NAME¶
Geo::Functions - Package for standard Geo:: functions.
SYNOPSIS¶
use Geo::Functions qw{deg_rad deg_dms rad_deg}; #import into namespace
print "Degrees: ", deg_rad(3.14/4), "\n";
use Geo::Functions;
my $obj = Geo::Functions->new;
print "Degrees: ", $obj->deg_rad(3.14/2), "\n";
CONVENTIONS¶
Function naming convention is "format of the return" underscore
"format of the parameters." For example, you can read the deg_rad
function as "degrees given radians" or "degrees from
radians".
CONSTRUCTOR¶
new¶
The new() constructor
my $obj = Geo::Functions->new();
METHODS¶
deg_dms¶
Degrees given degrees minutes seconds.
my $deg=deg_dms(39, 29, 17.134);
my $deg=deg_dms(39, 29, 17.134, 'N');
deg_rad¶
Degrees given radians.
my $deg=deg_rad(3.14);
rad_deg¶
Radians given degrees.
my $rad=rad_deg(90);
rad_dms¶
Radians given degrees minutes seconds.
my $rad=rad_dms(45 30 20.0);
round¶
Round to the nearest integer. This formula rounds toward +/- infinity.
my $int=round(42.2);
dms_deg¶
Degrees minutes seconds given degrees.
my ($d, $m, $s, $sign)=dms_deg($degrees, qw{N S});
my ($d, $m, $s, $sign)=dms_deg($degrees, qw{E W});
dm_deg¶
Degrees minutes given degrees.
my ($d, $m, $sign)=dm_deg($degrees, qw{N S});
my ($d, $m, $sign)=dm_deg($degrees, qw{E W});
mps_knots¶
meters per second given knots
my $mps=mps_knots(50.0);
knots_mps¶
knots given meters per second
my $knots=knots_mps(25.0);
BUGS¶
Please send to the geo-perl email list.
AUTHOR¶
Michael R. Davis qw/perl michaelrdavis com/
LICENSE¶
Copyright (c) 2006 Michael R. Davis (mrdvt92)
This library is free software; you can redistribute it and/or
modify it under the same terms as Perl itself.
SEE ALSO¶
Geo::Constants Geo::Ellipsoids