MapGuide zoomtoview

bulatova99 · ‎10-10-2013

Hi,

I created a Weblayout in Mapguide. I would like zoom to coordinates, when I open my map in browser with x and y coordinates and scale parameters. (Here is my link: http://localhost:8008/mapguide/mymap/index.php?x=640221&y=560647&scale=1000)
How can I use 'zoomtoview' function in this index.php.

Here is my index.php

<?php
$installDir =
'C:\\Program Files\\OSGeo\\MapGuide\\';
$extensionsDir = $installDir . 'Web\\www\\';
$viewerDir = $installDir . 'mapviewerphp\\';

include $viewerDir . 'constants.php';
include $viewerDir . 'common.php';

MgInitializeWebTier($extensionsDir . 'webconfig.ini');

$site = new MgSite();
$site->Open(new MgUserInformation("Anonymous", ""));

$sessionId = $site->CreateSession();
$webLayout = "Library://mylayout/layouts/webindex.WebLayout";

$x = $_REQUEST["x"];
$y = $_REQUEST["y"];
$scale = $_REQUEST["scale"];
//echo "($x.$y.$scale)"
?>

<html>
<head>
<title>mylayout</title>
</head>
<body marginheight="0" marginwidth="0">
<iframe id="viewerFrame" width="100%" height="100%" frameborder=0
scrolling="no"
src="/mapguide/mapviewerajax/?SESSION=<?= $sessionId ?>&
WEBLAYOUT=<?= $webLayout ?>"></iframe>
</html>

I'm a beginner in PHP and javascript.

Can anyone suggest solutions?
Thanks,

gluckett · ‎11-15-2013

You can do it a number of ways. I like the idea of loading the map first and then once it is loaded, change the zoom.

I would do something like what is seen at: http://trac.osgeo.org/mapguide/wiki/CodeSamples/JavaScript/AJAXViewerEventHooking

except in the OnMapInitialized() you can use the followining in your PHP page.

// Map loaded handlerfunction OnMapInitialized() {
    // Map has been initialized now we're off to the races.     
     var x =<?= $_REQUEST["x"]; ?>;
     var y =<?= $_REQUEST["y"]; ?>;
     var scale = <?= $_REQUEST["scale"]; ?>;
     viewerFrame. ZoomToView(x,y,scale,true);

}

I would look at too: https://osgeo.org/webdav/mapguide/docs/viewerapi/viewerapi.html for the JAVASCRIPT API

Also, your x and y might need parseFloat(x) and parseFloat(y) to make sure they are Floats.

MapGuide zoomtoview

MapGuide zoomtoview

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