sunrisesunset | Go package that provides the sunrise and sunset equation | Audio Utils library
kandi X-RAY | sunrisesunset Summary
kandi X-RAY | sunrisesunset Summary
:sunrise: Go package that provides the sunrise and sunset equation
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- GetSunriseSunset returns the noon and the given date .
- calcEquationOfTime computes the equation of the multi - factor meters
- minIndex finds the index of a float64 .
- calculateSunTrueLong returns the result of SkyTrueLong .
- calcSunAppLong returns the degrees of the given date .
- calculateObliqCorr returns the obiquiqEcliptic curves
- calculSunDeclination - calculate day - distance between obliqCor
- calculateSunEqCtr - calculateSunEqCtr .
- Abs returns the absolute value of a float .
- checkDate returns true if the given date .
sunrisesunset Key Features
sunrisesunset Examples and Code Snippets
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Trending Discussions on sunrisesunset
QUESTION
I have a Weather project where I have two components. One for day/night timings: SunriseSunset and another for daily forecast: DailyForecast. I need to pass value of time obtained from SunriseSunset to DailyForecast.
Here are the two components for reference:
- SunriseSunset.js (First File) --> Function Component
ANSWER
Answered 2020-Oct-10 at 09:17You should lift the shared state/data up to common ancestor. Here is a working CodeSandbox example.
QUESTION
I would like to be able to change the text on a screen from day to night, depending on the the sun has set, or not. I found this api (https://sunrise-sunset.org/api) and more recently this package sunrise_sunset: "^1.0.3", but I am having difficulty.
This is part of a much bigger project that will be a map (google_maps) that will automatically change theme depending on the time of day(sunrise and sunset)
I know that whenever you use await, you have to make the class async, which I have done, but I am getting errors.
I have simply copied the code in the package example tab into my project
https://pub.dev/packages/sunrise_sunset#-example-tab-
I really am stuck with this, so any help would be very much appreciated.
thanks
...ANSWER
Answered 2019-Nov-11 at 20:191 - don't mark a class as async - only functions can be async.
2 - you should call the package from an async function. The simplest way to do that is from the initState method - note initState itself is not async - so you will need another method.
3 - in that async method, store the results and call setState so that the widget is rebuilt to show them
4 - in build you need to be able to cope with the gap while the results are being fetched - use a progress indicator, etc. (I've just replaced the result with the word working).
QUESTION
I've created a SwiftUI Bindable class with two properties, like
ANSWER
Answered 2019-Jun-08 at 04:39You are calling didChange(self) which causes the error. Call didChange.send(self) instead.
QUESTION
I'm trying to run the sample project located here. However, I'm seeing a
Error:(38, 22) Kotlin: None of the following functions can be called with the arguments supplied:
public final fun and(p0: ((Subscriber!) -> Unit)!): Mono! defined in reactor.core.publisher.Mono
public final fun and(p0: Publisher<*>!): Mono! defined in reactor.core.publisher.Mono
in ApiHandler.kt class in the buildResponse function:
ANSWER
Answered 2017-Oct-04 at 08:01I think this is linked with a Reactor Core API change in 3.1.0.
Mono.and() is no longer an operator that returns Tuples, but it only cares about completion signals now (Mono). You should replace that and() operator with a zip or zipWith operator, as suggested in the Reactor release notes.
QUESTION
I need to calculate the sunrise and sunset times in Matlab, but I a cannot find a correct (and easy) way to do that.
I need to get the same results as can be found in:
https://www.esrl.noaa.gov/gmd/grad/solcalc/ and http://sunrise-sunset.org/api
I already tried to implement a function based on these articles https://en.wikipedia.org/wiki/Sunrise_equation and http://www.wikihow.com/Estimate-the-Time-of-Sunrise-or-Sunset but the results are wrong. (maybe I am doing something wrong)
I also developed a script in Matlab that seems to be more accurate but I still not get the exact sunrise and sunset times:
...ANSWER
Answered 2017-Mar-21 at 21:04You are mixing apples with oranges here!
The formula you are using is calculating the actual sunrise and sunset (geometrically).
The NOAA website gives the apparent sunrise and sunset. These values are corrected for atmospheric refraction!
In the glossary to the NOAA website, it is written:
Due to atmospheric refraction, sunrise occurs shortly before the sun crosses above the horizon. Light from the sun is bent, or refracted, as it enters earth's atmosphere. See Apparent Sunrise Figure. This effect causes the apparent sunrise to be earlier than the actual sunrise. Similarly, apparent sunset occurs slightly later than actual sunset.
So this is exactly the effect you are observing with your calculation error.
If you really want to calculate the apparent sunrise and sunset, refer to the Solar Calculation Details from NOAA itself or this SO answer. But be aware: "... it's complicated!"
EDIT: See my other answer for a precise function to compute the apparent sunrise and sunset in MatLab
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