pydeck 0.8.0: viewport does not return bounds

[prusswan]

Description

I tried to follow the event handling example using pydeck 0.8.0. The example references 'nw' and 'se' attributes that are no longer present in the payload, so how should we figure out the current bounds of the map view?

Attributes in payload:

© [CARTO](https://carto.com/about-carto/), © [OpenStreetMap](http://www.openstreetmap.org/about/) contributors
last_payload['data']['viewport']
{'_frustumPlanes': {},

'id': 'MapView',

'x': 0,

'y': 0,

'width': 784,

'height': 500,

'zoom': 14.078189967439624,

'distanceScales': {'unitsPerMeter': [1.2793877345341609e-05,

1.2793877345341609e-05,

1.2793877345341609e-05],

'metersPerUnit': [78162.38760207522, 78162.38760207522, 78162.38760207522],

'unitsPerDegree': [1.4222222222222223,

1.4226080837056239,

1.2793877345341609e-05],

'degreesPerUnit': [0.703125, 0.7029342877028998, 78162.38760207522]},

'focalDistance': 1.5,

'position': [0, 0, 0],

'modelMatrix': None,

'isGeospatial': True,

'scale': 17296.46947929418,

'center': [403.75017433281226, 257.8981356964472, 0],

'viewMatrixUncentered': [34.59293895858836,

0,

0,

0,

0,

34.59293895858836,

0,

0,

0,

0,

34.59293895858836,

0,

0,

0,

-1.5,

1],

'viewMatrix': [34.59293895858836,

0,

0,

0,

0,

34.59293895858836,

0,

0,

0,

0,

34.59293895858836,

0,

-13966.905135214385,

-8921.454465680936,

-1.5,

1],

'projectionMatrix': [1.913265306122449,

0,

0,

0,

0,

3,

0,

0,

0,

0,

-1.1413427561837457,

-1,

0,

0,

-0.2141342756183746,

0],

'viewProjectionMatrix': [66.18546994627876,

0,

0,

0,

0,

103.77881687576509,

0,

0,

0,

0,

-39.48240029549132,

-34.59293895858836,

-26722.395029109153,

-26764.363397042805,

1.497879858657244,

1.5],

'viewMatrixInverse': [0.028907633468122276,

0,

0,

0,

0,

0.028907633468122276,

0,

0,

0,

0,

0.028907633468122276,

0,

403.7501743328122,

257.8981356964472,

0.04336145020218341,

1],

'cameraPosition': [403.7501743328122, 257.8981356964472, 0.04336145020218341],

'pixelProjectionMatrix': [25944.70421894127,

0,

0,

0,

0,

-25944.70421894127,

0,

0,

-13560.432071766638,

-8648.23473964709,

-39.48240029549132,

-34.59293895858836,

-10474590.851410788,

6691465.849260702,

1.497879858657244,

1.5],

'pixelUnprojectionMatrix': [3.85435112908297e-05,

0,

0,

0,

0,

-3.85435112908297e-05,

0,

0,

-1885.4999890459694,

-1204.37578221278,

-0.20249654137323259,

-4.669966996699665,

2151.986645225723,

1374.6152106295117,

0.2022103271804789,

5.330033003300325],

'latitude': 1.3345059847136809,

'longitude': 103.8868413277586,

'pitch': 0,

'bearing': 0,

'altitude': 1.5,

'fovy': 36.86989764584402,

'orthographic': False,

'_subViewports': None,

'_pseudoMeters': False}

It seems that the projection related functions in deck.gl (https://github.com/visgl/deck.gl/blob/c7f1a66e47062eee85ce30cfe1216d6fb8287aae/modules/core/src/viewports/viewport.ts) have yet to be ported to pydeck?

Flavors

• Script tag
• React
• Python/Jupyter notebook
• MapboxOverlay
• GoogleMapsOverlay
• CartoLayer
• ArcGIS

Expected Behavior

No response

Steps to Reproduce

refer to description

Environment

pydeck 0.8.0

Logs

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