Public Member Functions
def	__init__ (self, d, *kwds)

def	__repr__ (self)

def	SVG (self, trans=None)

Public Attributes
	d

	trans

Detailed Description

Stores graphics primitive objects and applies a single coordinate
transformation to them. To compose coordinate systems, nest Fig
objects.

Fig(obj, obj, obj..., trans=function)

obj     optional list    a list of drawing primatives
trans   default=None     a coordinate transformation function

>>> fig = Fig(Line(0,0,1,1), Rect(0.2,0.2,0.8,0.8), trans="2*x, 2*y")
>>> print fig.SVG().xml()
<g>
    <path d='M0 0L2 2' />
    <path d='M0.4 0.4L1.6 0.4ZL1.6 1.6ZL0.4 1.6ZL0.4 0.4ZZ' />
</g>
>>> print Fig(fig, trans="x/2., y/2.").SVG().xml()
<g>
    <path d='M0 0L1 1' />
    <path d='M0.2 0.2L0.8 0.2ZL0.8 0.8ZL0.2 0.8ZL0.2 0.2ZZ' />
</g>

Definition at line 711 of file svgfig.py.

Constructor & Destructor Documentation

◆ init()

def svgfig.Fig.__init__	(		self,
		*	d,
		**	kwds
	)

Definition at line 742 of file svgfig.py.

   def __init__(self, *d, **kwds):
     self.d = list(d)
     defaults = {"trans":None}
     defaults.update(kwds)
     kwds = defaults
  
     self.trans = kwds["trans"]; del kwds["trans"]
     if len(kwds) != 0:
       raise TypeError("Fig() got unexpected keyword arguments %s" % kwds.keys())
  

Member Function Documentation

◆ repr()

def svgfig.Fig.__repr__ ( self )

Definition at line 734 of file svgfig.py.

   def __repr__(self):
     if self.trans == None:
       return "<Fig (%d items)>" % len(self.d)
     elif isinstance(self.trans, str):
       return "<Fig (%d items) x,y -> %s>" % (len(self.d), self.trans)
     else:
       return "<Fig (%d items) %s>" % (len(self.d), self.trans.__name__)
  

Referenced by data_sources.json_file.__str__().

◆ SVG()

def svgfig.Fig.SVG	(	self,
		trans = `None`
	)

Apply the transformation "trans" and return an SVG object.

Coordinate transformations in nested Figs will be composed.

Definition at line 752 of file svgfig.py.

   def SVG(self, trans=None):
     """Apply the transformation "trans" and return an SVG object.
  
     Coordinate transformations in nested Figs will be composed.
     """
  
     if trans == None: trans = self.trans
     if isinstance(trans, str): trans = totrans(trans)
  
     output = SVG("g")
     for s in self.d:
       if isinstance(s, SVG):
         output.append(s)
  
       elif isinstance(s, Fig):
         strans = s.trans
         if isinstance(strans, str): strans = totrans(strans)
  
         if trans == None: subtrans = strans
         elif strans == None: subtrans = trans
         else: subtrans = lambda x,y: trans(*strans(x, y))
  
         output.sub += s.SVG(subtrans).sub
  
       elif s == None: pass
  
       else:
         output.append(s.SVG(trans))
  
     return output
  