Why is the onviewchange event disabled ?

    Hi,

    I've implemented a compas on my VT ; the code is inspired from the "compass" included in the KRPano examples.

    I use the "onviewchange" event to update the compass heading,

    It works fine in most cases, except during "moveto" and "movetohotspot" actions ;

    I've tried setting "nonblocking" to true in the moveto actions, but it didn't change anything...

    Any suggestions ?

    Thanks for your help

    Philippe

    oops, in my initial post I mentionned "moveto" and "movetohotspot" actions. Its a misprint *sad* , I meant "lookto" and "looktohotspot" instead ; and the only one of these with a non blocking parameter is "lookto".

    But anyway, the problem is still there, and I have no explanation yet...

    try downloading the newest krpano.swf and/or try an older version. Make an example with just the onviewchange event

    Code
    <krpano onstart="showlog(); moveto(90,0);" >
<events onviewchange="trace(view.hlookat)" />
<preview type="grid()" />
</krpano>

    I think I'm slowly going somewhere :

    Code
    lookto(x,y,field,smooth(100,100,100))

    is blocking so that view.hlookat is not updated until lookto is done

    Code
    lookto(x,y,field,smooth(100,100,100),true,true);
nextaction();

    is nonblocking : view.hlookat is updated while lookto is running.

    However, in this case, since it is nonblocking, nextaction() is executed while the lookto is running, so that it's a mess. I've tried :

    Code
    lookto(x,y,field,smooth(100,100,100),true,true,WAIT)

    to wait for the end of the lookto action but it doesn't work.

    right now the only solution I have is :

    Code
    lookto(x,y,field,smooth(100,100,100),true,true); 
delayedcall(2.0,nextaction());


    but that's really not satisfying, because I don't know what the delay must be : it depends on how long the lookto action could last, and that is unknown.

    What I nead is some way to wait until the lookto action is ended.

    Right now I've no idea how to do this *confused*

    I've found the answer ; its so simple I feel stupid about it *cry* :

    Of course, the "donecall" of the nonblocking lookto is called when the action is .... done !

    So that the answer is

    Code
    lookto(x,y,field,smooth(100,100,100),true,true,nextaction());


    and this works perfectly : nextaction() is run only when lookto is finished, and view.hlookat is updated since lookto is now nonblocking.

    Now I whish there was a nonblocking looktohotspot ; well I'll have to rewrite the code anyway, so...

    Thanks for your stimulating help, Zephyr

    Philippe

    I sometime throw in a delayedcall(0, doaction()); when actions start to soon.

    about the looktohotspot:

    %1 = hotspot name
    %2 = field of view

    Code
    <action name="lookto_hotspot">
lookto(get(hotspot[%1].ath),get(hotspot[%1].atv), %2,smooth(100,100,100),true,true,nextaction());
</action>

    or differently you add a third parameter with the nextaction() in it or have the nextaction as property in the hotspot.

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