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scale

vr.tr.scale-q10858537 · thing-q10858537

Let an agent handle scale ratios by notation, conversion and domain conventions, including map and modelling scales.

Thing Registry Cross-cutting context XCT.REL
Bundle → Layer → Finding → QuestionsClassifiersWhat it isWhy it existsDistinguishing featuresWhat robots and AI may and may not doMoral aspectsOwnersLinks to other meta-modelsIdentity and identifiersDirect propertiesRecognitionCapabilities and actionsHazards and failure modesStandards and interfacesContext of useSources

Bundle → Layer → Finding → Questions Filled

4 bundles · 8 layers · 8 findings · 16 questions

Ratio Which scale.

Notation

1:n.

Notation

Scale ratio.

  1. What is the scale ratio? measurement
  2. Is it stated or shown by a bar? definition

Conversion

Real sizes.

Conversion

Conversion.

  1. What real size corresponds to this measured size? measurement
  2. Is the drawing printed at true scale? boundary
Maps Map scales.

Detail

Large vs small scale.

Detail

Map detail.

  1. Is this a large- or small-scale map? definition
  2. What detail can it show? definition

Distortion

Projection.

Distortion

Scale variation.

  1. Does scale vary across the map projection? boundary
  2. Where is it true? definition
Models Modelling scales.

Named scales

H0, N, OO.

Named

Named scales.

  1. Which named scale is this model? definition
  2. What ratio and gauge does it use? measurement

Compatibility

Mixing.

Compatibility

Compatibility.

  1. Are these models compatible in scale and gauge? boundary
  2. Which standard applies? provenance
Senses Disambiguation.

Other senses

Music, weighing, fish.

Senses

Other senses.

  1. Is a musical scale, a weighing scale or fish scales meant? boundary
  2. Which entry fits? action

Non-linear

Log and root scales.

Nonlinear

Non-linear scales.

  1. Is a non-linear chart scale meant? boundary
  2. How should it be read? definition

Classifiers Filled

Family
Thing Registry
Category
Cross-cutting context
Entry kind
thing
Plane
XCT
Domain
XCT.REL
Other names and narrower kinds
square root scale, scale model size, rail transport modelling scale

What it is Filled

The ratio between the size of a representation and the size of the thing represented, as in maps, architectural drawings and scale models, such as 1:100 or model railway scales like H0 (1:87).

Why it exists Filled

Let an agent handle scale ratios by notation, conversion and domain conventions, including map and modelling scales.

Distinguishing features Filled

  • Ratio of representation to reality
  • Large scale means more detail on maps
  • Domain-specific conventions
  • Musical and weighing scales are other senses

What robots and AI may and may not do Filled

Must not

  • Take measurements from a drawing whose scale is unknown or distorted and present them as reliable.
  • Misstate the scale of a map used for navigation or boundaries.
  • Present scaled models as full-size in marketing.

Only with a human decision

  • Using measurements from a scaled drawing for construction or legal boundaries.

May

  • State and convert scales on maps, drawings and models.
  • Check that measurements taken from a drawing account for its scale.

Moral aspects Filled

  • Scale errors in plans can cause structural or boundary disputes.
  • Misleading scale in visuals can deceive buyers.

Who is affected

  • Builders and owners
  • Map users
  • Buyers

Owners Filled

Steward

Nobody owns the concept; the author of each drawing answers for its scale.

Links to other meta-models Filled

parent

  • Q11563 - registry parent class
  • Q3481047 - registry parent class

related

  • ratio - category
  • map and scale model - applications
  • scale (music) and weighing scale - other senses
  • measurement - quantity

What else AI and robots need to interact with it Filled

Identity and identifiers required Filled

  • Vercy registry: vr.tr.scale-q10858537
  • Wikidata: Q10858537 (https://www.wikidata.org/wiki/Q10858537)

Direct properties not applicable Not applicable

Not applicable

Plane XCT: no invented physical properties.

Recognition optional Filled

  • Ratio notation 1:n
  • Scale bars
  • Named model scales such as H0 or N
  • Ratios such as 1:50000 or scale bars on maps.

Capabilities and actions required Filled

  • convert between real and scaled sizes
  • choose a suitable scale
  • read map scales
  • match model scales

Hazards and failure modes required Filled

  • Confusing large and small scale
  • Scaling errors after printing or resizing
  • Mixing model scales

Standards and interfaces required Filled

  • ISO 5455 technical drawings scales
  • NEM and NMRA model railway standards

Context of use required Filled

  • Representing large or small things at a usable size.
  • map scales
  • architectural and engineering drawing scales
  • model scales such as railway gauges
  • non-linear scales such as square root scales

Sources Filled

  1. Wikidata item Q10858537: scale - identity and sense of the item
  2. Wikipedia: Scale (ratio) - general description of the item

Open questions

  • Should model scales be separate entries?
  • How should non-linear scales be split off?
  • How should other senses be split off?

Machine files

Card as JSON Specification Card backlog vercy.card/1

Provenance

thing registry research (pass 2) · unreviewed

Built from: models/things/publications/thing-q10858537/spec.json