Basic GPS App

StevieB

I am currently working on the beginning stages of a GPS based Android app. It is very basic, essentially a map and compass are shown and direct you to the location, once you reach the location a sound is played. Currently the map works as well as the app being able to read and print the location of the device into the console. I can't seem to get the sound to play. And although the compass shows up on the screen it always points backwards/opposite of the location (I assume I need to change the point of the shape, but not sure where). If anyone sees where my code has went wrong I'd really appreciate your help.

`import ketai.sensors.*; import android.location.Location; import apwidgets.*;

KetaiLocation location; KetaiSensor sensor; Location Napier; PVector locationVector = new PVector(); float compass;

PImage img;

double longitude, latitude; float accuracy;

APMediaPlayer bing;

void setup() { Napier = new Location("Home"); Napier.setLatitude(55.9403355); Napier.setLongitude(-3.203854130);

location = new KetaiLocation(this); sensor = new KetaiSensor(this);

sensor.start();

bing = new APMediaPlayer(this); bing.setMediaFile("bing.mp3"); bing.setVolume(1.0, 1.0);

orientation(LANDSCAPE); textAlign(CENTER, CENTER); textSize(28); smooth(); }

void draw() { img = loadImage("NapierMap.jpg"); imageMode(CENTER); image(img, width/2, height/2, width, height); findNapier(); }

void findNapier() { float bearing = location.getLocation().bearingTo(Napier); float distance = location.getLocation().distanceTo(Napier); translate(width/2, height/2); rotate(radians(bearing) - radians(compass)); fill(#FF0000); triangle(-width/40, 0, width/40, 0, 0, -width/20); if (latitude => 55.9403350 && latitude =< 55.9403360 && longitude => -3.203854125 && longitude =< -3.203854135) { bing.start(); } }

void onLocationEvent(double _latitude, double _longitude, double _altitude, float _accuracy) {
longitude = _longitude; latitude = _latitude; accuracy = _accuracy; println("lat/lon/alt/acc: " + latitude + "/" + longitude + accuracy); }

void onLocationEvent(Location _location) { println("onLocation event: " + _location.toString()); locationVector.x = (float)_location.getLatitude(); //(7) locationVector.y = (float)_location.getLongitude(); }

void onOrientationEvent(float x, float y, float z, long time, int accuracy) { compass = x; } `

Chrisir

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StevieB

import ketai.sensors.*;
import android.location.Location;
import apwidgets.*;

KetaiLocation location;
KetaiSensor sensor;
Location Napier;
PVector locationVector = new PVector();
float compass;

PImage img;

double longitude, latitude;
float accuracy;

APMediaPlayer bing;

void setup() {
  Napier = new Location("Home"); 
  Napier.setLatitude(55.9403355);
  Napier.setLongitude(-3.203854130);

  location = new KetaiLocation(this);
  sensor = new KetaiSensor(this);

  sensor.start();

  bing = new APMediaPlayer(this);
  bing.setMediaFile("bing.mp3");
  bing.setVolume(1.0, 1.0);

  orientation(LANDSCAPE);
  textAlign(CENTER, CENTER);
  textSize(28);
  smooth();
}

void draw() {
  img = loadImage("NapierMap.jpg");
  imageMode(CENTER);
  image(img, width/2, height/2, width, height);
  findNapier();
}

void findNapier() {
  float bearing = location.getLocation().bearingTo(Napier);
  float distance = location.getLocation().distanceTo(Napier);
  translate(width/2, height/2); 
  rotate(radians(bearing) - radians(compass)); 
  fill(#FF0000);
  triangle(-width/40, 0, width/40, 0, 0, -width/20);
  if (latitude => 55.9403350 && latitude =< 55.9403360 && longitude =>     -3.203854125 && longitude =< -3.203854135) {
    bing.start();
  }
}

void onLocationEvent(double _latitude, double _longitude, double _altitude, float _accuracy) {   
  longitude = _longitude;
  latitude = _latitude;
  accuracy = _accuracy;
  println("lat/lon/alt/acc: " + latitude + "/" + longitude + accuracy);
}  

void onLocationEvent(Location _location) {
  println("onLocation event: " + _location.toString());
  locationVector.x = (float)_location.getLatitude();  //(7)
  locationVector.y = (float)_location.getLongitude();
}

void onOrientationEvent(float x, float y, float z, long time, int accuracy) {
  compass = x;
}

Hope that's more legible.

akenaton

@ stevieb====

--- as for mediaplayer: a) your file must be in the data folder b) you have to change your code:: not AP... but:: PMediaPlayer bing;

bing = new PMediaPlayer(this); ----bing.start();

--- as for the rest i have tested, your triangle is false, try with a line, as or me it works; i can send you the corrected code if useful!