Sextant | A ReactiveUI navigation library for Xamarin.Forms | Form library
kandi X-RAY | Sextant Summary
kandi X-RAY | Sextant Summary
A ReactiveUI navigation library for Xamarin.Forms
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QUESTION
I am writing a Python program for astronomical navigation using sextant observations as manual input. I use an angular form (ddd mm.m) or degrees, minutes and decimal minutes. I'm using the math library for further computations in my code. What would you suggest I do when the Lat/Lon are implemented in the program convert, them to radians or would decimal degrees be fine?.
My test position DR: 27°40.0'N; 102°22.5'W
...ANSWER
Answered 2019-Oct-16 at 05:16It depends on what you are wanting to do with the values of latitude and longitude later. Normally they are needed for trigonometric functions (sin
, cos
, tan
etc) which will need the arguments to be in radians. This is easy to do with math.radians()
and the result after calculation can be converted back for display with math.degrees()
.
A word of advice: when reading sexagesimal values in parts as you are, you will want to combine the degrees, minutes and seconds (or decimal minutes) to decimal degrees first, then apply negation or a -1
multiplier for your sign convention (North & East +ve in your case; other choices are available for longitude...) if applicable. For example if you had 27deg 45.0' S, you want -1 * (27.0 + (45.0/60.0)) = -27.75
not -27.0 + (45.0/60.0) = -26.25
QUESTION
I created a component and a module for a functionality X and I'm using Vuex for state management. The code works for the every first time insertion, but after this the Getter function always returns the same value of the input before the action ends and commit the mutation.
For example:
1 - everything is [0,0,0] and Getter is [0,0,0]. Insert 9 in the first position and the value is inserted.
2 - On the second time, the check if the value inserted is equal of what is on the state returns true, so we had to remove this verification.
By the way, the state continues to be modified without the action commit the changes to mutation, and when we look to the Getter (who retrieves the value from the state) the value inserted is already returned by the Getter.
Someone know how to fix this?
Here is the code
component:
...ANSWER
Answered 2019-Jul-03 at 20:29only a guess - as i cant debug your code
QUESTION
Code:
...ANSWER
Answered 2017-Mar-12 at 16:35The gradient image used @createimage
not createimagetruecolor
. That is why the colors were being converted.
QUESTION
I have a rails engine, which is mounted in dummy/config/routes.rb
using
ANSWER
Answered 2017-Jan-24 at 14:29If you only want to show your routes in the browser in development mode, there's a rails page which you can call:
http://localhost:3000/rails/info/routes (available since Rails 4)
If you're upgrading from rails 3, you can remove the sextant gem from your gems as this is now part of the rails core.
If you want to show your routes in production to the user, you can implement it like the following: (implemented in bin/rake routes
(here) you can call the same things from your code:)
Controller code:
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