android - Calculate latitude longitude for added height -

i want draw line chart on android google map. have gps coordinates of path , want show speed of car on map height of line.

see image this,

for each gps (lat,lng) point want add height , calculate corresponding gps(lat,lng) point. want show in 3d view have change points when camera position changed first step calculate gps points added height.

for example

arraylist<latlng> basepoints = new arraylist<latlng>(); basepoints.add(new latlng(53.262688, -2.500792)); basepoints.add(new latlng(53.262758, -2.500897)); basepoints.add(new latlng(53.262789, -2.501087)); basepoints.add(new latlng(53.262798, -2.501229)); basepoints.add(new latlng(53.262785, -2.501414)); basepoints.add(new latlng(53.262760, -2.501594)); basepoints.add(new latlng(53.262707, -2.501811)); basepoints.add(new latlng(53.262655, -2.501943));  arraylist<latlng> toppoints = new arraylist<latlng>(); toppoints.add(new latlng(53.262939, -2.500779)); toppoints.add(new latlng(53.262975, -2.500916)); toppoints.add(new latlng(53.262914, -2.501098)); toppoints.add(new latlng(53.263055, -2.501248)); toppoints.add(new latlng(53.262925, -2.501439)); toppoints.add(new latlng(53.263045, -2.501581)); toppoints.add(new latlng(53.262907, -2.501844)); toppoints.add(new latlng(53.263002, -2.502015)); 

any idea how can it? thanks

from link provided have implemented you.

final arraylist<latlng> basepoints = new arraylist<latlng>(); basepoints.add(new latlng(53.262688, -2.500792)); basepoints.add(new latlng(53.262758, -2.500897)); basepoints.add(new latlng(53.262789, -2.501087)); basepoints.add(new latlng(53.262798, -2.501229)); basepoints.add(new latlng(53.262785, -2.501414)); basepoints.add(new latlng(53.262760, -2.501594)); basepoints.add(new latlng(53.262707, -2.501811)); basepoints.add(new latlng(53.262655, -2.501943));  final arraylist<double> speedpoints = new arraylist<double>(); speedpoints.add(7.955734692); speedpoints.add(8.761378798); speedpoints.add(11.07760474); speedpoints.add(13.69594751); speedpoints.add(15.50864695); speedpoints.add(16.01217576); speedpoints.add(15.60935179); speedpoints.add(15.71005663);  latlngbounds.builder bounds = new latlngbounds.builder(); for(int i=0;i<basepoints.size();i++) {     bounds.include(basepoints.get(i)); } map.movecamera(cameraupdatefactory.newlatlngbounds(bounds.build(), 300,300,0)); map.setoncamerachangelistener(new oncamerachangelistener() {     @override     public void oncamerachange(cameraposition arg0)     {         map.clear();         arraylist<latlng> toppoints = new arraylist<latlng>();         for(int i=0;i<basepoints.size();i++)         {             toppoints.add(movebydistance(basepoints.get(i), speedpoints.get(i)*3,map.getcameraposition().bearing));         }         polylineoptions toppo = new polylineoptions();         toppo.addall(toppoints).width(5).color(color.blue).geodesic(true);         map.addpolyline(toppo);         for(int i=0;i<basepoints.size()-1;i++)         {             map.addpolygon(new polygonoptions().add(basepoints.get(i),toppoints.get(i),toppoints.get(i+1),basepoints.get(i+1),basepoints.get(i)).fillcolor(color.yellow).strokecolor(color.yellow));         }     }  });  /**  * move latlng-point given distance , given angle (0-360,  * 0=north).  */ public static latlng movebydistance(latlng startgp, double distance,double angle) {     /*      * calculate part going north , part going east.      */     double arc = math.toradians(angle);     double tonorth = distance * math.cos(arc);     double toeast = distance * math.sin(arc);     double londiff = metertolongitude(toeast, startgp.latitude);     double latdiff = metertolatitude(tonorth);     return new latlng(startgp.latitude + latdiff, startgp.longitude + londiff); }  private static double metertolongitude(double metertoeast, double latitude) {     double latarc = math.toradians(latitude);     double radius = math.cos(latarc) * earthradius;     double rad = metertoeast / radius;     double degrees = math.todegrees(rad);     return degrees; }  private static double metertolatitude(double metertonorth) {     double rad = metertonorth / earthradius;     double degrees = math.todegrees(rad);     return degrees; } 

i hope implement this.