Benjamin Gudehus hastebrot

The difference between XYZ and TMS tiles and how to convert between them

Lots of tile-based maps use either the XYZ or TMS scheme. These are the maps that have tiles ending in /0/0/0.png or something. Sometimes if it's a script, it'll look like &z=0&y=0&x=0 instead. Anyway, these are usually maps in Spherical Mercator.

Good examples are OpenStreetMap, Google Maps, MapBox, MapQuest, etc. Lots of maps.

Most of those are in XYZ. The best documentation for that is slippy map tilenames on the OSM Wiki, and Klokan's Tiles a la Google.

The introduction to Reactive Programming you've been missing

(by @andrestaltz)

So you're curious in learning this new thing called Reactive Programming, particularly its variant comprising of Rx, Bacon.js, RAC, and others.

Learning it is hard, even harder by the lack of good material. When I started, I tried looking for tutorials. I found only a handful of practical guides, but they just scratched the surface and never tackled the challenge of building the whole architecture around it. Library documentations often don't help when you're trying to understand some function. I mean, honestly, look at this:

Rx.Observable.prototype.flatMapLatest(selector, [thisArg])

Projects each element of an observable sequence into a new sequence of observable sequences by incorporating the element's index and then transforms an observable sequence of observable sequences into an observable sequence producing values only from the most recent observable sequence.

	import javafx.application.Application;
	import javafx.fxml.FXMLLoader;
	import javafx.scene.Scene;
	import javafx.scene.layout.Pane;
	import javafx.stage.Stage;

	import java.io.IOException;

	/**
	* Main application class.

	import javafx.application.Application;
	import javafx.beans.property.DoubleProperty;
	import javafx.beans.property.ObjectProperty;
	import javafx.beans.property.ReadOnlyObjectProperty;
	import javafx.beans.property.SimpleObjectProperty;
	import javafx.beans.value.ChangeListener;
	import javafx.beans.value.ObservableValue;
	import javafx.collections.FXCollections;
	import javafx.collections.ObservableList;
	import javafx.event.EventHandler;

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	<title>Mobile Patent Suits</title>
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