Removed everything from 'web' directory except genofiles and renamed the directory to 'genotype_files'

1 files changed, 0 insertions, 1069 deletions

diff --git a/web/webqtl/utility/svg.py b/web/webqtl/utility/svg.py
deleted file mode 100755
index e49a6c3c..00000000
--- a/web/webqtl/utility/svg.py
+++ /dev/null
@@ -1,1069 +0,0 @@
-# Copyright (C) University of Tennessee Health Science Center, Memphis, TN.
-#
-# This program is free software: you can redistribute it and/or modify it
-# under the terms of the GNU Affero General Public License
-# as published by the Free Software Foundation, either version 3 of the
-# License, or (at your option) any later version.
-#
-# This program is distributed in the hope that it will be useful,
-# but WITHOUT ANY WARRANTY; without even the implied warranty of
-# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
-# See the GNU Affero General Public License for more details.
-#
-# This program is available from Source Forge: at GeneNetwork Project
-# (sourceforge.net/projects/genenetwork/).
-#
-# Contact Drs. Robert W. Williams and Xiaodong Zhou (2010)
-# at rwilliams@uthsc.edu and xzhou15@uthsc.edu
-#
-#
-#
-# This module is used by GeneNetwork project (www.genenetwork.org)
-#
-# Created by GeneNetwork Core Team 2010/08/10
-#
-# Last updated by GeneNetwork Core Team 2010/10/20
-
-#!/usr/bin/env python
-##Copyright (c) 2002, Fedor Baart & Hans de Wit (Stichting Farmaceutische Kengetallen)
-##All rights reserved.
-##
-##Redistribution and use in source and binary forms, with or without modification,
-##are permitted provided that the following conditions are met:
-##
-##Redistributions of source code must retain the above copyright notice, this
-##list of conditions and the following disclaimer.
-##
-##Redistributions in binary form must reproduce the above copyright notice,
-##this list of conditions and the following disclaimer in the documentation and/or
-##other materials provided with the distribution.
-##
-##Neither the name of the Stichting Farmaceutische Kengetallen nor the names of
-##its contributors may be used to endorse or promote products derived from this
-##software without specific prior written permission.
-##
-##THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
-##AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
-##IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
-##DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE
-##FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
-##DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
-##SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
-##CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
-##OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-##OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
-##Thanks to Gerald Rosennfellner for his help and useful comments.
-
-__doc__="""Use SVGdraw to generate your SVGdrawings.
-
-SVGdraw uses an object model drawing and a method toXML to create SVG graphics
-by using easy to use classes and methods usualy you start by creating a drawing eg
-
-    d=drawing()
-    #then you create a SVG root element
-    s=svg()
-    #then you add some elements eg a circle and add it to the svg root element
-    c=circle()
-    #you can supply attributes by using named arguments.
-    c=circle(fill='red',stroke='blue')
-    #or by updating the attributes attribute:
-    c.attributes['stroke-width']=1
-    s.addElement(c)
-    #then you add the svg root element to the drawing
-    d.setSVG(s)
-    #and finaly you xmlify the drawing
-    d.toXml()
-    
-
-this results in the svg source of the drawing, which consists of a circle
-on a white background. Its as easy as that;)
-This module was created using the SVG specification of www.w3c.org and the
-O'Reilly (www.oreilly.com) python books as information sources. A svg viewer
-is available from www.adobe.com"""
-
-__version__="1.0"
-
-# there are two possibilities to generate svg:
-# via a dom implementation and directly using <element>text</element> strings
-# the latter is way faster (and shorter in coding)
-# the former is only used in debugging svg programs
-# maybe it will be removed alltogether after a while
-# with the following variable you indicate whether to use the dom implementation
-# Note that PyXML is required for using the dom implementation.
-# It is also possible to use the standard minidom. But I didn't try that one.
-# Anyway the text based approach is about 60 times faster than using the full dom implementation.
-use_dom_implementation=0
-
-
-import exceptions
-if use_dom_implementation<>0:
-    try:
-        from xml.dom import implementation
-        from xml.dom.ext import PrettyPrint
-    except:
-        raise exceptions.ImportError, "PyXML is required for using the dom implementation"
-#The implementation is used for the creating the XML document.
