Hi folks!
what would be best way to reverse "astro" function?
for example - I want to use as input: mercury, geo, location values, longitude value, etc, etc
and get back array of dates and times when mercury is at position with longitude equal to input value....
Any ideas?
Regards,
Ev
Reversed "astro" function
Re: Reversed "astro" function
Hi Ev,
I am not sure I understand what you mean by "input value." You can just do a simple plot of something like this:
Then when applied to a daily chart, you can see the jump when going retrograde. But I don't think this is really what you are looking for...
I am not sure I understand what you mean by "input value." You can just do a simple plot of something like this:
Code: Select all
wave_long = astro(year, month, day, time, astro_mercury, true, astro_long , true);
plot1 = wave_long;
Re: Reversed "astro" function
Big pardon for broken english )
I need to know date and time when helio Merc is 237.35 degrees (for example) to draw trendlines backwards from there
I need to know date and time when helio Merc is 237.35 degrees (for example) to draw trendlines backwards from there
Last edited by en1940 on Mon Mar 26, 2018 5:32 pm, edited 1 time in total.
Re: Reversed "astro" function
Hi Ev,
You're asking for an aspectarian. That's sort of what the ephemeris does in the panel on the right. But to do it from a chart, you'd have to write a script to solve for the aspects you were looking for, then spit that information out to a file or the print log. It would involve setting up a loop, sort of like this:
I just wrote that off the top of my head to give you a starting point, so there might be typos in there, but it should be pretty close. Basically, you are using an indicator to run a loop where you search for your aspects. It's going to take some time, so you only want to do it once, which is why I stuffed it all inside the "if (barnum == barsback)" section.
It's not exactly what QScript was meant for, which is why it can be a little clunky, but it's definitely doable.
Hope that helps.
Earik
You're asking for an aspectarian. That's sort of what the ephemeris does in the panel on the right. But to do it from a chart, you'd have to write a script to solve for the aspects you were looking for, then spit that information out to a file or the print log. It would involve setting up a loop, sort of like this:
Code: Select all
if (barnum == barsback) {
# use julian days for a loop. this example goes from the year 2000 to 2020
jd1 = julianday(2000,1,1,1200);
jd2 = julianday(2020,1,1,1200);
old_mercury = 0; # holds previous value of mercury
mercury = astro(2000,1,1,1200,astro_mercury,true,astro_rd,true);; # holds current value of mercury
aspect_to_find = 237.35;
for (jd = jd1 to jd2) {
y = julian_to_year(jd);
m = julian_to_month(jd);
d = julian_to_day(jd);
old_mercury = mercury;
mercury = astro(y,m,d,1200,astro_mercury,true,astro_rd,true);
# look for the conditions
have_an_aspect = false;
if ((mercury >= aspect_to_find) and (old_mercury < aspect_to_find)) #direct motion trigger
have_an_aspect = true;
if ((mercury <= aspect_to_find) and (old_mercury > aspect_to_find)) #retrograde motion trigger
have_an_aspect = true;
#if we have a hit, record it somewhere
if (have_an_aspect == true)
print("Aspect on ",y," ",m," ",d);
}
}
plot1= close; # put this in there so you know when you're done
It's not exactly what QScript was meant for, which is why it can be a little clunky, but it's definitely doable.
Hope that helps.
Earik
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