h,
_ser7prefix="012t", _ser15prefix="024t", _img_ext=".gif"):
"""arguments:
name -- user-visible name of the collection
location -- directory on disk where the maps reside
series -- initial series to use, 7.5 or 15 minutes of arc.
tile_w -- width of each maplet in pixels
tile_h -- height of each maplet in pixels
img_ext -- filename extension including the dot, e.g. .jpg
ser7prefix -- prefix for tile files implementing the 7.5-min series
ser15prefix -- prefix for tile files implementing the 15-min series
"""
TiledMapCollection.__init__(self, _name, _location, _tile_w, _tile_h)
self.set_series(_series)
self.ser7prefix = _ser7prefix
self.ser15prefix = _ser15prefix
self.img_ext = _img_ext
# _correction because Topo1 maps aren't in WGS 84.
# Right now these numbers are EMPIRICAL and inaccurate.
# Need to do them right!
# http://www.ngs.noaa.gov/cgi-bin/nadcon.prl says the correction
# in the Mojave area from NAD27 to NAD84 (nobody converts to
# WGS84, alas) should be -0.05463', 2.99014' (-1.684m, 75.554m)
self.lon_correction = 0 # 0.032778 / 1000
self.lat_correction = 0 # -1.794084 / 1000
def __init__(self, _name, _location, _ext,
_img_width, _img_height, _init_zoom,
_download_url=None, maxzoom=19,
reload_if_older=None, attribution=None):
"""arguments:
name -- user-visible name of the collection
location -- directory on disk where the maps reside
ext -- filename extension including the dot, e.g. .jpg
img_width -- width of each maplet
img_height -- height of each maplet
init_zoom -- default initial zoom level
download_url -- try to download missing maplets from here
reload_if_older: if set, reload tiles older than this (in days)
"""
TiledMapCollection.__init__(self, _name, _location,
_img_width, _img_height)
self.ext = _ext
self.img_width = _img_width
self.img_height = _img_height
self.zoomlevel = _init_zoom
self.powzoom = 2.0 ** self.zoomlevel # to avoid re-re-calculating
self.download_url = _download_url
self.maxzoom = maxzoom
self.Debug = False
# If reload_tiles is set, it should be set to a Unix datestamp,
# e.g. from when the program was started.
# Any file older than that will be re-downloaded.
# By default, never reload tiles.
if reload_if_older:
self.reload_tiles = time.time() - reload_if_older * 60*60*24
else:
self.reload_tiles = False
if attribution:
self.attribution = attribution
else:
self.attribution = "Map tiles copyright Openstreetmap.org"
self.location = os.path.expanduser(self.location)
# Handle ~ format for location
# If we're download-capable, we'd better have a directory
# to download to, so make it if it's not there already:
if self.download_url and not os.access(self.location, os.W_OK):
# XXX wrap in a try, show user-visible error dialog!
os.makedirs(self.location)
# Call zoom so we set all scales appropriately:
self.zoom(0)
def __init__(self, _name, _location, _prefix, _ext, _left_long, _top_lat,
_img_width, _img_height, _xscale, _yscale, _numdigits,
_usedash, _latfirst):
"""Create a generic map collection.
Parameters
----------
name : str
user-visible name of the collection
location : str
directory on disk where the maps reside
prefix : str
initial part of each maplet filename
ext : str
filename extension including the dot, e.g. .jpg
left_long : float
longitude of the left edge
top_lat : float
latitude of the top edge
img_width : int
width of each maplet in pixels
img_height : int
height of each maplet in pixels
xscale : float
pixels per degree longitude
yscale : float
pixels per degree latitude
numdigits : int
number of digits in x and y file specifiers
usedash : bool
use a dash between x and y in filenames?
latfirst : bool
is latitude the first of the two numbers?
"""
TiledMapCollection.__init__(
self,
_name,
_location,
_img_width,
_img_height,
)
self.prefix = _prefix
self.numdigits = _numdigits
self.usedash = _usedash
self.ext = _ext
self.latfirst = _latfirst
self.img_width = _img_width
self.img_height = _img_height
self.left_longitude = _left_long # Left of 00-00 image
self.top_latitude = _top_lat # Top of 00-00 image
self.xscale = float(_xscale) # Pixels per degree
self.yscale = float(_yscale) # Pixels per degree
