<?php
// +-------------------------------------------------+
// © 2002-2010 PMB Services / www.sigb.net pmb@sigb.net et contributeurs (voir www.sigb.net)
// +-------------------------------------------------+
// $Id: map_hold_linestring.class.php,v 1.1 2014-12-12 13:08:02 ngantier Exp $

if (stristr($_SERVER['REQUEST_URI'], ".class.php")) die("no access");
require_once($class_path."/map/map_hold.class.php");


/**
 * class map_hold_linestring
 * Classe représentant une ligne
 */
class map_hold_linestring extends map_hold {

	/** Aggregations: */
	
	/** Compositions: */
	
	/*** Attributes: ***/
	
	
	/**
	 *
	 *
	 * @return string
	 * @access public
	 */
	public function get_hold_type() {
		
		return "LINESTRING";
		
	} // end of member function get_hold_type

	protected function build_coords(){
  		$coords_string = substr($this->wkt,strpos($this->wkt,"(")+1,-1);
  		$coords = explode(",",$coords_string);
  		$this->coords =array();
  		for($i=0 ; $i< count($coords) ; $i++){
  			$infos =array();
  			$coord = $coords[$i];
  			$infos = explode(" ",$coord);
  			$this->coords[] = new map_coord($infos[0],$infos[1]);
  		}
  		$this->coords_uptodate = true;
  	}
	
	protected function build_wkt(){
		$this->wkt = $this->get_hold_type()."(";
		$tmp_wkt = "";
		foreach($this->coords as $coord){
			if ($tmp_wkt != "") $tmp_wkt .= ",";
			$tmp_wkt.= $coord->get_decimal_lat()." ".$coord->get_decimal_long();
		}
		$this->wkt.= $tmp_wkt.")";
		$this->wkt_uptodate = true;
	}

} // end of map_hold_linestring