The London Perl and Raku Workshop takes place on 26th Oct 2024. If your company depends on Perl, please consider sponsoring and/or attending.
 / 
Geo-Geocalc-0.01
River stage zero No dependents
/ Geo::Geocalc

NAME

Geo::Geocalc - operations on geographical coordinates.

VERSION

Version 0.01

SYNOPSIS

Geo::Geocalc simple Perl module for coordinates processing. The basic assumptions of this module are: simple, light and clean as possible.

Some of the main functions (code snippets):

    use Geo::Geocalc;

        $distanceInKm = &getDistance($lat1,$lng1,$lat2,$lng2,$R) # calculate distance (km) between two points on Earth.

        $latitudeInDegree = &getLat($lat1,$lng1,$lng2,$distance,$R) # calculate latitude (deg) of the point based on other point and distance on Earth between them.

        $longitudeInDegree = &getLng($lat1,$lng1,$lat2,$distance,$R) # calculate longitude (deg) of the point based on other point and distance on Earth between them.

        &generateKMLPlacemarks($outputKmlFilename, @coordinates); # generate outputKmlFilename.kml with Placemarks based on an array of coordinates (deg) ($lat1, $lng1, $lat2, $lng2, ...)

        &generateKMLPolygons($outputKmlFilename, \%hashOfCoords); # generate outputKmlFilename.kml with Polygons based on an reference to hash of 0 -> @ of coordinates of corners (deg - $lat1, $lng1, $lat2, $lng2 ...) , recommended to use hash generated with generateGridCoordinates function

        &generateGridCoordinates($lat1, $lng1, $lat2, $lng2, $width, \%gridCoordinates, $R); # coordinates of opposite corners on Earth to be covered by the grid, size of grid in km, reference to hash of grid output coordinates and optional, Earth radius.

        ($qLat, $qLng) = &Geo::Geocalc::randomPlacemarkInsidePolygon(@{$gridCoordinates{$sector}}); # generate random place (latitude and longitude values) inside provided Polygon - array of 4 corners coordinates ($lat1, $lng1, $lat2, $lng2, ...)

    ...

SUBROUTINES/METHODS

generateKMLPolygons

generateKMLPlacemarks

randomPlacemarkInsidePolygon

generateGridCoordinates

getDistance

getLat

getLng

getKMLHeader

getKMLClose

getMax

getMin

AUTHOR

Mecin, <mecin at cpan.org>

BUGS

Please report any bugs or feature requests to bug-geo-geocalc at rt.cpan.org, or through the web interface at http://rt.cpan.org/NoAuth/ReportBug.html?Queue=Geo-Geocalc. I will be notified, and then you'll automatically be notified of progress on your bug as I make changes.

SUPPORT

You can find documentation for this module with the perldoc command.

    perldoc Geo::Geocalc

You can also look for information at:

https://github.com/Mecin/geoQGen

and

https://github.com/Mecin/geoQGame

or contact me directly.

ACKNOWLEDGEMENTS

LICENSE AND COPYRIGHT

Copyright 2017 Mecin.

This program is free software; you can redistribute it and/or modify it under the terms of the the Artistic License (2.0). You may obtain a copy of the full license at:

http://www.perlfoundation.org/artistic_license_2_0

Any use, modification, and distribution of the Standard or Modified Versions is governed by this Artistic License. By using, modifying or distributing the Package, you accept this license. Do not use, modify, or distribute the Package, if you do not accept this license.

If your Modified Version has been derived from a Modified Version made by someone other than you, you are nevertheless required to ensure that your Modified Version complies with the requirements of this license.

This license does not grant you the right to use any trademark, service mark, tradename, or logo of the Copyright Holder.

This license includes the non-exclusive, worldwide, free-of-charge patent license to make, have made, use, offer to sell, sell, import and otherwise transfer the Package with respect to any patent claims licensable by the Copyright Holder that are necessarily infringed by the Package. If you institute patent litigation (including a cross-claim or counterclaim) against any party alleging that the Package constitutes direct or contributory patent infringement, then this Artistic License to you shall terminate on the date that such litigation is filed.

Disclaimer of Warranty: THE PACKAGE IS PROVIDED BY THE COPYRIGHT HOLDER AND CONTRIBUTORS "AS IS' AND WITHOUT ANY EXPRESS OR IMPLIED WARRANTIES. THE IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT ARE DISCLAIMED TO THE EXTENT PERMITTED BY YOUR LOCAL LAW. UNLESS REQUIRED BY LAW, NO COPYRIGHT HOLDER OR CONTRIBUTOR WILL BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, OR CONSEQUENTIAL DAMAGES ARISING IN ANY WAY OUT OF THE USE OF THE PACKAGE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.