Autodesk Forge 查看器 - 如何在 model 加载完成后触发事件？

Question

How do I fire an event after model loading is complete?

I created the "basicSetting" function below.

function basicSetting(){
    viewer.setLightPreset(1);
    viewer.setQualityLevel(false, false);
    viewer.setGhosting(true);
    viewer.setGroundShadow(false);
    viewer.setGroundReflection(false);
    viewer.setEnvMapBackground(false);
    viewer.setProgressiveRendering(true);
}   

And I applied it to the "onDocumentLoadSuccess" function.

But it didn't work.

Help!

Answer 1

You can use the GEOMETRY_LOADED_EVENT as per this link and use it like this after you have initialised a viewer.

In typescript (using forge-typings)

this.viewer.addEventListener(Autodesk.Viewing.GEOMETRY_LOADED_EVENT, (x) => 
{ 
    basicSetting();
}

Or if you wanna be extra save and make sure the function is never called elsewhere, just remove it and place its contents in the event callback.

this.viewer.addEventListener(Autodesk.Viewing.GEOMETRY_LOADED_EVENT, (x) => 
{ 
    this.viewer.setLightPreset(1);
    this.viewer.setQualityLevel(false, false);
    this.viewer.setGhosting(true);
    this.viewer.setGroundShadow(false);
    this.viewer.setGroundReflection(false);
    this.viewer.setEnvMapBackground(false);
    this.viewer.setProgressiveRendering(true);
}

Not sure in which languages you are developing but it should be pretty simular !

Answer 2

You can use a promise waiting for viewer loading finish like as:

var loadedPromise = new Promise((resolve, reject) => {
var listener = function (event) {
    baseViewer.removeEventListener(
        Autodesk.Viewing.GEOMETRY_LOADED_EVENT, 
            listener
        );
        resolve();
}
baseViewer.addEventListener(
    Autodesk.Viewing.GEOMETRY_LOADED_EVENT,
    listener
);

}); await loadedPromise;