ROS IndexNo version for distro humble showing rolling. Known supported distros are highlighted in the buttons above.
Repository Summary
| Checkout URI | https://github.com/nobleo/ros2_fmt_logger.git |
| VCS Type | git |
| VCS Version | main |
| Last Updated | 2025-10-08 |
| Dev Status | DEVELOPED |
| Released | UNRELEASED |
| Contributing |
Help Wanted (-)
Good First Issues (-) Pull Requests to Review (-) |
Packages
| Name | Version |
|---|---|
| ros2_fmt_logger | 1.0.0 |
README
ros2_fmt_logger
A modern, ROS 2 logging library that provides fmt-style formatting as a replacement for RCLCPP logging macros.
Features
- Function calls instead of macros:
logger.info("Hello, {}!", name)instead ofRCLCPP_INFO(logger, "Hello, %s", name.c_str()) - Additional
.on_change()method for logging changes in values - chrono syntax for throttling:
logger.warn_throttle(1s, "Warning: {}", value)
Examples
Once-only logging
logger.info_once("This message will only appear once, no matter how many times called");
Throttled logging
using std::chrono_literals::operator""s;
logger.warn_throttle(1s, "This warning appears at most once per second: {}", value);
Change-based logging
// Log only when the value changes
logger.info_on_change(sensor_value, "Sensor reading changed to: {}", sensor_value);
// Log only when change exceeds threshold
logger.error_on_change(temperature, 5.0, "Temperature changed significantly: {:.1f}°C", temperature);
Quick Start
Include in the package.xml
<depend>ros2_fmt_logger</depend>
Configure c++20 and find_package
find_package(ros2_fmt_logger REQUIRED)
target_link_libraries(your_target ros2_fmt_logger::ros2_fmt_logger)
Include the header
#include <ros2_fmt_logger/ros2_fmt_logger.hpp>
Create a logger instance
// From an rclcpp::Logger
auto logger = ros2_fmt_logger::Logger(node->get_logger());
// With custom clock for throttling features
auto logger = ros2_fmt_logger::Logger(node->get_logger(), node->get_clock());
3. Use modern logging syntax
// Instead of: RCLCPP_INFO(logger, "Processing item %d with value %.2f", id, value);
logger.info("Processing item {} with value {:.2f}", id, value);
// Instead of: RCLCPP_ERROR(logger, "Failed to connect to %s:%d", host.c_str(), port);
logger.error("Failed to connect to {}:{}", host, port);
Format String Syntax
Uses the powerful fmt library format syntax:
// Basic formatting
logger.info("Hello, {}!", name);
// Positional arguments
logger.info("Processing {1} of {0} items", total, current);
// Format specifiers
logger.info("Progress: {:.1%}", progress); // Percentage with 1 decimal
logger.info("Value: {:08.2f}", value); // Zero-padded floating point
logger.info("Hex: {:#x}", number); // Hexadecimal with 0x prefix
// Container formatting (requires fmt/ranges.h)
logger.info("Values: {}", std::vector{1, 2, 3, 4});
See demo_ros2_fmt_logger.cpp for more examples.
File truncated at 100 lines see the full file
CONTRIBUTING
No version for distro jazzy showing rolling. Known supported distros are highlighted in the buttons above.
Repository Summary
| Checkout URI | https://github.com/nobleo/ros2_fmt_logger.git |
| VCS Type | git |
| VCS Version | main |
| Last Updated | 2025-10-08 |
| Dev Status | DEVELOPED |
| Released | UNRELEASED |
| Contributing |
Help Wanted (-)
Good First Issues (-) Pull Requests to Review (-) |
Packages
| Name | Version |
|---|---|
| ros2_fmt_logger | 1.0.0 |
README
ros2_fmt_logger
A modern, ROS 2 logging library that provides fmt-style formatting as a replacement for RCLCPP logging macros.
Features
- Function calls instead of macros:
logger.info("Hello, {}!", name)instead ofRCLCPP_INFO(logger, "Hello, %s", name.c_str()) - Additional
.on_change()method for logging changes in values - chrono syntax for throttling:
logger.warn_throttle(1s, "Warning: {}", value)
Examples
Once-only logging
logger.info_once("This message will only appear once, no matter how many times called");
Throttled logging
using std::chrono_literals::operator""s;
logger.warn_throttle(1s, "This warning appears at most once per second: {}", value);
Change-based logging
// Log only when the value changes
logger.info_on_change(sensor_value, "Sensor reading changed to: {}", sensor_value);
// Log only when change exceeds threshold
logger.error_on_change(temperature, 5.0, "Temperature changed significantly: {:.1f}°C", temperature);
Quick Start
Include in the package.xml
<depend>ros2_fmt_logger</depend>
Configure c++20 and find_package
find_package(ros2_fmt_logger REQUIRED)
target_link_libraries(your_target ros2_fmt_logger::ros2_fmt_logger)
Include the header
#include <ros2_fmt_logger/ros2_fmt_logger.hpp>
Create a logger instance
// From an rclcpp::Logger
auto logger = ros2_fmt_logger::Logger(node->get_logger());
// With custom clock for throttling features
auto logger = ros2_fmt_logger::Logger(node->get_logger(), node->get_clock());
3. Use modern logging syntax
// Instead of: RCLCPP_INFO(logger, "Processing item %d with value %.2f", id, value);
logger.info("Processing item {} with value {:.2f}", id, value);
// Instead of: RCLCPP_ERROR(logger, "Failed to connect to %s:%d", host.c_str(), port);
logger.error("Failed to connect to {}:{}", host, port);
Format String Syntax
Uses the powerful fmt library format syntax:
// Basic formatting
logger.info("Hello, {}!", name);
// Positional arguments
logger.info("Processing {1} of {0} items", total, current);
// Format specifiers
logger.info("Progress: {:.1%}", progress); // Percentage with 1 decimal
logger.info("Value: {:08.2f}", value); // Zero-padded floating point
logger.info("Hex: {:#x}", number); // Hexadecimal with 0x prefix
// Container formatting (requires fmt/ranges.h)
logger.info("Values: {}", std::vector{1, 2, 3, 4});
See demo_ros2_fmt_logger.cpp for more examples.
File truncated at 100 lines see the full file
CONTRIBUTING
No version for distro kilted showing rolling. Known supported distros are highlighted in the buttons above.
Repository Summary
| Checkout URI | https://github.com/nobleo/ros2_fmt_logger.git |
| VCS Type | git |
| VCS Version | main |
| Last Updated | 2025-10-08 |
| Dev Status | DEVELOPED |
| Released | UNRELEASED |
| Contributing |
Help Wanted (-)
Good First Issues (-) Pull Requests to Review (-) |
Packages
| Name | Version |
|---|---|
| ros2_fmt_logger | 1.0.0 |
README
ros2_fmt_logger
A modern, ROS 2 logging library that provides fmt-style formatting as a replacement for RCLCPP logging macros.
