{HELP}WLK Reader

[bayu]

Im now developing WLK reader, Just like Ruys mine, But daily summery2 for dailytotalET is minus, -32768; than number store on short data type and i think variable is over flow because that storing 1/1000 inc of ET, i just have no idea about that,. please some body help me?

and if you how to count or calculate ET manually just let me know


Regard
bayu wibowo

[Bushman]

Best ET calc:  http://en.wikipedia.org/wiki/Penman–Monteith_equation

[Weather Display]

if you are getting  a value like that it means its going out of bounds on a signed smallint
the ET is stored with the Forecast string number, so you will need to do some bitwise to parse it out

[bayu]

thank all, but data is read by 8bit integer... Im working on it

[jruys]

In a WLK file, -32768, is the value that is inserted if there is no value to stored, it is basically a null value.  Do you have a solar sensor?  If you do not, you won't have an ET value and it will be -32768, most of the other short int values (with the exceptions of lows) use that value if nothing is stored. 

[bayu]

Tanks Ruys...