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387 lines
11 KiB
PHP
Executable File
387 lines
11 KiB
PHP
Executable File
<?php
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if (!defined('sugarEntry') || !sugarEntry) {
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die('Not A Valid Entry Point');
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}
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require_once('modules/jjwg_Areas/jjwg_Areas_sugar.php');
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require_once('modules/jjwg_Maps/jjwg_Maps.php');
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#[\AllowDynamicProperties]
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class jjwg_Areas extends jjwg_Areas_sugar
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{
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/**
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* @var settings array
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*/
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public $settings = array();
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/**
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* coords processed from coordinates string
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* @var array of strings ('lng,lat,elv')
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*/
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public $coords = array();
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/**
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* polygon processed from coordinates strings
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* @var array of arrays (keys: lng, lat, elv)
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*/
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public $polygon = null;
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/**
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* Point in Area/Polygon check on vertices
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* @var boolean
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*/
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public $point_on_vertex = true;
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/**
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* @area Polygon Area
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*/
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public $area = 0;
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/**
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* Polygon Centroid (Area Balance Center)
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* @var array (keys: lng, lat, elv)
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*/
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public $centroid = null;
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public function __construct($init=true)
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{
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parent::__construct();
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// Admin Config Setting
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if ($init) {
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$this->configuration();
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}
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}
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/**
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* Load Configuration Settings using Administration Module
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* See jjwg_Maps module for setting config
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* $GLOBALS['jjwg_config_defaults']
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* $GLOBALS['jjwg_config']
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*/
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public function configuration()
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{
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$this->jjwg_Maps = BeanFactory::newBean('jjwg_Maps');
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$this->settings = $GLOBALS['jjwg_config'];
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}
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/**
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* Retrieve object by id
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*/
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public function retrieve($id = -1, $encode = true, $deleted = true)
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{
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parent::retrieve($id, $encode, $deleted);
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$this->polygon = $this->define_polygon();
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$this->area = $this->define_area();
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$this->centroid = $this->define_centroid();
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return $this;
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}
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/**
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*
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* Define polygon coordinates
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*/
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public function define_polygon()
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{
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if (!empty($this->polygon)) {
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return $this->polygon;
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}
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if (preg_match('/[\n\r]/', (string) $this->coordinates)) {
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$this->coords = preg_split("/[\n\r\s]+/", (string) $this->coordinates, null, PREG_SPLIT_NO_EMPTY);
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} else {
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$this->coords = preg_split("/[\s]+/", (string) $this->coordinates, null, PREG_SPLIT_NO_EMPTY);
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}
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if (count($this->coords) > 0) {
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foreach ($this->coords as $coord) {
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$p = preg_split("/[\s\(\)]*,[\s\(\)]*/", (string) $coord, null, PREG_SPLIT_NO_EMPTY);
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if ($this->is_valid_lng($p[0]) && $this->is_valid_lat($p[1])) {
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$this->polygon[] = array(
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'lng' => $p[0],
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'lat' => $p[1],
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'elv' => $p[2],
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);
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}
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}
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}
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if (!is_array($this->polygon)) {
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LoggerManager::getLogger()->warn('Parameter must be an array or an object that implements Countable');
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}
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if (count((array)$this->polygon) > 0) {
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return $this->polygon;
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} else {
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return false;
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}
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}
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/**
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*
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* Define Area Location based on Centroid
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* (Center of Gravity or Balance Point)
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*
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*/
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public function define_area_loc()
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{
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$loc = array();
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$loc['name'] = $this->name;
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if (!is_null($this->centroid)) {
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$loc['lng'] = $this->centroid['lng'];
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$loc['lat'] = $this->centroid['lat'];
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} else {
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$loc['lng'] = null;
