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With this class, you can check if the GPS location coordinate is inside a polygon. You can use this class to check whether the user is inside a building, shopping mall or any custom shape. This class is only for B4A and B4I. Here is how can you get the coordinates of an establishment (school, offic
link: This is based on google.maps.geometry.poly.containsLocation. To check if the point is on the edge of a polyline you have to use google.maps.geometry.p
link: info: year 2015 https://www.b4x.com/android/forum/threads/geo-zone-determination-point-in-polygon.53929/

1. You cannot hide parts of the map. 2. https://www.b4x./?query=point+in+polygon
link: Hi the upper map is from javascript web page access to Google maps and the lower is from mobile?
link: hi, i have a google map defined area i all ready draw a polygon whit this cordenates i want know if possible show only the inner area polygon in the m
link: ?? https://www.b4x.com/android/forum/threads/b4a-googlemap-get-click-data-on-polylines-polygons-and-circles.135522/#content

Make sure to use the latest version: https://www.b4x. I've tested it with a simple polygon and it worked. Note that there is a known issue with Java 14 and google maps. Better to use Java 11 for now.
link: Hello, I previously used jdk 1.8.0_181 without any problems to draw a geofence with polygon in google maps. If I configure paths to use jdk11 or 14 (

Yes, there do seem to be some differences between B4A and J when it comes to implementation of Google Maps. Here is the code I used to add the initial polygon: gmap.AddPolygon(lstPointsLatLng, LineWidthPolygon, LineColorPolygon, FillColorPolygon, OpacityPolygon) where my variables are: lstPointsLat
link: post the code you use to create the polygon and adding them to the map. I have to add that i never used GoogleMaps in B4J, only B4A.
link: *Opacity - Inner color opacity. Value between 0 to 1. */ public PolygonWrapper AddPolygon(List Points, float StrokeWidth, Paint StrokeColor,
link: The GoogleMaps demo in the link in the previous post does not have the possibility to change the color of a polygon. I have also searched for a soluti

Dim poly As Polygon = mextra.AddPolygon(gmap,popt) AddPolygon return the added Polygon object... You can later use this reference to change the polygon. You should not use the used Polygonoptions. They are only needed to define before you use AddPolygon. Afterwards you should use the Polygons Opt
link: I've added about 20 polygons to a Google Map using GoogleMapsExtras and PolygonOptions. Later, when the user checks a Checkbox I want to highlight on
link: Many thanks DonManfred :) - I had figured that out as my next plan so I can happily proceed...

I checked the source code, and It has to do with setting fences when e.g. dragging a marker. ' create the google map Dim gm1 As ABMGoogleMap gm1.Initialize(page, "gm1", -12.043333, -77.028333, 15, 350, ABM.GOOGLEMAPTYPE_ROADMAP,0) gm1.Draggable = True gm1.HasMapTypeControl = True gm1.HasStreetView
link: Thank you for drawing attention to my problems. I misremembered that GameViewHelper came from ABMaterial. So, I'll have to research further! The pro
link: Thanks a lot! I have overwrite the gmaps.4.70.min.js file but no map on screen! Log from the browser (Chrome) GET http://localhost:54021/js/session

Some time ago I played a lot with GoogleMaps according to this post: https://www.b4x.-with-googlemaps-handling-polygons.84238/#post-533844 The problem was to add other shapes on a googlemap overlapping existing shapes. When you move the mouse over an existing shape the cursor doesn't work anymore an
link: Is there a way to remove all markers and polygons from the map? That is, reset it
link: This may also help, https://www.b4x.-all-markers-polylines-and-ground-overlays-that-has-been-added-to-the-googlemap.114572/post-715821 Regards, Ana

Yes, get the reference to the polyline and call polyline.remove
link: Greetings. It is possible to eliminate all the polygons that I have drawn in google maps with the jmaps library. Thank you

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.FillCol
link: Actually, nevermind. Just a coding error in the points list. gextra.AddPolygon works fine.

umnRk2meDng Sub MapFragment1_LongClick (mPoint As LatLng) ... gmap.AddMarker3(mPoint.Latitude,mPoint.Longitude, "MicroArea " & Starter.numero_microarea,LoadBitmap(File.DirAssets,"flag50.png") ).InfoWindowShown = True .... lista_punta.Add(mPoint) If lista_punta.Size = 6 Then
link: Wow, beautiful app. What is 'gmap' ? The libraries required are: googlemaps, googlemapsextra, navigation. Anything else?
link: I have a google maps working in a test app. I What I need is to draw a polygon on the map then calculate the area. I have searched with no luck. I als

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