檢視 $SourceType 的原始碼

=='''Format'''==
 $SourceType
  ''type    axis    dir    theta    phi''            <font color=green>// ''type'', ''axis'', and ''dir'' are integers, the others are floating.</font>

<font size=3>
type 1~3 dual wave: sin, exp, sin*exp; 11~13 one dir.: sin, exp, sin*exp.

the unit of theta and phi is degree, it will be changed to radians.

As type<20, theta is the polarized angle.
</font>

=='''Example'''==
 $SourceType
  12	3	-1	0	0

== '''Related commands''' ==
: [[$SourcePosition]], [[$SourceFrequency]]