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$loc['lat'] = null;
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}
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$loc = $this->define_loc($loc);
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return $loc;
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}
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/**
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* Define Centroid - Point
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* @return type
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*/
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public function define_centroid()
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{
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if (!empty($this->centroid)) {
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return $this->centroid;
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}
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if (empty($this->polygon)) {
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$this->polygon = $this->define_polygon();
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}
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$n = is_countable($this->polygon) ? count($this->polygon) : 0;
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$a = $this->define_area($this->polygon);
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if (empty($a)) {
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return $this->centroid;
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}
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$cx = 0.0;
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$cy = 0.0;
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// Set $p as Polygon and Add Closing Point
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$p = $this->polygon;
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$p[] = $p[0];
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for ($i = 0; $i < $n; $i++) {
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$cx += ($p[$i]['lng'] + $p[$i+1]['lng']) * (($p[$i]['lng'] * $p[$i+1]['lat']) - ($p[$i+1]['lng'] * $p[$i]['lat']));
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$cy += ($p[$i]['lat'] + $p[$i+1]['lat']) * (($p[$i]['lng'] * $p[$i+1]['lat']) - ($p[$i+1]['lng'] * $p[$i]['lat']));
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}
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$centroid_lng = -(1/(6*$a))*$cx;
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$centroid_lat = -(1/(6*$a))*$cy;
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if ($centroid_lng != 0 && $centroid_lat != 0) {
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$this->centroid = array(
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'lng' => $centroid_lng,
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'lat' => $centroid_lat,
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'elv' => 0
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);
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}
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return $this->centroid;
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}
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/**
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* Define Polygon Area
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* @return type
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*/
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public function define_area()
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{
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if (!empty($this->area)) {
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return $this->area;
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}
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if (empty($this->polygon)) {
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$this->polygon = $this->define_polygon();
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}
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// Based on: http://forums.devnetwork.net/viewtopic.php?f=1&t=44074
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$n = is_countable($this->polygon) ? count($this->polygon) : 0;
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$area = 0.0;
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// Set $p as Polygon and Add Closing Point
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$p = $this->polygon;
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$p[] = $p[0];
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for ($i = 0; $i < $n; $i++) {
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$j = ($i + 1);
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$area += $p[$i]['lng'] * $p[$j]['lat'];
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$area -= $p[$i]['lat'] * $p[$j]['lng'];
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}
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$area /= 2;
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$this->area = abs($area);
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return $this->area;
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}
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/**
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*
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* Define Marker Location
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* @param $marker mixed (array or object)
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*/
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public function define_loc($marker = array())
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{
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$loc = array();
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if (is_object($marker)) {
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$loc['name'] = $marker->name;
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$loc['lat'] = $marker->jjwg_maps_lat;
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$loc['lng'] = $marker->jjwg_maps_lng;
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} elseif (is_array($marker) && !empty($marker)) {
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$loc['name'] = $marker['name'];
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$loc['lat'] = $marker['lat'];
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$loc['lng'] = $marker['lng'];
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} else {
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$loc['name'] = '';
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if (is_null($this->centroid)) {
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$loc['lat'] = null;
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$loc['lng'] = null;
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} else {
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$loc['lat'] = $this->centroid['lat'];
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$loc['lng'] = $this->centroid['lng'];
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}
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}
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if (empty($loc['name'])) {
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$loc['name'] = 'N/A';
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}
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if (!$this->is_valid_lat($loc['lat'])) {
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$loc['lat'] = $this->settings['map_default_center_latitude'];
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}
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if (!$this->is_valid_lng($loc['lng'])) {
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$loc['lng'] = $this->settings['map_default_center_longitude'];
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}
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return $loc;
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}
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/**
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*
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* Check for valid longitude
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* @param $lng float
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*/
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public function is_valid_lng($lng)
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{
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return (is_numeric($lng) && $lng >= -180 && $lng <= 180);
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}
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/**
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*
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* Check for valid latitude
