[mapguide-users] Re: Ajax Viewer support for touch devices

[psciga]

Hi Nadja,

you are right, HTML is situable for all devices. But I want use some
hardware specifics like menue button or camera. For this I found no (simple)
HTML solutions. Thats's the reason for the Android App.

> ... Probably this solution require more work. ...

Not really. Less then 800 lines of source code (including a lot of comments)
in Basic4Android (B4A). If you are interested, take a look on their 
http://www.basic4ppc.com homepage  and the 
http://www.basic4ppc.com/forum/index.php community . Sorry, it's "only"
Basic, but I like this language.

> ... Which API did you use for this function? Did you make the same with
> HTML solution? ...

In B4A I can use a spcific GPS library. In our browser based Application we
use the HTML 5 geolocation API, as Jackie answered. Here the Code:

###################################


//anfang GPS-Position holen
function getLocation() // called by the menue frame
{
	navigator.geolocation.getCurrentPosition(showLocation, showError,
{timeout:40000, enableHighAccuracy:true});
}

function showError(error) {
	alert(error.code + ' Fehler' + error.message);
}

function showLocation(position)
{
	var hoehe = position.coords.altitude;
	var lat = position.coords.latitude;
	var lon = position.coords.longitude;
	var praez = position.coords.accuracy;
	if(navigator.appName.search("Microsoft") > -1)
	{
		resObjekt = new ActiveXObject("MSXML2.XMLHTTP");
	}
	else
	{
		resObjekt = new XMLHttpRequest();
		sndReq(lat, lon);
	}//if (navigator...)
}

function sndReq(lat,lon)
{
	// Koordinaten holen
	var link = '../autogis/EAAG_MOBIL_TRANS.PHP?x=' + lon + '&y=' + lat;
	resObjekt.open('get', link, true);
	resObjekt.onreadystatechange = handleResponse;
	resObjekt.send(null);
}

function handleResponse()
{
	if(resObjekt.readyState == 4)
	{
		var skalierung = top.ViewerFrame.mapFrame.GetScale();
		var ergebnis = resObjekt.responseText;
		var splitter = ergebnis.split("#");
		var zx = splitter[0] * 1.0;
		var zy = splitter[1] * 1.0;
		alert (zx);
		alert (zy);
		top.ViewerFrame.mapFrame.ZoomToView(zx,zy,skalierung,false);
	}
}

###################################

Calling of EAAG_MOBIL_TRANS.PHP is necessary for coordinate transforming,
because we are working in a specific german coordinate system.

Hope this help you a little bit.

Best Regards - Peter


-----
IBB INGENIEURBÜRO BATTEFELD

AutoGIS mit MapGuide Open Source 

Bad English? German user.
--
View this message in context: http://osgeo-org.1803224.n2.nabble.com/Ajax-Viewer-support-for-touch-devices-tp6163993p6888050.html
Sent from the MapGuide Users mailing list archive at Nabble.com.