First draft of refactored optional / visible nodes and links

ways of picking out parts of a structure

cellindex.js

@@ -1 +1,101 @@
-export const INDEX = {"1": [ 27,38,48,49,61,68,74,87,95,98,105,120, 126,131,140,149,156,165,174,179,185,200,207,210,218,223,226,231,234,239,241,248,252,253,258,263,265,272,274,279,284,285,289,296,300,301,306,311,313,320,324,325,331,334,339,342,347,350,356,357,362,367,369,376,378,383,388,389,393,400,403,406,413,414,419,420,425,427,438,440,444,448,449,453,458,460,469,471,473,474,487,488,490,494,499,503,511,512,513,514,525,527,530,532,539,543,546,550,555,558,563,566,572,573,580,581,585,592,593,600],"2":[1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,28,30,31,34,35,37,40,41,44,46,47,50,51,53,56,57,60,62,63,66,67,69,72,73,76,78,79,82,83,85,88,90,91,93,96,97,100,102,103,106,107,109,112,113,116,118,119,122,123,125,128,129,132,134,135,138,139,141,144,145,148,150,151,154,155,157,160,161,164,166,167,170,171,173,176,177,180,182,183,186,187,189,192,193,196,198,199,202,203,205,208,209,212,214,215],"3":[26,39,45,52,64,65,75,86,94,99,108,117,127,130,137,152,153,168,175,178,188,197,206,211,219,222,227,230,235,238,244,245,251,254,257,264,268,269,273,280,283,286,292,293,299,302,305,312,316,317,321,328,330,335,338,343,348,349,355,358,363,366,370,375,377,384,385,392,394,399,404,405,415,416,417,418,426,428,437,439,441,445,452,456,457,459,470,472,475,476,485,486,491,495,498,502,509,510,515,516,526,528,529,531,538,542,547,551,554,559,562,567,569,576,577,584,588,589,596,597],"4":[32,33,43,54,58,71,77,84,92,101,110,115,121,136,143,146,159,162,169,184,190,195,204,213,220,221,228,229,236,237,242,247,249,256,260,261,266,271,276,277,281,288,290,295,297,304,308,309,315,318,322,327,329,336,340,341,346,351,354,359,361,368,371,374,379,382,387,390,396,397,401,408,409,410,423,424,430,432,433,435,443,447,450,454,461,463,466,468,477,478,483,484,489,493,500,504,507,508,517,518,522,524,533,535,540,544,545,549,553,560,561,568,570,575,578,583,587,590,595,598],"5":[29,36,42,55,59,70,80,81,89,104,111,114,124,133,142,147,158,163,172,181,191,194,201,216,217,224,225,232,233,240,243,246,250,255,259,262,267,270,275,278,282,287,291,294,298,303,307,310,314,319,323,326,332,333,337,344,345,352,353,360,364,365,372,373,380,381,386,391,395,398,402,407,411,412,421,422,429,431,434,436,442,446,451,455,462,464,465,467,479,480,481,482,492,496,497,501,505,506,519,520,521,523,534,536,537,541,548,552,556,557,564,565,571,574,579,582,586,591,594,599]};
+export const INDEX = {
+	"1": [
+		27,38,48,49,61,68,74,87,95,98,105,120, 126,131,140,149,156,165,174,
+		179,185,200,207,210,218,223,226,231,234,239,241,248,252,253,258,263,
+		265,272,274,279,284,285,289,296,300,301,306,311,313,320,324,325,331,
+		334,339,342,347,350,356,357,362,367,369,376,378,383,388,389,393,400,
+		403,406,413,414,419,420,425,427,438,440,444,448,449,453,458,460,469,
+		471,473,474,487,488,490,494,499,503,511,512,513,514,525,527,530,532,
+		539,543,546,550,555,558,563,566,572,573,580,581,585,592,593,600
+	],
+	"2":[
+		1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,28,
+		30,31,34,35,37,40,41,44,46,47,50,51,53,56,57,60,62,63,66,67,69,72,73,
+		76,78,79,82,83,85,88,90,91,93,96,97,100,102,103,106,107,109,112,113,
+		116,118,119,122,123,125,128,129,132,134,135,138,139,141,144,145,148,
+		150,151,154,155,157,160,161,164,166,167,170,171,173,176,177,180,182,
+		183,186,187,189,192,193,196,198,199,202,203,205,208,209,212,214,215
+		],
+	"3":[
+		26,39,45,52,64,65,75,86,94,99,108,117,127,130,137,152,153,168,175,
+		178,188,197,206,211,219,222,227,230,235,238,244,245,251,254,257,264,
+		268,269,273,280,283,286,292,293,299,302,305,312,316,317,321,328,330,
+		335,338,343,348,349,355,358,363,366,370,375,377,384,385,392,394,399,