Features
- Function calls instead of macros:
logger.info("Hello, {}!", name)instead ofRCLCPP_INFO(logger, "Hello, %s", name.c_str()) - Additional
.on_change()method for logging changes in values - chrono syntax for throttling:
logger.warn_throttle(1s, "Warning: {}", value)
Examples
Once-only logging
logger.info_once("This message will only appear once, no matter how many times called");
Throttled logging
using std::chrono_literals::operator""s;
logger.warn_throttle(1s, "This warning appears at most once per second: {}", value);
Change-based logging
// Log only when the value changes
logger.info_on_change(sensor_value, "Sensor reading changed to: {}", sensor_value);
// Log only when change exceeds threshold
logger.error_on_change(temperature, 5.0, "Temperature changed significantly: {:.1f}°C", temperature);
Quick Start
Include in the package.xml
<depend>ros2_fmt_logger</depend>
Configure c++20 and find_package
find_package(ros2_fmt_logger REQUIRED)
target_link_libraries(your_target ros2_fmt_logger::ros2_fmt_logger)
Include the header
#include <ros2_fmt_logger/ros2_fmt_logger.hpp>
Create a logger instance
// From an rclcpp::Logger
auto logger = ros2_fmt_logger::Logger(node->get_logger());
// With custom clock for throttling features
auto logger = ros2_fmt_logger::Logger(node->get_logger(), node->get_clock());
3. Use modern logging syntax
// Instead of: RCLCPP_INFO(logger, "Processing item %d with value %.2f", id, value);
logger.info("Processing item {} with value {:.2f}", id, value);
// Instead of: RCLCPP_ERROR(logger, "Failed to connect to %s:%d", host.c_str(), port);
logger.error("Failed to connect to {}:{}", host, port);
Format String Syntax
Uses the powerful fmt library format syntax:
// Basic formatting
logger.info("Hello, {}!", name);
// Positional arguments
logger.info("Processing {1} of {0} items", total, current);
// Format specifiers
logger.info("Progress: {:.1%}", progress); // Percentage with 1 decimal
logger.info("Value: {:08.2f}", value); // Zero-padded floating point
logger.info("Hex: {:#x}", number); // Hexadecimal with 0x prefix
// Container formatting (requires fmt/ranges.h)
logger.info("Values: {}", std::vector{1, 2, 3, 4});
See demo_ros2_fmt_logger.cpp for more examples.
File truncated at 100 lines see the full file
CONTRIBUTING
Repository Summary
| Checkout URI | https://github.com/nobleo/ros2_fmt_logger.git |
| VCS Type | git |
| VCS Version | main |
| Last Updated | 2025-10-08 |
| Dev Status | DEVELOPED |
| Released | UNRELEASED |
| Contributing |
Help Wanted (-)
Good First Issues (-) Pull Requests to Review (-) |
Packages
| Name | Version |
|---|---|
| ros2_fmt_logger | 1.0.0 |
README
ros2_fmt_logger
A modern, ROS 2 logging library that provides fmt-style formatting as a replacement for RCLCPP logging macros.
Features
- Function calls instead of macros:
logger.info("Hello, {}!", name)instead ofRCLCPP_INFO(logger, "Hello, %s", name.c_str()) - Additional
.on_change()method for logging changes in values - chrono syntax for throttling:
logger.warn_throttle(1s, "Warning: {}", value)
Examples
Once-only logging
logger.info_once("This message will only appear once, no matter how many times called");
Throttled logging
using std::chrono_literals::operator""s;
logger.warn_throttle(1s, "This warning appears at most once per second: {}", value);
Change-based logging
// Log only when the value changes
logger.info_on_change(sensor_value, "Sensor reading changed to: {}", sensor_value);
// Log only when change exceeds threshold
logger.error_on_change(temperature, 5.0, "Temperature changed significantly: {:.1f}°C", temperature);
Quick Start
Include in the package.xml
<depend>ros2_fmt_logger</depend>
Configure c++20 and find_package
find_package(ros2_fmt_logger REQUIRED)
target_link_libraries(your_target ros2_fmt_logger::ros2_fmt_logger)
Include the header
#include <ros2_fmt_logger/ros2_fmt_logger.hpp>
Create a logger instance
// From an rclcpp::Logger
auto logger = ros2_fmt_logger::Logger(node->get_logger());
// With custom clock for throttling features
auto logger = ros2_fmt_logger::Logger(node->get_logger(), node->get_clock());
3. Use modern logging syntax
// Instead of: RCLCPP_INFO(logger, "Processing item %d with value %.2f", id, value);
logger.info("Processing item {} with value {:.2f}", id, value);
// Instead of: RCLCPP_ERROR(logger, "Failed to connect to %s:%d", host.c_str(), port);
logger.error("Failed to connect to {}:{}", host, port);
Format String Syntax
Uses the powerful fmt library format syntax:
// Basic formatting
logger.info("Hello, {}!", name);
// Positional arguments
logger.info("Processing {1} of {0} items", total, current);
// Format specifiers
logger.info("Progress: {:.1%}", progress); // Percentage with 1 decimal
logger.info("Value: {:08.2f}", value); // Zero-padded floating point
logger.info("Hex: {:#x}", number); // Hexadecimal with 0x prefix
// Container formatting (requires fmt/ranges.h)
logger.info("Values: {}", std::vector{1, 2, 3, 4});
See demo_ros2_fmt_logger.cpp for more examples.
File truncated at 100 lines see the full file
CONTRIBUTING
No version for distro ardent showing rolling. Known supported distros are highlighted in the buttons above.
Repository Summary
| Checkout URI | https://github.com/nobleo/ros2_fmt_logger.git |
| VCS Type | git |
| VCS Version | main |
| Last Updated | 2025-10-08 |
| Dev Status | DEVELOPED |
| Released | UNRELEASED |
| Contributing |
Help Wanted (-)
Good First Issues (-) Pull Requests to Review (-) |
Packages
| Name | Version |
|---|---|
| ros2_fmt_logger | 1.0.0 |
README
ros2_fmt_logger
A modern, ROS 2 logging library that provides fmt-style formatting as a replacement for RCLCPP logging macros.
Features
- Function calls instead of macros:
logger.info("Hello, {}!", name)instead ofRCLCPP_INFO(logger, "Hello, %s", name.c_str()) - Additional
.on_change()method for logging changes in values - chrono syntax for throttling:
logger.warn_throttle(1s, "Warning: {}", value)
Examples
Once-only logging
logger.info_once("This message will only appear once, no matter how many times called");
Throttled logging
using std::chrono_literals::operator""s;
logger.warn_throttle(1s, "This warning appears at most once per second: {}", value);
Change-based logging
// Log only when the value changes
logger.info_on_change(sensor_value, "Sensor reading changed to: {}", sensor_value);
// Log only when change exceeds threshold
logger.error_on_change(temperature, 5.0, "Temperature changed significantly: {:.1f}°C", temperature);
Quick Start
Include in the package.xml
<depend>ros2_fmt_logger</depend>
Configure c++20 and find_package
find_package(ros2_fmt_logger REQUIRED)
target_link_libraries(your_target ros2_fmt_logger::ros2_fmt_logger)
Include the header
#include <ros2_fmt_logger/ros2_fmt_logger.hpp>
Create a logger instance
// From an rclcpp::Logger
auto logger = ros2_fmt_logger::Logger(node->get_logger());
// With custom clock for throttling features
auto logger = ros2_fmt_logger::Logger(node->get_logger(), node->get_clock());
3. Use modern logging syntax
// Instead of: RCLCPP_INFO(logger, "Processing item %d with value %.2f", id, value);
logger.info("Processing item {} with value {:.2f}", id, value);
// Instead of: RCLCPP_ERROR(logger, "Failed to connect to %s:%d", host.c_str(), port);
logger.error("Failed to connect to {}:{}", host, port);
Format String Syntax
Uses the powerful fmt library format syntax:
// Basic formatting
logger.info("Hello, {}!", name);
// Positional arguments
logger.info("Processing {1} of {0} items", total, current);
// Format specifiers
logger.info("Progress: {:.1%}", progress); // Percentage with 1 decimal
logger.info("Value: {:08.2f}", value); // Zero-padded floating point
logger.info("Hex: {:#x}", number); // Hexadecimal with 0x prefix
// Container formatting (requires fmt/ranges.h)
logger.info("Values: {}", std::vector{1, 2, 3, 4});
See demo_ros2_fmt_logger.cpp for more examples.
