improve autozooming on non-gpx background data layers #3826
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old implementation only worked for points and linestrings, but geojson and kml can contain any geometry. aso, d3 is a bit special[1] when working with geojson polygons: it does require clockwise winding, but typical geojson is either counterclockwise winding (RFC7946) or "winding doesn't matter" (old geojson.org spec). When inputing such geojson (or kml) input, iD would zoom out all the way, which is not the intended behavior. [1] https://github.com/d3/d3-geo#d3-geo
Whoa I did not know this, good catch.. All the GeoJSONs I tried this with contained LineStrings.. |
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The original implementation only worked for Points and LineStrings, but GeoJSON and KML can contain any geometry.
Aso, d3 is a bit special when working with GeoJSON Polygons: it does require clockwise winding, but typical GeoJSON uses either counterclockwise winding (RFC7946) or "winding doesn't matter" mode (old geojson.org spec). When inputing such GeoJSON (or KML) input, iD would zoom out all the way, which is not the intended behavior.