+		404,405,415,416,417,418,426,428,437,439,441,445,452,456,457,459,470,
+		472,475,476,485,486,491,495,498,502,509,510,515,516,526,528,529,531,
+		538,542,547,551,554,559,562,567,569,576,577,584,588,589,596,597
+		],
+	"4":[
+		32,33,43,54,58,71,77,84,92,101,110,115,121,136,143,146,159,162,169,
+		184,190,195,204,213,220,221,228,229,236,237,242,247,249,256,260,261,
+		266,271,276,277,281,288,290,295,297,304,308,309,315,318,322,327,329,
+		336,340,341,346,351,354,359,361,368,371,374,379,382,387,390,396,397,
+		401,408,409,410,423,424,430,432,433,435,443,447,450,454,461,463,466,
+		468,477,478,483,484,489,493,500,504,507,508,517,518,522,524,533,535,
+		540,544,545,549,553,560,561,568,570,575,578,583,587,590,595,598
+		],
+	"5":[
+		29,36,42,55,59,70,80,81,89,104,111,114,124,133,142,147,158,163,172,
+		181,191,194,201,216,217,224,225,232,233,240,243,246,250,255,259,262,
+		267,270,275,278,282,287,291,294,298,303,307,310,314,319,323,326,332,
+		333,337,344,345,352,353,360,364,365,372,373,380,381,386,391,395,398,
+		402,407,411,412,421,422,429,431,434,436,442,446,451,455,462,464,465,
+		467,479,480,481,482,492,496,497,501,505,506,519,520,521,523,534,536,
+		537,541,548,552,556,557,564,565,571,574,579,582,586,591,594,599
+		]
+};
+
+export const LAYERS = {
+	"0": [
+		1,317,221,217,313,341,465,417,469,421,37,165,161,269,33,513,113,
+		117,517,365
+		],
+	"1": [
+		337,457,409,25,153,265,157,29,413,461,105,109,505,361,509,245,241,
+		49,177,97,433,89,41,425,169,225,321,93,101,53,437,181,45,173,429,
+		325,229,251,255,485,351,453,477,445,347,7,333,249,253,271,163,167,
+		267,155,219,223,159,481,449,349,473,345,441,329,5,529,561,81,577,
+		129,65,545,497,145,593,533,565,389,373,277,279,375,19,581,133,85,
+		69,501,549,597,149,15,367,399,39,519,583,135,487,397,579,515,35,
+		483,131,303,301,209,293,213
+		],
+	"2":[
+		521,553,385,557,525,273,275,369,17,371,569,121,73,57,489,537,585,
+		137,13,363,393,27,507,571,123,475,573,125,395,575,511,31,479,127,
+		77,61,541,493,141,589,178,226,170,174,242,230,182,246,9,322,357,
+		498,434,50,530,146,353,257,185,261,193,233,11,355,359,263,259,189,
+		237,197,326,54,438,502,150,534,335,447,455,95,103,415,319,423,239,
+		71,199,551,383,287,419,315,411,331,443,451,99,91,3,343,471,467,115,
+		119,235,67,547,195,285,381,405,309,594,390,562,294,210,82,23,406,
+		595,310,211,83,566,86,214,598,407,311,24,408,312,599,87,215,567,
+		563,295,391
+		],
+	"3":[
+		297,201,299,205,289,42,426,490,138,522,494,430,46,526,142,63,543,
+		191,283,379,339,459,463,111,107,59,187,539,377,281,546,382,286,194,
+		66,114,118,466,342,470,384,288,550,70,198,503,439,55,535,151,51,435,
+		499,147,531,212,296,302,304,216
+		],
+	"4":[
+		386,554,290,74,202,586,401,305,558,78,590,206,307,403,21,402,306,
+		587,75,203,555,79,559,207,291,387,591,308,404,22,462,338,458,110,
+		106,2,410,314,418,98,90,450,58,186,442,330,234,282,378,538,62,190,
+		238,94,102,446,334,454,284,380,542,422,414,318,495,431,327,260,264,
+		356,12,360,47,527,143,200,192,240,43,427,323,247,243,171,227,179,491,
+		523,139,183,175,231,258,262,358,354,10,196,236,188,130,578,398,596,
+		548,132,580,84,514,34,482,148,68,500,582,518,400,366,16,134,486,38,
+		600,552,88,136,584,152,72,504,20,376,392,536,568,374,278,280,532,564
+		],
+	"5":[
+		570,394,298,300,506,14,362,396,574,510,122,474,26,204,208,292,126,
+		30,478,588,540,76,124,572,140,60,492,18,370,388,524,556,372,276,274,
+		592,144,80,528,560,544,64,496,222,218,154,266,158,162,270,166,6,346,
+		350,254,250,332,452,484,444,476,8,348,336,448,480,128,352,488,456,
+		252,256,328,232,432,176,48,440,56,184,104,96,324,228,172,428,44,
+		180,52,436,248,244,92,100,516,368,36,272,164,116,520,120,468,420,
+		40,168,472,424,344
+		],
+	"6":[364,268,508,28,156,576,512,108,112,32,160,460,412,464,340,416,
+		220,224,316,320,4
+		]
+}

