Returns a unit vector in the direction of the wave vector (or k-vector) of the specified source. The unit vector has three elements corresponding to the X,Y and Z directions.
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Syntax |
Description |
|---|---|
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out = getsourcedirection("sourcename"); |
Returns a [3x1] matrix with a unit vector in the direction of the specified source wave vector. |
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Parameter |
Default value |
Type |
Description |
|
|---|---|---|---|---|
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sourcename |
required |
string |
Name of the source. |
Example
This example computes a unit vector in direction of the k-vector of the plane wave source named "source".
source_k = getsourcedirection("DGTD::source");
See Also
List of commands , getperiodicity , gratingorders , gratingprojection