{ "model": { "rank": 2055, "code": "thing-q37555", "model_id": "vr.tr.polygon", "name": "polygon", "purpose": "Let an agent handle polygons by sides, angles, regularity, convexity and area, and link extended notions appropriately.", "family": "Thing Registry", "category": "Cross-cutting context", "status": "research-draft", "kind": "thing", "plane": "XCT", "domain": "XCT.QLT", "industry": "", "version": "", "url": "/models/thing/q37555/", "tier": 2, "score": 117, "payload": { "layer": "wikidata", "aliases": [ "apeirogon", "pseudogon", "◊", "teragon", "polyomino", "dodecomino", "decomino", "hexomino", "heptomino", "octomino", "tromino", "nonomino", "star-shaped polygon", "hexacontaheptagon", "Reinhardt polygon", "octadecagon", "tetradecagon", "spirolateral", "heptacontatrigon", "hexacontaoctagon", "octacontapentagon", "enneacontaheptagon", "180-gon", "144-gon", "102-gon", "109-gon", "240-gon", "720-gon", "128-gon", "256-gon", "pentacontahexagon", "pentacontatetragon", "heptacontaoctagon", "octacontatetragon", "108-gon", "pentacontaheptagon", "hexacontatrigon", "hexacontapentagon", "polypent", "equidiagonal polygon" ], "aliasCount": 219, "merged": 221, "knownIn": 117, "facets": null, "markers": [], "lexicalClass": "", "senseRank": null, "alsoRegisteredAs": null, "source": { "dataset": "wikidata", "item": "Q37555", "url": "https://www.wikidata.org/wiki/Q37555", "license": "CC0 1.0" } }, "research": { "vercy": "1.0-draft", "publication": { "status": "research-draft", "adjudicationStatus": "unreviewed", "publishableCanonical": false, "generatedAt": "2026-09-11T07:15:41Z", "providers": [ "Claude" ], "breadth": "written by Claude from model knowledge without web access - no source was read, every claim is a lead to verify", "pass": 2, "wave": 1, "engine": "claude" }, "metaModel": { "id": "THING-Q37555", "registryId": "vr.tr.polygon", "name": "polygon", "version": "0.2.0-wave.1", "entryKind": "thing", "family": "Thing Registry", "domain": [ "XCT.QLT" ], "status": "research-draft" }, "canonicalUrl": "https://ver.cy/models/thing/q37555/", "model": { "registry_id": "vr.tr.polygon", "name": "polygon", "purpose": "Let an agent handle polygons by sides, angles, regularity, convexity and area, and link extended notions appropriately.", "definition": "A plane figure bounded by a finite chain of straight line segments closing in a loop, such as triangles, quadrilaterals, pentagons and hexagons; extended notions include apeirogons and polyominoes built from squares.", "what_it_is_for": "Geometry, design, computer graphics, mapping and tiling.", "affordances": [ "compute area and perimeter", "classify by sides and angles", "triangulate for graphics", "tile the plane with suitable polygons" ], "distinguishing_features": [ "Straight sides, closed", "Interior angle sum (n - 2) x 180 degrees", "Regular, convex or concave", "Self-intersecting forms exist" ], "appearance": "Closed flat shapes with straight sides.", "visual_identification": [ "Number of sides", "Names such as hexagon", "Polyominoes are shapes made of squares" ], "physical_properties": [], "families_and_kinds": [ "triangles", "quadrilaterals", "regular polygons", "star polygons", "polyominoes (related)" ], "related_models": [ { "relation": "is a kind of", "target": "plane figure", "why": "category" }, { "relation": "includes", "target": "square", "why": "example" }, { "relation": "forms faces of", "target": "polyhedron", "why": "solids" }, { "relation": "is used in", "target": "computer graphics and GIS", "why": "applications" } ], "identifiers": [], "standards_and_regulation": [ "OGC Simple Features for polygons in GIS" ], "failure_modes_and_hazards": [ "Area errors for self-intersecting polygons", "Winding-order errors in GIS" ], "in_scope": [], "out_of_scope": [], "characteristics": [] }, "sources": [], "structure": { "bundles": [ { "id": "shape", "name": "Shape", "description": "Which polygon.", "rationale": "Sides define it.", "layers": [ { "id": "sides", "name": "Sides", "description": "Count.", "findings": [ { "id": "sides-finding", "name": "Sides", "description": "Sides.", "questions": [ { "text": "How many sides does it have?", "kind": "measurement" }, { "text": "Is it regular?", "kind": "boundary" } ] } ] }, { "id": "convexity", "name": "Convexity", "description": "Convex or concave.", "findings": [ { "id": "convexity-finding", "name": "Convexity", "description": "Convexity.", "questions": [ { "text": "Is it convex, concave or self-intersecting?", "kind": "definition" }, { "text": "How does that affect