fourDShape.js

@@ -61,7 +61,7 @@ class FourDShape extends THREE.Group {
 		return edge;
 	}
 
-	updateLink(link) {
+	updateLink(link, links_show) {
 		const n1 = this.nodes3[link.source].v3;
 		const n2 = this.nodes3[link.target].v3;
 		const length = n1.distanceTo(n2);
@@ -71,6 +71,7 @@ class FourDShape extends THREE.Group {
 		link.object.position.copy(centre);
 		link.object.lookAt(n2);
 		link.object.children[0].rotation.x = Math.PI / 2.0;
+		link.object.visible = (!links_show || link.label in links_show); 
 	}
 
 
@@ -115,6 +116,7 @@ class FourDShape extends THREE.Group {
 			const material = this.getMaterial(n, this.node_ms);
 			this.nodes3[n.id] = {
 				v3: v3,
+				label: n.label,
 				object: this.makeNode(material, v3)
 			};
 		}
@@ -129,17 +131,17 @@ class FourDShape extends THREE.Group {
 	}
 
 
-	render3(rotations) {
+	render3(rotations, nodes_show, links_show) {
 		this.scalev3 = new THREE.Vector3(this.node_scale, this.node_scale, this.node_scale);
 		for( const n of this.nodes4 ) {
 			const v3 = this.fourDtoV3(n.x, n.y, n.z, n.w, rotations);
 			this.nodes3[n.id].v3 = v3;
 			this.nodes3[n.id].object.position.copy(v3);
 			this.nodes3[n.id].object.scale.copy(this.scalev3);
+			this.nodes3[n.id].object.visible = ( !nodes_show || n.label in nodes_show );
 		}
-
 		for( const l of this.links ) {
-			this.updateLink(l);
+			this.updateLink(l, links_show);
 		}
 
 		for( const f of this.faces ) {
@@ -147,7 +149,6 @@ class FourDShape extends THREE.Group {
 		}
 	}
 
-
 }
 
 export { FourDShape };

gui.js

@@ -1,13 +1,13 @@
 import { GUI } from 'lil-gui';
 
