Implementation:Google deepmind Mujoco mj printModel

Knowledge Sources	MuJoCo MuJoCo API Reference
Domains	Debugging, Model_IO
Last Updated	2026-02-15 06:00 GMT

Overview

Concrete tool for printing a human-readable text dump of all compiled model data provided by the MuJoCo C API.

Description

The mj_printModel function writes a formatted text representation of every field in the compiled mjModel to a file or stdout. It is a convenience wrapper around mj_printFormattedModel with default formatting. The output includes all model sizes, options, and data arrays.

Usage

Call to inspect model contents for debugging. Pass NULL filename to print to stdout.

Code Reference

Source Location

• Repository: mujoco
• File: src/engine/engine_print.c
• Lines: 1209-1211 (wrapper), 539-1205 (implementation)

Signature

void mj_printModel(const mjModel* m, const char* filename);

Import

#include <mujoco/mujoco.h>

I/O Contract

Inputs

Name	Type	Required	Description
m	const mjModel*	Yes	Compiled model to dump
filename	const char*	No	Output file path (NULL for stdout)

Outputs

Name	Type	Description
file/stdout	text	Formatted text dump of all model data

Usage Examples

#include <mujoco/mujoco.h>

mjModel* m = mj_loadXML("robot.xml", NULL, error, 1000);
if (m) {
    // Dump model to text file for inspection
    mj_printModel(m, "robot_dump.txt");

    // Or print to stdout
    mj_printModel(m, NULL);

    mj_deleteModel(m);
}

Related Pages

Implements Principle

• Principle:Google_deepmind_Mujoco_Model_Text_Dump