Method: TCPDF#StarPolygon

Defined in:

lib/tcpdf.rb

#StarPolygon(x0, y0, r, nv, ng, angle = 0, draw_circle = false, style = '', line_style = nil, fill_color = nil, circle_style = '', circle_outLine_style = nil, circle_fill_color = nil) ⇒ Object Also known as: star_polygon

Draws a star polygon

@param float :x0

Abscissa of center point.

@param float :y0

Ordinate of center point.

@param float :r

Radius of inscribed circle.

@param integer :nv

Number of vertices.

@param integer :ng

Number of gap (if (:ng % :nv = 1) then is a regular polygon).

@param float :angle

Angle oriented (anti-clockwise). Default value: 0.

@param boolean :draw_circle

Draw inscribed circle or not. Default value is false.

@param string :style

Style of rendering. See the getPathPaintOperator() function for more information.

@param array :line_style

Line style of polygon sides. Array with keys among the following:

• all: Line style of all sides. Array like for SetLineStyle SetLineStyle.

• 0 to (n - 1): Line style of each side. Array like for SetLineStyle SetLineStyle.

If a key is not present or is null, not draws the side. Default value is default line style (empty array). [@param array :fill_color ]Fill color. Format: array(red, green, blue). Default value: default color (empty array).

@param string :circle_style

Style of rendering of inscribed circle (if draws). Possible values are:

• D or empty string: Draw (default).

• F: Fill.

• DF or FD: Draw and fill.

• CNZ: Clipping mode (using the even-odd rule to determine which regions lie inside the clipping path).

• CEO: Clipping mode (using the nonzero winding number rule to determine which regions lie inside the clipping path).

@param array :circle_outLine_style

Line style of inscribed circle (if draws). Array like for SetLineStyle SetLineStyle. Default value: default line style (empty array).

@param array :circle_fill_color

Fill color of inscribed circle (if draws). Format: array(red, green, blue). Default value: default color (empty array).

@access public

@since 2.1.000 (2008-01-08)

# File 'lib/tcpdf.rb', line 8516

def StarPolygon(x0, y0, r, nv, ng, angle=0, draw_circle=false, style='', line_style=nil, fill_color=nil, circle_style='', circle_outLine_style=nil, circle_fill_color=nil)
  draw_circle = false if draw_circle == 0
  if nv < 2
    nv = 2
  end
  if draw_circle
    Circle(x0, y0, r, 0, 360, circle_style, circle_outLine_style, circle_fill_color)
  end
  p2 = []
  visited = []
  0.upto(nv -1) do |i|
    a = angle + i * 360 / nv
    a_rad = a * ::Math::PI / 180 # deg2rad
    p2.push x0 + r * ::Math.sin(a_rad)
    p2.push y0 + r * ::Math.cos(a_rad)
    visited.push false
  end
  p = []
  i = 0
  while true
    p.push p2[i * 2]
    p.push p2[i * 2 + 1]
    visited[i] = true
    i += ng
    i %= nv
    break if visited[i]
  end
  Polygon(p, style, line_style, fill_color)
end