$triregionnumber

The number of regions that is in the triangular shape.

Example

$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".

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

For example:

$triregionnumber
2

$triregiontype
@type @periodnumber @period_spacing
@type @periodnumber @period_spacing

$triranges
@x1 @y1 @x2 @y2 @x3 @y3
@x1 @y1 @x2 @y2 @x3 @y3

x1,y1,x2,y2,x3,y3 are 3 vertex points of triangular For the @type, it is the same definition as type in $emptyperiodshape, see below For @periodnumber, it is repeating how many times For the @period_spacing, it is defining the spacing of each repeating objects.

Example of @type

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.

Type5~8 are sine shape period structure.

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

$f_6<y<f_1sinf_2x+f_3;$

$f_4<x<f_5$

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

$f_6<x<f_1sinf_2y+f_3;$

$f_4<y<f_5$

$emptyperiodshape,