 
-
 const DEFAULTS = {
 	thickness: 0.25,
 	nodesize: 1.25,
 	linkopacity: 0.5,
 	link2opacity: 0.5,
-	shape: '120-cell',
+	shape: '120-cell inscribed',
+	visibility: 5,
 	inscribed: false,
 	inscribe_all: false,
 	color: 0x3293a9,
@@ -22,7 +22,7 @@ const DEFAULTS = {
 
 class FourDGUI {
 
-	constructor(changeShape, setColor, setBackground, setLinkOpacity) {
+	constructor(shapes, changeShape, setColor, setBackground, setLinkOpacity, setVisibility) {
 		this.gui = new GUI();
 		this.parseLinkParams();
 		const guiObj = this;
@@ -34,6 +34,7 @@ class FourDGUI {
 			linkopacity: this.link['linkopacity'],
 			link2opacity: this.link['linkopacity'],
 			nodesize: this.link['nodesize'],
+			depth: this.link['depth'],
 			color: this.link['color'],
 			background: this.link['background'],
 			hyperplane: this.link['hyperplane'],
@@ -43,13 +44,19 @@ class FourDGUI {
 			dpsi: this.link['dpsi'],
 			"copy link": function () { guiObj.copyUrl() }
 		};
-
-		this.gui.add(this.params, 'shape',
-			[ 'dodecahedron', '5-cell', '16-cell', 'tesseract',
-				'24-cell', '600-cell', '120-cell' ]
-		).onChange(changeShape)
-		this.gui.add(this.params, 'inscribed').onChange(changeShape);
-		this.gui.add(this.params, 'inscribe_all').onChange(changeShape);
+		const SHAPE_NAMES = shapes.map((s) => s.name);
+		let options_ctrl;
+		this.gui.add(this.params, 'shape', SHAPE_NAMES).onChange((shape) => {
+			const options = this.getShapeOptions(shapes, shape);
+			options_ctrl = options_ctrl.options(options).onChange((option) => {
+				setVisibility(option)
+			});
+			changeShape(shape)
+		});
+		const options = this.getShapeOptions(shapes, this.params['shape']);
+		options_ctrl = this.gui.add(this.params, 'options', options).onChange((option) => {
+			setVisibility(option)
+		});
 		this.gui.add(this.params, 'hyperplane', 1.5, 2.25);
 		this.gui.add(this.params, 'thickness', 0.1, 2);
 		this.gui.add(this.params, 'linkopacity', 0, 1).onChange(
@@ -65,7 +72,16 @@ class FourDGUI {
 		this.gui.add(this.params, 'damping');
 		this.gui.add(this.params, 'copy link');
 
-	}	
+	}
+
+	getShapeOptions(shapes, shape) {
+		const spec = shapes.filter((s) => s.name === shape);
+		if( spec && spec[0].options ) {
+			return spec[0].options.map((o) => o.name);
+		} else {
+			return [];
+		}
+	}
 
 
 	numParam(param, parser) {
@@ -95,7 +111,7 @@ class FourDGUI {
 		const guiObj = this;
 
 		this.urlParams = this.linkUrl.searchParams;
-		for( const param of [ "shape", "rotation" ]) {
+		for( const param of [ "shape", "rotation", "visiblity" ]) {
 			const value = this.urlParams.get(param);
 			if( value ) {
 				this.link[param] = value;

label120cell.js

@@ -1,7 +1,8 @@
 
-//testbed for playing with stuff in node repl
+// code for generating the 120-cell labels
+// has some overlap with permute - FIXME
 
-const THREE =require('three');
+const THREE = require('three');
 
 function pandita(a) {
 	const n = a.length;
@@ -133,7 +134,7 @@ function dist2(n1, n2) {
 	return (n1.x - n2.x) ** 2 + (n1.y - n2.y) ** 2 + (n1.z - n2.z) ** 2 + (n1.w - n2.w) ** 2;
 }
 
-function auto_detect_edges(nodes, neighbours, debug=false) {
+export function auto_detect_edges(nodes, neighbours, debug=false) {
 	const seen = {};
 	const nnodes = nodes.length;
 	const links = [];
@@ -168,7 +169,7 @@ function auto_detect_edges(nodes, neighbours, debug=false) {
 
 
 
-function make_120cell_vertices() {
+export function make_120cell_vertices() {
 	const phi = 0.5 * (1 + Math.sqrt(5));  
 	const r5 = Math.sqrt(5);   
 	const phi2 = phi * phi;    
@@ -230,7 +231,7 @@ function fingerprint(ids) {
 
 
 
