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Clarify 'propertyName' behaviour in dissolve #1806

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stevage opened this issue Dec 17, 2019 · 1 comment
Open

Clarify 'propertyName' behaviour in dissolve #1806

stevage opened this issue Dec 17, 2019 · 1 comment
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@stevage
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@stevage stevage commented Dec 17, 2019

Currently .dissolve() supports a property option which is a pretty limited way of saying "apply the dissolve to these polygons, but not those ones".

A more flexible approach would be a filter function:

var dissolved = turf.dissolve(features, { filter: f => f.properties.id === 47 } );

This way you're less likely to have to pre-massage the polygons to get the dissolve you want.
@stevage
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@stevage stevage commented Dec 17, 2019

Oh, actually I think it does do what I want, the documentation could just be clearer.

Replace:

features with equals 'propertyName' in

with

features with the same propertyName value will be dissolved.
@stevage stevage changed the title Support filter function for dissolve Clarify 'propertyName' behaviour in dissolve Dec 17, 2019
@rowanwins rowanwins added the docs label Jan 2, 2020
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