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Shell Programming and Scripting
PERL foreach & open not working together
Post 302608325 by balajesuri on Saturday 17th of March 2012 03:09:00 AM
03-17-2012
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LEARN ABOUT DEBIAN
map_slippy_fetcher
map::slippy::fetcher(3tcl) Mapping utilities map::slippy::fetcher(3tcl) __________________________________________________________________________________________________________________________________________________ NAME
map::slippy::fetcher - Accessing a server providing tiles for slippy-based maps SYNOPSIS
package require Tcl 8.4 package require Tk 8.4 package require img::png package require map::slippy package require map::slippy::fetcher ?0.2? ::map::slippy::fetcher fetcherName levels url fetcherName levels fetcherName tileheight fetcherName tilewidth fetcherName get tile donecmd _________________________________________________________________ DESCRIPTION
This package provides a class for accessing http servers providing tiles for slippy-based maps. API
::map::slippy::fetcher fetcherName levels url Creates the fetcher fetcherName and configures it with the number of zoom levels supported by the tile server, and the url it is listening on for tile requests. The result of the command is fetcherName. METHODS fetcherName levels This method returns the number of zoom levels supported by the fetcher object, and the tile server it is accessing. fetcherName tileheight This method returns the height of tiles served, in pixels. fetcherName tilewidth This method returns the width of tiles served, in pixels. fetcherName get tile donecmd This is the main method of the fetcher, retrieving the image for the specified tile. The tile identifier is a list containing three elements, the zoom level, row, and column number of the tile, in this order. The command refix donecmd will be invoked when the fetcher either knows the image for the tile or that no image will forthcoming. It will be invoked with either 2 or 3 arguments, i.e. [1] The string set, the tile, and the image. [2] The string unset, and the tile. These two possibilities are used to either signal the image for the tile, or that the tile has no image defined for it. REFERENCES
[1] http://wiki.openstreetmap.org/wiki/Main_Page KEYWORDS
http, location, map, server, slippy, tile, url, zoom map 0.2 map::slippy::fetcher(3tcl)