Add flag to disable dynamic centering

Author: palmerusaf

src/plots/map/layout_attributes.js

@@ -77,6 +77,17 @@ var attrs = module.exports = overrideAll({
             '(in degrees, where *0* means perpendicular to the surface of the map) (map.pitch).'
         ].join(' ')
     },
+    disableDynamicCentering: {
+        valType: 'boolean',
+        dflt: false,
+        description: [
+            'By default the map camera will be dynamically centered on lon/lat points.',
+            'This can be slow when the number of points are above 1e7.',
+            'It is recommended to disable this feature for large datasets.',
+            'Note: This feature is also disabled if center or zoom attributes are set',
+            'regardless of disableDynamicCentering\'s setting.'
+        ].join(' ')
+    },
 
     bounds: {
         west: {

src/plots/map/layout_defaults.js

@@ -24,9 +24,10 @@ function handleDefaults(containerIn, containerOut, coerce, opts) {
     coerce('zoom');
     coerce('bearing');
     coerce('pitch');
+    coerce('disableDynamicCentering');
 
     // dynamically set center/zoom if neither param provided
-    if (!containerIn?.center && !containerIn?.zoom) {
+    if (!containerIn?.disableDynamicCentering && !containerIn?.center && !containerIn?.zoom) {
         var [{ lon, lat }] = opts.fullData;
         var { minLon, maxLon } = getLonBounds(lon);
         var { minLat, maxLat } = getLatBounds(lat);