self.deckgl can be None + map not visible due to missing CSS for panel deckGL example

[madhur-tandon]

For the Panel DeckGL example,

@param.depends('view', 'radius', 'elevation', 'arc_view', watch=True)
    def update_spec(self):
        self.deck_gl.object = dict(self.spec)

The above snippet used to error out with: AttributeError: 'NoneType' object has no attribute 'object'
due to which I changed it to:

@param.depends('view', 'radius', 'elevation', 'arc_view', watch=True)
    def update_spec(self):
        if self.deck_gl:
            self.deck_gl.object = dict(self.spec)

After doing the above, we get issues related to missing CSS...

According to the quick-start here: https://docs.mapbox.com/mapbox-gl-js/guides/install/#quickstart

using the following snippet should be enough, which we already do so...

<script src='https://api.mapbox.com/mapbox-gl-js/v2.14.1/mapbox-gl.js'></script>
<link href='https://api.mapbox.com/mapbox-gl-js/v2.14.1/mapbox-gl.css' rel='stylesheet' />

So the issue is perhaps related to self.deck_gl being None only I assume?

[madhur-tandon]

Closed by #5