The command string. Either 'a' or 'A'.
The flag string. See the MDN documentation for a description and examples.
The radius of the arc to draw.
The point to move the cursor to after drawing the arc, specified either in absolute or relative coordinates depending on the command.
A string of the format 'command radius radius flags point'
Draw an elliptical arc curve. These coordinates are unitless and hence in the user coordinate system. See developer.mozilla.org/en-US/docs/Web/SVG/Attribute/d#Elliptical_Arc_Curve