Interesting. Iâm interested with such tools too. I ask students to do gps point collection from mobile (Cordova) and process them in pharo to detect if they enter known places. I wonder if a proper gps point class would be useful. Iâd like to record also the precision. Cheers, Cedrick
Le 4 déc. 2018 à 11:15, Alistair Grant <akgrant0710@gmail.com> a écrit :
Hi Sven,
Thanks. This is just for me playing around with my photo collection, i.e. find all photos from a particular location, i.e. within a specified distance of a point. Also maybe add GPS coordinates to some photos.
Thanks again, Alistair
On Tue, 4 Dec 2018 at 11:04, Sven Van Caekenberghe <sven@stfx.eu> wrote:
Hi Alistair,
On 4 Dec 2018, at 10:21, Alistair Grant <akgrant0710@gmail.com> wrote:
Hi,
Does anyone know of a library for processing GPS coordinates?
What I'm looking for are things like:
- Parsing from and printing to various string formats (HMS, NESW, decimal) - Distance between two points - etc.
Thanks, Alistair
We've got some elementary stuff based on WGS84 coordinates as points. For example,
T3GeoTools distanceBetween: 5.33732@50.926 and: 5.49705@50.82733. T3GeoTools bearingFrom: 5.33732@50.926 to: 5.49705@50.82733. T3GeoTools destinationFrom: 5.33732@50.926 bearing: 45 distance: 2500. T3GeoTools centroidOf: { 5.48230@50.82249. 5.49523@50.81288. 5.50138@50.82008. 5.50228@50.82595. 5.49265@50.82560. 5.48230@50.82249 }. T3GeoTools is: 5.33732@50.92601 inside: { 5.48230@50.82249. 5.49523@50.81288. 5.50138@50.82008. 5.50228@50.82595. 5.49265@50.82560. 5.48230@50.82249 }.
This is not open source, but it is not rocket science either (just implementations of public algorithms).
We have less need for special conversions, we do them case by case when they occur.
What are you planning to do ?
Sven