I am trying to draw a track on a OpenStreetMap in android. I am able to record the location and export it as a GPX file. I am also able to extract the latitude and longitude from the gpx file and overlay it as coordinates in the OSM. My question is, I am able to show only the coordinates of the trackpoints but I don't know how to connect these points to show as a route. Can somehow help me if you have achieved this?
As alternative, you can have a look at [skmaps]:
check the tracks menu in the demo project
if you have the route points/list of segments, then you can draw them on the map using a SkPolyline - see the getting started chapter: http://developer.skobbler.com/getting-started/android#sec009
You can use OSMBonusPack Polyline overlay.
Related
I am creating an android app which is notify location to get off from the bus. It shows bus route by using poly lines and when user enter the destination, it also shows the path from current location. My question is how can I get the location of intercept point. I have attached a screen shot here.enter image description here
This question is a bit ambiguous, I recommend you first search and show your effort (or code) or whatever you did to solve your problem and give more context,for instance, ¿are the routes are in lat,lng format? etc.
Regarding this, there is a lot of algorithms to acomplish what you are looking, like:
How to find if an intersection occurs between two line segments represented by a Latitude and Longitude
Efficient list intersection algorithm
or a mathematic aproach in case you want to programme it by youself:
http://www.wikihow.com/Algebraically-Find-the-Intersection-of-Two-Lines
IMHO I would pre-calculate the intersections points before, store it and then compare it with the realtime position (lat,lng) of the users. If the user is near one of the intersections (with algorithms like: How to calculate the bounding box for a given lat/lng location?), show it.
Hope it helps.
I am trying to develop very basic GPS App and want to highlight path between two cities. I used the code in the following post
Answer : Draw path between two points using Google Maps Android API v2
by zeeshan0026.
And the code works fine but when you highlight path between two very far cities then it shows the straight kind of path. I think the problem with the number of LatLng points return by the decodepoly function i am trying to change the shift but nothing helps.
Please somebody help me in this regard.
Thanks in Advance
Directions API URLs are restricted to approximately 2000 characters, after URL Encoding. As some Directions API URLs may involve many locations along a path, be aware of this limit when constructing your URLs.
For more accurate path between very far cities, we need to use the polyutil.encode and decode functions.
I have a KML file which is created from maps.google.com. And i want to draw a route on google map.
I am using mapV_2 in my project. Also one more thing I read couple of threds here on SO saying that KML is no more working on google map One, Two. So is it really not working today for Android? Any othe way to get this done?
I'm a newbie into Android programming... Here's what I'm trying to do for a small academic project:
A google map displayed on screen: Done
Get user's current location and show on the map: Done
We've a list of Latitudes and Longitudes coming from a webservice, which forms a pre-defined path. I need to display an always-shown path on the map with static markers as per the list of Lat-Longs given. How?
I tried various ways, and searched various places, but couldn't find a satisfactory code or tutorial that has achieved the same. Can someone please point me to an appropriate resource that I can use to get the above?
Download and check for static marker..................
https://github.com/commonsguy/cw-android/tree/master/Maps/NooYawk
http://android-codes-examples.blogspot.com/2011/04/google-map-example-in-android-with-info.html
You need to implement Overlay and draw the path in the draw() method.
Use this SO post to get an idea of how to do it.
I am facing a bit of problem with getting the route information from Google maps
I use the following url to get the complete route info. The query contains intermediate destination points
http://maps.google.com/maps?f=d&hl=en&saddr=45.414569,-75.707324&daddr=45.430579,-75.686953+to:45.436207,-75.684726+to:45.434764,-75.683417+to:45.43415,-75.682838+to:45.429996,-75.683098&ie=UTF8&om=0&dirflg=w&output=kml
This gives me back a kml file but the kml file contains route coordinates only till the first destination point and no futher however if i remove the output parameter, the google map draws all the destinations mentioned in the "+to:" clause
http://maps.google.com/maps?f=d&hl=en&saddr=45.414569,-75.707324&daddr=45.430579,-75.686953+to:45.436207,-75.684726+to:45.434764,-75.683417+to:45.43415,-75.682838+to:45.429996,-75.683098&ie=UTF8&om=0&dirflg=w
How to get all the route coordinates in KML including all the intermediate destination points
Thanks
surya
Same question as How to get KML of route with waypoints?
Bottomline: multistep routing is only supported inside google maps and not through the downloaded kml.