Geo::Functions(3pm) User Contributed Perl Documentation Geo::Functions(3pm)

# 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');
```

```  my \$deg=deg_rad(3.14);
```

```  my \$rad=rad_deg(90);
```

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/