| ROS Resources: Documentation | Support | Discussion Forum | Index | Service Status | ros @ Robotics Stack Exchange |
Folks,
I have some variables I declared in my CMakeList in one package. For example, I create the constant:
add_definitions(-DTRAINED_DATA_PATH="${PROJECT_SOURCE_DIR}/trained_data")
How can I make it available to other ROS packages?
You'll want to look into Catkin's CFG_EXTRA feature.
See How to export non-standard include directories in catkin? for an answer by @William that explains how to do this (this deals with include directories specifically, but the principle is the same. Just place an add_definitions(..) in your extras file, and be careful with PROJECT_SOURCE_DIR, as it may not have the same value (or be even defined) in the devel and install spaces).
Btw: using (ROS) parameters is a bit more flexible than using hard-coded, compile time constants, as it allows you to specify the location of things using a bit of configuration. That would also remove the need for exporting the define. If you have the option (ie: this is not a completely stand-alone library that is supposed to work without ROS), I'd use that.
Asked: 2016-09-02 14:23:31 -0500
Seen: 516 times
Last updated: Sep 04 '16
ROS Answers is licensed under Creative Commons Attribution 3.0 Content on this site is licensed under a Creative Commons Attribution Share Alike 3.0 license.