-#The prettyprint module is used for converting the xml document object to a xml file
-
-import sys
-assert sys.version_info[0]>=2
-if sys.version_info[1]<2:
-    True=1
-    False=0
-    file=open
-    
-sys.setrecursionlimit=50
-#The recursion limit is set conservative so mistakes like s=svg() s.addElement(s)
-#won't eat up too much processor time.
-
-#the following code is pasted form xml.sax.saxutils
-#it makes it possible to run the code without the xml sax package installed
-#To make it possible to have <rubbish> in your text elements, it is necessary to escape the texts
-def _escape(data, entities={}):
-    """Escape &, <, and > in a string of data.
-
-    You can escape other strings of data by passing a dictionary as
-    the optional entities parameter.  The keys and values must all be
-    strings; each key will be replaced with its corresponding value.
-    """
-    #data = data.replace("&", "&amp;")
-    data = data.replace("<", "&lt;")
-    data = data.replace(">", "&gt;")
-    for chars, entity in entities.items():
-        data = data.replace(chars, entity)
-    return data
-
-def _quoteattr(data, entities={}):
-    """Escape and quote an attribute value.
-
-    Escape &, <, and > in a string of data, then quote it for use as
-    an attribute value.  The \" character will be escaped as well, if
-    necessary.
-
-    You can escape other strings of data by passing a dictionary as
-    the optional entities parameter.  The keys and values must all be
-    strings; each key will be replaced with its corresponding value.
-    """
-    data = _escape(data, entities)
-    if '"' in data:
-        if "'" in data:
-            data = '"%s"' % data.replace('"', "&quot;")
-        else:
-            data = "'%s'" % data
-    else:
-        data = '"%s"' % data
-    return data
-
-
-
-def _xypointlist(a):
-    """formats a list of xy pairs"""
-    s=''
-    for e in a: #this could be done more elegant
-        s+=str(e)[1:-1] +'  '
-    return s
-
-def _viewboxlist(a):
-    """formats a tuple"""
-    s=''
-    for e in a: 
-        s+=str(e)+' '
-    return s
-
-def _pointlist(a):
-    """formats a list of numbers"""
-    return str(a)[1:-1]
-
-class pathdata:
-    """class used to create a pathdata object which can be used for a path.
-    although most methods are pretty straightforward it might be useful to look at the SVG specification."""
-    #I didn't test the methods below. 
-    def __init__(self,x=None,y=None):
-        self.path=[]
-        if x is not None and y is not None:
-            self.path.append('M '+str(x)+' '+str(y))
-    def closepath(self):
-        """ends the path"""
-        self.path.append('z')
-    def move(self,x,y):
-        """move to absolute"""
-        self.path.append('M '+str(x)+' '+str(y))
-    def relmove(self,x,y):
-        """move to relative"""
-        self.path.append('m '+str(x)+' '+str(y))
-    def line(self,x,y):
-        """line to absolute"""
-        self.path.append('L '+str(x)+' '+str(y))
-    def relline(self,x,y):
-        """line to relative"""
-        self.path.append('l '+str(x)+' '+str(y))
-    def hline(self,x):
-        """horizontal line to absolute"""
-        self.path.append('H'+str(x))
-    def relhline(self,x):
-        """horizontal line to relative"""
-        self.path.append('h'+str(x))
-    def vline(self,y):
-        """verical line to absolute"""
-        self.path.append('V'+str(y))
-    def relvline(self,y):
-        """vertical line to relative"""
-        self.path.append('v'+str(y))
-    def bezier(self,x1,y1,x2,y2,x,y):
-        """bezier with xy1 and xy2 to xy absolut"""
-        self.path.append('C'+str(x1)+','+str(y1)+' '+str(x2)+','+str(y2)+' '+str(x)+','+str(y))
-    def relbezier(self,x1,y1,x2,y2,x,y):
-        """bezier with xy1 and xy2 to xy relative"""
