osm | General purpose library for reading | Map library

I need some clarification on how to properly send queries to my database within RShiny...

I have build-up an application in which anyone can create an account and then write some informations in a dataframe before saving those rows to my database.

The app works perfectly well when testing my it with a single user but shows some issues when several users send data to my database at the same time. All the informations sends are duplicated 2 to 10 times in postgresql...

For instance if I add an unique observation of 5 individuals of species "A" with an observation date on the 25th of february I will get 3 rows (sometimes it can be up to 10 duplicates) in my database instead of one. (like shown in the table below):

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I'm trying to authenticate to OpenStreetMap via OAuth2 using AppAuth. Via Custom Tab I can retrieve the authorization code but the redirect URI does not open my app but gives an Address Not Found error in the Custom Tab. As you can see as I was experimenting around to solve this issue I used app.example.com as host name, although the package name is com.example.app, but even if I do use the package name as host name in the redirect URI (and change this in the manifest, gradle, osm etc.), it still does not work but results in an Invalid Redirect URI error. So I would assume something with the redirect URI isn't quite right, but I cannot figure out what it is.

Also I cannot use a custom scheme, as OSM only accepts https redirect URIs.

MainActivity.java:

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I am trying to create several leaflet maps based on what the user select. I tried to produce a reproducible example. I have a sf with four shapes (i.e., representing four counties in NC). The user can choose to plot one to four maps based on the choice of the county (made through the "checkboxGroupInput". If the user select one county, I should plot one map representing the county the user selected. If the user selected two counties, two maps should be plotted, etc.

I got several lines of code but I could not connect the user selection to my map. Below you can find what I tried to do. Thanks for any help.

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I am struggling with a problem that I am not able to solve. I searched all around the website and web in general and didn't find any solution (maybe this is due to the fact that I doesn't understand well something and I am not able to ask it correctly).

The problem is the following, supposing I have a template class with some parameters, whose one of them is a tempate itself, defined in a class.h file:

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I'm building a Qt 5.11 application which embeds an openstreetmap QML component. I just wrote a minimal reproduce case. It consists in displaying objects (five blue dots here) on the map. When hovering the object, a small popup is displayed with some text.

When objects are close to the edge, the popup is not displayed correctly. I though I would use visibleArea check this, but the property was added in Qt 5.12.

I can't find a solution for the popup to be fully visible. Is there a workaround in Qt 5.11 that I can do? Here the QML file. Just type qmlscene sample.qml and hover blue dots to view it.

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I have a job server running Bull and express.

Server requirements

Receive a request containing an object and use that object as an input to a local programme (no other choice) which takes several minutes to a couple hours to run. The jobs MUST be run one after the other in the order they are received (no way round this).

TL;DR Server:

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Im trying to loop the reverse_geo() function from tidygeocoder package through a list.

When I apply the function to a single data frame it looks like this:

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I use OSM to display boundaries of the county. It works most of the time just fine, but in some cases the counties are larger and don't fit in the map.

How do I adjust zoom level before start the rendering?

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By having a table with thousands of Villages of course there are duplicates. In order to use them as mapping table it's necessary to mark them accordingly.

Table looks as follows;

id country name notUnique 1234567 Peru Arenal null 1234568 Mexico Arenal null 1234569 Honduras Arenal null 1234570 USA Pasadena null 1234571 Canada Pasadena null 1234572 Philippines Pasadeña null 1234573 Poland Susk Nowy null

now I use my code snippet to fill out the not Unique:

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