File truncated at 100 lines see the full file
CONTRIBUTING
No version for distro bouncy showing rolling. Known supported distros are highlighted in the buttons above.
Repository Summary
| Checkout URI | https://github.com/nobleo/ros2_fmt_logger.git |
| VCS Type | git |
| VCS Version | main |
| Last Updated | 2025-10-08 |
| Dev Status | DEVELOPED |
| Released | UNRELEASED |
| Contributing |
Help Wanted (-)
Good First Issues (-) Pull Requests to Review (-) |
Packages
| Name | Version |
|---|---|
| ros2_fmt_logger | 1.0.0 |
README
ros2_fmt_logger
A modern, ROS 2 logging library that provides fmt-style formatting as a replacement for RCLCPP logging macros.
Features
- Function calls instead of macros:
logger.info("Hello, {}!", name)instead ofRCLCPP_INFO(logger, "Hello, %s", name.c_str()) - Additional
.on_change()method for logging changes in values - chrono syntax for throttling:
logger.warn_throttle(1s, "Warning: {}", value)
Examples
Once-only logging
logger.info_once("This message will only appear once, no matter how many times called");
Throttled logging
using std::chrono_literals::operator""s;
logger.warn_throttle(1s, "This warning appears at most once per second: {}", value);
Change-based logging
// Log only when the value changes
logger.info_on_change(sensor_value, "Sensor reading changed to: {}", sensor_value);
// Log only when change exceeds threshold
logger.error_on_change(temperature, 5.0, "Temperature changed significantly: {:.1f}°C", temperature);
Quick Start
Include in the package.xml
<depend>ros2_fmt_logger</depend>
Configure c++20 and find_package
find_package(ros2_fmt_logger REQUIRED)
target_link_libraries(your_target ros2_fmt_logger::ros2_fmt_logger)
Include the header
#include <ros2_fmt_logger/ros2_fmt_logger.hpp>
Create a logger instance
// From an rclcpp::Logger
auto logger = ros2_fmt_logger::Logger(node->get_logger());
// With custom clock for throttling features
auto logger = ros2_fmt_logger::Logger(node->get_logger(), node->get_clock());
3. Use modern logging syntax
// Instead of: RCLCPP_INFO(logger, "Processing item %d with value %.2f", id, value);
logger.info("Processing item {} with value {:.2f}", id, value);
// Instead of: RCLCPP_ERROR(logger, "Failed to connect to %s:%d", host.c_str(), port);
logger.error("Failed to connect to {}:{}", host, port);
Format String Syntax
Uses the powerful fmt library format syntax:
// Basic formatting
logger.info("Hello, {}!", name);
// Positional arguments
logger.info("Processing {1} of {0} items", total, current);
// Format specifiers
logger.info("Progress: {:.1%}", progress); // Percentage with 1 decimal
logger.info("Value: {:08.2f}", value); // Zero-padded floating point
logger.info("Hex: {:#x}", number); // Hexadecimal with 0x prefix
// Container formatting (requires fmt/ranges.h)
logger.info("Values: {}", std::vector{1, 2, 3, 4});
See demo_ros2_fmt_logger.cpp for more examples.
File truncated at 100 lines see the full file
CONTRIBUTING
No version for distro crystal showing rolling. Known supported distros are highlighted in the buttons above.
Repository Summary
| Checkout URI | https://github.com/nobleo/ros2_fmt_logger.git |
| VCS Type | git |
| VCS Version | main |
| Last Updated | 2025-10-08 |
| Dev Status | DEVELOPED |
| Released | UNRELEASED |
| Contributing |
Help Wanted (-)
Good First Issues (-) Pull Requests to Review (-) |
Packages
| Name | Version |
|---|---|
| ros2_fmt_logger | 1.0.0 |
README
ros2_fmt_logger
A modern, ROS 2 logging library that provides fmt-style formatting as a replacement for RCLCPP logging macros.
Features
- Function calls instead of macros:
logger.info("Hello, {}!", name)instead ofRCLCPP_INFO(logger, "Hello, %s", name.c_str()) - Additional
.on_change()method for logging changes in values - chrono syntax for throttling:
logger.warn_throttle(1s, "Warning: {}", value)
Examples
Once-only logging
logger.info_once("This message will only appear once, no matter how many times called");
Throttled logging
using std::chrono_literals::operator""s;
logger.warn_throttle(1s, "This warning appears at most once per second: {}", value);
Change-based logging
// Log only when the value changes
logger.info_on_change(sensor_value, "Sensor reading changed to: {}", sensor_value);
// Log only when change exceeds threshold
logger.error_on_change(temperature, 5.0, "Temperature changed significantly: {:.1f}°C", temperature);
Quick Start
Include in the package.xml
<depend>ros2_fmt_logger</depend>
Configure c++20 and find_package
find_package(ros2_fmt_logger REQUIRED)
target_link_libraries(your_target ros2_fmt_logger::ros2_fmt_logger)
Include the header
#include <ros2_fmt_logger/ros2_fmt_logger.hpp>
Create a logger instance
// From an rclcpp::Logger
auto logger = ros2_fmt_logger::Logger(node->get_logger());
// With custom clock for throttling features
auto logger = ros2_fmt_logger::Logger(node->get_logger(), node->get_clock());
3. Use modern logging syntax
// Instead of: RCLCPP_INFO(logger, "Processing item %d with value %.2f", id, value);
logger.info("Processing item {} with value {:.2f}", id, value);
// Instead of: RCLCPP_ERROR(logger, "Failed to connect to %s:%d", host.c_str(), port);
logger.error("Failed to connect to {}:{}", host, port);
Format String Syntax
Uses the powerful fmt library format syntax:
// Basic formatting
logger.info("Hello, {}!", name);
// Positional arguments
logger.info("Processing {1} of {0} items", total, current);
// Format specifiers
logger.info("Progress: {:.1%}", progress); // Percentage with 1 decimal
logger.info("Value: {:08.2f}", value); // Zero-padded floating point
logger.info("Hex: {:#x}", number); // Hexadecimal with 0x prefix
// Container formatting (requires fmt/ranges.h)
logger.info("Values: {}", std::vector{1, 2, 3, 4});
See demo_ros2_fmt_logger.cpp for more examples.
File truncated at 100 lines see the full file
CONTRIBUTING
No version for distro eloquent showing rolling. Known supported distros are highlighted in the buttons above.
Repository Summary
| Checkout URI | https://github.com/nobleo/ros2_fmt_logger.git |
| VCS Type | git |
| VCS Version | main |
| Last Updated | 2025-10-08 |
| Dev Status | DEVELOPED |
| Released | UNRELEASED |
| Contributing |
Help Wanted (-)
Good First Issues (-) Pull Requests to Review (-) |
Packages
| Name | Version |
|---|---|
| ros2_fmt_logger | 1.0.0 |
README
ros2_fmt_logger
A modern, ROS 2 logging library that provides fmt-style formatting as a replacement for RCLCPP logging macros.