-        self.path.append('c'+str(x1)+','+str(y1)+' '+str(x2)+','+str(y2)+' '+str(x)+','+str(y))
-    def smbezier(self,x2,y2,x,y):
-        """smooth bezier with xy2 to xy absolut"""
-        self.path.append('S'+str(x2)+','+str(y2)+' '+str(x)+','+str(y))
-    def relsmbezier(self,x2,y2,x,y):
-        """smooth bezier with xy2 to xy relative"""
-        self.path.append('s'+str(x2)+','+str(y2)+' '+str(x)+','+str(y))
-    def qbezier(self,x1,y1,x,y):
-        """quadratic bezier with xy1 to xy absolut"""
-        self.path.append('Q'+str(x1)+','+str(y1)+' '+str(x)+','+str(y))
-    def relqbezier(self,x1,y1,x,y):
-        """quadratic bezier with xy1 to xy relative"""
-        self.path.append('q'+str(x1)+','+str(y1)+' '+str(x)+','+str(y))
-    def smqbezier(self,x,y):
-        """smooth quadratic bezier to xy absolut"""
-        self.path.append('T'+str(x)+','+str(y))
-    def relsmqbezier(self,x,y):
-        """smooth quadratic bezier to xy relative"""
-        self.path.append('t'+str(x)+','+str(y))
-    def ellarc(self,rx,ry,xrot,laf,sf,x,y):
-        """elliptival arc with rx and ry rotating with xrot using large-arc-flag and sweep-flag  to xy absolut"""
-        self.path.append('A'+str(rx)+','+str(ry)+' '+str(xrot)+' '+str(laf)+' '+str(sf)+' '+str(x)+' '+str(y))
-    def relellarc(self,rx,ry,xrot,laf,sf,x,y):
-        """elliptival arc with rx and ry rotating with xrot using large-arc-flag and sweep-flag  to xy relative"""
-        self.path.append('a'+str(rx)+','+str(ry)+' '+str(xrot)+' '+str(laf)+' '+str(sf)+' '+str(x)+' '+str(y))
-    def __repr__(self):
-        return ' '.join(self.path)
-    
-
-
-      
-class SVGelement:
-    """SVGelement(type,attributes,elements,text,namespace,**args)
-    Creates a arbitrary svg element and is intended to be subclassed not used on its own.
-    This element is the base of every svg element it defines a class which resembles
-    a xml-element. The main advantage of this kind of implementation is that you don't
-    have to create a toXML method for every different graph object. Every element
-    consists of a type, attribute, optional subelements, optional text and an optional
-    namespace. Note the elements==None, if elements = None:self.elements=[] construction.
-    This is done because if you default to elements=[] every object has a reference
-    to the same empty list."""
-    def __init__(self,type='',attributes=None,elements=None,text='',namespace='',cdata=None, **args):
-        self.type=type
-        if attributes==None:
-            self.attributes={}
-        else:
-            self.attributes=attributes
-        if elements==None:
-            self.elements=[]
-        else:
-            self.elements=elements
-        self.text=text
-        self.namespace=namespace
-        self.cdata=cdata
-        for arg in args.keys():
-            arg2 = arg.replace("__", ":")
-            arg2 = arg2.replace("_", "-")
-            self.attributes[arg2]=args[arg]
-    def addElement(self,SVGelement):
-        """adds an element to a SVGelement
-
-        SVGelement.addElement(SVGelement)
-        """
-        self.elements.append(SVGelement)
-
-    def toXml(self,level,f):
-        f.write('\t'*level)
-        f.write('<'+self.type)
-        for attkey in self.attributes.keys():
-            f.write(' '+_escape(str(attkey))+'='+_quoteattr(str(self.attributes[attkey])))
-        if self.namespace:
-            f.write(' xmlns="'+ _escape(str(self.namespace))+'" xmlns:xlink="http://www.w3.org/1999/xlink"')
-        if self.elements or self.text or self.cdata:
-            f.write('>')
-        if self.elements:
-            f.write('\n')
-        for element in self.elements:
-            element.toXml(level+1,f)
-        if self.cdata:
-            f.write('\n'+'\t'*(level+1)+'<![CDATA[')
-            for line in self.cdata.splitlines():
