/*
        This JScript example illustrates how to use the FCurve.RemoveKeysAtIndex method
        to remove keys from the entire curve or interval on the fcurve.
*/
// Create a null
Application.NewScene( "", false );
var nullobj = ActiveSceneRoot.AddNull();
var empty;
// Add a custom property set to the null
var cpset = nullobj.AddCustomProperty( "CustomPSet" );
var x = cpset.AddParameter( "X", siDouble, empty, siAnimatable, "X", "X", empty, 0.25, 0, 10 );
var y = cpset.AddParameter( "Y", siInt4, empty, siAnimatable, "Y", "Y", empty, 5, 0, 100 );
// Create some fcurves
var fc1 = x.AddFCurve();
var fc2 = y.AddFCurve();
// Add keys to the fcurves
fc1.Resample();
fc2.Resample();
// Lock all the keys on fc2
for ( i=0; i<fc2.GetNumKeys(); i++ )
{
        key = fc2.GetKeyAtIndex(i);
        key.Locked = true;
}
var cKeys = 10, startframe, endframe;
// Remove 10 keys starting at index 10
startframe = fc1.GetKeyFrame(10);       
endframe = fc1.GetKeyFrame(10 + cKeys - 1);
LogMessage( "keys in interval " + startframe + "-" + endframe + " : " + fc1.GetNumKeys(startframe,endframe) );
fc1.RemoveKeysAtIndex(10,10);
LogMessage( "keys remaining in interval " + fc1.GetNumKeys( startframe, endframe ) );
// remove 10 keys starting at index 0 and override the key lock
startframe = fc2.GetKeyFrame(0);        
endframe = fc2.GetKeyFrame( cKeys-1 );
LogMessage( "keys in interval " + startframe+"-"+endframe+" : " +  fc1.GetNumKeys(startframe,endframe) );
fc2.RemoveKeysAtIndex( 0, 10, true );
LogMessage( "keys remaining in interval " + fc2.GetNumKeys(startframe,endframe) );
// Outputs:
//INFO : "keys in interval 11-20 : 10"
//INFO : "keys remaining in interval 0"
//INFO : "keys in interval 1-10 : 10"
//INFO : "keys remaining in interval 0"