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lib/HTML/GMap/Files.pm  view on Meta::CPAN

            ], "#ff8b04", 2);
        map.addOverlay(polyline);
        map.addOverlay(polyline); // Every other polyline is skipped, a potential bug; observe 8/10/07       
    }

// document.getElementById("debug").innerHTML = 'zoom:' + map.getZoom();

    return 1;
}

// Start refresh (clear overlays and messages)
function startRefresh() {
    // Clear existing overlays
    map.clearOverlays();

    document.getElementById("status").innerHTML         = 'Moving ...';
    document.getElementById("legend").innerHTML         = '';
    document.getElementById("legend_message").innerHTML = '';
    document.getElementById("details").innerHTML        = '';
}

// Refresh display (clear overlays, send an AJAX request, process request)
function doRefresh(event) {
    var drawGrid = varStore.drawGrid;

    // Clear existing overlays
    map.clearOverlays();

    document.getElementById("status").innerHTML = "Refreshing ...";

    // Construct URL based on coordinates and form values
    var requestUrl = constructUrl();

    // Query database, pass results on for parsing
    GDownloadUrl(requestUrl, processRequest); // No parentheses

lib/HTML/GMap/Tutorial.pm  view on Meta::CPAN

=head1 NAME

HTML::GMap::Tutorial - HTML::GMap distribution tutorial

=head1 DESCRIPTION

This is the tutorial for HTML::GMap module.

=head1 INTRODUCTION

Google Maps service provides an AJAX-based geographic map and a Javascript API that allows operations such as overlaying images and lines on the geographic map. The map can be dragged using the mouse.

HTML::GMap wraps around the Google Maps API and provides a generic Perl infrastructure that can be used to easily build interactive web applications that display geographic data stored in a database. HTML::GMap handles HTML page rendering, graph/icon...

For example, let's say that you have a database that contains locations of stores that belong to a grocery store chain. Each row in your database contains the name of the store, its geographic location (a latitude and a longitude) and some additional...

HTML::GMap can be used to view data cumulatively using pie charts as well. For example, let's say that you have a database of physicians. Each row in your database contains the name of the physician, his/her geographic location (a latitude and a long...

=head1 DESIGN

The setup described above require two types of server-side functionality. The first one generates the initial HTML page. A second functionality is needed to respond to client requests initiated by dragging the map. The HTML::GMap module combines thes...