檢視 $pattern tri period 的原始碼

The pattern tri period is the same definition in pattern type as the 


 $pattern_tri_period
 pattern_tri_num
 pattern_type N_period period_space <math>x_{1}</math> <math>y_{1}</math>  <math>x_{2}</math> <math>y_{2}</math>  <math>x_{3}</math> <math>y_{3}</math>  <math>n_{r}</math> <math>\alpha</math> if_empty
 
 For a triangular shape, we need 3 points (x1,y1), (x2,y2), and (x3,y3) to define the triangular shape. Then the refractive index and the absorption coefficient is put in the simulation.


'''<big><big>Parameter Explanation</big></big>'''

* n : number of empty section.
* type : type1=triangle, type2=circle, type3=ellipse, type4=rectangular, type5=Sinkx function up, type6=Sinkx function down, type7=Sinkx function up, type8=Sinkx function down.
* f1-f6 : you can refer to the information where at bottom of this page.
* int_period_num :  
* f_period_spacing :  



'''<big><big>Example</big></big>'''

Type.1~4 are triangle, circle, ellipse and rectangle.

If the parameters are not show in the figure, you should set those parameters as 0.

[[檔案:pic1.png|700px|left]]
<br style="clear:both;"> 



Type5~8 are sine shape period structure. <br />

Type.5 and 6 can be determined by this expression:

<math>f_6<y<f_1sinf_2x+f_3;</math><br />

<math>f_4<x<f_5</math>

Type.7 and 8 can be determined by this expression:

<math>f_6<x<f_1sinf_2y+f_3;</math><br />

<math>f_4<y<f_5</math>

[[檔案:pic2.png|700px|left]]

[[$emptyperiodshape]],