How to re-use layer data in another layer?

mapnik / mapnik-support

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How to re-use layer data in another layer? #140

Open zdila opened 4 years ago

zdila commented 4 years ago

We have a layer with data from expensive select and would like to reuse the same data in a different layer. Is something like that possible?

Usecase: first layer renders lines and other line labels. We need some other layers to render between them.