calculations?", "kind": "boundary" } ] } ] } ] }, { "id": "measures", "name": "Measures", "description": "Area and angles.", "rationale": "Formulas apply.", "layers": [ { "id": "area", "name": "Area", "description": "Formula.", "findings": [ { "id": "area-finding", "name": "Area", "description": "Area.", "questions": [ { "text": "What is its area?", "kind": "measurement" }, { "text": "Which formula is used?", "kind": "definition" } ] } ] }, { "id": "angles", "name": "Angles", "description": "Interior sum.", "findings": [ { "id": "angles-finding", "name": "Angles", "description": "Angles.", "questions": [ { "text": "What are its interior angles?", "kind": "measurement" }, { "text": "What is their sum?", "kind": "measurement" } ] } ] } ] }, { "id": "computing", "name": "Computing", "description": "Graphics and GIS.", "rationale": "Polygons are data.", "layers": [ { "id": "graphics", "name": "Graphics", "description": "Triangulation.", "findings": [ { "id": "graphics-finding", "name": "Graphics", "description": "Graphics.", "questions": [ { "text": "How is it triangulated for rendering?", "kind": "action" }, { "text": "Is winding order consistent?", "kind": "boundary" } ] } ] }, { "id": "gis", "name": "GIS", "description": "Geometries.", "findings": [ { "id": "gis-finding", "name": "GIS", "description": "GIS polygons.", "questions": [ { "text": "Is the polygon valid under the GIS standard?", "kind": "boundary" }, { "text": "In which coordinate system?", "kind": "definition" } ] } ] } ] }, { "id": "tiling", "name": "Tiling", "description": "Patterns.", "rationale": "Some polygons tile.", "layers": [ { "id": "tiles", "name": "Tiles", "description": "Tessellation.", "findings": [ { "id": "tiles-finding", "name": "Tiles", "description": "Tiling.", "questions": [ { "text": "Can this polygon tile the plane?", "kind": "boundary" }, { "text": "In which pattern?", "kind": "definition" } ] } ] }, { "id": "related", "name": "Related shapes", "description": "Polyominoes.", "findings": [ { "id": "related-finding", "name": "Related", "description": "Related shapes.", "questions": [ { "text": "Is a polyomino or apeirogon meant instead?", "kind": "boundary" }, { "text": "Which entry fits?", "kind": "action" } ] } ] } ] } ] }, "openQuestions": [ "Should polygon types be separate entries?", "How should GIS polygons be linked?", "How should polyominoes be split off?" ], "statistics": { "bundles": 4, "layers": 8, "findings": 8, "questions": 16 } }, "draft": { "generator": "vr.draft.v3", "status": "draft-generated", "researched": false, "archetype": "abstract concept", "method": "Written from the archetype playbook - what this kind of thing needs beyond identity and provenance - and from the structure that recurred across 6,333 models already researched by two engines. Applied to this entry by rule. No source was read for this thing and no claim here is researched. This entry carries no facets of its own, so they were inferred from its domain - a guess about a whole domain applied to one thing.", "facetsInferred": true, "nextPass": "A researcher replaces this draft with a sourced specification. Treat every sentence below as a proposal to argue with.", "purpose": "Give an agent a durable, checkable way to recognise a polygon, record what state it is in, and decide what may be done with it.", "whatItIs": "Let an agent handle polygons by sides, angles, regularity, convexity and area, and link extended notions appropriately.", "characteristics": { "substance": "abstract", "origin": "conceptual", "agency": "inert" }, "whatYouCanDoWithIt": [ "observed and measured" ], "distinguishingFeatures": [ "Names folded into this entry, which a task may need to split apart again: apeirogon, pseudogon, ◊, teragon, polyomino, dodecomino, decomino, hexomino, heptomino, octomino, tromino, nonomino.", "221 finer distinctions are held as aliases rather than separate entries, because telling them apart needs a task that asks for it.", "Described in 117 Wikipedia languages, which is a measure of how widely the thing is known, not of how important it is." ], "openQuestionsForResearch": [ "Which of the bundles below does a real task actually need, and which are ceremony?", "What does this thing have that the facets do not capture at all?", "Which neighbouring kind is most often confused with a polygon, and on what evidence are they told apart?" ], "whatItIsMadeOf": "an abstraction with no physical instance", "physicalCharacter": [ "Does nothing on its own; everything it does, something else did to it.", "These