-function auto_120cell_faces(links) {
+export function auto_120cell_faces(links) {
 	const faces = [];
 	const seen = {};
 	let id = 1;
@@ -486,7 +487,7 @@ function colour_next_dodeca_maybe(nodes, links, faces, colours, dd, nextf, nextd
 	const nextvs = dodecahedron_vertices(nextdd);
 	// get the initial colour permutations from the existing labels;
 	const p = [];
-	for( i = 0; i < 5; i ++ ) {
+	for( let i = 0; i < 5; i ++ ) {
 		p[i] = colours[nextvs[i]];
 	}
 	const nlabels = colour_dodecahedron_from_face(nextdd, p);
@@ -668,10 +669,12 @@ function arctic(nodes, links, faces, startf, startn, max) {
 
 
 
+// this is the final one that works for the whole 120-cell
 
-function arctic_two(nodes, links, faces, startf, startn) {
+export function label_120cell(nodes, links, faces, startf, startn) {
 	const pole = face_plus_to_dodecahedron(faces, startf, startn);
 	const dds = [ pole ];
+	const dd_families = { "0": [ pole ] }
 
 	const seen = {};
 	seen[dd_fingerprint(pole)] = true;
@@ -679,12 +682,15 @@ function arctic_two(nodes, links, faces, startf, startn) {
 	const colours = colour_dodecahedron_from_face(dds[0], [ 1, 2, 3, 4, 5 ] );
 	const vs = dodecahedron_vertices(dds[0]);
 
+	dd_families["1"] = [];
+
 	for( const face of pole ) {
 		const [ nextdd, ncolours ] = follow_and_colour(
 			nodes, links, faces, colours, pole, face
 		);
 		add_colours(colours, ncolours);
 		dds.push(nextdd);
+		dd_families["1"].push(nextdd);
 		seen[dd_fingerprint(nextdd)] = true;
 	}
 
@@ -693,6 +699,8 @@ function arctic_two(nodes, links, faces, startf, startn) {
     // 1, 12, 20, 12, 30 = 75
     // 0  1   13, 33, 45
 
+	dd_families["2"] = [];
+
 	for( const a of dds.slice(1, 13) ) {
 		for( const i of [ 6, 7, 8, 9, 10 ] ) {
 			const [ nextdd, ncolours ] = follow_and_colour(
@@ -702,6 +710,7 @@ function arctic_two(nodes, links, faces, startf, startn) {
 			if( !(fp in seen) ) {
 				add_colours(colours, ncolours);
 				dds.push(nextdd);
+				dd_families["2"].push(nextdd);
 				seen[fp] = true;
 			}
 		}
@@ -709,6 +718,7 @@ function arctic_two(nodes, links, faces, startf, startn) {
 
 	// meridians = 45
 
+	dd_families["3"] = [];
 	for( const a of dds.slice(1, 13) ) {
 		const [ nextdd, ncolours ] = follow_and_colour(
 			nodes, links, faces, colours, a, a[11]
@@ -717,11 +727,16 @@ function arctic_two(nodes, links, faces, startf, startn) {
 		if( !(fp in seen) ) {
 			add_colours(colours, ncolours);
 			dds.push(nextdd);
+			dd_families["3"].push(nextdd);
 			seen[fp] = true;
 		}
 	}
 
 	// the 30 equatorials?
+
+
+	dd_families["4"] = [];
+
 	for( const a of dds.slice(13, 46) ) {
 		for( const i of [ 6, 7, 8, 9, 10 ] ) {
 			const [ nextdd, ncolours ] = follow_and_colour(
@@ -730,12 +745,15 @@ function arctic_two(nodes, links, faces, startf, startn) {
 			const fp = dd_fingerprint(nextdd);
 			if( !(fp in seen) ) {
 				add_colours(colours, ncolours);
+				dd_families["4"].push(nextdd);
 				dds.push(nextdd);
 				seen[fp] = true;
 			}
 		}
 	}
 
+	dd_families["5"] = [];
+
 	for( const a of dds.slice(33, 76) ) {
 		for( const i of [ 6, 7, 8, 9, 10 ] ) {
 			const [ nextdd, ncolours ] = follow_and_colour(
@@ -745,12 +763,18 @@ function arctic_two(nodes, links, faces, startf, startn) {
 			if( !(fp in seen) ) {
 				add_colours(colours, ncolours);
 				dds.push(nextdd);
+				dd_families["5"].push(nextdd);
 				seen[fp] = true;
 			}
 		}
 	}
 
