Reverse¶

Reverse geocoding is the process of converting geographic coordinates (latitude and longitude) into a human-readable address or place name. A Reverse API is a feature provided by VIETMAP that allows developers to perform reverse geocoding in their custom mapping applications. With a Reverse API, developers can take a set of coordinates as input and retrieve information such as the nearest address, city, or place name. This information can be used to provide context for the location on the map, or to perform further actions such as search and navigation.

URL¶

https://maps.vietmap.vn/api/reverse?api-version=1.1&apikey={your-apikey}&point.lat={point.lat}&point.lon={point.lon}&boundary.circle.radius={boundary.circle.radius}&size={size}&layers={layers}

Method¶

GET

Parameters¶

Parameter	Type	Option	Default	Description	Example
point.lat	floating point number	yes	none		10.758584896812293
point.lon	floating point number	yes	none		106.67527198791505
boundary.circle.radius	floating point number	no	1		0.5
size	integer	no	10		3
layers	use comma to seperate multi layer types	no	none (all layers)	the kind of place you want to find	address,street,venue

Filter Feature¶

Focus on categories of records responed

URL:

https://maps.vietmap.vn/api/reverse?api-version=1.1&apikey={your-apikey}&point.lat={point.lat}&point.lon={point.lon}&layers={layers}

Layer	Description
venue	points of interest, businesses, things with walls
address	places with a street address
street	streets, roads, highways

Distance and Confidence score returned

The records which is responed by request will be verified with distance and confidence score

✔️ Distance is directly distance form output point to the center (input point)
✔️ Confident score is accuracy of results based on distance

Distance from point.lat/point.lon	Confidence score
< 1m	1.0
< 10m	0.9
< 100m	0.8
< 250m	0.7
< 1km	0.6
>= 1km	0.5