[x3d-public] Report for now, JinLOA4Canonical.x3d scaling and recentering.

[John Carlson]

Joe, I believe this is my working JavaScript.  The metadata code is in
https://github.com/coderextreme/X3DJSONLD … src/main/node/X3DJSONLD.js
which is run with the program src/main/shell/jin.sh (run in the shell
folder).  I use Git for Windows for my bash shell and Windows Terminal.
Obviously we may have different installations, and you may have to edit
filenames in src/main/node/jin.js as well.  everything’s hardcoded files
now, and I just handle geometry inside src/main/data/JoeLOA4Canonical.x3d
for now.  Output file is src/main/data/JinLOA4Canonical101.x3d

Let me know if anything is missing, I’m noticing some errors in the
process, which I’ve been working on, and i have many more mods to be
checked in.

I will be on travel today, but carry my phone.

On Wed, Jun 21, 2023 at 9:48 PM John Carlson <yottzumm at gmail.com> wrote:

> // Working prototype code to find texCoordIndex values > length of
> TextureCoordinate.point.
>
> // You'll want to translate into your own language/encoding.  Only
> works for IFS right now
>
> let fs = require("fs");
> let file = "JinLOA4Canonical.json";
> let data = fs.readFileSync(file).toString();
> let json = JSON.parse(data);
> /*console.log(json.X3D);
> console.log(json.X3D.Scene);
> console.log(json.X3D.Scene["-children"]);
> console.log(json.X3D.Scene["-children"][3]["HAnimHumanoid"]);
> console.log(json.X3D.Scene["-children"][3]["HAnimHumanoid"]["@scale"]);
> */
> /*
> let divisor = [];
> divisor[0] = scale[0];
> divisor[1] = scale[1];
> divisor[2] = scale[2];
> */
> let HUMANCHILD = 3;
>
> //json.X3D.Scene["-children"][HUMANCHILD] =
> json.X3D.Scene["-children"][HUMANCHILD+1];
>
> let scale =
> json.X3D.Scene["-children"][HUMANCHILD]["HAnimHumanoid"]["@scale"];
> let center =
> json.X3D.Scene["-children"][HUMANCHILD]["HAnimHumanoid"]["-skeleton"][0]["HAnimJoint"]["@center"];
>
> //delete json.X3D.Scene["-children"][HUMANCHILD+1];
>
> let x = center[0];
> let y = center[1];
> let z = center[2];
>
>
> function centering(json) {
> for (let j in json) {
> if (j === "@center") {
> if (json["@name"] === "l_talocrural") {
> l_x = json["@center"][0];
> l_z = json["@center"][2];
> y = json["@center"][1];
> } else if (json["@name"] === "r_talocrural") {
> r_x = json["@center"][0];
> y = json["@center"][1];
> r_z = json["@center"][2];
> }
> } else if (typeof json[j] === 'object') {
> centering(json[j]);
> }
> }
> }
>
> function transform(json, indent, parent, max, parentTranslation) {
> let translation = [0,0,0];
> for (let j in json) {
> if (j === "@translation") {
> json[j][0] = json[j][0] - x;
> json[j][1] = json[j][1] - y;
> json[j][2] = json[j][2] - z;
> json[j][0] = json[j][0] / scale[0];
> json[j][1] = json[j][1] / scale[1];
> json[j][2] = json[j][2] / scale[2];
> translation[0] = json[j][0] + parentTranslation[0];
> translation[1] = json[j][1] + parentTranslation[1];
> translation[2] = json[j][2] + parentTranslation[2];
> json[j][0] = parseFloat(json[j][0].toFixed(4));
> json[j][1] = parseFloat(json[j][1].toFixed(4));
> json[j][2] = parseFloat(json[j][2].toFixed(4));
> // delete json[j];
> } else if (j === "@center") {
> json[j][0] = json[j][0] - x;
> json[j][1] = json[j][1] - y;
> json[j][2] = json[j][2] - z;
> json[j][0] = json[j][0] / scale[0];
> json[j][1] = json[j][1] / scale[1];
> json[j][2] = json[j][2] / scale[2];
> json[j][0] = json[j][0] + parentTranslation[0];
> json[j][1] = json[j][1] + parentTranslation[1];
> json[j][2] = json[j][2] + parentTranslation[2];
> json[j][0] = parseFloat(json[j][0].toFixed(4));
> json[j][1] = parseFloat(json[j][1].toFixed(4));
> json[j][2] = parseFloat(json[j][2].toFixed(4));
> // console.log(json["@name"]);
