polygongmap.net

Center of polygon in gmap.net

I'm using Gmap.Get great mapping tools to develop an enterprise software. How to calculate center of polygon in Gmap.Net using polygon points?

Solution

  • Use following code to calculate center of polygon in Gmap.Net:

    Private Function CalculateCenterOfPolygon(polyPoints As List(Of PointLatLng)) As PointLatLng
    Dim centerPoint As New PointLatLng()
    Dim sum As Integer = 0
    Dim Lat As Double = 0
    Dim Lng As Double = 0
    For Each point As PointLatLng In polyPoints
        sum += 1
        Lat += point.Lat
        Lng += point.Lng
    Next
    Lat = Lat / sum
    Lng = Lng / sum

    centerPoint.Lat = Lat
    centerPoint.Lng = Lng

    Return centerPoint
End Function