Observation chart - X-Axis labeling

[PhillipsOwen]

from RL:

the station time series plots in apsviz appear to use a time interval of 29 hrs.

is it possible to make them correspond to even days?

[BrianOBlanton]

@PoWen can you please try setting these properties for the xaxis in the time series chart?

interval={23}
angle={-90}

the "23" should put a tick at every 6-hour time.

[BrianOBlanton]

Let's try this function for setting xtick positions. it's not great, but should work for now.

function get_xtick_interval(data){
var T, dt, intv, i1h, fac
//time resolution in minutes
dt = Math.abs((new Date(data[0].time) - new Date(data[1].time))) / (1000 * 60);
// data length in "days"
T = (data.length-1) * dt/24/60
T = Math.max(Math.ceil(Math.log2(T)),1)
// number of times in 1 hr in min
i1h = 60 / dt
intv=i1h-1; // default to daily
if ( T <= 0.5) { // all ticks
intv= 0;
}
else if ( T <= 1) { // 1 hourly ticks
intv = i1h-1;
}
else if ( T <= 3) { // 6-hourly ticks
intv = i1h6-1;
}
else if ( T <= 4) { // 12-hourly ticks
intv = i1h12-1;
}
return intv;
}

[PhillipsOwen]

thanks i will pump it in and send you the result.