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Google Maps に大量のマーカを表示する - Too Many Markers!

Too Many Markers! - Google Maps API — Google Developers https://developers.google.com/maps/articles/toomanymarkers

のメモです。

Introduction

Some applications are required to display a large number of locations or markers. Despite the v3 JavaScript API's significant improvement to performance, naively plotting thousands of markers on a map can quickly lead to a degraded user experience. Too many markers on the map cause both visual overload and sluggish interaction with the map.

	namespace :assets do

	desc "Check that all assets have valid encoding"
	task :check => :environment do

	paths = ["app/assets", "lib/assets", "vendor/assets"]
	extensions = ["js", "coffee", "css", "scss"]

	paths.each do \|path\|
	dir_path = Rails.root + path