Insert a Multipolygon into a Deck.gl Polygon chart

[KarypidisParis]

Hi,

I'm trying to insert a MultiPolygon into a deck.gl polygon chart.
I read that the MultiPolygon should be a list of polygons, something like this (a simplified map of Denmark).

[[[9.921906, 54.983104], [10.369993, 56.190007], [10.912182, 56.458621], [10.25, 56.890016], [10.580006, 57.730017], [9.424469, 57.172066], [8.256582, 56.809969], [8.120311, 55.517723], [9.282049, 54.830865], [9.921906, 54.983104]], [[12.370904, 56.111407], [11.043543, 55.364864], [12.690006, 55.609991], [12.370904, 56.111407]]]

This seems to work, and the contours appear fine. However, when enabling colour, only the first polygon is coloured while the second is overlayed (have a look at the attachments).

Does anybody know why this is happening?

[dosubot[bot]]

Hello @KarypidisParis 👋, I'm here to help you with any bugs, questions, or contributions you have.

The issue of only the first polygon in a MultiPolygon being colored while the second is overlaid without color in a deck.gl polygon chart is likely due to the way the getFillColor function is implemented. The getFillColor function uses a colorScaler that determines the color based on the data and selected state. If the colorScaler returns an opacity of zero for a polygon, it will not be colored. You should check the logic within the colorScaler function to ensure it correctly assigns non-zero opacity to all polygons that should be visible ^[1].

To continue talking to Dosu, mention @dosu.

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