RhinoScript: IsLayerVisible vs IsLayerOn

Scripting
1

hi @Dale, what is the difference between the two methods?

2

On the python/rhinoscriptsyntax end, there is zero difference, they both call

    layer = __getlayer(layer, True)
    return layer.IsVisible

Maybe one or the other is there for legacy/backwards compatibility reasons?

–Mitch

3

Thanks Mitch, I think the legacy must be the case.
I thought it may be Visible determines general visibility (dependent on Parent status) and On would be direct “bulb” On/Off status, but no - both of them seem to be the case #1

–jarek

4

Hi @Jarek,

In RhinoScript, both functions do the same this. IsLayerOn is a remnant from the Rhino 2.0 days, when the layer’s “state” was a tri-state (on, off, locked).

– Dale

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