Canvas Nasal/JavaScript Subset: Difference between revisions

Canvas Nasal/JavaScript Subset (view source)

1,369 bytes added , 22 October 2016

20,741

edits

@@ Line 7: / Line 7: @@
 {{Nasal Navigation}}
+== Motivation ==
+The Nasal/JavaScript subset approach discussed below is about refactoring existing Canvas MFDs (or the underlying framework) so that the corresponding Nasal code becomes a valid subset of JavaScript (and vice versa) - that's just an idea that we ended up discussing behind the scenes when Torsten began his Phi/MFD (browser-based) work, because he began duplicating functionality that already existed elsewhere. The main reason being that a Canvas is just a property tree - and most elements are just textures or SVG images. In other words, it would not be that far-fetched to come up with a really tiny wrapper/subset of both, Nasal and JavaScript, that can be processed by both - part of this could be machine generated actually, i.e. dynamically compiling a simple subset of a DSL into whatever target platform is desired.
+The main thing this would require is what Torsten implemented already: APIs for setting/getting properties and running fgcommands, in conjunction with serving  fgdata resources like textures and SVG files: [[Canvas Nasal/JavaScript Subset]]<ref>{{cite web
+  |url    =  https://forum.flightgear.org/viewtopic.php?p=296457#p296457
+  |title  =  <nowiki> Re: Canvas remote drawing </nowiki>
+  |author =  <nowiki> Hooray </nowiki>
+  |date   =  Oct 10th, 2016
+  |added  =  Oct 10th, 2016
+  |script_version = 0.40
+  }}</ref>
 == Objective ==