// Reset values, to restore initial globe position.
var init_lat = 41.26;
var init_lon = -96.42;
var init_alt = 45000000;
var init_dir = 0;
var init_pitch = -20;
var init_camera_follow_dem = true;
var init_terrain_scale = 1;
var init_terrain_status = true;

/*
 * Called once the applet is initialized and ptolemy system started.
 */
function ptolemyStart(){

    // Get main references
    ptapplet = document.getElementById("pTolemy3D").getSubApplet();
    ptolemy = ptapplet.getPtolemy();
    canvas = ptapplet.getCanvas();
    camera = canvas.getCameraMovement();
    scene = ptolemy.getScene();
    land = scene.getLandscape();

    // Set initial camera position
    // Create a new Position object
    position = ptolemy.createInstance("org.ptolemy3d.view.Position");
    position.setLatitude(init_lat);
    position.setLongitude(init_lon);
    position.setAltitude(init_alt);

    camera.setOrientation(position, init_dir, init_pitch);
    camera.setFollowDem(init_camera_follow_dem);

    // Set landscape parameters
    land.setTerrainEnabled(init_terrain_status);
    land.setTerrainScaler(init_terrain_scale);
}

/*
 * Called once the applet is stopped.
 */
function ptolemyStop(){
// Do nothing
}

/*
 * Reset. Set the initial content of textarea.
 */
function reset(){
    ptolemyStart();
    $('#freecode').load('./code/reset.js','',function (responseText, textStatus, XMLHttpRequest) {
        $('#freecode').val(responseText);
    });
}

/*
 * Moves the camera.
 */
function execCameraMoveCode(){

    // Get parameters
    var lat = document.getElementById("latitude").value;
    var lon = document.getElementById("longitude").value;
    var alt = document.getElementById("altitude").value;
    var dir = document.getElementById("direction").value;
    var pit = document.getElementById("pitch").value;
    var realflight = document.getElementById("realflight").checked;
    var followdem = document.getElementById("followdem").checked;

    // Get ptolemy references
    ptapplet = document.getElementById("pTolemy3D").getSubApplet();
    canvas = ptapplet.getCanvas();
    camera = canvas.getCameraMovement();

    // Set new position
    camera.setPosition(lat, lon, alt);
    camera.setDirection(dir);
    camera.setPitch(pit);
    camera.setRealisticFlight(realflight);
    camera.setFollowDem(followdem);
}

/*
 * Moves the camera flight
 */
function execCameraFlyCode(){

    // Get parameters
    var lat = document.getElementById("latitude").value;
    var lon = document.getElementById("longitude").value;
    var alt = document.getElementById("altitude").value;
    var dir = document.getElementById("direction").value;
    var pit = document.getElementById("pitch").value;
    var realflight = document.getElementById("realflight").checked;
    var followdem = document.getElementById("followdem").checked;

    // Get ptolemy references
    ptapplet = document.getElementById("pTolemy3D").getSubApplet();
    canvas = ptapplet.getCanvas();
    camera = canvas.getCameraMovement();

    // Set new position
    camera.flyTo(lat, lon, alt);
//    camera.setDirection(dir);
//    camera.setPitch(pit);
//    camera.setRealisticFlight(realflight);
//    camera.setFollowDem(followdem);
}

/*
 * Put camera code in the code area
 */
function seeCameraCode(){

    $("#tabs").tabs('select', 0);

    var lat = document.getElementById("latitude").value;
    var lon = document.getElementById("longitude").value;
    var alt = document.getElementById("altitude").value;
    var dir = document.getElementById("direction").value;
    var pit = document.getElementById("pitch").value;
    var realflight = document.getElementById("realflight").checked;
    var followdem = document.getElementById("followdem").checked;

    $('#freecode').val('// Get ptolemy references \n\
ptapplet = document.getElementById("pTolemy3D").getSubApplet(); \n\
canvas = ptapplet.getCanvas(); \n\
camera = canvas.getCameraMovement(); \n\
 \n\
// Set new position \n\
camera.setPosition('+lat+', '+lon+', '+alt+'); \n\
camera.setDirection('+dir+'); \n\
camera.setPitch('+pit+'); \n\
camera.setRealisticFlight('+realflight+'); \n\
camera.setFollowDem('+followdem+');\n\
\n\
// Also you can use the camera.flyTo(lat, lon, alt) method to fly to the desired position.\n\
');

}

/*
 * Execute terrain code
 */
function execTerrainCode(){

    // Get parameters
    var terrainEnabled = document.getElementById("terrainEnabled").checked;
    var terrainScaler = document.getElementById("terrainScaler").value;
    
    // Get main references
    ptapplet = document.getElementById("pTolemy3D").getSubApplet();
    ptolemy = ptapplet.getPtolemy();
    scene = ptolemy.getScene();
    land = scene.getLandscape();

    land.setTerrainEnabled(terrainEnabled);
    land.setTerrainScaler(terrainScaler);
}

/*
 * Put terrain code in the code area
 */
function seeTerrainCode(){

    $("#tabs").tabs('select', 0);

    var terrainEnabled = document.getElementById("terrainEnabled").checked;
    var terrainScaler = document.getElementById("terrainScaler").value;

