MapHelper | : earth_asia : | Map library

I subclassed a QTreeWidget in order to reimplement the protected functionalities of drag and drop in order to drag drop parents and children of a QTreeWidget.

It almost works and the problem is that as soon as I try to drag and drop either children or parents, they are erased as soon as I drop them. Source code can be found here in case you need to see what is going on.

Also if I try to drag-drop the parent, it unfortunately does not move and nothing happens.

See below the strange effect for the children:

I drag the child "Original" to drop it right under "Sample" and this procedure seems to work correctly:

After dropping "Original" as you can see the index seems to be there but it seems to be partially erased:

I am not sure exactly of what is going on and why the children seems to not completely be dropped correctly and why the parents are literally not moving.

Below the code of the minimal verifiable example:

mainwindow.h

I want to call a simple TypeScript function from within an HTML variable. The Button with the HTML is attempting to call '_Myfunction' which creates a simple Alert();.

Clicking on the button produces the following error:

typeError: Cannot read property '_Myfunction' of undefined

How can I resolve this error? And the code is below:

I'm looking at migrating from OpenLayers to Azure Maps, and need to go through a list of things that I can currently do and need to be able to do on Azure. One of those things is styling, where

I'm styling a layer based on a few different things, one of which is if the name of a feature exists in an array. There's a few other requirements, but they all stem from the same base need.

I've seen I can define a custom property for each polygon when styling to use, but I can't see how to set this based on a custom function (ie, whether a property is in an array).

Here's what I'm doing in OpenLayers (v3):

I am using specification classes to encapsulate various queries that are used throughout my domain.

The specifications inherit from a Specification base class:

I'm having trouble escaping json string. Basically I want to end up with

So in my template I have something like

`#map(data-markers: "#{waypoints_to_json(@waypoints)}")

And the view:

defmodule PedalApp.Web.MapHelper do def waypoints_to_json(waypoints) do Poison.encode!(waypoints) |> Phoenix.HTML.raw end end

Problem is that it doesn't escape quotes, so it wrecks html.

What's the proper way to cram json into a data attribute?

I want to make a helper class that handles the Geocoding and ReverseGeoCoding in my app.

My challenge is that the following line of code does not actually seem to await the result from the call.

I'm doing a pretty standard loading of a map, like: