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Fix source filtering at low zooms to include global sources

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Bryan Housel
2020-03-13 12:43:11 -04:00
parent 1aa5e89a38
commit bdd02e5943
1 changed files with 3 additions and 1 deletions
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modules/renderer/background.js
+3 -1
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@@ -51,6 +51,8 @@ export function rendererBackground(context) {
// Features resolved from loco should have area precalculated.
source.area = feature.properties.area || Infinity;
// Flag if this is a "global" source
source.isGlobal = feature.id === 'Q2';
// Instantiate a `rendererBackgroundSource`
let background;
@@ -283,7 +285,7 @@ export function rendererBackground(context) {
return _imageryIndex.backgrounds.filter(source => {
if (includeCurrent && currSource === source) return true; // optionally include the current imagery
if (zoom && zoom < 6) return false; // optionally exclude local imagery at low zooms
if (zoom && zoom < 6) return source.isGlobal; // optionally exclude local imagery at low zooms
return visible[source.id]; // include imagery visible in given extent
});
};