From 89c6eb7ddfa76aa57e33dfbe38384854f074286d Mon Sep 17 00:00:00 2001
From: Nathan Gass <gass@search.ch>
Date: Tue, 28 Mar 2023 14:46:50 +0200
Subject: [PATCH] Use center and zoom from style json (#507)

* Use center and zoom from style json as default center for tilejson of rendered maps

* Round zoom as style spec allows fractional zooms while tilejson spec does not
---
 src/serve_rendered.js | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/src/serve_rendered.js b/src/serve_rendered.js
index de94e30..ff8a023 100644
--- a/src/serve_rendered.js
+++ b/src/serve_rendered.js
@@ -1374,6 +1374,9 @@ export const serve_rendered = {
       type: 'baselayer',
     };
     const attributionOverride = params.tilejson && params.tilejson.attribution;
+    if (styleJSON.center && styleJSON.zoom) {
+      tileJSON.center = styleJSON.center.concat(Math.round(styleJSON.zoom));
+    }
     Object.assign(tileJSON, params.tilejson || {});
     tileJSON.tiles = params.domains || options.domains;
     fixTileJSONCenter(tileJSON);