Tutorial scope

Acceso al Browser

Las funciones del Browser para agregar o borrar ROUTEs

void Browser.addRoute( node fromNode, string fromOut, node toNode, string toIn ), crea un ROUTE entre dos nodos
void Browser.deleteRoute( node fromNode, string fromOut, node toNode, string toIn ), borra un ROUTE entre dos nodos

Las funciones del Browser de creación de contenido:

void Browser.replaceWorld(node newNode ), remplaza el mundo con un nuevo nodo
node Browser.createVrmlFromString(string text ), crea un nuevo nodo a partir de texto con sintaxis VRML
void Browser.createVrmlFromURL(string url, node notifyNode, string notifyIn ), crea un nuevo nodo a partir de texto en una URL, enviandolo como parámetro al evento notifyIn del nodo notifyNode

DEF Button1 Button {. . . url "one.wrl" }
DEF Button2 Button {. . . url "two.wrl" }
DEF Button3 Button {. . . url "three.wrl" }

Shape {
   geometry DEF Label Text {. . . }
}
DEF Loaded Transform {
     translation 1.0 0.0 0.0
     children [ ]
}

DEF Loader Script {
    field SFNode   myself USE Loader
    field MFString   lastUrl ""
    eventIn MFString   loadUrl
    eventIn MFNode   vrmlLoaded
    eventOut MFNode   node_changed
    eventOut MFString   string_changed
    url "vrmlscript:
       function loadUrl( str, ts ) {
          lastUrl = str;
         Browser.createVrmlFromURL(str, myself,'vrmlLoaded');
         string_changed[0] = 'Loading...';
      }
     function vrmlLoaded( nd, ts ) {
        node_changed = nd;
        string_changed[0] = lastUrl[0];
    } "
}
ROUTE Button1.url_changed TO Loader.loadUrl
ROUTE Button2.url_changed TO Loader.loadUrl
ROUTE Button3.url_changed TO Loader.loadUrl
ROUTE Loader.node_changed   TO Loaded.set_children
ROUTE Loader.string_changed TO Label.set_string