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* @param $lat float
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*/
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public function is_valid_lat($lat)
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{
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return (is_numeric($lat) && $lat >= -90 && $lat <= 90);
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}
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/**
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* Determine if Marker Object is in Area (Polygon)
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* @param object $marker
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*/
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public function is_marker_in_area($marker)
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{
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$loc = array();
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if (is_object($marker)) {
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$loc['lat'] = $marker->jjwg_maps_lat;
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$loc['lng'] = $marker->jjwg_maps_lng;
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} elseif (is_array($marker)) {
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$loc['lat'] = $marker['lat'];
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$loc['lng'] = $marker['lng'];
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}
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return $this->is_point_in_area($loc['lng'], $loc['lat']);
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}
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/**
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* Determine if lng/lat point is in Area Polygon
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*
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* @param float $lng
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* @param float $lat
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*/
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public function is_point_in_area($lng, $lat)
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{
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// lng,lat,elv
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$point = $lng.','.$lat.',0.0';
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return $this->point_in_polygon($point);
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}
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/**
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* Determine if Point lies within Polygon
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*
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* Polygon Algorithm: http://assemblysys.com/php-point-in-polygon-algorithm/
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* Modified by JJWDesign 07/16/2013
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*
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* @param string $point
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* @param boolean $point_on_vertex
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* @return boolean
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*/
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public function point_in_polygon($point, $point_on_vertex = true)
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{
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$this->point_on_vertex = $point_on_vertex;
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$polygon = preg_split('/[\s]+/', (string) $this->coordinates);
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// Chek $polygon count
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if (!((is_countable($polygon) ? count($polygon) : 0) > 1)) {
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return false;
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}
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// Add the first point to the end, in order to properly close the loop completely
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if ($polygon[(is_countable($polygon) ? count($polygon) : 0)-1] !== $polygon[0]) {
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$polygon[] = $polygon[0];
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}
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// Transform string coordinates into arrays with x and y values
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$point = $this->point_string_to_coordinates($point);
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$vertices = array();
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foreach ($polygon as $vertex) {
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$vertices[] = $this->point_string_to_coordinates($vertex);
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}
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// Check if the point sits exactly on a vertex
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if ($this->point_on_vertex == true && $this->point_on_vertex($point, $vertices) == true) {
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return true;
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}
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// Check if the point is inside the polygon or on the boundary
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$intersections = 0;
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$vertices_count = count($vertices);
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for ($i=1; $i < $vertices_count; $i++) {
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$vertex1 = $vertices[$i-1];
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$vertex2 = $vertices[$i];
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if ($vertex1['y'] == $vertex2['y'] && $vertex1['y'] == $point['y'] && $point['x'] > min($vertex1['x'], $vertex2['x']) && $point['x'] < max($vertex1['x'], $vertex2['x'])) { // Check if point is on an horizontal polygon boundary
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return true;
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}
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if ($point['y'] > min($vertex1['y'], $vertex2['y']) && $point['y'] <= max($vertex1['y'], $vertex2['y']) && $point['x'] <= max($vertex1['x'], $vertex2['x']) && $vertex1['y'] != $vertex2['y']) {
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$xinters = ($point['y'] - $vertex1['y']) * ($vertex2['x'] - $vertex1['x']) / ($vertex2['y'] - $vertex1['y']) + $vertex1['x'];
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if ($xinters == $point['x']) { // Check if point is on the polygon boundary (other than horizontal)
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return true;
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}
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if ($vertex1['x'] == $vertex2['x'] || $point['x'] <= $xinters) {
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$intersections++;
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}
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}
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}
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// If the number of edges we passed through is odd, then it's in the polygon.
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if ($intersections % 2 != 0) {
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return true;
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} else {
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return false;
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}
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}
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public function point_on_vertex($point, $vertices)
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{
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foreach ($vertices as $vertex) {
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if ($point == $vertex) {
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return true;
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}
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}
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}
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public function point_string_to_coordinates($pointString)
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{
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// Coordinate Results (lng,lat,elv)
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$coordinates = preg_split('/[,]+/', (string) $pointString);
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return array("x" => $coordinates[0], "y" => $coordinates[1]);
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}
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}
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