Hope everyone is healthy and safe. Has anyone worked with “worldwind-react-globe” or “worldwindjs”? I’m not understanding how to work with renderable layers and my Google-fu isn’t finding me any examples I can successfully translate to CLJS

I'm running this example in clojurescript: https://www.w3schools.com/tags/tryit.asp?filename=tryhtml5_canvas_drawimage And I have the following. (Ignore what segmentation or segmented means):

(def run-segmentation (with-meta identity {:component-did-mount #(dispatch [:run-segmentation])}))
[run-segmentation
      [:div
       [:canvas {:id "img-editing"}]
        [:img {:src "/run-segmentation" :id "segmented"}]]]

#segmented {
    border: 1px solid green;
    height: 277px;
    width: 220px;

}

#img-editing {
    border: 2px solid blue;
    width:240px;
    height:297px;
}

(reg-event-db
 :run-segmentation
 (fn [db _]
   (set! (.-onload img)
         (fn []
           (let [c (js/document.getElementById "img-editing")
                 ctx (.getContext c "2d")
                 img (js/document.getElementById "segmented")]
             (.drawImage ctx img 10 10))))
   db))

running a reagent project in atom and it will only run a CLJ repl even when I switch to a specific cljs namespace it wont evaluate any CLJS or js interop. Anyone got any advice? Wont work in emacs either

ClojureScript doesn't have a format function right? https://cljs.github.io/api/cljs.core/format What's the best alternative?

https://google.github.io/closure-library/api/goog.string.format.html ?

just took that from the source of the removed cljs.core/format

having a hard time understanding how to parse json in practice. the js->clj tutorial makes sense but I have all of the JSON in a different file. is there a way to pass my .json file into the function. sorta like this: (.parse js/JSON <file.json>)

you need to read the file in somehow, either via a network request (in a browser) or via reading form disk (node.js)

even if the json file is in my project directory?

you can potentially read it at compile time using a macro depending on your use case

yes if it is in your project directory, you need to serve the file somehow if you want to read the file at runtime.

if you want to read the file at compile time, that can also be done but is more complicated

i think runtime would be better

is this a web app or a nodejs program?

web app. reagent

I imagine you have some sort of public dir that you’re serving html/css/js files from

you can put that file in that same dir and then fetch the JSON

e.g. if you have the file structure:

src/
resources/
  public/
    index.html
    js/
    css/
    something.json

(-> (js/fetch "/something.json")
    (.then #(.json %))
    (.then js->clj)
    (.then prn))

ah lovely

thanks!