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roadrunner-asset-mapping

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UpdatedJuly 16, 2026 at 14:27

RoadRunner asset path lookup tables for map format conversions in MATLAB. Maps lane markings, signs, signals, barriers, objects, and lane types to RoadRunner asset paths. Use when converting map formats to RRHD, resolving asset paths, or assigning visual assets to HD Map objects.

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name	roadrunner-asset-mapping
description	RoadRunner asset path lookup tables for map format conversions in MATLAB. Maps lane markings, signs, signals, barriers, objects, and lane types to RoadRunner asset paths. Use when converting map formats to RRHD, resolving asset paths, or assigning visual assets to HD Map objects.
license	MathWorks BSD-3-Clause
user-invocable	false
metadata	{"author":"MathWorks","version":"1.0"}

RoadRunner Asset Mapping

Consolidated lookup tables for mapping source map format elements to RoadRunner project asset paths. All paths are relative to the project Assets/ folder.

When to Use

Resolving lane marking subtypes to RoadRunner .rrlms asset paths
Mapping sign codes (US MUTCD, German StVO, Japanese) to sign asset SVGs
Looking up barrier/extrusion asset paths for fence, guard rail, jersey barrier, wall
Finding prop/static object asset paths for placement in RRHD
Determining region-specific sign paths based on geoReference coordinates
Assigning lane type enums from source format lane classifications

When NOT to Use

Building RRHD objects from scratch — use roadrunner-rrhd-authoring
Performing the full Lanelet2 conversion pipeline — use roadrunner-convert-lanelet2-to-rrhd
Importing maps into RoadRunner — use roadrunner-import-scene

Key Rules

All asset paths start with Assets/ — always prefix when constructing RelativeAssetPath objects.
Extension matters. .rrlms = lane marking style, .rrcws = crosswalk style, .rrpms = polygon marking style. Using wrong extension causes "Asset file is missing" on import.
Region detection from geoReference. Use lat/lon to determine Japan/Germany/US for sign paths.
Sign naming convention. All signs use Sign_<code>.svg format based on national regulatory numbering.
Japan speed signs have a space. Sign_323 (30).svg — note space before parenthesis.

Source Data

Asset mappings are derived from the official RoadRunner project configuration XMLs:

DefaultAssets.xml — default materials and markings
ApolloAssetData.xml — Apollo/Baidu HD Map format
OpenDriveAssetData.xml — OpenDRIVE format
HEREAssetData_NA.xml / HEREAssetData_WE.xml — HERE HD Map (NA/EU)
TomTomAssetData.xml — TomTom HD Map format

These XML files are located in the RoadRunner project's configuration directory (typically <RoadRunner Project>/Configuration/).

Lane Markings

See references/laneMarkings.md for full mapping table.

Key patterns:

All marking assets are in Assets/Markings/ with .rrlms extension
Markings are keyed by type (solid/dashed/double) + color (white/yellow)
Default road center marking: SolidDoubleYellow.rrlms
Default outer boundary: SolidSingleWhite.rrlms

Signs

See references/signs.md for full mapping table.

Key patterns:

US signs: Assets/Signs/US/Regulatory Signs/ or Assets/Signs/US/Warning Signs/
German signs: Assets/Signs/Germany/Regulatory Signs/
Japan signs: Assets/Signs/Japan/Regulatory Signs/ or Assets/Signs/Japan/Warning Signs/
Speed limit signs use regulatory numbering: Sign_R2-1(30).svg (US), Sign_274(30).svg (DE), Sign_323 (30).svg (JP)
Fallbacks: Sign_R2-1(Blank).svg (US), Sign_101.svg (DE warning), Sign_215.svg (JP warning)
Sign geometry uses GeoOrientedBoundingBox (Center + Dimension + GeoOrientation)

Region detection from geoReference:

lat = geoRef(1); lon = geoRef(2);
if lat >= 24 && lat <= 46 && lon >= 122 && lon <= 154
    region = "Japan";
elseif lat >= 35 && lat <= 72 && lon >= -10 && lon <= 25
    region = "Germany";
else
    region = "US";
end

Region-specific sign paths (verified R2026a):

Sign	Japan	US	Germany
Stop	`Assets/Signs/Japan/Regulatory Signs/Sign_330-A.svg`	`Assets/Signs/US/Regulatory Signs/Sign_R1-1.svg`	`Assets/Signs/Germany/Regulatory Signs/Sign_206.svg`
Speed N	`Assets/Signs/Japan/Regulatory Signs/Sign_323 (<N>).svg`	`Assets/Signs/US/Regulatory Signs/Sign_R2-1(<N>).svg`	`Assets/Signs/Germany/Regulatory Signs/Sign_274(<N>).svg`
Fallback	`Assets/Signs/Japan/Warning Signs/Sign_215.svg`	`Assets/Signs/US/Regulatory Signs/Sign_R2-1(Blank).svg`	`Assets/Signs/Germany/Warning Signs/Sign_101.svg`

Naming convention: All signs use Sign_<code>.svg format based on national regulatory numbering (MUTCD for US, StVO for Germany, Japanese road sign numbers). Note: Japan speed signs have a space before the parenthesis: Sign_323 (30).svg.

