Jan 9, 2019

z3dev

Bar Smith
I have been going through the V2 code to try to get myself up to speed on how it works and NPM/JS in general. I'm still grappling with => syntax, but for the most part things are making sense.

I've been trying to answer my own questions but two things have me stumped.

How does the event system work? Specifically I have been trying to trace how checking and unchecking the "grid" checkbox makes the grid show up and disappear. Where is the event listener for the mouse click? I can see that viewerControls.js and viewer.js are both involved, but there is more to it that I am missing.
If I wanted to make a sphere show up in the example (demo.html) how would I do that. We have the JSCAD instance jscadInst1 and creating a second one creates a second JSCAD instance (awesome!), but I am unclear on how to interact with that instance. Is there a place I can look to better understand what I can do with that object? Index.js seems to assemble all of the parts, but if I wanted to make that instance compile a shape how would I do that?

Thanks for bearing with the questions that probably have obvious answers I'm not seeing.
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Bar Smith
Oh no that's great! 

The structure of declaring what you want seems like an excellent way to organize things. It gives you a lot of molecularity which is fantastic and one of the big reasons I want to jump into alpha V2.

I looks to me like  sources.dom.select('.example').events('click') is the event listener right? Where is the click event generated? How and when do actions run?

Bar Smith
Ok, thank you! I will read up on Most.js and Rxjs. I am loving js so far, but there are still a lot of things that are getting past me. It took me a couple hours to figure out that arrow function are actually functions

I have been working on the flow drawing side and GitHub integration parts of my project which has been a good way to get a better handle on how js works.