[Phphtmllib-devel] SF.net SVN: phphtmllib:[3524] trunk/open2300/lib/modules/api/ AviationWeather.inc

[<he...@us...>]

Revision: 3524
          http://phphtmllib.svn.sourceforge.net/phphtmllib/?rev=3524&view=rev
Author:   hemna
Date:     2010-06-28 23:25:24 +0000 (Mon, 28 Jun 2010)

Log Message:
-----------
new d_alt

Modified Paths:
--------------
    trunk/open2300/lib/modules/api/AviationWeather.inc

Modified: trunk/open2300/lib/modules/api/AviationWeather.inc
===================================================================
--- trunk/open2300/lib/modules/api/AviationWeather.inc	2010-06-28 23:22:38 UTC (rev 3523)
+++ trunk/open2300/lib/modules/api/AviationWeather.inc	2010-06-28 23:25:24 UTC (rev 3524)
@@ -705,34 +705,6 @@
 	}
 
 
-	/**
-	 * 
-	 * @param unknown_type $altitude -- airport altitude
-	 * @param unknown_type $Pmb -- pressure in millibars
-	 * * @param unknown_type $PinHg -- pressure in inches of Mercury
-	 * @param unknown_type $temp -- degress Celcius
-	 * @param unknown_type $dewpoint -- degress Celcius
-	 * @return unknown_type
-	 * 
-	 * @link http://www.4wx.com/wxcalc/formulas/densityAltitude.php
-	 */
-	protected function density_altitude($altitude, $Pmb, $PinHg, $tempC, $dewC) {
-		$this->e_calc($altitude, $Pmb, $PinHg, $tempC, $dewC);
-		
-		//get vapor pressure ($Vp)
-		$Vp = $this->vapor_pressure($dewC);	
-
-		//get virtual Temp $Tv (in Kelvin)
-		$TvK = ($tempC / (1-($Vp / $Pmb) * (1-0.622)));
-		
-		//convert temp to Rankine
-		$TvR = (9/5) * ($TvK + 764.84);
-		
-		//get density altitude
-		$Ad = 145366 * ( 1 - pow( ((17.326*$PinHG) / $TvR), 0.235)   );
-		
-		return $Ad;
-	}
 	
 	
    private function vapor_pressure($dewC) {
@@ -814,7 +786,7 @@
 	}
 	
 	
-	private function e_calc($altitude, $Pmb, $PinHg, $tempC, $dewC) {
+	private function density_altitude($altitude, $Pmb, $PinHg, $tempC, $dewC) {
 
 		$in_per_mb = (1/33.86389);		
 		$mb_per_in = 33.86389;


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