    $('#freecode').val('// Get main references\n\
ptapplet = document.getElementById("pTolemy3D").getSubApplet();\n\
ptolemy = ptapplet.getPtolemy();\n\
scene = ptolemy.getScene();\n\
land = scene.getLandscape();\n\
\n\
land.setTerrainEnabled('+terrainEnabled+');\n\
land.setTerrainScaler('+terrainScaler+');\n\
\n\
// You can use the getter methods land.isTerrainEnabled() and land.getTerrainSacler() the get the current values.\n\
');

}

/*
 * Execute Icon Plugin code
 */
function execPluginIconCode(){
    
    // Get parameters
    var url = document.getElementById("iconUrl").value;
    var lat = document.getElementById("iconLatitude").value;
    var lon = document.getElementById("iconLongitude").value;    

    // Get ptolemy references
    ptapplet = document.getElementById("pTolemy3D").getSubApplet();
    ptolemy = ptapplet.getPtolemy();
    scene = ptolemy.getScene();

    // Create position object
    position = ptolemy.createInstance("org.ptolemy3d.view.Position");
    position.setLatitude(lat);
    position.setLongitude(lon);
    position.setAltitude(0);

    // Create icon plugin
    iconPlugin = ptolemy.createInstance("org.ptolemy3d.plugin.IconPlugin");
    iconPlugin.setFileUrl(url);
    iconPlugin.setPosition(position);

    // Add plugin to the scene.
    scene.getPlugins().addPlugin(iconPlugin);
}

/*
 * Put icon code in the code area
 */
function seePluginIconCode(){

    $("#tabs").tabs('select', 0);

    var url = document.getElementById("iconUrl").value;
    var lat = document.getElementById("iconLatitude").value;
    var lon = document.getElementById("iconLongitude").value;

    $('#freecode').val('// Get ptolemy references \n\
ptapplet = document.getElementById("pTolemy3D").getSubApplet(); \n\
ptolemy = ptapplet.getPtolemy(); \n\
scene = ptolemy.getScene(); \n\
 \n\
// Create position object \n\
position = ptolemy.createInstance("org.ptolemy3d.view.Position"); \n\
position.setLatitude('+lat+'); \n\
position.setLongitude('+lon+'); \n\
position.setAltitude(0); \n\
 \n\
// Create icon plugin \n\
iconPlugin = ptolemy.createInstance("org.ptolemy3d.plugin.IconPlugin"); \n\
iconPlugin.setFileUrl("'+url+'"); \n\
iconPlugin.setPosition(position); \n\
 \n\
// Add plugin to the scene. \n\
scene.getPlugins().addPlugin(iconPlugin); \n\
');
}

/*
 * Execute CityGML Plugin code
 */
function execPluginCityGmlCode(){

    // Get parameters
    var url = document.getElementById("cityUrl").value;
    var alt = document.getElementById("cityAltitude").value;
    var citylat = document.getElementById("cityLatPos").value;
    var citylon = document.getElementById("cityLonPos").value;
    var cityalt = document.getElementById("cityAltPos").value;

    // Get ptolemy references
    ptapplet = document.getElementById("pTolemy3D").getSubApplet();
    ptolemy = ptapplet.getPtolemy();
    scene = ptolemy.getScene();
    canvas = ptapplet.getCanvas();
    camera = canvas.getCameraMovement();

    // Create icon plugin
    cityPlugin = ptolemy.createInstance("org.ptolemy3d.plugin.CityGmlPlugin");
    cityPlugin.setFileUrl(url);
    cityPlugin.setAltitude(alt);

    // Add plugin to the scene.
    scene.getPlugins().addPlugin(cityPlugin);

    // Fly to city coordinates
    camera.flyTo(citylat, citylon, cityalt);
}

/*
 * Put city code in the code area
 */
function seePluginCityGmlCode(){

    $("#tabs").tabs('select', 0);

    var url = document.getElementById("cityUrl").value;
    var alt = document.getElementById("cityAltitude").value;
    var citylat = document.getElementById("cityLatPos").value;
    var citylon = document.getElementById("cityLonPos").value;
    var cityalt = document.getElementById("cityAltPos").value;

    $('#freecode').val('// Get ptolemy references\n\
ptapplet = document.getElementById("pTolemy3D").getSubApplet();\n\
ptolemy = ptapplet.getPtolemy();\n\
scene = ptolemy.getScene();\n\
canvas = ptapplet.getCanvas();\n\
camera = canvas.getCameraMovement();\n\
\n\
// Create icon plugin\n\
cityPlugin = ptolemy.createInstance("org.ptolemy3d.plugin.CityGmlPlugin");\n\
cityPlugin.setFileUrl("'+url+'");\n\
cityPlugin.setAltitude('+alt+');\n\
\n\
// Add plugin to the scene.\n\
scene.getPlugins().addPlugin(cityPlugin);\n\
// Fly to city coordinates\n\
camera.flyTo(citylat, citylon, cityalt);\n\
');
}