One off variable

[veldthui]

I am trying to get a payload weight for my program but only want to get it once at a certain point.
I understand that I have to read the payload station count and then go through each of the stations to add them all up for the combined weight.
I was just wondering which call do I use to get data once only? I already have a loop that is running reading a set of data every second for fuel weight.

I would like to call the routine to first read the count of stations and then another call to read the correct amount of station weights. Dont want to read more than needed.

 

[Pete Dowson]

I am trying to get a payload weight for my program but only want to get it once at a certain point.

Look up the SimConnect_RequestDataOnSimObject call and check the SIMCONNECT_PERIOD enumeration type -- just set it to SIMCONNECT_PERIOD_ONCE. It is all clear in the documentation.

I understand that I have to read the payload station count and then go through each of the stations to add them all up for the combined weight.

Might be easier and quicker to simply compute it from TOTAL WEIGHT - (EMPTY WEIGHT + TOTAL FUEL QUANTITY WEIGHT).

Regards

Pete

 

[Simon853]

The easiest way I think would be something like this:

static int trigger = 0;


static int totalWeight = 0;

if (trigger != 0)
{
for (int i = 0; i < numStations; i++)
{
totalWeight += aircraft_varget( get_aircraft_var_enum("PAYLOAD STATION WEIGHT"), get_units_enum("pounds"), i);
}
trigger = 0;
}

Somewhere elsewhere in your code you just need to set trigger to non-zero and that code above will then execute once only.

Si

 

[veldthui]

Look up the SimConnect_RequestDataOnSimObject call and check the SIMCONNECT_PERIOD enumeration type -- just set it to SIMCONNECT_PERIOD_ONCE. It is all clear in the documentation.



Might be easier and quicker to simply compute it from TOTAL WEIGHT - (EMPTY WEIGHT + TOTAL FUEL QUANTITY WEIGHT).

Regards

Pete

Thanks, Have got it all working now. I tried your second suggestion before I asked and found that the answer varied all the time. It seems as the fuel and total weight drops it is not the same number (ie dont change the same time) so they get out and you see a number going up and down by a few kgs each second.

Now I calculate it once and display it and if it changes for any reason (ie XPax) then it gets updated like it should.