Hi jthi,
 
Thank you very much for your feedback.
Metod 1:
Could you provide more detail steps for me, I can't plot like you.

 
Metod 2:
The plot appears to be perfect, but I encounter an issue when attempting to add a trend line (Actual position/ Current position). Could you please assist me in resolving this problem? Thank you.
Names Default To Here(1);
nw = New Window("Example",
	Graph Box(
		Frame Size(500, 500),
		XAxis(Min(-175), Max(175), Inc(25), Show Major Grid),
		YAxis(Min(-175), Max(175), Inc(25), Show Major Grid),
		XName("x"),
		YName("y"),
		Pen Size(3);
		Pen Color("Black");
		Circle({0, 0}, 150);
		"100",
			ScaleBox,
			{Legend Model(
				4,
				Properties(
					0,
					{Line Label Properties( {Name Label( 1 )} )},
					Item ID( "Actual position", 1 )
				)
			)},
		Pen Color("Red");
		Circle({-1.865, 7.892}, 150);
		"100",
			ScaleBox,
			{Legend Model(
				4,
				Properties(
					0,
					{Line Label Properties( {Name Label( 1 )} )},
					Item ID( "Real position", 1 )
				)
			)},
	)
);
 
Thank you very mauch.