elevation | Plan observations of comets and asteroids with this web app | Dataset library
kandi X-RAY | elevation Summary
kandi X-RAY | elevation Summary
Simple web app to plot elevation and transit time, with special attention given to Solar System objects. Solar System ephemerides are from the Minor Planet and Comet Ephemeris Service at the Minor Planet Center (MPC). Ephemeris for the Sun and some astronomical methods from Astronomical Algorithms by Jean Meeus.
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Top functions reviewed by kandi - BETA
- Thresholds the current date .
- Tests a time part of a language .
- add a new b to b
- Converts time duration into an ISO format .
- Recursively replace a and array
- Calculate the c b .
- Zo data in timezone
- Calculate the inverse of a number
- updates and b .
- Parse month and return an array of days
elevation Key Features
elevation Examples and Code Snippets
Community Discussions
Trending Discussions on elevation
QUESTION
When I double click the same item or if I go to each composable screen very quickly i receive an error, How do I solve this problem? I tried changing few things but I just can't solve it and I can't find any resources to fix this problem.
Bottom Navigation implementation
...ANSWER
Answered 2022-Mar-06 at 09:39I'm facing the same problem using the latest compose navigation dependency 2.5.0-alpha03.
I don't know why it's happening.
Philip Dukhov is right, you should report this issue.
Here is a dirty workaround :
QUESTION
I am trying to render the world map with elevation data using D3.
For this I use Natural Earth 50m land geojson : https://github.com/martynafford/natural-earth-geojson/tree/master/50m/physical
And Natural Earth elevation raster data : https://www.naturalearthdata.com/downloads/50m-raster-data/50m-shaded-relief/
I am using this tutorial : https://datawanderings.com/2020/08/08/raster-backgrounds/
So I first found the bounds of the geojson :
...ANSWER
Answered 2022-Mar-20 at 08:06A Mercator is usually clipped at roughly 85 degrees North/South (~85.05113 N/S) - as further than this you get a map that is taller than it is wide, and one that gets much much taller for every extra degree north/south included in the extent..
D3 clips features using this limit:
The spherical Mercator projection. Defines a default projection.clipExtent such that the world is projected to a square, clipped to approximately ±85° latitude.
The northern bounds are fine, but the southern bounds of the geojson is -89.998926 degrees which you use to cut the image. But as D3 clips the geojson, your stretching the image by a different amount as compared with the geojson, hence the issue you see.
The solution should be to clip the image to a bounds that is representative of the limits of what D3 will render for a Mercator (85.05113 degrees south) not the limits of the data itself.
I haven't looked up how faithfully gdal implements EPSG:3395 as the definition provides for a projected bounds of 80 degrees south and 84 degrees north - though looking at the image, this doesn't appear to be an issue.
You can also use the cleaner fitSize methods for D3 projections (d3v4+):
QUESTION
Lidar data is simply 3d coordinates, usually in las file format. Сontent example
ANSWER
Answered 2022-Mar-19 at 08:58Please find below one possible solution to get a data.table,data.frame with all the information. You can use as.data.frame() to get a pure data.frame but a data.table is a data.frame
Reprex
NB: I used a .las dataset built in the lidR library as it is more convenient.
- The example dataset from
lidR
QUESTION
The component is not rerendering after the deletion of an element in the state but the state does change. In the component, you can add an element in the array (which is a state) through form, see all the elements in the array, and delete it from the state using the button. So after deleting an element that is in the state, the component does not rerender. Following is the code of the component:
...ANSWER
Answered 2022-Feb-19 at 15:21React will not re-render, cause it is like nothing has changed, that is every time you give the same state to a setState. For primitive types like String, Boolean... it is obvious to know if we are giving different values or not. For reference types like Array, Object... in the other hand, changing their content don't flag them as different value for React. It should be a different reference.
As you are doing, you are giving the same memory reference to setSubNames.
QUESTION
I want to display a mapped list where "UserName" is an entry value from a Firebase Realtime Database corresponding to the author of each entry.
The following code, inside the get(UsernameRef).then((snapshot) =>{}) scope, returns an undefined reference error as expected, 'UserName' is assigned a value but never used and 'UserName' is not defined
ANSWER
Answered 2022-Feb-17 at 01:23This is a tricky one - the plainest option might be to move push() and setRecipeLibrary() inside the then() callback so they're all within the same scope, but that would have some terrible side effects (for example, triggering a re-render for every recipe retrieved).
The goal (which you've done your best to achieve) should be to wait for all the recipes to be loaded first, and then use setRecipeLibrary() to set the full list to the state. Assuming that get() returns a Promise, one way to do this is with await in an async function:
QUESTION
I'm trying to make a grid of cards that hold an image and a title using Vuetify.
