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1. You cannot hide parts of the map. 2. https://www.b4x./?query=point+in+polygon
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: Hi the upper map is from javascript web page access to Google maps and the lower is from mobile?
link: ?? https://www.b4x.com/android/forum/threads/b4a-googlemap-get-click-data-on-polylines-polygons-and-circles.135522/#content

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...

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

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

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

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

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

i don't believe there is an api to do that. it's certainly doable but i believe you're going to have to do a lot of the work yourself: 1) draw a number of polygons and put them on the map. easy. 2) find the center of each polygon and make that a waypoint. should be easy. 3) calculate the directi
link: Thanks for your response. I work like you said. But I want to draw polygons from point A to point to point C ... etc. Is it possible to do it without
link: google maps directions api has a limit of 25 waypoints per request, so you'd need to string 2 requests together (or however multiples of 25 it takes t
link: Is it a way to make direction and draw route (polypoints) for more 40 address?

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: 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
link: Wow, beautiful app. What is 'gmap' ? The libraries required are: googlemaps, googlemapsextra, navigation. Anything else?

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