Comments on: PHP – Calculating Distance Between Two Locations Given Their GPS Coordinates

By: Joe

Joe — Mon, 26 Sep 2011 15:19:06 +0000

Great, now how do we take into account elevation … let’s say we one GPS coord is at the top of Everest, and the second GPS coord is one mile away by projection, but at the base of Everest… do we simply multiple by cos of the angle created by the two altitudes?

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links for 2011-02-21 « Kaigani’s Arbor Vitae — Tue, 22 Feb 2011 00:06:50 +0000

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Tue, 20 Jul 2010 11:11:00 +0000

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By: Tom Delagado

Tom Delagado — Wed, 14 Jul 2010 14:55:46 +0000

Hello just thought i would tell you something.. This is twice now i’ve landed on your blog in the last 3 days searching for totally unrelated points. Spooky or what?

By: Ordnance Survey 1:50 000 Gazetteer import and reuse « Portable Antiquities Scheme blogs

Tue, 25 May 2010 10:43:01 +0000

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Ordnance Survey 1:50 000 Gazetteer import and reuse « Central Unit blogs — Mon, 24 May 2010 22:36:31 +0000

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By: cristian l

cristian l — Mon, 24 May 2010 07:16:18 +0000

#!/usr/bin/perl
use LWP::Simple;
use XML::Simple; # I.m just a simple guy.
use Data::Dumper;

my $f = get “http://maps.google.com/maps?q=from+45.462330,-73.628195+to+45.462343,-73.628150&output=kml”;
$f =~ m/Distance: ([0-9.,-]+)(.+m )/;
$distance = $1;
@v2 = split(/;/,$2);
$um=$v2[1];
print $distance;
print $um;

print “\n\n”;

my $f = get “http://maps.google.com/maps?q=from+45.462330,-73.628195+to+45.489785,-73.650043&output=kml”;
$f =~ m/Distance: ([0-9.,-]+)(.+m )/;
$distance = $1;
@v2 = split(/;/,$2);
$um=$v2[1];
print $distance;
print $um;
print “\n\n”;

By: Leann Musselwhite

Leann Musselwhite — Wed, 10 Mar 2010 22:56:50 +0000

Really great article – I was heading for a similar article which I will probably still write, but from a slightly different angle. Thanks for sharing this with your readers…Obviously a lot of others appreciate it too!

By: chamara

chamara — Fri, 12 Feb 2010 09:22:36 +0000

I want to calculate distance between two pints using AWK programming.If you know about it please send me amessege
thank you

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By: Krzyzmo

Krzyzmo — Fri, 09 Oct 2009 22:06:57 +0000

Need some help answering the following question I read on urbansurvival.com…..I am ok with math, but not this much, lol Backround: There was a recent cloud formation over Russia that looked like a hole in the sky, and multiple major earthquakes on the Pacific plate. Here is the unanswered question from the site: Is there a correlation between ‘holes in the sky” and quakes? Too early to tell, that’s for sure. Let me see, here: Moscow is 55.75 North by 37.6 East and the quake epicenters can be found from USGS here, so with a little high powered math, if this hole in the sky stuff is real, we should be able to work the problem backwards (as with a bullet hole through a window and into an interior wall, right?) and figure out who is shooting at us.

It would be interesting to see where this all points to.

Krzyzmo

By: Gowtham

Gowtham — Tue, 08 Sep 2009 11:53:35 +0000

Good to hear [but sorry for delayed response from my end though]

By: Goran

Goran — Tue, 08 Sep 2009 11:51:13 +0000

10x for the reply, but I’ve already manage it.

take a look: http://travel2macedonia.com.mk/travel-to-macedonia/destinations/skopje/sights-to-visit

Regards,

By: Gowtham

Gowtham — Tue, 08 Sep 2009 11:49:07 +0000

I can try to take a look at it – can you please send me [parts of] the query where you are using this ?

By: Gowtham

Gowtham — Tue, 08 Sep 2009 11:48:13 +0000

There are 60 nautical miles per degree separation of longitudes. And one nautical mile is same as 1.1515 statute (regular) mile. Since we measure distances in regular miles,

$distance = $distance * 60 * 1.1515

makes its appearance.

By: Robert

Robert — Tue, 08 Sep 2009 01:16:28 +0000

Nice little forumla and explaination.
In your SLC formular on line 19: $distance = $distance * 60 * 1.1515
What is the “1.1515″ supposed to represent?

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By: Goran

Goran — Thu, 20 Aug 2009 14:30:26 +0000

Great formulars…

I have even converted into a km. This formula is in miles as I think.

However I have tried to insert this into a query which I run to get sights out of the DB and becase one function can be called once I am having a problems… Any solutions??

Regards,

By: Gowtham :: Brain Dump v1.0 » MySQL – Finding Locations Nearest To A Given Pair Of GPS Coordinates

Sat, 08 Aug 2009 17:31:31 +0000

[...] PHP – Calculating Distance Between Two Locations Given Their GPS Coordinates [...]

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By: Vikas Argod

Vikas Argod — Tue, 04 Aug 2009 19:44:34 +0000

Adding to my last note: you can use LAT,LON in place of ZIP codes and you will still get driving distances

Sorry for a small typo: $f =~ m/Distance: ([0-9.,-]+)/;

By: Vikas Argod

Vikas Argod — Tue, 04 Aug 2009 19:42:59 +0000

Good one! Few days back,i wanted to build a web based system given GPS coordinates, but i wanted driving distance and not just the distance. I came up with two options:
1. Using GoogleMaps API i can build a mashup. This is useful as i will have access to google map features. I wrote a simple javascript (thanks to Google and its API). No big deal infact
2. Since all i needed was only driving distance, I used the following perl code:

#!/usr/bin/perl

use LWP::Simple;
use XML::Simple; # I’m just a simple guy.
use Data::Dumper;

$a = “16801″;
$b = “61801″;

my $f = get “http://maps.google.com/maps?q=from+{$a}+to+{$b}&output=kml”;
$f =~ m/Distance: ([0-9.-]+)/;
$distance = $1;
print $distance;