Gerry Creager <[EMAIL PROTECTED]> wrote: Matt Werner wrote:
I have a 2000 but currently have the wind sensor disconnected (it's
under repair).
It would be nice to have the ability to tell xastir which sensors to
report and which to ignore. Peet's data structure naturally doesn't
change it's format when the sensors are unplugged, it just reports no
data for them.
Having spent a fair bit of time w/ Davis yesterday getting them to
update their windows s/w for APRS-WX/CWOP... if I can find Peet at the
American Meteorological Society meeting, I've some requests for them,
too! And you just raised a key one. We should have a standard value for
*Missing Data* such as, -99999 (which is, in fact, one such well
recognized value in the meteorological community).
The difference between 0 and 'no data' is significant but xastir
doesn't recognize it.
The code currently appears to expect a string of dashes '--' in fields to
indicate missing data. Here's a snippet from wx.c:
// 006B 00 58
// 00A4 00 46 01FF 380E 2755 02C1 03E8 ---- 0052 04D7 0001 007BM
// ^ ^ ^ ^ ^ ^ ^
// 0 6 8 12 16 24 40
/* wind speed */
if (data[0] != '-') { // '-' signifies invalid data
substr(temp_data1,(char *)data,4);
...but it doesn't seem to be uniformly implemented, and the ultimeter
outputs zeroes for many missing sensors.
--
Rick Green, N8BJX
"Those who would give up essential Liberty, to purchase a little
temporary Safety, deserve neither Liberty nor Safety."
-Benjamin Franklin
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