Increase GeoPosition precision from WDF Location Interpreter?

Questions
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1

I have been using Mathematica V12 to plot breadcrumb coordinates from a GPS tracker. I convert these to GeoPositions using the Interpreter function, as shown in the code snippet. However, the Location Interpreter seems to have a fixed precision which is too coarse: I need 4-5 digits after the decimal point, and the returned GeoPosition has a precision of 1-2 digits.

I don’t see an option or other handle to change the precision here. Anyone run into this?

Interpreter["Location"]["(36.3322280727381,-108.913240371752)"]

GeoPosition[{36.4167, -108.901}]

GeoInterpQuestion.nb (1.75 KB)

2

Hey Steve, how are you?
I tried some things here.. and I found that you can change the interpreter to GeoCoordinates and set the precision using `x (x = the precision number) after the latitude and longitude. Look the example:

Interpreter["GeoCoordinates"]["(36.3322280727381`11,-108.913240371752`11)"]

geoposition.png

3

Hello Estevao:

Thank You! - Yes that does the job, and I was unaware of a precision operator of that form. Strangely, the same operator does not work when I use it for “Location”.

With breadcrumbs, I’ll have a large array of coordinates, for which I’ll need to append this operator to each element. However I’m sure Mathematica has a way to handle such an array operation.

Thanks again,

Steve

4

So here’s how to do this for arrays of coordinates:

SetPrecision[
Interpreter[
“GeoCoordinates”][{“(36.3322280727381,-108.913240371752)”,
“(37.332280727381,-106.91320371752)”}], 9]

{GeoPosition[{36.3322281, -108.913240}],
GeoPosition[{37.3322807, -106.913204}]}

GeoInterpPrecArray.nb (2.31 KB)

5

Nice, even better than dealing with the arrays.