Powerbi Map Bubble Location not shown correct

[Gilbert_lam]

I am using powerbi to show the inventory of wild trees in Hong Kong. 

I created a map view using latitude longtitude column from my table.

Each tree was displayed in the map as a small bubble.

however, the location of those bubbles was not correct, but off by a few hundred meters.

forexample, the bubble in the screenshot below is at latitude,longitude of 22.3733881,114.1225314

however, the acutal location latitude,longitude of 22.3733881,114.1225314 is shown below (Using google map)

Notice the aroundabout in two snapshot is the same, so the location is off by ~500m.

i have no idea why this would happen. I checked a few points, all of them were off by approx. 0.002 in latitiude and 0.005 by longtitude. Please help.

[v-luwang-msft · Accepted solution]

HI  @Gilbert_lam ,

Maps in Power BI, based on Bing Maps, so there are differences between them and Google Maps.

The imagery in Google Maps tends to be less accurately positioned than the imagery in Bing Maps. In North America and Western Europe Bing Maps imagery has a position accuracy of +/- 1.5 meters according to tests done by the European Joint Research Commission. Google Maps on the other had has been found to have it's imagery out of place by as much as 1.5 miles in some areas.

refer:

https://stackoverflow.com/questions/24143475/bing-maps-google-maps-difference-in-coordinates 

Best Regards

Lucien