Features
- Function calls instead of macros:
logger.info("Hello, {}!", name)instead ofRCLCPP_INFO(logger, "Hello, %s", name.c_str()) - Additional
.on_change()method for logging changes in values - chrono syntax for throttling:
logger.warn_throttle(1s, "Warning: {}", value)
Examples
Once-only logging
logger.info_once("This message will only appear once, no matter how many times called");
Throttled logging
using std::chrono_literals::operator""s;
logger.warn_throttle(1s, "This warning appears at most once per second: {}", value);
Change-based logging
// Log only when the value changes
logger.info_on_change(sensor_value, "Sensor reading changed to: {}", sensor_value);
// Log only when change exceeds threshold
logger.error_on_change(temperature, 5.0, "Temperature changed significantly: {:.1f}°C", temperature);
Quick Start
Include in the package.xml
<depend>ros2_fmt_logger</depend>
Configure c++20 and find_package
find_package(ros2_fmt_logger REQUIRED)
target_link_libraries(your_target ros2_fmt_logger::ros2_fmt_logger)
Include the header
#include <ros2_fmt_logger/ros2_fmt_logger.hpp>
Create a logger instance
// From an rclcpp::Logger
auto logger = ros2_fmt_logger::Logger(node->get_logger());
// With custom clock for throttling features
auto logger = ros2_fmt_logger::Logger(node->get_logger(), node->get_clock());
3. Use modern logging syntax
// Instead of: RCLCPP_INFO(logger, "Processing item %d with value %.2f", id, value);
logger.info("Processing item {} with value {:.2f}", id, value);
// Instead of: RCLCPP_ERROR(logger, "Failed to connect to %s:%d", host.c_str(), port);
logger.error("Failed to connect to {}:{}", host, port);
Format String Syntax
Uses the powerful fmt library format syntax:
// Basic formatting
logger.info("Hello, {}!", name);
// Positional arguments
logger.info("Processing {1} of {0} items", total, current);
// Format specifiers
logger.info("Progress: {:.1%}", progress); // Percentage with 1 decimal
logger.info("Value: {:08.2f}", value); // Zero-padded floating point
logger.info("Hex: {:#x}", number); // Hexadecimal with 0x prefix
// Container formatting (requires fmt/ranges.h)
logger.info("Values: {}", std::vector{1, 2, 3, 4});
See demo_ros2_fmt_logger.cpp for more examples.
File truncated at 100 lines see the full file
CONTRIBUTING
No version for distro dashing showing rolling. Known supported distros are highlighted in the buttons above.
Repository Summary
| Checkout URI | https://github.com/nobleo/ros2_fmt_logger.git |
| VCS Type | git |
| VCS Version | main |
| Last Updated | 2025-10-08 |
| Dev Status | DEVELOPED |
| Released | UNRELEASED |
| Contributing |
Help Wanted (-)
Good First Issues (-) Pull Requests to Review (-) |
Packages
| Name | Version |
|---|---|
| ros2_fmt_logger | 1.0.0 |
README
ros2_fmt_logger
A modern, ROS 2 logging library that provides fmt-style formatting as a replacement for RCLCPP logging macros.
Features
- Function calls instead of macros:
logger.info("Hello, {}!", name)instead ofRCLCPP_INFO(logger, "Hello, %s", name.c_str()) - Additional
.on_change()method for logging changes in values - chrono syntax for throttling:
logger.warn_throttle(1s, "Warning: {}", value)
Examples
Once-only logging
logger.info_once("This message will only appear once, no matter how many times called");
Throttled logging
using std::chrono_literals::operator""s;
logger.warn_throttle(1s, "This warning appears at most once per second: {}", value);
Change-based logging
// Log only when the value changes
logger.info_on_change(sensor_value, "Sensor reading changed to: {}", sensor_value);
// Log only when change exceeds threshold
logger.error_on_change(temperature, 5.0, "Temperature changed significantly: {:.1f}°C", temperature);
Quick Start
Include in the package.xml
<depend>ros2_fmt_logger</depend>
Configure c++20 and find_package
find_package(ros2_fmt_logger REQUIRED)
target_link_libraries(your_target ros2_fmt_logger::ros2_fmt_logger)
Include the header
#include <ros2_fmt_logger/ros2_fmt_logger.hpp>
Create a logger instance
// From an rclcpp::Logger
auto logger = ros2_fmt_logger::Logger(node->get_logger());
// With custom clock for throttling features
auto logger = ros2_fmt_logger::Logger(node->get_logger(), node->get_clock());
3. Use modern logging syntax
// Instead of: RCLCPP_INFO(logger, "Processing item %d with value %.2f", id, value);
logger.info("Processing item {} with value {:.2f}", id, value);
// Instead of: RCLCPP_ERROR(logger, "Failed to connect to %s:%d", host.c_str(), port);
logger.error("Failed to connect to {}:{}", host, port);
Format String Syntax
Uses the powerful fmt library format syntax:
// Basic formatting
logger.info("Hello, {}!", name);
// Positional arguments
logger.info("Processing {1} of {0} items", total, current);
// Format specifiers
logger.info("Progress: {:.1%}", progress); // Percentage with 1 decimal
logger.info("Value: {:08.2f}", value); // Zero-padded floating point
logger.info("Hex: {:#x}", number); // Hexadecimal with 0x prefix
// Container formatting (requires fmt/ranges.h)
logger.info("Values: {}", std::vector{1, 2, 3, 4});
See demo_ros2_fmt_logger.cpp for more examples.
File truncated at 100 lines see the full file
CONTRIBUTING
No version for distro galactic showing rolling. Known supported distros are highlighted in the buttons above.
Repository Summary
| Checkout URI | https://github.com/nobleo/ros2_fmt_logger.git |
| VCS Type | git |
| VCS Version | main |
| Last Updated | 2025-10-08 |
| Dev Status | DEVELOPED |
| Released | UNRELEASED |
| Contributing |
Help Wanted (-)
Good First Issues (-) Pull Requests to Review (-) |
Packages
| Name | Version |
|---|---|
| ros2_fmt_logger | 1.0.0 |
README
ros2_fmt_logger
A modern, ROS 2 logging library that provides fmt-style formatting as a replacement for RCLCPP logging macros.
