private static readonly double SIDEREAL_RATE = 0.004178; // degrees per second
public static JogRates DefaultJogRates()
{
JogRates rates = new JogRates
{
new JogRate {
Name = "16X Sidereal", Rate = 0.06685
},
new JogRate {
Name = "64X Sidereal", Rate = 0.26740
},
new JogRate {
Name = "2 deg/sec", Rate = 2.0
}
};
return(rates);
}
private static JogRates CreateDiscreteJogRates(IRate[] axisRates)
{
JogRates jogRates = new JogRates();
foreach (IRate rate in axisRates)
{
// This is a discrete rate value.
JogRate jogRate = BuildJogRate(rate.Minimum);
jogRates.Add(jogRate);
}
if (jogRates.Count == 0)
{
jogRates = null;
}
return(jogRates);
}
public static JogRates FromAxisRates(IRate[] axisRates)
{
JogRates rates = null;
if (axisRates != null && axisRates.Length > 0)
{
rates = new JogRates();
if (AreDiscreteRates(axisRates))
{
rates = CreateDiscreteJogRates(axisRates);
}
else
{
rates = CreateRangedJogRates(axisRates);
}
}
return(rates);
}
private void BuildJogRatesList()
{
JogRates jogRates = null;
if (Capabilities != null)
{
IRate[] primaryAxisRates = Capabilities.PrimaryAxisRates;
jogRates = JogRates.FromAxisRates(primaryAxisRates);
}
if (jogRates == null)
{
JogRates = null;
SelectedJogRate = null;
}
else
{
JogRates = jogRates;
SelectedJogRate = jogRates[0];
}
}
private static JogRates CreateRangedJogRates(IRate[] axisRates)
{
JogRates jogRates = null;
if (axisRates == null || axisRates.Length == 0)
{
return(jogRates);
}
if (axisRates.Length == 1)
{
jogRates = DefaultJogRates();
if (jogRates.First().Rate > axisRates[0].Minimum && jogRates.Last().Rate < axisRates[0].Maximum)
{
// Here the default rates are valid, so use them.
return(jogRates);
}
}
// We can't use the default jog rates, so build a valid list.
// The provided list of valid axis rates consists of multiple ranges so just take the average of each range.
jogRates = new JogRates();
foreach (IRate axisRate in axisRates)
{
double rateValue = (axisRate.Minimum + axisRate.Maximum) / 2.0;
JogRate jogRate = BuildJogRate(rateValue);
jogRates.Add(jogRate);
}
return(jogRates);
}
private void BuildJogRatesLists()
{
JogRates jogRates = null;
JogRates secondaryJogRates = null;
bool asymmetricRates = false;
if (Capabilities != null)
{
// We need to be careful because the jog rates can be null if the telescope does
// not support MoveAxis!
IRate[] primaryAxisRates = Capabilities.PrimaryAxisRates;
jogRates = JogRates.FromAxisRates(primaryAxisRates);
IRate[] secondaryAxisRates = Capabilities.SecondaryAxisRates;
secondaryJogRates = JogRates.FromAxisRates(secondaryAxisRates);
// If we cannot move both primary and secondary axes then we cannot have asymmetric rates.
// This shows up in the jog rates being null.
if (jogRates != null && secondaryJogRates != null)
{
if (jogRates.Count == secondaryJogRates.Count)
{
for (int i = 0; i < jogRates.Count; ++i)
{
if (jogRates[i].Rate != secondaryJogRates[i].Rate)
{
asymmetricRates = true;
break;
}
}
}
else
{
asymmetricRates = true;
}
}
}
if (jogRates == null)
{
JogRates = null;
SelectedJogRate = null;
SecondaryJogRates = null;
SelectedSecondaryJogRate = null;
HasAsymmetricJogRates = false;
}
else
{
JogRates = jogRates;
SelectedJogRate = jogRates[0];
if (asymmetricRates)
{
SecondaryJogRates = secondaryJogRates;
SelectedSecondaryJogRate = secondaryJogRates[0];
}
else
{
SecondaryJogRates = null;
SelectedSecondaryJogRate = null;
}
HasAsymmetricJogRates = asymmetricRates;
}
}