XProfan

const gPly = new THREE.BufferGeometry( );

const parametersPly = {

    surface:'polygon', // or other planes ---> rectangle (divW: divH:), circle(div4)
    d: 0.25,// rough side length of the triangles
    polygonN: 12,
    divN: 6,
    holes: [
    // circular hole, [ div4Adp, x, y ],
    //[ 'circle', 10,  1.2, 0.5 ],
    // polygonal hole, [ polygonNAdp,divNAdp, x, y ],
    //[ 'polygon', 6, 4, 1.2, 0.5 ],
    // points hole,: array of points x, y, ...  (last point is connected to first)
    [ 1.1,0.1,  0.1,0.9,  -0.5,-1.45 ]
    ]

}

innerGeometry( gPly, parametersPly );
// .......................................
const gSph = new THREE.BufferGeometry( );

const parametersSph = {

    // excenter unit: '%' of the radius, 'd' factor to d, 'v' value
    surface:'sphere',
    d: 0.15,// rough side length of the triangles
    div4: 29,// division of the quarter of the great circle (orthodrome)
    holes: [
    // circular hole, [ div4Adp, theta, phi ], div4Adp <= div4
    ['circle', 10,  1.85, -0.75 ],
    ['circle', 12,  2.77,  1.81 ],
    ['circle', 7, -0.66,     0 ],
    // excentric (exc) hole to conect a cylinder, [ div4Adp, theta, phi, exc, unit, <optional: side> ]
    ['cylinder', 4,  0.2, 3.1,   2.45, 'v' ],
    ['cylinder', 3, -0.4, 2.3, 101.5,  '%' ],
    ['cylinder', 9,    0,   0,  12.71, 'd', '+-' ],
    // points hole,: array of points theta, phi, ...  (last point is connected to first)
    [ 1,1,  1.4,1.1,  1.4,1.3, 1,1.3 ]
    ]

}

innerGeometry( gSph, parametersSph );
// .......................................
const gCyl = new THREE.BufferGeometry( );

const parametersCyl = {

    // excenter unit: '%' of the radius, 'd' factor to d, 'v' value
    surface:'cylinder',
    d: 0.14,// rough side length of the triangles
    div4: 17,// division of the quarter circle
    geoBtm:'plane', // 'plane', 'sphere', 'cylinder' solid to be adapted
    bottom:  -4,
    div4Btm: 34,// division bottom adaptation, (to quarter, >= div4)
    phiBtm: 0.77,// rotation of adaptive-deformed circle (Bottom)
    excBtm: 1.2,
    excUnitBtm:'v',
    tiltBtm: 0.5,// tilt of bottom adaption ( -PI/2 < tilt < PI/2 )
    geoTop:'cylinder', //  'plane', 'sphere', 'cylinder' solid to be adapted
    top: 2,
    div4Top: 44,// division top adaptation, (to quarter, >= div4)
    phiTop: 0.77,// rotation of adaptive-deformed circle (Top)
    excTop: 148,
    excUnitTop:'%',
    tiltTop: 0.5,// tilt of top adaption ( -PI/2 < tilt < PI/2 )
    holes: [
    // excentric (exc) hole to conect a sphere:  [ 'sphere', div4AdpSphere, y, phi, exc, unit ]
    ['sphere', 16, -1.11, 0,  2.686, 'v' ],
    // excentric (exc) hole to conect a cylinder: [ 'cylinder', div4AdpCylinder, y, phi, exc, unit, tilt, <optional: side> ]
    ['cylinder', 8,  -2.2, 1.57, 52.898, '%', -0.22, '+-' ], // side is ignored for connected hole
    // points hole,: array of points y, phi, ...  (last point is connected to first)
    [ 0.15,0.45, 0.5,0.9, 0.8,0.6, 0.75,-0.2, 0.1,-0.15  ]
    ]

}

innerGeometry( gCyl, parametersCyl );

dpsi = Math.PI * 2 /  g.detail  / 16;

while ( sqlen0 < 0.81 * dd ) {

    psi += sign * dpsi;
    xyzCalculation( );
    dx = x - x0;
    dy = y - y0;
    dz = z - z0;
    sqlen0 = squareLength( dx, dy, dz );

}

dpsi = Math.PI * 2 / Math.max( g.detail, g.detailAdp ) / 16;

/*
import * as THREE from "https://threejs.org/build/three.module.js";
import { OrbitControls } from "https://threejs.org/examples/jsm/controls/OrbitControls.js";
import { LineMaterial } from 'https://threejs.org/examples/jsm/lines/LineMaterial.js';
import { Wireframe } from 'https://threejs.org/examples/jsm/lines/Wireframe.js';
import { LineSegmentsGeometry } from 'https://threejs.org/examples/jsm/lines/LineSegmentsGeometry.js';
*/
//import modified modules, see https://hofk.de/main/discourse.threejs/Module%20usage.pdf
import * as THREE from "../jsm/three.module.112.js";
import { OrbitControls } from "../jsm/OrbitControls.js";
import { LineMaterial } from "../jsm/LineMaterial.js";
import { Wireframe } from "../jsm/Wireframe.js";
import { LineSegmentsGeometry } from "../jsm/LineSegmentsGeometry.js";