檢視 $SourcePosition 的原始碼

=='''Format'''==
 $SourcePosition
  ''pt<sub>1</sub>    pt<sub>2</sub>    pt<sub>3</sub>    pt<sub>4</sub>    pt<sub>5</sub>    pt<sub>6</sub>''                <font color=green>// all are floating points.</font>

<font size=3>
Define the source area. <br>

If it is not any node at the ''pt'', the program will find the nearest point/face as the source.
</font>

  When the type of source in [[$SourceType]] is 
  1~4: you only need ''pt<sub>1</sub>'' to define the position, ''axis'' (in $SourceType) decides which surface is used.
  11~14: similar to 1~4, but ''dir'' (in $SourceType) decides which direction the wave propagates.
  21~24: ''pt<sub>1~6</sub>'' are x-, x+, y-, y+, z-, and z+. This tells the program where the total field is.
  31~34: ''pt<sub>1~6</sub>'' are x-, x+, y-, y+, z-, and z+. (not finished)
  51~64: ''pt<sub>2,4,6</sub>'' are x, y, and z. Define which point is the source.

=='''Example'''==
 $SourcePosition
  700e-9    0    0    0    0    0

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