Displaying maps crossing the dateline

[russm...@gmail.com]

Hi – newbie question

I need to create maps which display features on bioth sides of the dateline (eg. The New Zealand EEZ)

Currently using NZGD2000 & WGS84 but anything with a longitude to the east of 180ºW appears waaay across to the left.

How do I get QGIS to show me both sides of 180º contiguously?

 

Many thanks

 

Russ Mincher

[Jonah Sullivan]

One way to do it is to use a fake longitude domain, going from 0 to 360 instead of -180 to +180. You can use a QGIS plugin to convert your data to this longitude domain:

https://plugins.qgis.org/plugins/GeoWrap/

Another way to do it is to use a fancy projection called WGS 84 / PDC Mercator, EPSG:3832. This projection usually works, but sometimes there will be some pretty obvious geometry errors.

There isn't a great solution, but try these out and see what you think.

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[russm...@gmail.com]

Ngā mihi nui mō āu tohu e hoa

I’ll give both suggestions a go thanks

R

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