[x3d-public] JSON to STL. Function bounties.

[John Carlson]

The way I remember things is I remember who I heard it from, in many
cases.  That way, i can funnel info to you if it seems relevant.

I do not think what I’m discussing is necessarily an X3D issue, and more of
a generic communication/synchronization issue.

 But yeah, getting into a routed node would be neat.

John

On Tue, Dec 20, 2022 at 5:34 PM Christoph Valentin <
christoph.valentin at gmx.at> wrote:

> Hi John, long no contact :-)
>
> May I respond to your question?
> >>> Christoph Valentin, what’s the  preferred multiuser web software for
> X3D?
>
> Well, I really feel deeply honoured, to be asked questions like that.
>
> Unfortunately, I am not in the position to issue any hint, I am not even
> sure, if I understand the connection to your current subject.
>
> First, I am currently really busy with the duties in connection with my
> job, which has NOTHING to do with Web3D Graphics (however, this being busy
> might move to the background a little bit during holiday season).
>
> Second, I really did nothing more than playing around a little bit with
> the Network Sensor in my SrrTrains v0.01 project. Maybe I have
> disclosed/encountered/discovered a few very interesting topics, true, but I
> have written all my findings to my blogs, GitHub account and sourceforge
> account, nothing hidden.
>
> I have even promised that I will start my "Fiat A" project as a kind of
> indicative "lighthouse project" to indicate, when I will have got positive
> evidence about such Web3D multiuser projects having started at the industry
> (this does NOT mean that such projects have NOT been started at the
> industry, when I do NOT start the "Fiat A" project).
>
> If you think I can help in any further way that does not consume lots of
> staff hours, please tell me.
>
> Have a nice holiday season
> CP/V
>
>
>
>
> Gesendet: Dienstag, 20. Dezember 2022 um 22:36 Uhr
> Von: "John Carlson" <yottzumm at gmail.com>
> An: "Christoph Valentin" <christoph.valentin at gmx.at>, "X3D Graphics
> public mailing list" <x3d-public at web3d.org>
> Betreff: Re: JSON to STL. Function bounties.
>
> Current code is here:
>
> https://github.com/coderextreme/JsonToStl
>
> It’s a pretty clean project, no real build script (make.sh), needs more
> test cases.
>
> If you want to be a contributor, send me your email and specify your
> license of choice.  Code you work on should include your license in each
> source file you modify and the main LICENSE file.  If you want to create a
> python blender scripts to go from X3D to STL, that will be cool too.  I
> don’t want a lot of confusion about which IDE to use.   I use vim.  Use
> what you like, but don’t create a lot of dependencies, instead use some you
> didn’t install like easy to read make.bat file to pair with make.sh.
>
> Remember there’s Git Bash, so you can assume bash will be on the system
> that git uses.
>
> My approach i am considering taking is:  first, choosing a set of flat
> meshes to cover sphere, cone, cylinder, generically. After that, we can
> cover more complicated meshes like extrusions, 2D geometry and NURBS
> geometry
>
> So i think that sphere might be a grid mesh, cylinder would be 3 meshes,
> and cone is 3 meshes.
>
> My plan is to do sphere first, since that will cover my use case.
>
> John
>
>
> On Tue, Dec 20, 2022 at 2:58 PM John Carlson <yottzumm at gmail.com[mailto:
> yottzumm at gmail.com]> wrote:
> Wondering, is an X3dToStl.xslt code development  planned soon?
>
> The other thing i can work on is continuing JSON to Python conversion.
>
> Is there something i can write that i will use on a regular basis?
>
> Christoph Valentin, what’s the  preferred multiuser web software for X3D?
>
> Would syntax highlighting for vim and/or neovim be useful?
>
> John
>
>
> On Tue, Dec 20, 2022 at 6:17 AM John Carlson <yottzumm at gmail.com[mailto:
> yottzumm at gmail.com]> wrote:
>
> Here are the functions that are planned or implemented in JsonToStl.
> Please express which ones you'd like to see implemented next.
>
> Thanks!
>
> Also, please discuss what type of LICENSE would be required. If at all
> possible, I'd like to make some money off this, perhaps by setting up a
> conversion website or patreon.
>
> Yes, I'm aware of the STL output in Blender! I'm working on this to
> enhance X3DJSONLD.  Is conversion to STL still desired?
>
> Thanks,
>
> John
>
> function convertJsonToStl(json) {
> function initializeLDNode(json, obj) {
> function findLDNodeInList(use, LDNodeList) {
> function toNormals(json, LDNodeList, ParentNode) {
>                 IndexedFaceSet : function(obj, LDNode) {
>                 Group : function(obj, LDNode) {
>                 Shape : function(obj, LDNode) {
>                 Box : function(obj, LDNode) {
>                 IndexedTriangleSet : function(obj, LDNode) {
>                 IndexedTriangleStripSet : function(obj, LDNode) {
>                 IndexedTriangleFanSet : function(obj, LDNode) {
>                 IndexedLineSet : function(obj, LDNode) {
>                 Normal : function(obj, LDNode) {
>                 Coordinate : function(obj, LDNode) {
>                 Transform : function(obj, LDNode) {
>                 "@scale" : function(obj, LDNode) {
>                 "@rotation" : function(obj, LDNode) {
>                 "@translation" : function(obj, LDNode) {
>                 "@normalPerVertex" : function(obj, LDNode) {
>                 "@size" : function(obj, LDNode) {
>                 "@vector" : function(obj, LDNode) {
>                 "@point" : function(obj, LDNode) {
>                 "@normalIndex" : function(obj, LDNode) {
>                 "@coordIndex" : function(obj, LDNode) {
>                 "@index" : function(obj, LDNode) {
> function vector_product(u, v) {
> function normalize(v) {
> function triangle_normal(a, b, c) {
> function printNormal(prefix, x, y, z, output, transform) {
> function printSFVec3f(prefix, x, y, z, output, transform) {
> function IndexedTriangle(LDNode, output, transform) {
> function transformLDNodesToTriangles(LDNode, output, parentTransform) {
>                 IndexedFaceSet: function(LDNode, output, transform) {
>                 Box: function(LDNode, output, transform) {
>                 SixSided: function(LDNode, output, transform, x, y, z) {
>                 Square: function(LDNode, output, transform, square) {
>                 Triangle: function(LDNode, output, transform, coords) {
>
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