Openlayers and Angular

I recently set up a simple Openlayers page, which proved to be an interesting experience. As mentioned in that post, one problem I had was working with so many unfamiliar technologies. It’s a long time since my first tinkerings with Javascript, and I’ve paid little attention to it. Since then, front-end development has exploded into a variety of frameworks and libraries that interact in strange and spooky ways. Node! Typescript! Less! Angular! Jquery!

In the long term, I want to get back into full-stack development; but in the short term, I just want to put a mapping site live. I’ve settled on JHipster as a platform, since it makes managing the database and middle-tier incredible easy, as well as setting up a lot of the Angular infrastructure. The problem is that almost all the Openlayers examples that I can find are written with JQuery.

I found a few clues on what to do, such as a Stackoverflow post on How do I dynamically add popups to markers using OpenLayers 5 in Angular 4?, but my meagre experience of Angular meant I couldn’t get the Popper library this used to work. But the answer gave me enough of a clue to get the syntax and code set up for a very basic implementation of Openlayers popups within angular. The work is in done within the controller, and builds and executes correctly.

It’s far from perfect – because the component is embedded within another page, the pop-up doesn’t appear with the feature, rather it is placed a short distance above. There is also a problem with the click detection being flakey – the window has to be resized for this to work reliably.

But the good thing is, I now have a proof of concept for Openlayers working within JHipster. As scrappy as this is, I do seem to have them working together now. It’s going to be ugly, but I have enough to build a basic application with.

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