How to reload the pois?

[cherry]

I did this :

function handleSceneEvents(type, trackingInformation)

{

if(type && type == arel.Events.Scene.ONTRACKING && trackingInformation[0].getType() == arel.Tracking.LLA_MARKER)

{

//override the GPS of the device with the location encoded in the marker

var lla = trackingInformation[0].getContent();

arel.Scene.setLocation(lla);

//remove the scan information

$('.llaInfo').hide();

$('.filteroptions').show();

if (selected == "Lab"){

//set the POIs visible

arel.Scene.getObject("LeftArrow").setVisibility(true, true, true);

arel.Scene.getObject("T12A203/C").setVisibility(true, true, true);

}

else

if (selected  ==  "Lecture") 

{

arel.Scene.getObject("frontArrow").setVisibility(true, true, true);

arel.Scene.getObject("T12A203").setVisibility(true, true, true);

}

else

if(selected  == "Tutorial"){

arel.Scene.getObject("T12A202").setVisibility(true, true, true);

arel.Scene.getObject("T12A201").setVisibility(true, true, true);

}

else

if(selected  == "Toilet"){

arel.Scene.getObject("T12Toilet").setVisibility(true, true, true);

}

else

{

arel.Scene.getObject("LeftArrow").setVisibility(true, true, true);

arel.Scene.getObject("T12A203/C").setVisibility(true, true, true);

arel.Scene.getObject("frontArrow").setVisibility(true, true, true);

arel.Scene.getObject("T12A203").setVisibility(true, true, true);

arel.Scene.getObject("T12A202").setVisibility(true, true, true);

arel.Scene.getObject("T12A201").setVisibility(true, true, true);

arel.Scene.getObject("T12Toilet").setVisibility(true, true, true);

}

}

}

function activateChange(){

var f = document.getElementById("filter");

        selected = f.options[f.selectedIndex].value;

        alert(selected);

handleSceneEvents();

}

when the button is being submitted, i can see the alert prompt, showing the value that has been selected, but the unwanted pois do not disapper.

is there a way where i can clear the screen at let the pois reload?

Thanks!

Cherry.

[Christin]

Hi Cherry, 

I think you have to set the other POIs (you do not want to be visible) to setVisibility(false,false,false). Or try using the methods "removePoi" and "addPoi"

Cheers, 

Christin
   

--
 
 
 

[cherry]

Hi Christin,

I tried setting other pois as false, but it still does not refresh, as i can still see all the pois. =(

do you have an example of using the methods of remove poi?

Thanks!

Cherry.

[Rainer Lonau]

Hi Cherry,

I've implemented show/hide functions in a LBS channel. Do something like this:

allObjects = arel.Scene.getObjects()

function show() {
for (var i in allObjects) {
        if(allObjects[i] instanceof arel.Object) {
                allObjects[i].setVisibility(true, true, true);
        }
}
}

function hide() {
for (var i in allObjects) {
        if(allObjects[i] instanceof arel.Object) {
                allObjects[i].setVisibility(false, false, false);
        }
}
}

I hope this helps.

Cheers,
Rainer

[cherry]

Hi Rainer,

I have tried it, but it still wont work.

I also tried setting everything to false:

but it still cant remove the objects.

function hide() {

var f = document.getElementById("filter");

selected = f.options[f.selectedIndex].value;

arel.Scene.getObject("LeftArrow").setVisibility(false,false,false);

arel.Scene.getObject("T12A203/C").setVisibility(false,false,false);

arel.Scene.getObject("frontArrow").setVisibility(false,false,false);

arel.Scene.getObject("T12A203").setVisibility(false,false,false);

arel.Scene.getObject("T12A202").setVisibility(false,false,false);

arel.Scene.getObject("T12A201").setVisibility(false,false,false);

arel.Scene.getObject("T12Toilet").setVisibility(false,false,false);

}

function activateChange(){

alert(selected);

handleSceneEvents(type, trackingInformation);

}

currently, i am able to see the alert, that shows the selected value, however the objects does not clear.

by using your method, do we need to create an array?

i tried creating but there is still no change.

THanks!!

Cherry.

[Rainer Lonau]

Hi Cherry,

sorry, right now I can't see where the error could be.

Does the setVisibility work in general? You could try hide a object in the onSceneReady function.

arel.sceneReady(function() {
        try {
                arel.Scene.getObject("T12Toilet").setVisibility(false,false,false);
        } catch (err) {
                alert('hide T12Toilet: '+err);
        }
}

Cheers,
Rainer

[cherry]

Hi Rainer,I tried putting 

arel.Scene.getObject("T12Toilet").setVisibility(true,true,true);

before i scan the marker, and 

arel.Scene.getObject("T12Toilet").setVisibility(false,false,false);

after i scan the marker, but it does not hide it after i scanned the marker.

does this mean that i am not able to set it invisible?

Thanks!

Cherry.