Hi

I´ve just figured out the following problem.
If I generate the distance between two points then the amount of Km or Miles is wrong.
I´ve checked this out by using google earth.
If I fly on the coordinates and measure between the two points, Google Earth tells me a distance which is always lower than the given by location. Partial the distance given by Google Earth is less than the half of the given by location!!

Whats that?

If the distance generating isn´t trustable you shouldn´t give it to the community !!

Greets

Uhu

Comments

jhuckabee’s picture

jhuckabee commented

Greetings Uhu,

The beauty of open source projects is when something doesn't work to your satisfaction you can always get under the hood, see what's going on, and make it better. If that's something you're not able to do on your own, then bashing the project certainly isn't the way to go about getting it fixed.

I'm using 6.x-3.0-rc2 and the distances I've seen calculated with this module seem to be right on (+/- 1 or 2 km) with what Google Earth gives. Can anyone else confirm the validity of the distances calculated using this module?

Regards,
Josh

yesct’s picture

yesct commented
Title: Distance Generating isn´t secure » Distance Generating isn´t correct (proximity distance does not match google earth distance)
Issue tags: +Location proximity view

ok. I was trying to check this, and first I did google maps, for direction between my points, and that was more than the proximity filter, but I figure it has to be more, because google maps does not do "as the crow flies".

how do you get google earth to tell you the distance between two points? I did fly to a lat/long, and another lat/long, but I dont see how to get the distance between the points. Thanks.

jeanpierre’s picture

jeanpierre commented

I use the Google Maps api method (in javascript) :

distanceFrom();

to measure the distance beetween two points markerA and markerB : 

markerA.getLatLng().distanceFrom( markerB.getLatLng());

Hope this helps.
--
Jean-Pierre

yesct’s picture

yesct commented
Priority: Critical » Normal
Status: Active » Postponed (maintainer needs more info)

would someone please try this in the latest dev version.
Also, use a clean install and post exactly the steps to reproduce the problem. Share your exact 2 points with us, lat and long. So we can all work, comparing the same data. Thanks.

yesct’s picture

yesct commented
Status: Postponed (maintainer needs more info) » Closed (fixed)

No response for a long time, please post back and set status to active if there is still a problem.
Also, I think there were some fixed committed on dateline and a math function valid values that might have fixed this.