.. _trans:

=============================
**Coordinate transformation**
=============================

.. role:: red
	  
.. admonition:: Function: *r, phi* = c2pr(*x, y*) 

 Coordinate transformation, cartesian to polar. 

 **Parameter**
  | :red:`x` Abscissa 
  | :red:`y` Ordinate 

 **Return values**    
  | :red:`r`   Radius 
  | :red:`phi` Angle in [rad] 

.. admonition:: Function: *r, phi* = c2pd(*x, y*) 

 Coordinate transformation, cartesian to polar. 

 **Parameter**
  | :red:`x` Abscissa 
  | :red:`y` Ordinate 

 **Return values**
  | :red:`r` Radius 
  | :red:`phi` Angle in [deg]

.. admonition:: Function: *x, y* = pr2c(*r, phi*)  

 Coordinate transformation, polar to cartesian. 
   
 **Parameter**
  | :red:`r`   Radius 
  | :red:`phi` Angle in [rad] 

 **Return values**
  | :red:`x` Abscissa 
  | :red:`y` Ordinate 
  
.. admonition:: Function: *x, y* = pd2c(*r, phi*)  

 Coordinate transformation, polar to cartesian. 
		
 **Parameter**    
  | :red:`r`   Radius 
  | :red:`phi` Angle in [deg] 

 **Return values**
  | :red:`x` Abscissa 
  | :red:`y` Ordinate