Leaflet playback place marker - leaflet

Question

I am using the playback plugin and i am using it on an image overlay.
https://github.com/hallahan/LeafletPlayback
I need to scale the floor map before placing the marker. with the plugin the marker is placed some where outside of the floor map.
I am able to solve the issue for GPS tracking, where i have written a function to scale the map and place the marker inside pointToLayer method of layer property.
I want to do the same for marker too. any help is appreciated.
const playbackOptions = {
playControl: true,
dateControl: true,
orientIcons: true,
fadeMarkersWhenStale: true,
// layer and marker options
layer: {
pointToLayer(featureData, latlng) {
const { lat, lng } = latlng;
let result = {};
if (featureData && featureData.properties && featureData.properties.path_options) {
result = featureData.properties.path_options;
}
if (!result.radius) {
result.radius = 5;
}
const scaleX = width / details.width;
const scaleY = height / details.length;
const m = {
x: lat * scaleX,
y: lng * scaleY,
};
const iconCls = 'asset-icon';
const item = L.marker(self.map.unproject([m.x, m.y], self.map.getMaxZoom()), {
icon: makeMarker(iconCls, 0),
opacity: 0.9,
type: 'asset',
lat,
lng,
});
item.bindTooltip(`<p>${lat}, ${lng}`, { className: 'asset-label', offset: [0, 0] });
return item;
}
},
marker: {
getPopup(featureData) {
let result = '';
if (featureData && featureData.properties && featureData.properties.title) {
result = featureData.properties.title;
}
return result;
}
}
};

Answer 1

If you retrieve actual GPS coordinates, it would probably be easier to actually do the reverse, i.e. to georeference your image overlay once for good, instead of trying to fiddle with the geographic coordinates of each of the feature you try to show relatively to your image.