come from the domain this entry sits in rather than from the entry itself, so treat them as a first guess about the whole domain applied to one thing." ], "whatCanBeDoneWithIt": [ "observe it, measure it, record its state" ], "howItIsRecognised": [ "Nothing to see. What is recognised is an instance of it, and which instances count is exactly what is argued about." ], "relatedModels": [ { "relation": "covers", "note": "Finer kinds folded into this entry because telling them apart needs a task that asks for it. Each is a model waiting to be split out when one does.", "targets": [ "apeirogon", "pseudogon", "◊", "teragon", "polyomino", "dodecomino", "decomino", "hexomino", "heptomino", "octomino", "tromino", "nonomino" ] } ], "standing": "Described in 117 Wikipedia languages, which measures how widely it is written about rather than how important or how common it is. 221 finer distinctions are held inside this entry as names rather than as separate models.", "structure": { "bundles": [ { "id": "identity-and-classification", "name": "Identity, naming and classification", "description": "How an agent tells one polygon from another, and a polygon from things that resemble it.", "rationale": "Recognition comes before every other claim. Without stable identity nothing else in the model can be trusted to be about the same thing twice.", "layers": [ { "id": "naming-and-identifiers", "name": "Names and identifiers", "description": "The names this thing goes by and the identifiers that survive translation and time.", "findings": [ { "id": "preferred-name-and-aliases", "name": "Preferred name, aliases and local names", "description": "Which name to use, which names mean the same thing, and which merely sound similar.", "questions": [ { "id": "preferred-name-and-aliases-q01", "text": "What identifies and describes the name of a polygon, and in what units or vocabulary?", "kind": "definition", "answer_data": [ "identifiers", "types and classes", "values with units", "explicit unknowns" ] }, { "id": "preferred-name-and-aliases-q02", "text": "Who or what asserted this about the name of a polygon, by which method, and when was it true?", "kind": "provenance", "answer_data": [ "authority", "method", "evidence", "event time", "knowledge time" ] }, { "id": "preferred-name-and-aliases-q03", "text": "What may an agent decide or do once the name of a polygon is known, and what must it refuse?", "kind": "action", "answer_data": [ "permitted actions", "preconditions", "refusals", "escalation" ] } ] }, { "id": "stable-identifiers", "name": "Stable identifiers and external keys", "description": "Identifiers that keep pointing at this kind of thing across systems and languages.", "questions": [ { "id": "stable-identifiers-q01", "text": "What identifies and describes an identifier for a polygon, and in what units or vocabulary?", "kind": "definition", "answer_data": [ "identifiers", "types and classes", "values with units", "explicit unknowns" ] }, { "id": "stable-identifiers-q02", "text": "Who or what asserted this about an identifier for a polygon, by which method, and when was it true?", "kind": "provenance", "answer_data": [ "authority", "method", "evidence", "event time", "knowledge time" ] }, { "id": "stable-identifiers-q03", "text": "What may an agent decide or do once an identifier for a polygon is known, and what must it refuse?", "kind": "action", "answer_data": [ "permitted actions", "preconditions", "refusals", "escalation" ] } ] } ] }, { "id": "classification-and-granularity", "name": "Classification and granularity", "description": "Where a polygon sits among kinds, and how finely a task needs to cut it.", "findings": [ { "id": "kind-and-parents", "name": "Kind, parents and neighbouring kinds", "description": "The classes this thing belongs to and the ones it is next to.", "questions": [ { "id": "kind-and-parents-q01", "text": "What identifies and describes the kind of a polygon, and in what units or vocabulary?", "kind": "definition", "answer_data": [ "identifiers", "types and classes", "values with units", "explicit unknowns" ] }, { "id": "kind-and-parents-q02", "text": "Who or what asserted this about the kind of a polygon, by which method, and when was it true?", "kind": "provenance", "answer_data": [ "authority", "method", "evidence", "event time", "knowledge time" ] }, { "id": "kind-and-parents-q03", "text": "What may an agent decide or do once the kind of a polygon is known, and what must it refuse?", "kind": "action", "answer_data": [ "permitted