Signals (Traffic Lights)

Configuration	Asset Path
3-light vertical (post)	`Props/Signals/Signal_3Light_Post01.fbx`
3-light vertical (bare)	`Props/Signals/Signal_3Light_Bare01.fbx_rrx`

Authoring vs Import limitation: You CAN author SignalType objects in MATLAB, add them to rrMap.Signals, and write the map to .rrhd — signal data IS written to the file. However, RoadRunner does NOT import signals from .rrhd maps. Signal data in the file is silently ignored on import. Show the asset paths and authoring code, but warn the user that signals will not appear in the RoadRunner scene after import.

Barriers & Extrusions

See references/barriers.md for full mapping table.

Key patterns:

All extrusions in Assets/Extrusions/ with .rrext or .rrext.rrmeta extension
Barriers use roadrunner.hdmap.BarrierType with ExtrusionPath

Props & Static Objects

See references/staticObjects.md for full mapping table.

Key patterns:

Props in Assets/Props/ subdirectories (Trees, Signals, TrafficControl, etc.)
Static objects use roadrunner.hdmap.StaticObjectType with AssetPath
Objects use GeoOrientedBoundingBox for placement

Lane Types

See references/laneTypes.md for full mapping table.

Crosswalks & Curve Markings

Extension rules (commonly confused):

.rrcws = crosswalk style (only for actual crosswalks)
.rrlms = lane marking style (stop lines, bike markings, zig-zag)
.rrpms = polygon marking style (striped regions, chevrons)

Type	Asset Path	Extension
Simple crosswalk	`Assets/Markings/SimpleCrosswalk.rrcws`	`.rrcws`
Continental crosswalk	`Assets/Markings/ContinentalCrosswalk.rrcws`	`.rrcws`
Ladder crosswalk	`Assets/Markings/LadderCrosswalk.rrcws`	`.rrcws`
Stop line	`Assets/Markings/StopLine.rrlms`	`.rrlms`
Striped region	`Assets/Markings/StripedRegion.rrpms`	`.rrpms`

Stencils (Road Surface Markings)

Type	Asset Path
Arrow left	`Assets/Stencils/Stencil_ArrowType4L.svg`
Arrow right	`Assets/Stencils/Stencil_ArrowType4R.svg`
STOP text	`Assets/Stencils/Stencil_STOP.svg`

Materials

Purpose	Asset Path
Road surface	`Assets/Materials/Asphalt1.rrmtl`
Sidewalk / concrete	`Assets/Materials/Concrete1.rrmtl`
Ground / grass	`Assets/Materials/Grass1.rrmtl`

Default Assets

These are the project-wide defaults (from DefaultAssets.xml):

Name	Path
Island Curb Material	`Assets/Materials/Concrete1.rrmtl`
Blank Sign	`Assets/Signs/US/Sign_BlankWhite.rrsign`
Blank Warning Sign	`Assets/Signs/US/Yellow_Blank_US.svg`
Surface Material	`Assets/Materials/Grass1.rrmtl`
Crosswalk	`Assets/Markings/SimpleCrosswalk.rrcws`
Stop Line	`Assets/Markings/StopLine.rrlms`
Parking Space Marking	`Assets/Markings/SolidSingleWhite.rrlms`
Road Surface Material	`Assets/Materials/Asphalt1.rrmtl`
Road Center Marking	`Assets/Markings/SolidDoubleYellow.rrlms`
Dashed Road Marking	`Assets/Markings/DashedSingleWhite.rrlms`
Road Outer Boundary	`Assets/Markings/SolidSingleWhite.rrlms`
Road Inner Boundary	`Assets/Markings/SolidSingleYellow.rrlms`
One Way Passing	`Assets/Markings/DashedSolidYellow.rrlms`
Vehicle	`Assets/Vehicles/Sedan.fbx`

Usage Pattern (MATLAB)

% Example: resolve marking asset path
function assetPath = resolveMarkingAsset(type, color)
    % type: "solid", "dashed", "solid_solid", etc.
    % color: "white", "yellow" (default: white)
    if nargin < 2, color = "white"; end
    % Use lookup from references/laneMarkings.md
end

All asset paths are prefixed with Assets/ when used in RRHD RelativeAssetPath objects.

Conventions

All marking assets: Assets/Markings/<Name>.<ext> — extension determines type
All sign assets: Assets/Signs/<Region>/<Category>/Sign_<code>.svg
All extrusion assets: Assets/Extrusions/<Name>.rrext
All prop assets: Assets/Props/<Category>/<Name>.fbx
Use RelativeAssetPath(AssetPath="...") for RRHD construction (Name=Value syntax)
Default road center: SolidDoubleYellow.rrlms; default outer boundary: SolidSingleWhite.rrlms