Features
- Function calls instead of macros:
logger.info("Hello, {}!", name)instead ofRCLCPP_INFO(logger, "Hello, %s", name.c_str()) - Additional
.on_change()method for logging changes in values - chrono syntax for throttling:
logger.warn_throttle(1s, "Warning: {}", value)
Examples
Once-only logging
logger.info_once("This message will only appear once, no matter how many times called");
Throttled logging
using std::chrono_literals::operator""s;
logger.warn_throttle(1s, "This warning appears at most once per second: {}", value);
Change-based logging
// Log only when the value changes
logger.info_on_change(sensor_value, "Sensor reading changed to: {}", sensor_value);
// Log only when change exceeds threshold
logger.error_on_change(temperature, 5.0, "Temperature changed significantly: {:.1f}°C", temperature);
Quick Start
Include in the package.xml
<depend>ros2_fmt_logger</depend>
Configure c++20 and find_package
find_package(ros2_fmt_logger REQUIRED)
target_link_libraries(your_target ros2_fmt_logger::ros2_fmt_logger)
Include the header
#include <ros2_fmt_logger/ros2_fmt_logger.hpp>
Create a logger instance
// From an rclcpp::Logger
auto logger = ros2_fmt_logger::Logger(node->get_logger());
// With custom clock for throttling features
auto logger = ros2_fmt_logger::Logger(node->get_logger(), node->get_clock());
3. Use modern logging syntax
// Instead of: RCLCPP_INFO(logger, "Processing item %d with value %.2f", id, value);
logger.info("Processing item {} with value {:.2f}", id, value);
// Instead of: RCLCPP_ERROR(logger, "Failed to connect to %s:%d", host.c_str(), port);
logger.error("Failed to connect to {}:{}", host, port);
Format String Syntax
Uses the powerful fmt library format syntax:
// Basic formatting
logger.info("Hello, {}!", name);
// Positional arguments
logger.info("Processing {1} of {0} items", total, current);
// Format specifiers
logger.info("Progress: {:.1%}", progress); // Percentage with 1 decimal
logger.info("Value: {:08.2f}", value); // Zero-padded floating point
logger.info("Hex: {:#x}", number); // Hexadecimal with 0x prefix
// Container formatting (requires fmt/ranges.h)
logger.info("Values: {}", std::vector{1, 2, 3, 4});
See demo_ros2_fmt_logger.cpp for more examples.
File truncated at 100 lines see the full file
CONTRIBUTING
No version for distro foxy showing rolling. Known supported distros are highlighted in the buttons above.
Repository Summary
| Checkout URI | https://github.com/nobleo/ros2_fmt_logger.git |
| VCS Type | git |
| VCS Version | main |
| Last Updated | 2025-10-08 |
| Dev Status | DEVELOPED |
| Released | UNRELEASED |
| Contributing |
Help Wanted (-)
Good First Issues (-) Pull Requests to Review (-) |
Packages
| Name | Version |
|---|---|
| ros2_fmt_logger | 1.0.0 |
README
ros2_fmt_logger
A modern, ROS 2 logging library that provides fmt-style formatting as a replacement for RCLCPP logging macros.
Features
- Function calls instead of macros:
logger.info("Hello, {}!", name)instead ofRCLCPP_INFO(logger, "Hello, %s", name.c_str()) - Additional
.on_change()method for logging changes in values - chrono syntax for throttling:
logger.warn_throttle(1s, "Warning: {}", value)
Examples
Once-only logging
logger.info_once("This message will only appear once, no matter how many times called");
Throttled logging
using std::chrono_literals::operator""s;
logger.warn_throttle(1s, "This warning appears at most once per second: {}", value);
Change-based logging
// Log only when the value changes
logger.info_on_change(sensor_value, "Sensor reading changed to: {}", sensor_value);
// Log only when change exceeds threshold
logger.error_on_change(temperature, 5.0, "Temperature changed significantly: {:.1f}°C", temperature);
Quick Start
Include in the package.xml
<depend>ros2_fmt_logger</depend>
Configure c++20 and find_package
find_package(ros2_fmt_logger REQUIRED)
target_link_libraries(your_target ros2_fmt_logger::ros2_fmt_logger)
Include the header
#include <ros2_fmt_logger/ros2_fmt_logger.hpp>
Create a logger instance
// From an rclcpp::Logger
auto logger = ros2_fmt_logger::Logger(node->get_logger());
// With custom clock for throttling features
auto logger = ros2_fmt_logger::Logger(node->get_logger(), node->get_clock());
3. Use modern logging syntax
// Instead of: RCLCPP_INFO(logger, "Processing item %d with value %.2f", id, value);
logger.info("Processing item {} with value {:.2f}", id, value);
// Instead of: RCLCPP_ERROR(logger, "Failed to connect to %s:%d", host.c_str(), port);
logger.error("Failed to connect to {}:{}", host, port);
Format String Syntax
Uses the powerful fmt library format syntax:
// Basic formatting
logger.info("Hello, {}!", name);
// Positional arguments
logger.info("Processing {1} of {0} items", total, current);
// Format specifiers
logger.info("Progress: {:.1%}", progress); // Percentage with 1 decimal
logger.info("Value: {:08.2f}", value); // Zero-padded floating point
logger.info("Hex: {:#x}", number); // Hexadecimal with 0x prefix
// Container formatting (requires fmt/ranges.h)
logger.info("Values: {}", std::vector{1, 2, 3, 4});
See demo_ros2_fmt_logger.cpp for more examples.
File truncated at 100 lines see the full file
CONTRIBUTING
No version for distro iron showing rolling. Known supported distros are highlighted in the buttons above.
Repository Summary
| Checkout URI | https://github.com/nobleo/ros2_fmt_logger.git |
| VCS Type | git |
| VCS Version | main |
| Last Updated | 2025-10-08 |
| Dev Status | DEVELOPED |
| Released | UNRELEASED |
| Contributing |
Help Wanted (-)
Good First Issues (-) Pull Requests to Review (-) |
Packages
| Name | Version |
|---|---|
| ros2_fmt_logger | 1.0.0 |
README
ros2_fmt_logger
A modern, ROS 2 logging library that provides fmt-style formatting as a replacement for RCLCPP logging macros.
Features
- Function calls instead of macros:
logger.info("Hello, {}!", name)instead ofRCLCPP_INFO(logger, "Hello, %s", name.c_str()) - Additional
.on_change()method for logging changes in values - chrono syntax for throttling:
logger.warn_throttle(1s, "Warning: {}", value)
Examples
Once-only logging
logger.info_once("This message will only appear once, no matter how many times called");
Throttled logging
using std::chrono_literals::operator""s;
logger.warn_throttle(1s, "This warning appears at most once per second: {}", value);
Change-based logging
// Log only when the value changes
logger.info_on_change(sensor_value, "Sensor reading changed to: {}", sensor_value);
// Log only when change exceeds threshold
logger.error_on_change(temperature, 5.0, "Temperature changed significantly: {:.1f}°C", temperature);
Quick Start
Include in the package.xml
<depend>ros2_fmt_logger</depend>
Configure c++20 and find_package
find_package(ros2_fmt_logger REQUIRED)
target_link_libraries(your_target ros2_fmt_logger::ros2_fmt_logger)
Include the header
#include <ros2_fmt_logger/ros2_fmt_logger.hpp>
Create a logger instance
// From an rclcpp::Logger
auto logger = ros2_fmt_logger::Logger(node->get_logger());
// With custom clock for throttling features
auto logger = ros2_fmt_logger::Logger(node->get_logger(), node->get_clock());
3. Use modern logging syntax
// Instead of: RCLCPP_INFO(logger, "Processing item %d with value %.2f", id, value);
logger.info("Processing item {} with value {:.2f}", id, value);
// Instead of: RCLCPP_ERROR(logger, "Failed to connect to %s:%d", host.c_str(), port);
logger.error("Failed to connect to {}:{}", host, port);
Format String Syntax
Uses the powerful fmt library format syntax:
// Basic formatting
logger.info("Hello, {}!", name);
// Positional arguments
logger.info("Processing {1} of {0} items", total, current);
// Format specifiers
logger.info("Progress: {:.1%}", progress); // Percentage with 1 decimal
logger.info("Value: {:08.2f}", value); // Zero-padded floating point
logger.info("Hex: {:#x}", number); // Hexadecimal with 0x prefix
// Container formatting (requires fmt/ranges.h)
logger.info("Values: {}", std::vector{1, 2, 3, 4});
See demo_ros2_fmt_logger.cpp for more examples.
