POI Updates and Downloads Forum
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| Posted by steve.wilton1 download size I'm a little shocked at the small size of the POI files. I thought they would be heaps larger. |
| Posted by mark.neller POI file size csv files are relatively small, as they don't have all the unnecessary formatting. |
| Posted by adam_d_richardson CSV only small The CSV files are tiny as they are just flat text separated by comma's. Its a great way of storing and sharing spreadsheet data without all the extra bulk that comes with applications such as Excel |
| Posted by veyder It could be even smaller It could be actually even smaller - I've recently found out about NAC (aka Universal Address) which store the geographical positions in the form of two strings of letters and digits (e.g. H5Q2R R48PF - Eiffel Tower). The brilliant thing about this geocoding system is that it is almost indefinitely scalable - the more precision you need, the more digits/letters you use as each character represents a fraction of the area described by the previous characters (i.e. H5Q2R is contained within H5Q2, which is contained in H5Q and so on.) In a real-life situations you wouldn't need more than 10 characters (as 5+5 characters give you the precision of ~3 ft). |