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lib/Geo/GoogleMaps/OffsetCenter.pm  view on Meta::CPAN

 | +-----------------------+B                          |
 | |                       |                           |
 | |  Lorem ipsum          |                           |
 | |                       |           Map Area        |
 | |                       |                           |
 | |                       |                           |
 | |                       |                           |
 | +-----------------------+                           |
 +-----------------------------------------------------+

Box A is your full map area, and box B is an overlay containing text. Box B is
considered the occlusion in this case.

This means the effective map area is the region to the right, even though map
tiles need to be rendered below box A. There are many display situations where
this might be necessary:

=over 4

=item *

The overlay is translucent, and map tiles are visible beneath it.

=item *

The overlay does not touch the edges of the map it overlays, and so it needs to
be framed by map tiles.

=back

This module will allow you to do an offset of a given latitude/longitude under
different circumstances.

There are 2 prevailing techniques in this module. By specifying a left-bound
occlusion, and by specifying pixel coordinated on your image.