Antlion / Components / Startline Capsule
Startline CapsuleSTARTLINE-003
Start line as a capsule - two equal semicircles joined by straight sides. The classic athletics track outline.
1Plan & setup
2Section
32D layout
43D solids
5Analysis
Fig. 1 — PortsReads left, writes right
Field Info FieldObject · itemThe field, straight from Field
Source Outline SourceCurve · itemBuild the shape around this curve instead
Arc Shift ShiftNumber · itemHow far each semicircle center sits from the field center
Arc Radius RadiusNumber · itemRadius of the two end semicircles
Panel Values PanelObject · itemEvery value from Input Panel, as one bundle
Start Line StartObject · itemThe start line as one object
Start Line Curve CurveCurve · itemThe start line itself, a closed curve in plan
Arc Centers CentersPoint · listThe two semicircle center points, right then left
Arc Radii RadiiNumber · listRadius of each semicircle
Debug Text · itemDeveloper diagnostic output for tracking down bugs
Colored ports carry the chain from one component to the next. The rest are values you set once.
Inputs
- Field Info
FieldThe field, straight from Field - gives the outline and its rotation - Source Outline
SourceBuild the shape around this curve instead. Used only when Field Info is not wired - Arc Shift
ShiftHow far each semicircle center sits from the field center (default 42195 mm) - Arc Radius
RadiusRadius of the two end semicircles (default 48000 mm) - Panel Values
PanelEvery value from Input Panel, as one bundle. Anything you wire in yourself wins over it
Outputs
- Start Line
StartThe start line as one object - curve plus its arc data. Wire into Axis - Start Line Curve
CurveThe start line itself, a closed curve in plan - Arc Centers
CentersThe two semicircle center points, right then left - Arc Radii
RadiiRadius of each semicircle - Debug
DebugDeveloper diagnostic output for tracking down bugs. Copy this when reporting a problem
- Component
- STARTLINE-003
- Ribbon
- Bowl ▸ Section 1
- Tier
- core
- Ports
- 5 in · 5 out
- Version
- 1.0.11
- Checked
- 2026-10-07