File truncated at 100 lines see the full file
CONTRIBUTING
No version for distro lunar showing rolling. Known supported distros are highlighted in the buttons above.
Repository Summary
| Checkout URI | https://github.com/nobleo/ros2_fmt_logger.git |
| VCS Type | git |
| VCS Version | main |
| Last Updated | 2025-10-08 |
| Dev Status | DEVELOPED |
| Released | UNRELEASED |
| Contributing |
Help Wanted (-)
Good First Issues (-) Pull Requests to Review (-) |
Packages
| Name | Version |
|---|---|
| ros2_fmt_logger | 1.0.0 |
README
ros2_fmt_logger
A modern, ROS 2 logging library that provides fmt-style formatting as a replacement for RCLCPP logging macros.
Features
- Function calls instead of macros:
logger.info("Hello, {}!", name)instead ofRCLCPP_INFO(logger, "Hello, %s", name.c_str()) - Additional
.on_change()method for logging changes in values - chrono syntax for throttling:
logger.warn_throttle(1s, "Warning: {}", value)
Examples
Once-only logging
logger.info_once("This message will only appear once, no matter how many times called");
Throttled logging
using std::chrono_literals::operator""s;
logger.warn_throttle(1s, "This warning appears at most once per second: {}", value);
Change-based logging
// Log only when the value changes
logger.info_on_change(sensor_value, "Sensor reading changed to: {}", sensor_value);
// Log only when change exceeds threshold
logger.error_on_change(temperature, 5.0, "Temperature changed significantly: {:.1f}°C", temperature);
Quick Start
Include in the package.xml
<depend>ros2_fmt_logger</depend>
Configure c++20 and find_package
find_package(ros2_fmt_logger REQUIRED)
target_link_libraries(your_target ros2_fmt_logger::ros2_fmt_logger)
Include the header
#include <ros2_fmt_logger/ros2_fmt_logger.hpp>
Create a logger instance
// From an rclcpp::Logger
auto logger = ros2_fmt_logger::Logger(node->get_logger());
// With custom clock for throttling features
auto logger = ros2_fmt_logger::Logger(node->get_logger(), node->get_clock());
3. Use modern logging syntax
// Instead of: RCLCPP_INFO(logger, "Processing item %d with value %.2f", id, value);
logger.info("Processing item {} with value {:.2f}", id, value);
// Instead of: RCLCPP_ERROR(logger, "Failed to connect to %s:%d", host.c_str(), port);
logger.error("Failed to connect to {}:{}", host, port);
Format String Syntax
Uses the powerful fmt library format syntax:
// Basic formatting
logger.info("Hello, {}!", name);
// Positional arguments
logger.info("Processing {1} of {0} items", total, current);
// Format specifiers
logger.info("Progress: {:.1%}", progress); // Percentage with 1 decimal
logger.info("Value: {:08.2f}", value); // Zero-padded floating point
logger.info("Hex: {:#x}", number); // Hexadecimal with 0x prefix
// Container formatting (requires fmt/ranges.h)
logger.info("Values: {}", std::vector{1, 2, 3, 4});
See demo_ros2_fmt_logger.cpp for more examples.
File truncated at 100 lines see the full file
CONTRIBUTING
No version for distro jade showing rolling. Known supported distros are highlighted in the buttons above.
Repository Summary
| Checkout URI | https://github.com/nobleo/ros2_fmt_logger.git |
| VCS Type | git |
| VCS Version | main |
| Last Updated | 2025-10-08 |
| Dev Status | DEVELOPED |
| Released | UNRELEASED |
| Contributing |
Help Wanted (-)
Good First Issues (-) Pull Requests to Review (-) |
Packages
| Name | Version |
|---|---|
| ros2_fmt_logger | 1.0.0 |
README
ros2_fmt_logger
A modern, ROS 2 logging library that provides fmt-style formatting as a replacement for RCLCPP logging macros.
Features
- Function calls instead of macros:
logger.info("Hello, {}!", name)instead ofRCLCPP_INFO(logger, "Hello, %s", name.c_str()) - Additional
.on_change()method for logging changes in values - chrono syntax for throttling:
logger.warn_throttle(1s, "Warning: {}", value)
Examples
Once-only logging
logger.info_once("This message will only appear once, no matter how many times called");
Throttled logging
using std::chrono_literals::operator""s;
logger.warn_throttle(1s, "This warning appears at most once per second: {}", value);
Change-based logging
// Log only when the value changes
logger.info_on_change(sensor_value, "Sensor reading changed to: {}", sensor_value);
// Log only when change exceeds threshold
logger.error_on_change(temperature, 5.0, "Temperature changed significantly: {:.1f}°C", temperature);
Quick Start
Include in the package.xml
<depend>ros2_fmt_logger</depend>
Configure c++20 and find_package
find_package(ros2_fmt_logger REQUIRED)
target_link_libraries(your_target ros2_fmt_logger::ros2_fmt_logger)
Include the header
#include <ros2_fmt_logger/ros2_fmt_logger.hpp>
Create a logger instance
// From an rclcpp::Logger
auto logger = ros2_fmt_logger::Logger(node->get_logger());
// With custom clock for throttling features
auto logger = ros2_fmt_logger::Logger(node->get_logger(), node->get_clock());
3. Use modern logging syntax
// Instead of: RCLCPP_INFO(logger, "Processing item %d with value %.2f", id, value);
logger.info("Processing item {} with value {:.2f}", id, value);
// Instead of: RCLCPP_ERROR(logger, "Failed to connect to %s:%d", host.c_str(), port);
logger.error("Failed to connect to {}:{}", host, port);
Format String Syntax
Uses the powerful fmt library format syntax:
// Basic formatting
logger.info("Hello, {}!", name);
// Positional arguments
logger.info("Processing {1} of {0} items", total, current);
// Format specifiers
logger.info("Progress: {:.1%}", progress); // Percentage with 1 decimal
logger.info("Value: {:08.2f}", value); // Zero-padded floating point
logger.info("Hex: {:#x}", number); // Hexadecimal with 0x prefix
// Container formatting (requires fmt/ranges.h)
logger.info("Values: {}", std::vector{1, 2, 3, 4});
See demo_ros2_fmt_logger.cpp for more examples.
File truncated at 100 lines see the full file
CONTRIBUTING
No version for distro indigo showing rolling. Known supported distros are highlighted in the buttons above.
Repository Summary
| Checkout URI | https://github.com/nobleo/ros2_fmt_logger.git |
| VCS Type | git |
| VCS Version | main |
| Last Updated | 2025-10-08 |
| Dev Status | DEVELOPED |
| Released | UNRELEASED |
| Contributing |
Help Wanted (-)
Good First Issues (-) Pull Requests to Review (-) |
Packages
| Name | Version |
|---|---|
| ros2_fmt_logger | 1.0.0 |
README
ros2_fmt_logger
A modern, ROS 2 logging library that provides fmt-style formatting as a replacement for RCLCPP logging macros.