actions", "preconditions", "refusals", "escalation" ] } ] }, { "id": "distinguishing-features", "name": "Distinguishing features", "description": "What separates a polygon from the things most often confused with it.", "questions": [ { "id": "distinguishing-features-q01", "text": "What identifies and describes what distinguishes a polygon, and in what units or vocabulary?", "kind": "definition", "answer_data": [ "identifiers", "types and classes", "values with units", "explicit unknowns" ] }, { "id": "distinguishing-features-q02", "text": "Who or what asserted this about what distinguishes a polygon, by which method, and when was it true?", "kind": "provenance", "answer_data": [ "authority", "method", "evidence", "event time", "knowledge time" ] }, { "id": "distinguishing-features-q03", "text": "What may an agent decide or do once what distinguishes a polygon is known, and what must it refuse?", "kind": "action", "answer_data": [ "permitted actions", "preconditions", "refusals", "escalation" ] } ] } ] } ] }, { "id": "state-and-lifecycle", "name": "State and lifecycle", "description": "The states a polygon passes through and the events that move it between them.", "rationale": "Most decisions about a thing depend on what state it is in now, which is a claim with a time on it, not a property.", "layers": [ { "id": "lifecycle-stages", "name": "Lifecycle stages", "description": "From coming into existence to ceasing to be one of these.", "findings": [ { "id": "stages-and-transitions", "name": "Stages and transitions", "description": "The stages worth naming and what moves a polygon between them.", "questions": [ { "id": "stages-and-transitions-q01", "text": "What identifies and describes the lifecycle of a polygon, and in what units or vocabulary?", "kind": "definition", "answer_data": [ "identifiers", "types and classes", "values with units", "explicit unknowns" ] }, { "id": "stages-and-transitions-q02", "text": "Who or what asserted this about the lifecycle of a polygon, by which method, and when was it true?", "kind": "provenance", "answer_data": [ "authority", "method", "evidence", "event time", "knowledge time" ] }, { "id": "stages-and-transitions-q03", "text": "What may an agent decide or do once the lifecycle of a polygon is known, and what must it refuse?", "kind": "action", "answer_data": [ "permitted actions", "preconditions", "refusals", "escalation" ] } ] } ] }, { "id": "observations-and-status", "name": "Observations and current status", "description": "What is observed about a polygon, how often and by whom.", "findings": [ { "id": "observation-record", "name": "Observation record", "description": "How an observation of a polygon is recorded so that it can be superseded rather than overwritten.", "questions": [ { "id": "observation-record-q01", "text": "What identifies and describes an observation of a polygon, and in what units or vocabulary?", "kind": "definition", "answer_data": [ "identifiers", "types and classes", "values with units", "explicit unknowns" ] }, { "id": "observation-record-q02", "text": "Who or what asserted this about an observation of a polygon, by which method, and when was it true?", "kind": "provenance", "answer_data": [ "authority", "method", "evidence", "event time", "knowledge time" ] }, { "id": "observation-record-q03", "text": "What may an agent decide or do once an observation of a polygon is known, and what must it refuse?", "kind": "action", "answer_data": [ "permitted actions", "preconditions", "refusals", "escalation" ] } ] } ] } ] }, { "id": "definitions-in-contest", "name": "Definitions and who holds them", "description": "What polygon is taken to mean, and by whom.", "rationale": "When a field disagrees about a concept, the disagreement is the content. A model that picks one definition silently destroys the information.", "layers": [ { "id": "competing-definitions", "name": "Competing definitions", "description": "The main readings and the traditions behind them.", "findings": [ { "id": "definition-map", "name": "Definitions and their holders", "description": "Each definition with the school or body that holds it.", "questions": [ { "id": "definition-map-q01", "text": "Which definitions of polygon are in use, and which tradition or body holds each?", "kind": "definition" }, { "id": "definition-map-q02", "text": "What turns on the difference between them in practice?", "kind": "boundary" } ] } ] }, { "id": "operationalisation", "name": "Operationalisation", "description": "How it is measured or applied when it has to