Rise/transit/set as 'wait' command argument
| Affects | Status | Importance | Assigned to | Milestone | |
|---|---|---|---|---|---|
| Nightshade Legacy |
New
|
Wishlist
|
Unassigned | ||
Bug Description
I think it would be helpful to have additional argument values to 'wait' command with 'until' argument name according to certain phenomena.
Example:
I'm writing a script which has 'date load current' command at the beginning. I want to say few introductory words to the public first, then fast forward to Sun's transit with meridian visible. Now I'm doing it so: timerate rate 1800, meridian on after 3 seconds, pause on remote when Sun is on meridian. Then I want to let the Sun quickly set and stop when it's on the horizon.
Rob Spearman proposed a workaround for this (https:/
Is it possible to add something like:
wait until BODY altitude x azimuth y
for given BODY - planet, Sun, Moon, named/HP number star; altitude/azimuth could be used together or interchangeable (alt+az, alt, az)
or even:
wait until BODY transit/rise/set
for the Sun and/or the Moon?
| Rob Spearman (rob-digitaliseducation) wrote | #1 |
| Changed in nightshade: | |
| importance: | Undecided → Wishlist |
Lionel wrote:
"I agree with Rob that using it in a wait command would be difficult and hasardous to do the job.
What I propose would be to have a command that move the date to the rise/set/transit of the sun.
That's correponding to the needs of many users. Other options would be more complex and not that useful."
I simply wanted the feature to be well defined before we decide how best to implement it.
A suggest from another planetarian was that scripting support advancing to a time where a particular body had a given altitude above the horizon. This would allow an easy way to show the Sun position at sunrise throughout a year, etc. Obviously there would need to be a distinction between rise and set altitudes.
One risk is that the altitude never matches, so there needs to be a way to prevent getting stuck.
Also, it should be possible to put a duration on the date/time change to make this a smooth transition.