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SimReady Foundation v2026.03.0 - Home SimReady Foundation v2026.03.0 - Home

SimReady Foundation v2026.03.0

SimReady Foundation v2026.03.0 - Home SimReady Foundation v2026.03.0 - Home

SimReady Foundation v2026.03.0

Table of Contents

  • Guides
    • Getting Started
    • Features
    • Feature Adapters
    • Profiles
    • SimReady Learning Workflow
  • Capabilities
    • Core
    • Visualization
    • Isaac Sim
    • Physics Bodies
    • Hierarchy
    • Non-Visual Sensors
    • Semantic Labels
    • Example
  • Features
    • Feature dependency graph
    • ID:000 - Core - Base
    • ID:001 - Minimal - Base
    • ID:002 - Posable Bodies - Base
    • ID:003 - RBD Physics - Base
    • ID:004 - Simulate Multi-Body Physics - Base
    • ID:005 - Simulate Grasp Physics - Base
    • ID:006 - Materials - Base
    • ID:007 - Non-Visual Materials - Base
    • ID:011 - Semantic Labels - Base
    • ID:100 - IsaacSim Composition
    • ID:021 - Core Robot
    • ID:022 - Driven Joints
    • ID:023 - Robot Materials - Isaac Sim
    • ID:024 - Base Articulation
  • Profiles
    • Prop Robotics Neutral
    • Prop Robotics Physx
    • Prop Robotics Isaac
    • Robot Body Neutral
    • Robot Body Runnable
    • Robot Body Isaac
  • Indexes
    • Capability Status
    • Requirements Index
  • Changelog
  • Capabilities
  • Physics Bodies
  • Physics Driven Joints
  • Requirements
  • robot-schema-links-exist

robot-schema-links-exist#

Code

DJ.009

Validator

CheckStage

Compatibility

Tags

Summary#

Robot schema links must exist and be properly connected to joints for kinematic chain definition.

Description#

Isaac Sim requires link definitions that are connected through joints to form a valid kinematic chain. Links must maintain correct parent-child relationships through joint connections.

Why is it required?#

  • To establish proper kinematic chain structure for robotics simulation

  • To ensure links are correctly associated with joints

  • To support robot model validation and physics simulation

Examples#

# Valid: Proper robot schema with links and joints
over "Robot" (
    prepend apiSchemas = ["IsaacRobotAPI"]
)
{
    string isaac:namespace (
        displayName = "Namespace"
        doc = "Namespace of the prim in Isaac Sim"
    )
    rel isaac:physics:robotLinks = [
        </link_0>,
        </link_1>,
        </link_2>,

    ]
}

How to comply#

  • Ensure robot assets have at least one prim with the LinkAPI applied, which is typically required for articulated robots.

Related requirements#

  • robot-schema-joint-exist

  • check-robot-relationships

For More Information#

  • Isaac Sim Link Schema Documentation

  • Robot Model Structure Guide

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robot-schema-joint-exist

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check-robot-relationships

On this page
  • Summary
  • Description
  • Why is it required?
  • Examples
  • How to comply
  • Related requirements
  • For More Information
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