檢視 $triregiontype 的原始碼

The $triregiontype is defining the triangular shape range's arrange method. The format is 

 $triregiontype
 @type  @periodnumber @period_spacing(<math>\mu m</math>)
 ...
 ...   repeat the number of triangular region number [[$triregionnumber]]


 @type: 
 1 : triangular , period along x if the periodnumber >1 
 11 : triangular , period along y if the periodnumber >1 
 2 : circular shape, period along x if the periodnumber >1 
 21 :   circular shape, period along y if the periodnumber >1 
 3 : elliptic shape, period along x if the periodnumber >1 
 31 :   elliptic shape, period along y if the periodnumber >1 
 4 : rectangular shape, period along x if the periodnumber >1 
 41 :   rectangular shape, period along y if the periodnumber >1 
 5:  sin kx function up, the shape is defined by x_left, x_right, y>sinkx and y<y2
 6:  sin kx function down, the shape is defined by x_left, x_right, y<sinkx and y>y2
 7:  sin ky function up (be careful to use it), the shape is defined by y_top, y_bottom, x<sinky and x>x2
 8:  sin ky  function right (be careful to use it), the shape is defined by y_top, y_bottom, x<sinky and x>x2

The way to define the type is similar to $empty function

 @periodnumber: How many period numbers used

 @@period_spacing: The spacing of each period objects. The unit is (<math>\mu m</math>)

The vertex points of aboved types are define in [[$triranges]]


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

 $triregionnumber
 2

This means that there are two triangular regions. This command must be set after the command
[[$ranges]]. The "triregionnumber" must be smaller than the "range number". <br>

This command needs to be set before the command 
before the commands [[$triregiontype]], [[$triranges]], 

For example: <br>
 
 $triregionnumber
 2

 $triregiontype
 1 1 2.0
 1 5 3.0

 $triranges
 0.0 0.0 2.0 2.0 4.0 0.0
 4.0 6.0 6.0 8.0 8.0 6.0 


x1,y1,x2,y2,x3,y3 are 3 vertex points of triangular