pathy | Simple JSON Validation | JSON Processing library
kandi X-RAY | pathy Summary
kandi X-RAY | pathy Summary
Simple JSON Validation
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Top functions reviewed by kandi - BETA
- Retrieve a value at a given path
- Checks whether the given path is a valid JSON path
- Parse the contents of the object as a string .
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QUESTION
I am trying to simulate 3D plane flight. I have an issue with gamma value (Flight-path angle). It gets out of its bounds and then, the simulation stops. The gamma value is being calculated by this equation:
I turned it into this: m.Equation(gamma.dt()==tf*((L*m.cos(Mu)-mass*g*m.cos(gamma))/mass*V))
The target of the simulation is for the plane to reach certain X an Y values(m.Minimize(w*final*(x-pathx)**2) and m.Minimize(w*final*(pathy-y)**2)), while minimizing fuel consumed m.Maximize(0.2*mass*tf*final).
The solver controls gamma value, by controlling lift coefficient Cl, which affects the lift value L, which, in turn, affects gamma value. The equation that calculates lift L value looks like this: m.Equation(L==0.5*Ro*(V**2)*(Cl)*S). But in the end the solver can not control gamma value till the plane gets to its destination.
What could be messing with it?
My code:
...ANSWER
Answered 2021-May-18 at 06:21I'm not sure exactly what the problem is. It looks like the optimizer is controlling gamma throughout the horizon, and it always stays within its bounds of -0.6 to 1.2. Can you provide more information about what is going wrong?
QUESTION
So I am simulating plane flight. The plane flies certain distance (pathx and pathy variables) and then the simulation stops, when certain pathx and pathy values are reached. The solver is trying to minimize the fuel consumption (m.Maximize(mass*tf*final), by maximizing the mass value. The solver controls the accelerator pedal position (Tcontr).
Right now the termination condition is defined like this:
For X axis:
...ANSWER
Answered 2021-May-07 at 17:19Try adding a hard terminal constraint for both:
QUESTION
Why can't i drop these rows?
...ANSWER
Answered 2020-Jun-30 at 15:06You need to set your "drop" function equal to your table, like this.
table = tables[0].drop(axis = 0, index = droprows)
I would also recommend more explicitly refering to the column that you would like to drop. Specifically, changing:
tables[0] to tables['Unnamed: 0']
QUESTION
I'm trying to generate some kind of "river" polygon based on a path:
- I have a path as an array of points, wich will be one side of the river.
- Based on that path I iterate over its points, move them a little (add a random number, in scale, to the coordinates)
- I store them in another array of points but backwards (what was path[0] should be pathinverted[paht.size.length-1])
- I concatenate both arrays so that they can form a proper polygon
This part is working, the paths are correctly generated. But when I try to add them to a layer it breaks. This is my code:
...ANSWER
Answered 2020-Jun-13 at 01:47As pointed out by GrzegorzT., the issue is in your first part:
QUESTION
One of the configuration scripts from a package in my singularity container contains this perfectly reasonable (to me) bit of bash to trim a trailing / off a path;
ANSWER
Answered 2019-May-30 at 09:50OK, answering my own question because I found something that works;
QUESTION
I have a list of paths. The filenames contain a version number and I want to sort the list by this number.
I tried using List.Sort method as well as the Sort-Object Cmdlet but I have a problem with the syntax when using .NET and I don't know whether Sort-Object supports my needs.
$files conatins the paths and is of type List. Being comfortable with C# I tried something like this:
ANSWER
Answered 2019-Mar-28 at 09:01Try something like this:
QUESTION
I am translating a code from Java to C#/Xamarin, but i am unable to understand the below mentioned code
...ANSWER
Answered 2018-Nov-09 at 15:14I've done this in my port of ViewPagerIndicator for saving state: https://github.com/Cheesebaron/ViewPagerIndicator/blob/master/Library/CirclePageIndicator.cs#L535
So to create your own creator you would do:
QUESTION
ANSWER
Answered 2018-Sep-12 at 07:36Position of the first circle is described as
QUESTION
My code:
...ANSWER
Answered 2018-Jun-08 at 09:34from pathlib import Path
def saveJSONget(site, code):
r = requests.get(site)
json_str = r.text
if r.status_code != code:
Path("PATH").write_text(r.text+"\n")
QUESTION
In my code below I have created an array of items in my .JS file. I was then able to pass this array to the .Jade and use each value in the array as an item in a dropdown list. I now want to pass the user input of which item they will click in the dropdown back to the server side (.js) so that I can use the user input to find more data.
My problem is that I don't know how to send the .jade variables to the server side. I want to send the "this.selectedIndex"/selected "val" so I can use it as a variable in the javascript file.
.JS
...ANSWER
Answered 2018-Mar-14 at 18:06You will need to use some mechanism for communicating from the frontend back to the server. This includes, but is not limited to, websockets and/or AJAX.
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