Creating two lines that pass thru PT1 at a specified angle.
$$
$$ Declaration
$$
ENTITY/PT1,LN1,LN2
$$
$$ Point Definition
$$
PT1=POINT/0,0
$$
$$ Line Definition
$$
LN1=LINE/PT1,ATANGL,45
LN2=LINE/PT1,ATANGL,-30
Line through a Point at an Absolute Angle