I have managed to make a grid with the help of a few examples and managed to make this (This is on breakpoint XL):
But the problem is that, if the screen goes smaller, the grid isn't much of a grid anymore, but rather looks like this (this is on breakpoint LG):
I'm using justification: space-between but if I use start this is the result:
My goal is to have a grid aligned with the v-divider above and also is justified in the start without the awkward gap in the second row in the LG breakpoint.
Here's my code:
...ANSWER
Answered 2022-Feb-07 at 08:49Like the second v-row write below condition for first v-row:
QUESTION
import 'package:flutter/cupertino.dart';
import 'package:flutter/material.dart';
import 'info.dart';
void main() => runApp(MyApp());
class MyApp extends StatefulWidget {
@override
State createState() => MyAppState();
}
class MyAppState extends State {
List li = [
info(name: 'text1', length: 170, date: DateTime.now()),
info(name: 'text2', length: 175, date: DateTime.now()),
info(name: 'text3', length: 180, date: DateTime.now()),
info(name: 'text4', length: 180, date: DateTime.now()),
info(name: 'text5', length: 180, date: DateTime.now()),
info(name: 'text6', length: 180, date: DateTime.now()),
info(name: 'text7', length: 180, date: DateTime.now()),
info(name: 'text8', length: 180, date: DateTime.now()),
info(name: 'text9', length: 180, date: DateTime.now()),
];
void x (BuildContext ctx){
showModalBottomSheet(context: ctx, builder: (ctx){
return ListView.builder(
itemCount: li.length,
itemBuilder: (cx , index){
return Padding(
padding: EdgeInsets.all(10.0),
child: Card(
shadowColor: Colors.red,
elevation: 10.0,
color: Colors.blue,
child: Padding(
padding: const EdgeInsets.all(8.0),
child: Column(
children: [
Row(
mainAxisAlignment: MainAxisAlignment.spaceAround,
children: [
Text(
li[index].name,
style: TextStyle(color: Colors.white, fontSize: 20),
),
Text(
'${li[index].length}',
style: TextStyle(color: Colors.white, fontSize: 20),
),
],
),
Text(
'${li[index].date}',
style: TextStyle(color: Colors.white, fontSize: 20),
),
],
),
),
),
);
},
);
});
}
@override
Widget build(BuildContext context) {
return MaterialApp(
title: 'App name',
home: Scaffold(
appBar: AppBar(
title: Text('This is the App bar'),
),
body: Container(
padding: EdgeInsets.all(10.0),
height: double.infinity,
color: Colors.black,
),
floatingActionButton: FloatingActionButton(
child: Icon(Icons.add),
onPressed: () => x(context)
),
),
);
}
}
ANSWER
Answered 2021-Aug-03 at 13:16This is a common mistake that happens when using Inherited Widgets like MediaQuery. Now you may not be using it explicitly but from your description it seems that Flutters' showModalBottomSheet method maybe using it.
The error is telling you that no MediaQuery ancestor(i.e. WidgetsApp, CupertinoApp or MaterialApp) could be found above context. It means above this context:
QUESTION
I am trying to apply Jetpack Compose navigation into my application.
My Screens: Login/Register screens and Bottom navbar screens(call, chat, settings).
I already found out that the best way to do this is using nested graphs.
But I keep getting ViewModelStore should be set before setGraph call exception. However, I don't think this is the right exception.
My navigation is already in the latest version. Probably my nested graph logic is not right.
Requirement: I want to be able to navigate from the Login or Register screen to any BottomBar Screen & reverse
...ANSWER
Answered 2021-Nov-13 at 16:37Nesting of NavHost is not allowed. It results in ViewModelStore should be set before setGraph call Exception. Generally, the bottom nav is outside of the NavHost, which is what the docs show. The recommended approach is a single NavHost, where you hide and show your bottom nav based on what destination you are on.
QUESTION
I have 2 rows in my screen, the first row is consist of dropdown button and elevation button and the second row is where the stream builder located, I used flexible so that the stream builder is scrollable. What I want is every time I scroll the stream builder I want the first row to follow the scroll not stay in the screen.
This is how my widget set:
...ANSWER
Answered 2022-Jan-20 at 05:56Inside Listview add physics: NeverScrollableScrollPhysics()
// Listview( physics: NeverScrollableScrollPhysics(), return .....; ) //
Follow this pattern.
QUESTION
I have created a page in which there is search bar and then the listview builder which is building items of List coming from provider class. When I tap on search bar, the keyboard appears ,suddenly disappears and page refreshes. when page is refreshed, first it shows circularprogressIndicator and then regular ListView.builder.
Kindly Help.
Thank you in advance!
ANSWER
Answered 2022-Jan-16 at 07:55future builder trigger on every build. so when you click on searchBox the keyboard changes screen size and Expanded rebuild futureBuilder.
Replace below part of future Builder
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