Features
- Function calls instead of macros:
logger.info("Hello, {}!", name)instead ofRCLCPP_INFO(logger, "Hello, %s", name.c_str()) - Additional
.on_change()method for logging changes in values - chrono syntax for throttling:
logger.warn_throttle(1s, "Warning: {}", value)
Examples
Once-only logging
logger.info_once("This message will only appear once, no matter how many times called");
Throttled logging
using std::chrono_literals::operator""s;
logger.warn_throttle(1s, "This warning appears at most once per second: {}", value);
Change-based logging
// Log only when the value changes
logger.info_on_change(sensor_value, "Sensor reading changed to: {}", sensor_value);
// Log only when change exceeds threshold
logger.error_on_change(temperature, 5.0, "Temperature changed significantly: {:.1f}°C", temperature);
Quick Start
Include in the package.xml
<depend>ros2_fmt_logger</depend>
Configure c++20 and find_package
find_package(ros2_fmt_logger REQUIRED)
target_link_libraries(your_target ros2_fmt_logger::ros2_fmt_logger)
Include the header
#include <ros2_fmt_logger/ros2_fmt_logger.hpp>
Create a logger instance
// From an rclcpp::Logger
auto logger = ros2_fmt_logger::Logger(node->get_logger());
// With custom clock for throttling features
auto logger = ros2_fmt_logger::Logger(node->get_logger(), node->get_clock());
3. Use modern logging syntax
// Instead of: RCLCPP_INFO(logger, "Processing item %d with value %.2f", id, value);
logger.info("Processing item {} with value {:.2f}", id, value);
// Instead of: RCLCPP_ERROR(logger, "Failed to connect to %s:%d", host.c_str(), port);
logger.error("Failed to connect to {}:{}", host, port);
Format String Syntax
Uses the powerful fmt library format syntax:
// Basic formatting
logger.info("Hello, {}!", name);
// Positional arguments
logger.info("Processing {1} of {0} items", total, current);
// Format specifiers
logger.info("Progress: {:.1%}", progress); // Percentage with 1 decimal
logger.info("Value: {:08.2f}", value); // Zero-padded floating point
logger.info("Hex: {:#x}", number); // Hexadecimal with 0x prefix
// Container formatting (requires fmt/ranges.h)
logger.info("Values: {}", std::vector{1, 2, 3, 4});
See demo_ros2_fmt_logger.cpp for more examples.
File truncated at 100 lines see the full file
CONTRIBUTING
No version for distro hydro showing rolling. Known supported distros are highlighted in the buttons above.
Repository Summary
| Checkout URI | https://github.com/nobleo/ros2_fmt_logger.git |
| VCS Type | git |
| VCS Version | main |
| Last Updated | 2025-10-08 |
| Dev Status | DEVELOPED |
| Released | UNRELEASED |
| Contributing |
Help Wanted (-)
Good First Issues (-) Pull Requests to Review (-) |
Packages
| Name | Version |
|---|---|
| ros2_fmt_logger | 1.0.0 |
README
ros2_fmt_logger
A modern, ROS 2 logging library that provides fmt-style formatting as a replacement for RCLCPP logging macros.
Features
- Function calls instead of macros:
logger.info("Hello, {}!", name)instead ofRCLCPP_INFO(logger, "Hello, %s", name.c_str()) - Additional
.on_change()method for logging changes in values - chrono syntax for throttling:
logger.warn_throttle(1s, "Warning: {}", value)
Examples
Once-only logging
logger.info_once("This message will only appear once, no matter how many times called");
Throttled logging
using std::chrono_literals::operator""s;
logger.warn_throttle(1s, "This warning appears at most once per second: {}", value);
Change-based logging
// Log only when the value changes
logger.info_on_change(sensor_value, "Sensor reading changed to: {}", sensor_value);
// Log only when change exceeds threshold
logger.error_on_change(temperature, 5.0, "Temperature changed significantly: {:.1f}°C", temperature);
Quick Start
Include in the package.xml
<depend>ros2_fmt_logger</depend>
Configure c++20 and find_package
find_package(ros2_fmt_logger REQUIRED)
target_link_libraries(your_target ros2_fmt_logger::ros2_fmt_logger)
Include the header
#include <ros2_fmt_logger/ros2_fmt_logger.hpp>
Create a logger instance
// From an rclcpp::Logger
auto logger = ros2_fmt_logger::Logger(node->get_logger());
// With custom clock for throttling features
auto logger = ros2_fmt_logger::Logger(node->get_logger(), node->get_clock());
3. Use modern logging syntax
// Instead of: RCLCPP_INFO(logger, "Processing item %d with value %.2f", id, value);
logger.info("Processing item {} with value {:.2f}", id, value);
// Instead of: RCLCPP_ERROR(logger, "Failed to connect to %s:%d", host.c_str(), port);
logger.error("Failed to connect to {}:{}", host, port);
Format String Syntax
Uses the powerful fmt library format syntax:
// Basic formatting
logger.info("Hello, {}!", name);
// Positional arguments
logger.info("Processing {1} of {0} items", total, current);
// Format specifiers
logger.info("Progress: {:.1%}", progress); // Percentage with 1 decimal
logger.info("Value: {:08.2f}", value); // Zero-padded floating point
logger.info("Hex: {:#x}", number); // Hexadecimal with 0x prefix
// Container formatting (requires fmt/ranges.h)
logger.info("Values: {}", std::vector{1, 2, 3, 4});
See demo_ros2_fmt_logger.cpp for more examples.
File truncated at 100 lines see the full file
CONTRIBUTING
No version for distro kinetic showing rolling. Known supported distros are highlighted in the buttons above.
Repository Summary
| Checkout URI | https://github.com/nobleo/ros2_fmt_logger.git |
| VCS Type | git |
| VCS Version | main |
| Last Updated | 2025-10-08 |
| Dev Status | DEVELOPED |
| Released | UNRELEASED |
| Contributing |
Help Wanted (-)
Good First Issues (-) Pull Requests to Review (-) |
Packages
| Name | Version |
|---|---|
| ros2_fmt_logger | 1.0.0 |
README
ros2_fmt_logger
A modern, ROS 2 logging library that provides fmt-style formatting as a replacement for RCLCPP logging macros.