+
 	// this should get the rest or explode!
+
+	dd_families["6"] = [];
+
+
 	for( const a of dds ) {
 		for( const i of [ 6, 7, 8, 9, 10 ] ) {
 			const [ nextdd, ncolours ] = follow_and_colour(
@@ -759,6 +783,7 @@ function arctic_two(nodes, links, faces, startf, startn) {
 			const fp = dd_fingerprint(nextdd);
 			if( !(fp in seen) ) {
 				add_colours(colours, ncolours);
+				dd_families["6"].push(nextdd);
 				dds.push(nextdd);
 				seen[fp] = true;
 			}
@@ -772,7 +797,7 @@ function arctic_two(nodes, links, faces, startf, startn) {
 	}
 
 
-	return { dodecahedra: dds, labels: labels };
+	return { dodecahedra: dds, labels: labels, families: dd_families };
 }
 
 
@@ -815,7 +840,6 @@ function make_120cell_cells(faces) {
 		for( const dd of dds ) {
 			const fp = dd_fingerprint(dd);
 			if( ! (fp in seen) ) {
-				//console.log(`added dodeca ${fp}`);
 				const d = {
 					id: i,
 					faces: dd,
@@ -927,9 +951,44 @@ function make_dodecahedron_vertices() {
 }
  
 
-// const nodes = make_120cell_vertices();
-// const links = auto_detect_edges(nodes, 4);
-// const faces = auto_120cell_faces(links);
+// this one does the coherent indexing / partition into 600-cells
+
+export function make_labelled_120cell() {
+	const nodes = make_120cell_vertices();
+	const links = auto_detect_edges(nodes, 4);
+	const faces = auto_120cell_faces(links);
+
+	const labelled = label_120cell(nodes, links, faces, faces[0], 341);
+	return labelled;
+}
+
+export function make_layered_120cell() {
+	const labelled = make_labelled_120cell();
+
+	// relabel by layer
+
+	const layer_dds = labelled["families"];
+	const vertices_layers = {};
+	const seen = {};
+
+	for( const layer of [ "0", "1", "2", "3", "4", "5", "6"] ) {
+		vertices_layers[layer] = [];
+		for( const dd of layer_dds[layer] ) {
+			for( const face of dd ) {
+				for( const n of face.nodes ) {
+					if( !seen[n] ) {
+						vertices_layers[layer].push(n);
+						seen[n] = true;
+					}
+				}
+			}
+		}
+	}
+	return vertices_layers;
+
+}
+
+
 
 
 // console.log("Calculating 120-cell colours")

main.js

@@ -23,6 +23,9 @@ scene.add(light);
 const amblight = new THREE.AmbientLight(0xffffff, 0.5);
 scene.add(amblight);
 
+camera.position.set(1, 1, 3);
+
+camera.lookAt(0, 0, 0);
 camera.position.z = 4;
 
 const renderer = new THREE.WebGLRenderer({antialias: true});
@@ -59,51 +62,26 @@ for( const face_m of face_ms ) {
 }
 
 
-const STRUCTURES = {
-	'5-cell': POLYTOPES.cell5(),
-	'16-cell': POLYTOPES.cell16(),
-	'tesseract': POLYTOPES.tesseract(),
-	'24-cell': POLYTOPES.cell24(),
-	'dodecahedron': POLYTOPES.dodecahedron(),
-	'120-cell': POLYTOPES.cell120(),
-	'600-cell': POLYTOPES.cell600(),
-};
+const STRUCTURES = [ POLYTOPES.cell120_inscribed() ];
 
-const INSCRIBED = {
-	'tesseract': POLYTOPES.tesseract_inscribed(),
-	'24-cell': POLYTOPES.cell24_inscribed(),
-	'120-cell': POLYTOPES.cell120_inscribed(),
-	'600-cell': POLYTOPES.cell600_inscribed(),
-	'dodecahedron': POLYTOPES.dodecahedron_inscribed(),
-};
+const STRUCTURES_BY_NAME = {};
 
