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ntompson
Insufficient significant figures in GPS positions

Hi,

I've noticed that reported positions from my OVMS module are a little coarse. On a map, positions when driving look a little "stair-cased". On investigation, it appears that the OVMS module is emitting GPS location with too few decimal points. For example, from the shell:

OVMS# ​metrics list
...
v.p.latitude                             -44.8962
v.p.location                             Home
v.p.longitude                            144.281
...

It appears OVMS is enforcing 6 significant figures, which means longitude truncates to 3 decimal points, which is not enough for sufficient accuracy. Is there some way I can correct this?

Thanks,

Nick

markwj
markwj's picture
The GPS precision in OVMS is

The GPS precision in OVMS is 6 decimal places. That is what I get on my cars.

Maybe the last digits are zero in your case? Like 44.896200?

ntompson
sorry I've been so slow...

sorry I've been so slow... Sometimes they may be, but it looks more like 6 significant figures than 6 decimal places for me: the reported GPS lat / long is *always* 6 sig figs, not just occasionally. 

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