/**
* @AjaxCallable=TRUE
* @AjaxMethod=POST
* @AjaxAsync=TRUE
*/
public function loadData()
{
$this->load->library('geo/*');
$this->load->model('POIModel');
$this->load->model('LabelModel');
// Helper functions
function addFlag(&$res, $flag)
{
in_array($flag, $res['flags']) ? null : ($res['flags'][] = $flag);
}
function hasFlag($res, $flag)
{
return in_array($flag, $res);
}
function addLabels(&$res, $labels)
{
$res['labels'] = array_merge($res['labels'], $labels);
}
// Required params
$vBoundsWKT = filter_input(INPUT_POST, 'vBounds', FILTER_SANITIZE_STRING);
$zoom = filter_input(INPUT_POST, 'zoom', FILTER_VALIDATE_INT);
// Optional params, need to normalise if not present
$types = filter_input(INPUT_POST, 'types', FILTER_SANITIZE_STRING, FILTER_REQUIRE_ARRAY);
$poiId = filter_input(INPUT_POST, 'poiId', FILTER_VALIDATE_INT);
$poiIds = filter_input(INPUT_POST, 'poiIds', FILTER_VALIDATE_INT, FILTER_REQUIRE_ARRAY);
$flags = filter_input(INPUT_POST, 'flags', FILTER_SANITIZE_STRING, FILTER_REQUIRE_ARRAY);
$vBounds = ViewBounds::fromWKT($vBoundsWKT);
// Normalise parameters
if ($types === NULL) {
$types = [];
}
if ($poiId === NULL) {
$poiId = 0;
}
if ($poiIds === NULL) {
$poiIds = [];
}
if ($flags === NULL) {
$flags = [];
}
// Prepare result object
$res = ['labels' => [], 'flags' => []];
if ($poiId !== 0 && !hasFlag($flags, 'excludePoiLabel')) {
$poi = POIModel::load($poiId);
$res['labels'][] = LabelModel::loadDynamic($poiId);
$res['poi'] = [];
addFlag($res, 'doLabelling');
// Load poi info
if (hasFlag($flags, 'poiInfo')) {
$res['poi']['info'] = $poi->toObject();
}
// Load poi card
if (hasFlag($flags, 'poiCard')) {
$res['poi']['card'] = "<div>Card</div>";
addFlag($res, 'showCard');
}
// Pan to poi and fit border or adjust zoom accordingly
if (hasFlag($flags, 'panToPoi')) {
$border = $poi->border();
if ($border === NULL) {
$vBounds->setCenter($poi->latLng());
$vBounds->changeZoom(14 - $zoom);
$zoom = 14;
} else {
$borderBounds = ViewBounds::fromPolygon($border);
$vBounds->fitBounds($borderBounds, $zoom);
}
addFlag($res, 'panToCenter');
}
}
if (count($poiIds) > 0) {
// Load labels by poiIds
addLabels($res, LabelModel::loadDynamicByIds($poiIds));
if (hasFlag($flags, 'zoomToPois')) {
// Load pois for their positions and borders
$pois = POIModel::loadByIds($poiIds);
// Expand pois
if ($poiId !== 0) {
$poi = POIModel::load($poiId);
$pois = array_merge($pois, [$poi]);
}
// Initialise bounds and extend by all pois
$bounds = new ViewBounds($pois[0]->latLng(), $pois[0]->latLng());
for ($i = 1; $i < count($pois); $i++) {
if ($pois[$i]->border() === NULL) {
$bounds->extendByLatLng($pois[$i]->latLng());
} else {
$borderBounds = ViewBounds::fromPolygon($pois[$i]->border());
$bounds->extendByBounds($borderBounds);
}
}
$vBounds->fitBounds($bounds, $zoom);
$bounds->buffer(30, 30, $zoom);
$vBounds->fitBounds($bounds, $zoom);
}
addFlag($res, 'panToCenter');
addFlag($res, 'doLabelling');
}
if (count($types) > 0) {
$bounds = $vBounds->toBounds();
if (in_array('zoomToTypes', $flags)) {
$guard = 18;
// while (!LabelModel::typesWithinBounds($bounds, $types, $poiId) && --$guard > 0) {
while (!LabelModel::oneOfTypesWithinBounds($bounds, $types, $poiId) && --$guard > 0) {
$vBounds->zoomOut();
$bounds = $vBounds->toBounds();
$zoom--;
addFlag($res, 'panToCenter');
}
}
addLabels($res, LabelModel::loadDynamicByBounds($bounds, $types, $poiId));
addFlag($res, 'doLabelling');
}
if ($poiId !== 0 || $types !== NULL && count($types) > 0) {
$bounds = $vBounds->toBounds();
$exceptIds = array_merge($poiIds, [$poiId]);
addLabels($res, LabelModel::loadStaticDynamicByBounds($bounds, $zoom, $exceptIds, $types));
} else {
$bounds = $vBounds->toBounds();
addLabels($res, LabelModel::loadStaticByBounds($bounds, $zoom));
}
if (hasFlag($flags, 'newPois')) {
// Parameter '1' TO BE changed to logged-in user's id
$bounds = $vBounds->toBounds();
$res['new'] = LabelModel::loadNew($bounds, 1);
}
$res['center'] = $vBounds->getCenter()->toWKT();
$res['zoom'] = $zoom;
return $res;
}
function view()
{
$this->load->library('geo/*');
$this->load->model('POIModel');
$poiId = filter_input(INPUT_GET, 'poiId', FILTER_VALIDATE_INT);
$poiObject = new stdClass();
$attrsObject = new stdClass();
$poi = POIModel::load($poiId);
$poiObject->id = $poi->id();
$poiObject->name = $poi->name();
$poiObject->cat = $poi->cat();
