Class: SVGPlot::SVGPath

Inherits:
SVGTagWithParent show all
Defined in:
lib/svgplot/plot.rb

Overview

SVG Path element, with ruby methods to describe the path

Instance Attribute Summary

Attributes inherited from SVGTagWithParent

#img

Attributes inherited from SVGTag

#attributes, #children, #tag

Instance Method Summary collapse

Methods inherited from SVGTag

#append_child, #linearGradient, #matrix, #merge_defaults, #method_missing, #path, #pop_defaults, #push_defaults, #radialGradient, #raw, #rotate, #scale, #skewX, #skewY, #spawn_child, #to_s, #translate, #use, #validate_attribute, #validate_attributes, #validate_child_name, #validate_tag, #with_style, #write, #write_points, #write_styles, #write_transforms

Constructor Details

#initialize(img = nil, attributes = {}, &block) ⇒ SVGPath

Returns a new instance of SVGPath.



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# File 'lib/svgplot/plot.rb', line 429

def initialize(img = nil, attributes={}, &block)
  attributes.merge!(:d => "") unless attributes.has_key? :d
  super(img, "path", attributes)
end

Dynamic Method Handling

This class handles dynamic methods through the method_missing method in the class SVGPlot::SVGTag

Instance Method Details

#arcTo(dx, dy, rx, ry, axis_rotation, large_arc_flag, sweep_flag) ⇒ Object

elliptical arc commands

Draws an elliptical arc from the current point to the point x,y. rx and ry are the elliptical radius in x and y direction. The x-rotation determines how much the arc is to be rotated around the x-axis. It only seems to have an effect when rx and ry have different values. The large-arc-flag doesn’t seem to be used (can be either 0 or 1). Neither value (0 or 1) changes the arc. The sweep-flag determines the direction to draw the arc in.



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# File 'lib/svgplot/plot.rb', line 579

def arcTo(dx, dy, rx, ry, axis_rotation, large_arc_flag, sweep_flag)
  add_d("a#{rx},#{ry} #{axis_rotation} #{large_arc_flag},#{sweep_flag} #{dx},#{dy}")
end

#arcToA(dx, dy, rx, ry, axis_rotation, large_arc_flag, sweep_flag) ⇒ Object 



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# File 'lib/svgplot/plot.rb', line 584

def arcToA(dx, dy, rx, ry, axis_rotation, large_arc_flag, sweep_flag)
  add_d("A#{rx},#{ry} #{axis_rotation} #{large_arc_flag},#{sweep_flag} #{dx},#{dy}")
end

#close ⇒ Object

close path command

Closes the path by drawing a line from current point to first point.



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# File 'lib/svgplot/plot.rb', line 595

def close
  add_d("Z")
end

#curveTo(dx, dy, x1, y1, x2, y2) ⇒ Object

curveTo commands

Draws a cubic Bezier curve from current pen point to dx,dy. x1,y1 and x2,y2 are start and end control points of the curve, controlling how it bends.



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# File 'lib/svgplot/plot.rb', line 505

def curveTo(dx, dy, x1, y1, x2, y2)
  add_d("c#{x1},#{y1} #{x2},#{y2} #{dx},#{dy}")
end

#curveToA(dx, dy, x1, y1, x2, y2) ⇒ Object 



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# File 'lib/svgplot/plot.rb', line 510

def curveToA(dx, dy, x1, y1, x2, y2)
  add_d("C#{x1},#{y1} #{x2},#{y2} #{dx},#{dy}")
end

#hlineTo(x) ⇒ Object

horizontal lineTo commands

Draws a horizontal line to the point defined by x.



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# File 'lib/svgplot/plot.rb', line 472

def hlineTo(x)
  add_d("h#{x}")
end

#hlineToA(x) ⇒ Object 



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# File 'lib/svgplot/plot.rb', line 477

def hlineToA(x)
  add_d("H#{x}")
end

#lineTo(x, y) ⇒ Object

lineTo commands

Draws a line from current pen location to specified point x,y.



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# File 'lib/svgplot/plot.rb', line 456

def lineTo(x, y)
  add_d("l#{x},#{y}")
end

#lineToA(x, y) ⇒ Object 



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# File 'lib/svgplot/plot.rb', line 461

def lineToA(x, y)
  add_d("L#{x},#{y}")
end

#moveTo(x, y) ⇒ Object

moveTo commands

Moves pen to specified point x,y without drawing.



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# File 'lib/svgplot/plot.rb', line 440

def moveTo(x, y)
  add_d("m#{x},#{y}")
end

#moveToA(x, y) ⇒ Object 



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# File 'lib/svgplot/plot.rb', line 445

def moveToA(x, y)
  add_d("M#{x},#{y}")
end

#qcurveTo(dx, dy, x1, y1) ⇒ Object

quadratic Bezier curveTo commands

Draws a quadratic Bezier curve from current pen point to dx,dy. x1,y1 is the control point controlling how the curve bends.



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# File 'lib/svgplot/plot.rb', line 540

def qcurveTo(dx, dy, x1, y1)
  add_d("q#{x1},#{y1} #{dx},#{dy}")
end

#qcurveToA(dx, dy, x1, y1) ⇒ Object 



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# File 'lib/svgplot/plot.rb', line 545

def qcurveToA(dx, dy, x1, y1)
  add_d("Q#{x1},#{y1} #{dx},#{dy}")
end

#scurveTo(dx, dy, x2, y2) ⇒ Object

smooth curveTo commands

Draws a cubic Bezier curve from current pen point to dx,dy. x2,y2 is the end control point. The start control point is is assumed to be the same as the end control point of the previous curve.



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# File 'lib/svgplot/plot.rb', line 523

def scurveTo(dx, dy, x2, y2)
  add_d("s#{x2},#{y2} #{dx},#{dy}")
end

#scurveToA(dx, dy, x2, y2) ⇒ Object 



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# File 'lib/svgplot/plot.rb', line 528

def scurveToA(dx, dy, x2, y2)
  add_d("S#{x2},#{y2} #{dx},#{dy}")
end

#sqcurveTo(dx, dy) ⇒ Object

smooth quadratic Bezier curveTo commands

Draws a quadratic Bezier curve from current pen point to dx,dy. The control point is assumed to be the same as the last control point used.



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# File 'lib/svgplot/plot.rb', line 557

def sqcurveTo(dx, dy)
  add_d("t#{dx},#{dy}")
end

#sqcurveToA(dx, dy) ⇒ Object 



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# File 'lib/svgplot/plot.rb', line 562

def sqcurveToA(dx, dy)
  add_d("T#{dx},#{dy}")
end

#vlineTo(y) ⇒ Object

vertical lineTo commands

Draws a vertical line to the point defined by y.



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# File 'lib/svgplot/plot.rb', line 488

def vlineTo(y)
  add_d("v#{y}")
end

#vlineToA(y) ⇒ Object 



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# File 'lib/svgplot/plot.rb', line 493

def vlineToA(y)
  add_d("V#{y}")
end