-const ALL_INSCRIBED = {
-	'tesseract': POLYTOPES.tesseract_all_inscribed(),
-	'24-cell': POLYTOPES.cell24_all_inscribed(),
-	'120-cell': POLYTOPES.cell120_all_inscribed(),
-	'600-cell': POLYTOPES.cell600_all_inscribed(),
-	'dodecahedron': POLYTOPES.dodecahedron_all_inscribed(),
-}
+STRUCTURES.map((s) => STRUCTURES_BY_NAME[s.name] = s);
 
 let shape = false;
+let structure = false;
+let node_show = [];
+let link_show = []; 
 
-function createShape(name, inscribed, all) {
+
+function createShape(name) {
 	if( shape ) {
 		scene.remove(shape);
 	}
-	let structure = STRUCTURES[name];
-	if( inscribed ) {
-		if( name in INSCRIBED ) {
-			if( all ) {
-				structure = ALL_INSCRIBED[name];
-			} else {
-				structure = INSCRIBED[name];
-			}
-		} 
-	}
-
+	structure = STRUCTURES_BY_NAME[name];
 	shape = new FourDShape(node_ms, link_ms, face_ms, structure);
 	scene.add(shape);
+	setVisibility(structure.options[0].name);
 }
 
 // initialise gui and read params from URL
@@ -136,12 +114,27 @@ function setLinkOpacity(o, primary) {
 
 let gui; // 
 
+
 function changeShape() {
-	console.log("change shape!")
-	createShape(gui.params.shape, gui.params.inscribed, gui.params.inscribe_all);
+	createShape(gui.params.shape);	
 }
 
-gui = new FourDGUI(changeShape, setColors, setBackground, setLinkOpacity);
+function setVisibility(option_name) {
+	const option = structure.options.filter((o) => o.name === option_name);
+	node_show = option[0].nodes;
+	link_show = option[0].links;
+}
+
+
+
+gui = new FourDGUI(
+	STRUCTURES,
+	changeShape,
+	setColors,
+	setBackground,
+	setLinkOpacity,
+	setVisibility
+);
 
 // these are here to pick up colour settings from the URL params
 setColors(gui.params.color);
@@ -184,7 +177,7 @@ renderer.domElement.addEventListener("pointerup", (event) => {
 	dragging = false;
 })
 
-createShape(gui.params.shape, gui.params.inscribed, gui.params.inscribe_all);
+createShape(gui.params.shape);
 
 function animate() {
 	requestAnimationFrame( animate );
@@ -203,7 +196,7 @@ function animate() {
 	shape.hyperplane = gui.params.hyperplane;
 	shape.link_scale = gui.params.thickness;
 	shape.node_scale = gui.params.nodesize;
-	shape.render3(rotations);
+	shape.render3(rotations, node_show, link_show);
 
 	renderer.render( scene, camera );
 }

polytopes.js

@@ -61,6 +61,7 @@ export const cell5 = () => {
 	const r5 = Math.sqrt(5);
 	const r2 = Math.sqrt(2) / 2;
 	return {
+		name: '5-cell',
 		nodes: [
 	      {id:1, label: 1, x: r2, y: r2, z: r2, w: -r2 / r5 },
 	      {id:2, label: 2, x: r2, y: -r2, z: -r2, w: -r2 / r5 },
@@ -106,6 +107,7 @@ export const cell16 = () => {
 	const links = auto_detect_edges(nodes, 6);
 
 	return {
+		name: '16-cell',
 		nodes: nodes,
 		links: links,
 		geometry: {
@@ -133,12 +135,18 @@ export const tesseract = () => {
 	const links = auto_detect_edges(nodes, 4);
 
 	return {
+		name: 'tesseract',
 		nodes: nodes,
 		links: links,
 		geometry: {
 			node_size: 0.02,
 			link_size: 0.02
-		}
+		},
+		base: {},
+		options: [
+			[ 'One inscribed 16-cell', {} ],
+			[ 'Both inscribed 16-cells', {} ],
+		],
 	};
 }
 