$poiObject->sub = $poi->sub();
$poiObject->latLng = $poi->latLng();
$poiObject->border = $poi->border();
$attrsObject = $poi->attributes();
$r = sqrt(2 * pow(9, 2));
$sw = Geo::proximity($poi->latLng(), $r, 215);
$ne = Geo::proximity($poi->latLng(), $r, 45);
$vb = new ViewBounds($sw, $ne);
$poiBorder = $vb->toPolygon();
$near = POIModel::loadByBorder($poiBorder, ['restaurant', 'supermarket', 'gasstation', 'anchorage', 'buoys'], 198);
$nearSorted = [];
$nearSortedIds = [];
// Separate into subcategories
foreach ($near as $poiTo) {
$sub = $poiTo->sub();
if (!array_key_exists($sub, $nearSorted)) {
$nearSorted[$sub] = [];
$nearSortedIds[$sub] = [];
}
$nearSorted[$sub][] = ['poi' => $poiTo->toObject(), 'dist' => Geo::haversine($poi->latLng(), $poiTo->latLng())];
$nearSortedIds[$sub][] = $poiTo->id();
}
// Sort each subcategory by disance
foreach ($nearSorted as &$near) {
aasort($near, 'dist');
}
$this->assign('poi', $poiObject);
$this->assign('attrs', $attrsObject);
$this->assign('near', (object) $nearSorted);
$this->assign('nearIds', $nearSortedIds);
$this->load->view('templates/view');
}
/**
* @param ViewBounds $bounds
*/
public function fitBounds(ViewBounds $bounds, &$zoom = NULL)
{
// Set centre to given bounds centre
$this->setCenter($bounds->getCenter());
// Mercator-project bounds' north and south latitudes
$aLatDiff = merLat($this->n) - merLat($this->s);
$bLatDiff = merLat($bounds->n()) - merLat($bounds->s());
// Compute meridian zoom difference
$latZoomDiff = floor((log($aLatDiff) - log($bLatDiff)) / log(2) + 0.001);
// Compute parallel differences for this and given bounds
$aLngDiff = $this->e - $this->w;
$bLngDiff = $bounds->e() - $bounds->w();
// Compute parallel zoom difference
$lngZoomDiff = floor((log($aLngDiff) - log($bLngDiff)) / log(2) + 0.001);
// Change zoom using smaller of the two computed zoom differences
$zoomDiff = min($latZoomDiff, $lngZoomDiff);
$this->changeZoom($zoomDiff);
// Update zoom if given
if ($zoom !== NULL) {
$zoom += $zoomDiff;
}
}
/**
* @AjaxCallable=TRUE
* @AjaxMethod=POST
* @AjaxAsync=TRUE
*/
function loadData()
{
// Required params
$vBoundsWKT = filter_input(INPUT_POST, 'vBounds', FILTER_SANITIZE_STRING);
$zoom = filter_input(INPUT_POST, 'zoom', FILTER_VALIDATE_INT);
// Optional params, need to normalise if not present
$types = filter_input(INPUT_POST, 'types', FILTER_SANITIZE_STRING, FILTER_REQUIRE_ARRAY);
$poiId = filter_input(INPUT_POST, 'poiId', FILTER_VALIDATE_INT);
$flags = filter_input(INPUT_POST, 'flags', FILTER_SANITIZE_STRING, FILTER_REQUIRE_ARRAY);
$vBounds = ViewBounds::fromWKT($vBoundsWKT);
// Normalise parameters
if ($types === NULL) {
$types = [];
}
if ($poiId === NULL) {
$poiId = 0;
}
if ($flags === NULL) {
$flags = [];
}
// Prepare result object
$res = ['labels' => [], 'flags' => []];
if (in_array('poiInfo', $flags) || in_array('poiCard', $flags) || in_array('panToPoi', $flags)) {
$poi = POIModel::load($poiId);
$res['poi'] = [];
// Load poi info
if (in_array('poiInfo', $flags)) {
$res['poi']['info'] = $poi->info();
}
// Load poi card
if (in_array('poiCard', $flags)) {
$res['poi']['card'] = "<div>Card</div>";
$res['flags'][] = "showCard";
}
// Pan to poi and fit border or adjust zoom accordingly
if (in_array('panToPoi', $flags)) {
$border = $poi->border();
if ($border === NULL) {
$vBounds->setCenter($poi->latLng());
$vBounds->changeZoom(14 - $zoom);
$zoom = 14;
} else {
$borderBounds = ViewBounds::fromPolygon($border);
$vBounds->fitBounds($borderBounds, $zoom);
}
$res['flags'][] = "panToCenter";
}
}
if ($types !== NULL) {
$bounds = $vBounds->toBounds();
if (in_array('zoomToTypes', $flags)) {
$guard = 18;
while (!LabelModel::typesWithinBounds($bounds, $types, $poiId) && --$guard > 0) {
$vBounds->zoomOut();
$bounds = $vBounds->toBounds();
$zoom--;
}
$res['flags'][] = "panToCenter";
}
$res['labels'] = LabelModel::loadDynamicByBounds($bounds, $types, $poiId);
$res['flags'][] = "doLabelling";
}
if ($types !== NULL && count($types) > 0) {
$bounds = $vBounds->toBounds();
$res['labels'] = array_merge($res['labels'], LabelModel::loadStaticDynamicByBounds($bounds, $zoom, 0, $types));
} else {
$bounds = $vBounds->toBounds();
$res['labels'] = LabelModel::loadStaticByBounds($bounds, $zoom, $poiId);
}
$res['center'] = $vBounds->getCenter()->toWKT();
$res['zoom'] = $zoom;
return $res;
}