> // console.log(json["@center"][0].toFixed(4),
> json["@center"][1].toFixed(4), json["@center"][2].toFixed(4));
> } else if (j === "@centerOfRotation") {
> json[j][0] = json[j][0] - x;
> json[j][1] = json[j][1] - y;
> json[j][2] = json[j][2] - z;
> json[j][0] = json[j][0] / scale[0];
> json[j][1] = json[j][1] / scale[1];
> json[j][2] = json[j][2] / scale[2];
> json[j][0] = json[j][0] + parentTranslation[0];
> json[j][1] = json[j][1] + parentTranslation[1];
> json[j][2] = json[j][2] + parentTranslation[2];
> json[j][0] = parseFloat(json[j][0].toFixed(4));
> json[j][1] = parseFloat(json[j][1].toFixed(4));
> json[j][2] = parseFloat(json[j][2].toFixed(4));
> } else if (j === "@position") {
> json[j][0] = json[j][0] - x;
> json[j][1] = json[j][1] - y;
> json[j][2] = json[j][2] - z;
> json[j][0] = json[j][0] / scale[0];
> json[j][1] = json[j][1] / scale[1];
> json[j][2] = json[j][2] / scale[2];
> json[j][0] = json[j][0] + parentTranslation[0];
> json[j][1] = json[j][1] + parentTranslation[1];
> json[j][2] = json[j][2] + parentTranslation[2];
> json[j][0] = parseFloat(json[j][0].toFixed(4));
> json[j][1] = parseFloat(json[j][1].toFixed(4));
> json[j][2] = parseFloat(json[j][2].toFixed(4));
> } else if (j === "IndexedFaceSet") {
> // console.log(json[j]);
> if (json[j]["@texCoordIndex"]) {
> var tci = json[j]["@texCoordIndex"];
> // console.log(tci);
> max = Math.max(...tci);
> // console.log(max);
>
> }
> transform(json[j], indent+1, json, max, translation);
> } else if (j === "@point") {
> let i = 0;
> for (i = 0; i < json[j].length; i+=3) {
> if (!parent["TextureCoordinate"]) {
> json[j][i+0] = json[j][i+0] - x;
> json[j][i+1] = json[j][i+1] - y;
> json[j][i+2] = json[j][i+2] - z;
> json[j][i+0] = json[j][i+0] / scale[0];
> json[j][i+1] = json[j][i+1] / scale[1];
> json[j][i+2] = json[j][i+2] / scale[2];
> json[j][i+0] = json[j][i+0] + parentTranslation[0];
> json[j][i+1] = json[j][i+1] + parentTranslation[1];
> json[j][i+2] = json[j][i+2] + parentTranslation[2];
> json[j][i+0] = parseFloat(json[j][i+0].toFixed(4));
> json[j][i+1] = parseFloat(json[j][i+1].toFixed(4));
> json[j][i+2] = parseFloat(json[j][i+2].toFixed(4));
> }
> }
> if (parent["TextureCoordinate"]) {
> if (json[j].length/2 > 0 && json[j].length/2 <= max) {
> console.log("point length", json[j].length, ", point length/2",
> json[j].length/2, ", Max index", max);
> console.log(parent);
> }
> }
> } else if (typeof json[j] === 'object') {
> transform(json[j], indent+1, json, max, translation);
> }
> }
> }
>
> centering(json);
>
> x = (l_x + r_x) / 2;
> z = (l_z + r_z) / 2;
>
> console.log(x, y, z);
>
> transform(json, 0, null, Math.INFINITY, [0,0,0]);
>
> console.log(scale);
> scale[0] = scale[0] / scale [0];
> scale[1] = scale[1] / scale [1];
> scale[2] = scale[2] / scale [2];
> console.log(scale);
>
> let out = JSON.stringify(json, null, 2);
> let outfile = "JinLOA4Canonical101.json";
> fs.writeFile(outfile, out, function(err) {
> if(err) {
> return console.error(err);
> }
> });
>
> json = JSON.parse(data);
> out = JSON.stringify(json, null, 2);
> outfile = "JinLOA4Canonical100.json";
> fs.writeFile(outfile, out, function(err) {
> if(err) {
> return console.error(err);
> }
> });
>
>
> On Wed, Jun 21, 2023 at 9:10 PM John Carlson <yottzumm at gmail.com> wrote:
>
>> Here's the current JinLOA4Canonical101.x3d attached. Michalis, you will
>> find a metadata problem if you launch it.  I was able to view in freewrl 4
>> and 5. The viewpoint isn't right, suggestions welcome.  Joe, I haven't been
>> able to delete the translations without major problems, I will call you
>> tomorrow.
>>
>> Files are here for now:
>>
>> https://coderextreme.net/jin.zip
>>
>
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