Features
- Function calls instead of macros:
logger.info("Hello, {}!", name)instead ofRCLCPP_INFO(logger, "Hello, %s", name.c_str()) - Additional
.on_change()method for logging changes in values - chrono syntax for throttling:
logger.warn_throttle(1s, "Warning: {}", value)
Examples
Once-only logging
logger.info_once("This message will only appear once, no matter how many times called");
Throttled logging
using std::chrono_literals::operator""s;
logger.warn_throttle(1s, "This warning appears at most once per second: {}", value);
Change-based logging
// Log only when the value changes
logger.info_on_change(sensor_value, "Sensor reading changed to: {}", sensor_value);
// Log only when change exceeds threshold
logger.error_on_change(temperature, 5.0, "Temperature changed significantly: {:.1f}°C", temperature);
Quick Start
Include in the package.xml
<depend>ros2_fmt_logger</depend>
Configure c++20 and find_package
find_package(ros2_fmt_logger REQUIRED)
target_link_libraries(your_target ros2_fmt_logger::ros2_fmt_logger)
Include the header
#include <ros2_fmt_logger/ros2_fmt_logger.hpp>
Create a logger instance
// From an rclcpp::Logger
auto logger = ros2_fmt_logger::Logger(node->get_logger());
// With custom clock for throttling features
auto logger = ros2_fmt_logger::Logger(node->get_logger(), node->get_clock());
3. Use modern logging syntax
// Instead of: RCLCPP_INFO(logger, "Processing item %d with value %.2f", id, value);
logger.info("Processing item {} with value {:.2f}", id, value);
// Instead of: RCLCPP_ERROR(logger, "Failed to connect to %s:%d", host.c_str(), port);
logger.error("Failed to connect to {}:{}", host, port);
Format String Syntax
Uses the powerful fmt library format syntax:
// Basic formatting
logger.info("Hello, {}!", name);
// Positional arguments
logger.info("Processing {1} of {0} items", total, current);
// Format specifiers
logger.info("Progress: {:.1%}", progress); // Percentage with 1 decimal
logger.info("Value: {:08.2f}", value); // Zero-padded floating point
logger.info("Hex: {:#x}", number); // Hexadecimal with 0x prefix
// Container formatting (requires fmt/ranges.h)
logger.info("Values: {}", std::vector{1, 2, 3, 4});
See demo_ros2_fmt_logger.cpp for more examples.
File truncated at 100 lines see the full file
CONTRIBUTING
No version for distro melodic showing rolling. Known supported distros are highlighted in the buttons above.
Repository Summary
| Checkout URI | https://github.com/nobleo/ros2_fmt_logger.git |
| VCS Type | git |
| VCS Version | main |
| Last Updated | 2025-10-08 |
| Dev Status | DEVELOPED |
| Released | UNRELEASED |
| Contributing |
Help Wanted (-)
Good First Issues (-) Pull Requests to Review (-) |
Packages
| Name | Version |
|---|---|
| ros2_fmt_logger | 1.0.0 |
README
ros2_fmt_logger
A modern, ROS 2 logging library that provides fmt-style formatting as a replacement for RCLCPP logging macros.
Features
- Function calls instead of macros:
logger.info("Hello, {}!", name)instead ofRCLCPP_INFO(logger, "Hello, %s", name.c_str()) - Additional
.on_change()method for logging changes in values - chrono syntax for throttling:
logger.warn_throttle(1s, "Warning: {}", value)
Examples
Once-only logging
logger.info_once("This message will only appear once, no matter how many times called");
Throttled logging
using std::chrono_literals::operator""s;
logger.warn_throttle(1s, "This warning appears at most once per second: {}", value);
Change-based logging
// Log only when the value changes
logger.info_on_change(sensor_value, "Sensor reading changed to: {}", sensor_value);
// Log only when change exceeds threshold
logger.error_on_change(temperature, 5.0, "Temperature changed significantly: {:.1f}°C", temperature);
Quick Start
Include in the package.xml
<depend>ros2_fmt_logger</depend>
Configure c++20 and find_package
find_package(ros2_fmt_logger REQUIRED)
target_link_libraries(your_target ros2_fmt_logger::ros2_fmt_logger)
Include the header
#include <ros2_fmt_logger/ros2_fmt_logger.hpp>
Create a logger instance
// From an rclcpp::Logger
auto logger = ros2_fmt_logger::Logger(node->get_logger());
// With custom clock for throttling features
auto logger = ros2_fmt_logger::Logger(node->get_logger(), node->get_clock());
3. Use modern logging syntax
// Instead of: RCLCPP_INFO(logger, "Processing item %d with value %.2f", id, value);
logger.info("Processing item {} with value {:.2f}", id, value);
// Instead of: RCLCPP_ERROR(logger, "Failed to connect to %s:%d", host.c_str(), port);
logger.error("Failed to connect to {}:{}", host, port);
Format String Syntax
Uses the powerful fmt library format syntax:
// Basic formatting
logger.info("Hello, {}!", name);
// Positional arguments
logger.info("Processing {1} of {0} items", total, current);
// Format specifiers
logger.info("Progress: {:.1%}", progress); // Percentage with 1 decimal
logger.info("Value: {:08.2f}", value); // Zero-padded floating point
logger.info("Hex: {:#x}", number); // Hexadecimal with 0x prefix
// Container formatting (requires fmt/ranges.h)
logger.info("Values: {}", std::vector{1, 2, 3, 4});
See demo_ros2_fmt_logger.cpp for more examples.
File truncated at 100 lines see the full file
CONTRIBUTING
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Repository Summary
| Checkout URI | https://github.com/nobleo/ros2_fmt_logger.git |
| VCS Type | git |
| VCS Version | main |
| Last Updated | 2025-10-08 |
| Dev Status | DEVELOPED |
| Released | UNRELEASED |
| Contributing |
Help Wanted (-)
Good First Issues (-) Pull Requests to Review (-) |
Packages
| Name | Version |
|---|---|
| ros2_fmt_logger | 1.0.0 |
README
ros2_fmt_logger
A modern, ROS 2 logging library that provides fmt-style formatting as a replacement for RCLCPP logging macros.
Features
- Function calls instead of macros:
logger.info("Hello, {}!", name)instead ofRCLCPP_INFO(logger, "Hello, %s", name.c_str()) - Additional
.on_change()method for logging changes in values - chrono syntax for throttling:
logger.warn_throttle(1s, "Warning: {}", value)
Examples
Once-only logging
logger.info_once("This message will only appear once, no matter how many times called");
Throttled logging
using std::chrono_literals::operator""s;
logger.warn_throttle(1s, "This warning appears at most once per second: {}", value);
Change-based logging
// Log only when the value changes
logger.info_on_change(sensor_value, "Sensor reading changed to: {}", sensor_value);
// Log only when change exceeds threshold
logger.error_on_change(temperature, 5.0, "Temperature changed significantly: {:.1f}°C", temperature);
Quick Start
Include in the package.xml
<depend>ros2_fmt_logger</depend>
Configure c++20 and find_package
find_package(ros2_fmt_logger REQUIRED)
target_link_libraries(your_target ros2_fmt_logger::ros2_fmt_logger)
Include the header
#include <ros2_fmt_logger/ros2_fmt_logger.hpp>
Create a logger instance
// From an rclcpp::Logger
auto logger = ros2_fmt_logger::Logger(node->get_logger());
// With custom clock for throttling features
auto logger = ros2_fmt_logger::Logger(node->get_logger(), node->get_clock());
3. Use modern logging syntax
// Instead of: RCLCPP_INFO(logger, "Processing item %d with value %.2f", id, value);
logger.info("Processing item {} with value {:.2f}", id, value);
// Instead of: RCLCPP_ERROR(logger, "Failed to connect to %s:%d", host.c_str(), port);
logger.error("Failed to connect to {}:{}", host, port);
Format String Syntax
Uses the powerful fmt library format syntax:
// Basic formatting
logger.info("Hello, {}!", name);
// Positional arguments
logger.info("Processing {1} of {0} items", total, current);
// Format specifiers
logger.info("Progress: {:.1%}", progress); // Percentage with 1 decimal
logger.info("Value: {:08.2f}", value); // Zero-padded floating point
logger.info("Hex: {:#x}", number); // Hexadecimal with 0x prefix
// Container formatting (requires fmt/ranges.h)
logger.info("Values: {}", std::vector{1, 2, 3, 4});
See demo_ros2_fmt_logger.cpp for more examples.
File truncated at 100 lines see the full file