I have a b4a app that draws a legislative district on google maps from a KML file where I just load the coordinates into a point list and call:
'add polygon
Dim PolygonOptions1 As PolygonOptions
PolygonOptions1.Initialize
PolygonOptions1.AddPoints(points)
PolygonOptions1.FillColor = 0x2500ff00
PolygonOptions1.Geodesic=True
PolygonOptions1.Visible=True
GoogleMapsExtras1.AddPolygon(gmap,PolygonOptions1)
I use the same approach for b4i using googlemapsextra.bas:
gextra.Initialize(gmap)
gextra.AddPolygon(points, 0x800000FF, Colors.Gray)
But I get nothing on the map. To debug I verified that a simple four-point example works fine and I added a drawcircle at each coordinate to confirm that the coordinates are correct.
Google search implies the points need to be sorted to a "convex hull" to work. If so, this must be happening automatically in b4a since I use the same kml file in both apps.
So what's the best way to get the b4a polygon behavior working in b4i? Thanks
'add polygon
Dim PolygonOptions1 As PolygonOptions
PolygonOptions1.Initialize
PolygonOptions1.AddPoints(points)
PolygonOptions1.FillColor = 0x2500ff00
PolygonOptions1.Geodesic=True
PolygonOptions1.Visible=True
GoogleMapsExtras1.AddPolygon(gmap,PolygonOptions1)
I use the same approach for b4i using googlemapsextra.bas:
gextra.Initialize(gmap)
gextra.AddPolygon(points, 0x800000FF, Colors.Gray)
But I get nothing on the map. To debug I verified that a simple four-point example works fine and I added a drawcircle at each coordinate to confirm that the coordinates are correct.
Google search implies the points need to be sorted to a "convex hull" to work. If so, this must be happening automatically in b4a since I use the same kml file in both apps.
So what's the best way to get the b4a polygon behavior working in b4i? Thanks