Synthetic technical demo, not a permit case

How DXF geometry becomes a review pathway

This small test file demonstrates one capability: CodeTrace reads a closed polyline, measures its area, and chooses which checks to run. The file is synthetic.

Synthetic source file2D geometryTraceable
01
ReadDXF entities
02
MeasureClosed footprint
03
ClassifyPart 3 or 9
04
CheckApplicable rules

01 · Geometry evidence

Building footprint

DXF
30.000 m25.000 m750 m²CODETRACE_BUILDING_FOOTPRINT_M
File
part3-dxf-footprint-classification.dxf
SHA-256
b50f6fc339b633a1
Profile
ASCII DXF ENTITIES + named metre footprint

02 · Deterministic calculation

Shoelace formula

|Σ(xᵢyᵢ₊₁ − xᵢ₊₁yᵢ)| ÷ 21500 ÷ 2 = 750 m²
  1. P1(0, 0) m
  2. P2(30, 0) m
  3. P3(30, 25) m
  4. P4(0, 25) m

Derived, not declaredThe area comes from the four vertices of the closed polyline. It is not copied from drawing text.

03 · Applicability selection

Why Part 3 is selected

Part 3
Major occupancyGroup CResidential
Height2 storeys2 ≤ 3
Measured area750 m²750 > 600
Recommended pathwayPart 3Illustrative Part 9 envelope exceeded
The 2-storey or 750 m² building exceeds the illustrative Part 9 size envelope and is routed to Part 3.

What this result does not meanThe 600 m² threshold is part of this synthetic test mapping. It shows that inputs change which checks run. It is not an official classification.

04 · Applicable results

8 checks executed

2b48b3f3e214
Major occupancy groupCStoreys2Building height (m)9Building area (m²)750Dwelling count12Exit count2Barrier-free pathYesSprinkler coverage (%)100
DEMO-CLASS-001

Building code pathway identified

A supported review pathway is declared.

View traceDeterministic expression resolved to true.
Meets
DEMO-CLASS-SCOPE-002

Declared pathway matches classification

The declared pathway matches the deterministic classification recommendation.

View traceDeterministic expression resolved to true.
Meets
DEMO-P3-OCC-001

Major occupancy group identified

A supported major-occupancy group is declared.

View traceDeterministic expression resolved to true.
Meets
DEMO-P3-EXITS-001

Exit count

The declared exit count meets the illustrative threshold.

View traceDeterministic expression resolved to true.
Meets
DEMO-P3-ACCESS-001

Barrier-free path declared

A barrier-free path is declared.

View traceDeterministic expression resolved to true.
Meets
DEMO-P3-SPRINKLER-001

Sprinkler coverage

The declared sprinkler coverage meets the illustrative threshold.

View traceDeterministic expression resolved to true.
Meets
DEMO-P3-SAFETY-001

Fire-department review

The fire-department review is declared complete.

View traceDeterministic expression resolved to true.
Meets
DEMO-DATA-001

Canonical data verified

The companion data is declared verified.

View traceDeterministic expression resolved to true.
Meets

What this demo is for

Inspect one technical capability without confusing it with a permit review

Use the review workspace for the complete workflow, or Coverage and proof to see what is validated.