@@ -203,7 +211,12 @@ export const cell24 = () => {
 		geometry: {
 			node_size: 0.02,
 			link_size: 0.02
-		}
+		},
+		base: {},
+		options: [
+			[ 'One inscribed 16-cell', {} ],
+			[ 'All inscribed 16-cells', {} ],
+		]
 	};
 }
 
@@ -332,6 +345,8 @@ function make_120cell_vertices() {
 
 
 
+
+
 function label_nodes(nodes, ids, label) {
 	nodes.filter((n) => ids.includes(n.id)).map((n) => n.label = label);
 }
@@ -339,16 +354,8 @@ function label_nodes(nodes, ids, label) {
 
 
 
-
-
-
-
-
-
-
 function label_faces_120cell(nodes, faces, cfaces, label) {
 	const ns = new Set();
-	console.log(`label faces from ${cfaces}`);
 	for( const fid of cfaces ) {
 		const face = faces.filter((f)=> f.id === fid );
 		if( face.length > 0 ) {
@@ -388,6 +395,16 @@ function label_120cell(nodes) {
 
 
 
+
+
+function layered_120cell(nodes, max_layer) {
+	for (const cstr in CELL120.LAYERS ) {
+		label_nodes(nodes, CELL120.LAYERS[cstr], Number(cstr));
+	}
+}
+
+
+
 function link_labels(nodes, link) {
 	const n1 = nodes.filter((n) => n.id === link.source);
 	const n2 = nodes.filter((n) => n.id === link.target);
@@ -403,44 +420,76 @@ export const cell120 = () => {
 	label_120cell(nodes);
 
 	return {
+		name: '120-cell',
 		nodes: nodes,
 		links: links,
 		geometry: {
 			node_size: 0.02,
 			link_size: 0.02
 		},
+		base: {},
+		options: [
+			[ 'One inscribed 600-cell', {} ],
+			[ 'All inscribed 600-cells', {} ],
+		]
+	}
+}
+
+export const cell120_layered = (max) => {
+	const nodes  = make_120cell_vertices();
+	const links = auto_detect_edges(nodes, 4);
+
+	layered_120cell(nodes);
+
+	return {
+		name: '120-cell layered',
+		nodes: nodes,
+		links: links,
+		geometry: {
+			node_size: 0.02,
+			link_size: 0.02
+		},
+		options: [
+		]
 	}
 }
 
 
-const cell120_some_inscribed = (ps) => {
+
+
+export const cell120_inscribed = () => {
 	const nodes  = make_120cell_vertices();
 	const links = auto_detect_edges(nodes, 4);
 
 	label_120cell(nodes);
 
-	const all_links = links;
-	all_links.map((l) => l.label = 0);
+	links.map((l) => l.label = 0);
 
-	for( const p of ps) {
+	for( const p of [ 1, 2, 3, 4, 5 ]) {
 		const nodes600 = nodes.filter((n) => n.label === p);
 		const links600 = auto_detect_edges(nodes600, 12);
 		links600.map((l) => l.label = p);
-		all_links.push(...links600);
+		links.push(...links600);
 	}
 
 	return {
+		name: '120-cell inscribed',
 		nodes: nodes,
-		links: all_links,
+		links: links,
 		geometry: {
 			node_size: 0.02,
 			link_size: 0.02
 		},
+		options: [
+			{ name: "none", links: [ 0 ]},
+			{ name: "one", links: [ 0, 1 ] },
+			{ name: "all", links: [ 0, 1, 2, 3, 4, 5 ] }
+		]
 	}
 }
 
-export const cell120_inscribed = () => cell120_some_inscribed([1]);
-export const cell120_all_inscribed = () => cell120_some_inscribed([1,2,3,4,5]);
+// export const cell120_inscribed = () => cell120_some_inscribed([1]);
+// export const cell120_all_inscribed = () => cell120_some_inscribed([1,2,3,4,5]);
 
 
 // Schoute's partition via https://arxiv.org/abs/1010.4353
@@ -735,3 +784,4 @@ const dodecahedron_some_inscribed = (ps) => {
 export const dodecahedron_inscribed = () => dodecahedron_some_inscribed([1]);
 export const dodecahedron_all_inscribed = () => dodecahedron_some_inscribed([1,2,3,4,5]);
 
+