Gets and sets the start angle of the arc in radians, where 0 is along the x axis.
# Get the value of the property.propertyValue = arc2D_var.startAngle# Set the value of the property.arc2D_var.startAngle = propertyValue
#include <Core/Geometry/Arc2D.h>// Get the value of the property.double propertyValue = arc2D_var->startAngle();// Set the value of the property, where value_var is a double.bool returnValue = arc2D_var->startAngle(value_var);