Most of the projected coordinate systems we use to create maps of the World use the Greenwich meridian as the prime meridian. From time to time my clients ask me whether this can be changed and how to make a map centered on the International Date Line rather than the Greenwich meridian or how to center the ArcMap’s data frame on Australia. Let’s have a look at how to achieve this in ArcGIS for Desktop.
To add some fun to this task let’s also rotate the map upside down so that Australia will be displayed on top of the World. I’m sure that most of you saw The Upside Down World Map, which is very popular among tourists and even I have one hanging on the wall at home. So how did they make this map?