Started generalising / unifying inscribed links and layers as different

ways of picking out parts of a structure

fourDShape.js

@@ -20,7 +20,8 @@ class FourDShape extends THREE.Group {
 		this.node_scale = 1;
 		this.link_scale = 1;
 		this.hyperplane = HYPERPLANE;
-		this.label_visible = () => true;
+		this.node_f = () => true;
+		this.link_f = () => true;
 		this.initShapes();
 	}
 
@@ -74,7 +75,7 @@ class FourDShape extends THREE.Group {
 		link.object.children[0].rotation.x = Math.PI / 2.0;
 		const l1 = this.nodes3[link.source].label;
 		const l2 = this.nodes3[link.target].label;
-		link.object.visible = this.label_visible(l1) && this.label_visible(l2); 
+		link.object.visible = this.link_f(link.label); 
 	}
 
 
@@ -134,19 +135,18 @@ class FourDShape extends THREE.Group {
 	}
 
 
-	render3(rotations, visibility) {
+	render3(rotations, node_f, link_f) {
-		this.label_visible = visibility;
 		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 = this.label_visible(n.label);
+			this.nodes3[n.id].object.visible = node_f(n.label);
 		}
-
+		this.link_f = link_f;
 		for( const l of this.links ) {
-			this.updateLink(l, visibility);
+			this.updateLink(l);
 		}
 
 		for( const f of this.faces ) {

gui.js

@@ -1,5 +1,20 @@
 import { GUI } from 'lil-gui';
 
+const SHAPES = [
+	'dodecahedron', '5-cell', '16-cell', 'tesseract',
+	'24-cell', '600-cell', '120-cell',
+	'120-cell-layers', '120-cell-all-inscribed'
+	];
+
+const SHAPE_OPTIONS = {
+	'dodecahedron': [ 'inscribed', 'all_inscribed'],
+	'tesseract': [ 'inscribed', 'all_inscribed'],
+	'16-cell': [ 'inscribed', 'all_inscribed'],
+	'24-cell': [ 'inscribed', 'all_inscribed'],
+	'600-cell': [ 'inscribed', 'all_inscribed'],
+	'120-cell': [ 'inscribed', 'all_inscribed'],
+	'120-cell-layers': [ '0', '1', '2', '3' ,'4', '5', '6' ]
+};
 
 
 const DEFAULTS = {
@@ -45,14 +60,16 @@ class FourDGUI {
 			dpsi: this.link['dpsi'],
 			"copy link": function () { guiObj.copyUrl() }
 		};
-
+		let options_ctrl;
-		this.gui.add(this.params, 'shape',
+		this.gui.add(this.params, 'shape', SHAPES).onChange((v) => {
-			[ 'dodecahedron', '5-cell', '16-cell', 'tesseract',
+			if( SHAPE_OPTIONS[v] ) {
-				'24-cell', '600-cell', '120-cell',
+				options_ctrl = options_ctrl.options(SHAPE_OPTIONS[v]);
-				'120-cell-a', '120-cell-b', '120-cell-c', '120-cell-d', '120-cell-e', '120-cell-f' ]
+			} else {
-		).onChange(changeShape)
+				options_ctrl = options_ctrl.options([])
-		this.gui.add(this.params, 'inscribed').onChange(changeShape);
+			}
-		this.gui.add(this.params, 'inscribe_all').onChange(changeShape);
+			changeShape(v)
+		});
+		options_ctrl = this.gui.add(this.params, 'options', []);
 		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(
@@ -62,7 +79,6 @@ class FourDGUI {
 			(v) => setLinkOpacity(v, false)
 		);
 		this.gui.add(this.params, 'nodesize', 0.1, 4);
-		this.gui.add(this.params, 'visibility', [ 0, 1, 2, 3, 4, 5 ]).onChange((v) => setVisibility(v));
 		this.gui.addColor(this.params, 'color').onChange(setColor);
 		this.gui.addColor(this.params, 'background').onChange(setBackground);
 		this.gui.add(this.params, 'rotation', [ 'rigid', 'tumbling', 'inside-out', 'axisymmetrical' ]);

main.js

@@ -61,10 +61,11 @@ for( const face_m of face_ms ) {
 	face_m.opacity = FACE_OPACITY;
 }
 
-// the best way to do this -
+// generalisation of the inscription stuff
-// each STRUCTURE should present a menu of OPTIONS which
+
-// are say a set of inscribed shapes, or a subset etc
+// structure - with labels on nodes and links
-// ie 120-cell - inscribed, layers, hopf fibrations etc
+// options - a set of menu items, each one has a node and link filter
+
 
 const STRUCTURES = {
 	'5-cell': POLYTOPES.cell5(),
@@ -73,12 +74,8 @@ const STRUCTURES = {
 	'24-cell': POLYTOPES.cell24(),
 	'dodecahedron': POLYTOPES.dodecahedron(),
 	'120-cell': POLYTOPES.cell120(),
-	'120-cell-a': POLYTOPES.cell120_layered(1),
+	'120-cell-layers': POLYTOPES.cell120_layered(),
-	'120-cell-b': POLYTOPES.cell120_layered(2),
+	'120-cell-all-inscribed': POLYTOPES.cell120_all_inscribed(),
-	'120-cell-c': POLYTOPES.cell120_layered(3),
-	'120-cell-d': POLYTOPES.cell120_layered(4),
-	'120-cell-e': POLYTOPES.cell120_layered(5),
-	'120-cell-f': POLYTOPES.cell120_layered(6),
 	'600-cell': POLYTOPES.cell600(),
 };
 
@@ -150,6 +147,9 @@ function setLinkOpacity(o, primary) {
 let gui; // 
 let visible_labels = 6;
 
+let node_prune = () => true;
+let link_prune = () => true;
+
 function changeShape() {
 	createShape(gui.params.shape, gui.params.inscribed, gui.params.inscribe_all);
 }
@@ -159,6 +159,8 @@ function setVisibility(v) {
 	visible_labels = v;
 }
 
+
+
 gui = new FourDGUI(changeShape, setColors, setBackground, setLinkOpacity, setVisibility);
 
 // these are here to pick up colour settings from the URL params
@@ -221,7 +223,7 @@ function animate() {
 	shape.hyperplane = gui.params.hyperplane;
 	shape.link_scale = gui.params.thickness;
 	shape.node_scale = gui.params.nodesize;
-	shape.render3(rotations, (l) => l <= visible_labels);
+	shape.render3(rotations, node_prune, link_prune);
 
 	renderer.render( scene, camera );
 }

polytopes.js

@@ -422,15 +422,9 @@ export const cell120_layered = (max) => {
 
 	layered_120cell(nodes);
 
-	const layer_nodes = nodes.filter((n) => n.label < max);
-	const layer_links = links.filter((l) => {
-		const labels = link_labels(nodes, l);
-		return labels[0] < max && labels[1] < max
-	});
-
 	return {
-		nodes: layer_nodes,
+		nodes: nodes,
-		links: layer_links,
+		links: links,
 		geometry: {
 			node_size: 0.02,
 			link_size: 0.02