r 78

Temperature Conversions added.
-Kelvin to Celcius
-Celcius to Farhenheit
-Farhenheit to Celcius

getQFE modified to use new atmosphere function to return pressure. Will
use QNH as defined in editor to figure out QFE if function doesn't
return anything.

added mist.utils.converter() and shortcut mist.converter().
This function is a shortcut based method of converting a coordinate from
one format to another. Conversions exist for distance, temperature,
pressure, and speed. I may need to double check some conversions. :)

mist.lua

@@ -35,7 +35,7 @@ mist = {}
 -- don't change these
 mist.majorVersion = 4
 mist.minorVersion = 4
-mist.build = 77
+mist.build = 78
 
 -- forward declaration of log shorthand
 local log
@@ -3701,15 +3701,170 @@ do -- mist.util scope
 		return kmph/3.6
 	end
 	
-	function mist.utils.getQFE(point, inchHg)
-		local h = land.getHeight(mist.utils.makeVec2(point))/0.3048 -- convert to feet
-		local qnh = env.mission.weather.qnh
-		
-		if inchHg then
-			return (qnh - (h/30)) * 0.0295299830714
-		else
-			return qnh - (h/30)
+	function mist.utils.kelvinToCelcius(t)
+		return t - 273.15
+	end
+	
+	function mist.utils.FarenheitToCelcius(f)
+		return (f - 32) * (5/9)
+	end
+	
+	function mist.utils.celciusToFarenheit(c)
+		return c*(9/5)+32
+	end
+	
+	function mist.utils.converter(t1, t2, val)
+		if type(t1) == 'string' then
+			t1 = string.lower(t1)
 		end
+		if type(t2) == 'string' then
+			t2 = string.lower(t2)
+		end
+		if val and type(val) ~= 'number' then
+			if tonumber(val) then
+				val = tonumber(val)
+			else
+				log:warn("Value given is not a number: $1", val)
+				return 0
+			end
+		end
+		
+		-- speed
+		if t1 == 'mps' then
+			if t2 == 'kmph' then
+				return val * 3.6
+			elseif t2 == 'knots' or t2 == 'knot' then
+				return val * 3600/1852
+			end
+		elseif t1 == 'kmph' then
+			if t2 == 'mps' then
+				return val/3.6
+			elseif t2 == 'knots' or t2 == 'knot' then
+				return  val*0.539957
+			end
+		elseif t1 == 'knot' or t1 == 'knots' then
+			if t2 == 'kmph' then
+				return val * 1.852
+			elseif t2 == 'mps' then
+				return  val * 0.514444	
+			end
+			
+		-- Distance
+		elseif t1 == 'feet' or t1 == 'ft' then
+			if t2 == 'nm' then
+				return val/6076.12
+			elseif t2 == 'km' then
+				return (val*0.3048)/1000
+			elseif t2 == 'm' then
+				return val*0.3048
+			end
+		elseif t1 == 'nm' then
+			if t2 == 'feet' or t2 == 'ft' then
+				return val*6076.12
+			elseif t2 == 'km' then
+				return val*1.852
+			elseif t2 == 'm' then
+				return val*1852
+			end
+		elseif t1 == 'km' then
+			if t2 == 'nm' then
+				return val/1.852
+			elseif t2 == 'feet' or t2 == 'ft' then
+				return	(val/0.3048)*1000
+			elseif t2 == 'm' then
+				return val*1000
+			end
+		elseif t1 == 'm' then
+			if t2 == 'nm' then
+				return val/1852
+			elseif t2 == 'km' then
+				return val/1000
+			elseif t2 == 'feet' or t2 == 'ft' then
+				return val/0.3048
+			end
+			
+		-- Temperature
+		elseif t1 == 'f' or t1 == 'farenheit' then
+			if t2 == 'c' or t2 == 'celcius' then
+				return (val - 32) * (5/9)
+			elseif t2 == 'k' or t2 == 'kelvin' then
+				return (val + 459.67) * (5/9)
+			end
+		elseif t1 == 'c' or t1 == 'celcius' then
+			if t2 == 'f' or t2 == 'farenheit' then
+				return val*(9/5)+32
+			elseif t2 == 'k' or t2 == 'kelvin' then
+				return val + 273.15
+			end
+		elseif t1 == 'k' or t1 == 'kelvin' then
+			if t2 == 'c' or t2 == 'celcius' then
+				return val - 273.15
+			elseif t2 == 'f' or t2 == 'farenheit' then
+				return ((val*(9/5))-459.67)
+			end
+		
+		-- Pressure
+		elseif t1 == 'p' or t1 == 'pascal' or t1 == 'pascals' then
+			if t2 == 'hpa' or t2 == 'hectopascal' then
+				return val/100
+			elseif t2 == 'mmhg' then
+				return val * 0.00750061561303
+			elseif t2 == 'inhg' then
+				return val * 0.0002953
+			end
+		elseif t1 == 'hpa' or t1 == 'hectopascal' then
+			if t2 == 'p' or t2 == 'pascal' or t2 == 'pascals' then
+				return val*100
+			elseif t2 == 'mmhg' then
+				return val * 0.00750061561303
+			elseif t2 == 'inhg' then
+				return val * 0.02953
+			end
+		elseif t1 == 'mmhg' then
+			if t2 == 'p' or t2 == 'pascal' or t2 == 'pascals' then
+				return  val / 0.00750061561303
+			elseif t2 == 'hpa' or t2 == 'hectopascal' then
+				return val * 1.33322
+			elseif t2 == 'inhg' then
+				return val/25.4
+			end
+		elseif t1 == 'inhg' then
+			if t2 == 'p' or t2 == 'pascal' or t2 == 'pascals' then
+				return val*3386.39
+			elseif t2 == 'mmhg' then
+				return val*25.4
+			elseif t2 == 'hpa' or t2 == 'hectopascal' then
+				return val * 33.8639
+			end
+		else
+			log:warn("First value doesn't match with list. Value given: $1", t1)
+		end
+		log:warn("Match not found. Unable to convert: $1 into $2", t1, t2)
+	
+	end
+	
+	mist.converter = mist.utils.converter
+	
+	function mist.utils.getQFE(point, inchHg)
+		
+		local t, p = 0, 0
+		if atmosphere.getTemperatureAndPressure then
+		end
+		if p == 0 then
+			local h = land.getHeight(mist.utils.makeVec2(point))/0.3048 -- convert to feet
+			if inchHg then
+				return (env.mission.weather.qnh - (h/30)) * 0.0295299830714
+			else
+				return env.mission.weather.qnh - (h/30)
+			end
+		else 
+			if inchHg then
+				return mist.converter('p', 'inhg', p)
+			else
+				return mist.converter('p', 'hpa', p)
+			end
+		end
+
 	end
 	--- Converts a Vec3 to a Vec2.
 	-- @tparam Vec3 vec the 3D vector
@@ -6579,10 +6734,12 @@ do -- group tasks scope
 	end
 
 	function mist.getLeadPos(group)
+		env.info(group)
 		if type(group) == 'string' then -- group name
+			env.info('isstring')
 			group = Group.getByName(group)
 		end
-
+		
 		local units = group:getUnits()
 
 		local leader = units[1]