Robot Operating System Cookbook

Creating plugins

We will create a base class called RegularPolygon from which all of our plugins, including Triangle and Square, would inherit.

The source code of packages can be downloaded from GitHub (https://github.com/kbipin/Robot-Operating-System-Cookbook):

#ifndef PLUGINLIB_TUTORIALS__POLYGON_BASE_H_ 
#define PLUGINLIB_TUTORIALS__POLYGON_BASE_H_ 
 
namespace polygon_base 
{ 
  class RegularPolygon 
  { 
    public: 
      virtual void initialize(double side_length) = 0; 
      virtual double area() = 0; 
      virtual ~RegularPolygon(){} 
 
    protected: 
      RegularPolygon(){} 
  }; 
}; 
#endif 

We will create two RegularPolygon plugins; the first will be Triangle and the second will be Square: pluginlib_tutorials/include/pluginlib_tutorials/polygon_plugins.h.

 #ifndef PLUGINLIB_TUTORIALS__POLYGON_PLUGINS_H_ ...