Show and Tell - Dash Leaflet

Bezil · April 5, 2022, 4:11pm

I am trying to include GeoTIFFOverlay in the dl.Map.
I works well with the example proposed here:

thedirtyfew/dash-leaflet/blob/475d7feee45aa702717f53c7f51a2903e6c3a051/usage_gallery.py#L194

      
        
                           children=[
                               dl.TileLayer(url="https://cartodb-basemaps-{s}.global.ssl.fastly.net/dark_nolabels/{z}/{x}/{y}.png"),
                               dl.GeoTIFFOverlay(id=GEOTIFF_ID, interactive=True, url="/assets/tz850.tiff", band=1, opacity=0.9,
                                                 **color_domain),
                               dl.Colorbar(width=200, height=20, **color_domain, unit="°C", style={'color': 'white'}),
                               html.Div(id=GEOTIFF_MARKER_ID)
                           ]),
                ]
            
            

            
def register_example5(app):
                @app.callback(Output(GEOTIFF_MARKER_ID, 'children'),
                              [Input(GEOTIFF_ID, 'click_lat_lng_val')])
                def geotiff_marker(x):
                    if x is not None:
                        lat, lon, val = x
                        return dl.Marker(position=[lat, lon], icon={
                            "iconUrl": "/assets/thermometer.png",
                            "iconSize": [40, 40],
                            "iconAnchor": [20, 36]
                        }, children=[

First, if I understand correctly, GeoTIFFOverlay could not be part of LayersControl and to be checked/unchecked?
I also tried to use my own COGs, which I made with GDAL - but it seems that dl.GeoTIFFOverlay do not reads it as COGs, but as normal TIFF - what could be the reason?
I also checked the possibility to render it differently - like for exampe wind speed/direction which is included in leaflet-geotiff plugin:

Any support on being able to use COGs in dash-leaflet and how to be able to use Leaflet plugins in dash-leaflet will be highly appreciated.

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Show and Tell - Dash Leaflet

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