be.", "findings": [ { "id": "operational-record", "name": "Measures and proxies", "description": "Instruments and indicators used to stand in for it.", "questions": [ { "id": "operational-record-q01", "text": "How is polygon operationalised or measured in practice, and by what instrument?", "kind": "measurement" }, { "id": "operational-record-q02", "text": "What does that operationalisation leave out, and when does that matter?", "kind": "boundary" } ] } ] } ] }, { "id": "instances-and-use", "name": "Instances, use and consequence", "description": "What counts as an instance of polygon and what follows from calling something that.", "rationale": "Applying a concept is an act with consequences, so a model must say what the label licenses and what it does not.", "layers": [ { "id": "instances", "name": "What counts as an instance", "description": "Clear cases, borderline cases and non-cases.", "findings": [ { "id": "instance-tests", "name": "Tests for an instance", "description": "What would settle whether something falls under it.", "questions": [ { "id": "instance-tests-q01", "text": "What would settle whether something is an instance of polygon?", "kind": "boundary" }, { "id": "instance-tests-q02", "text": "Which borderline cases are argued about, and on what grounds?", "kind": "definition" } ] } ] }, { "id": "consequence", "name": "Consequence of application", "description": "Rights, duties or decisions that follow from the label.", "findings": [ { "id": "consequence-record", "name": "What the label licenses", "description": "What an agent may do once something is classified this way.", "questions": [ { "id": "consequence-record-q01", "text": "What follows practically once something is treated as polygon?", "kind": "action" }, { "id": "consequence-record-q02", "text": "What must an agent not infer from the label alone?", "kind": "action" } ] } ] } ] }, { "id": "provenance-and-evidence", "name": "Provenance, evidence and time", "description": "Where every claim about a polygon came from and when it held.", "rationale": "A claim without a source and a time cannot be superseded, only overwritten, and an agent that overwrites loses the ability to explain itself.", "layers": [ { "id": "source-and-authority", "name": "Source and authority", "description": "Who said it, on what evidence, and how strongly.", "findings": [ { "id": "claim-provenance", "name": "Claim provenance and confidence", "description": "The authority behind each claim about a polygon and how confident it is.", "questions": [ { "id": "claim-provenance-q01", "text": "What identifies and describes a claim about a polygon, and in what units or vocabulary?", "kind": "definition", "answer_data": [ "identifiers", "types and classes", "values with units", "explicit unknowns" ] }, { "id": "claim-provenance-q02", "text": "Who or what asserted this about a claim about a polygon, by which method, and when was it true?", "kind": "provenance", "answer_data": [ "authority", "method", "evidence", "event time", "knowledge time" ] }, { "id": "claim-provenance-q03", "text": "What may an agent decide or do once a claim about a polygon is known, and what must it refuse?", "kind": "action", "answer_data": [ "permitted actions", "preconditions", "refusals", "escalation" ] } ] } ] }, { "id": "time-and-versions", "name": "Time, versions and supersession", "description": "When a claim was true, when it was learnt, and what replaced it.", "findings": [ { "id": "validity-and-supersession", "name": "Validity period and supersession", "description": "How an old claim about a polygon is retired without being erased.", "questions": [ { "id": "validity-and-supersession-q01", "text": "What identifies and describes the validity of a claim about a polygon, and in what units or vocabulary?", "kind": "definition", "answer_data": [ "identifiers", "types and classes", "values with units", "explicit unknowns" ] }, { "id": "validity-and-supersession-q02", "text": "Who or what asserted this about the validity of a claim about a polygon, by which method, and when was it true?", "kind": "provenance", "answer_data": [ "authority", "method", "evidence", "event time", "knowledge time" ] }, { "id": "validity-and-supersession-q03", "text": "What may an agent decide or do once the validity of a claim about a polygon is known, and what must it refuse?", "kind": "action", "answer_data": [ "permitted actions", "preconditions", "refusals", "escalation" ] } ] } ] } ] } ] }, "statistics": { "bundles": 5, "layers": 10, "findings": 12, "questions": 32 } } } }