-               f.write('\n'+'\t'*(level+2)+line)
-            f.write('\n'+'\t'*(level+1)+']]>\n')
-        if self.text:
-            if type(self.text)==type(''): #If the text is only text
-                f.write(_escape(str(self.text)))
-            else:                         #If the text is a spannedtext class
-                f.write(str(self.text))
-        if self.elements:
-            f.write('\t'*level+'</'+self.type+'>\n')
-        elif self.text: 
-            f.write('</'+self.type+'>\n')
-        elif self.cdata:
-            f.write('\t'*level+'</'+self.type+'>\n')
-        else:
-            f.write('/>\n')
-            
-class tspan(SVGelement):
-    """ts=tspan(text='',**args)
-
-    a tspan element can be used for applying formatting to a textsection
-    usage:
-    ts=tspan('this text is bold')
-    ts.attributes['font-weight']='bold'
-    st=spannedtext()
-    st.addtspan(ts)
-    t=text(3,5,st)
-    """
-    def __init__(self,text=None,**args):
-        SVGelement.__init__(self,'tspan',**args)
-        if self.text<>None:
-            self.text=text
-    def __repr__(self):
-        s="<tspan"
-        for key,value in self.attributes.items():
-         s+= ' %s="%s"' % (key,value)
-        s+='>'
-        s+=self.text
-        s+='</tspan>'
-        return s
-    
-class tref(SVGelement):
-    """tr=tref(link='',**args)
-
-    a tref element can be used for referencing text by a link to its id.
-    usage:
-    tr=tref('#linktotext')
-    st=spannedtext()
-    st.addtref(tr)
-    t=text(3,5,st)
-    """
-    def __init__(self,link,**args):
-        SVGelement.__init__(self,'tref',{'xlink:href':link},**args)
-    def __repr__(self):
-        s="<tref"
-        
-        for key,value in self.attributes.items():
-         s+= ' %s="%s"' % (key,value)
-        s+='/>'
-        return s
-    
-class spannedtext:
-    """st=spannedtext(textlist=[])
-
-    a spannedtext can be used for text which consists of text, tspan's and tref's
-    You can use it to add to a text element or path element. Don't add it directly
-    to a svg or a group element.
-    usage:
-    
-    ts=tspan('this text is bold')
-    ts.attributes['font-weight']='bold'
-    tr=tref('#linktotext')
-    tr.attributes['fill']='red'
-    st=spannedtext()
-    st.addtspan(ts)
-    st.addtref(tr)
-    st.addtext('This text is not bold')
-    t=text(3,5,st)
-    """
-    def __init__(self,textlist=None):
-        if textlist==None:
-            self.textlist=[]
-        else:
-            self.textlist=textlist
-    def addtext(self,text=''):
-        self.textlist.append(text)
-    def addtspan(self,tspan):
-        self.textlist.append(tspan)
-    def addtref(self,tref):
-        self.textlist.append(tref)
-    def __repr__(self):
-        s=""
-        for element in self.textlist:
-            s+=str(element)
-        return s
-    
-class rect(SVGelement):
-    """r=rect(width,height,x,y,fill,stroke,stroke_width,**args)
-    
-    a rectangle is defined by a width and height and a xy pair 
-    """
-    def __init__(self,x=None,y=None,width=None,height=None,fill=None,stroke=None,stroke_width=None,**args):
-        if width==None or height==None:
-            if width<>None:
-                raise ValueError, 'height is required'
-            if height<>None:
-                raise ValueError, 'width is required'
-            else:
-                raise ValueError, 'both height and width are required'
-        SVGelement.__init__(self,'rect',{'width':width,'height':height},**args)
-        if x<>None:
-            self.attributes['x']=x
-        if y<>None:
-            self.attributes['y']=y
-        if fill<>None:
-            self.attributes['fill']=fill
-        if stroke<>None:
-            self.attributes['stroke']=stroke
-        if stroke_width<>None:
-            self.attributes['stroke-width']=stroke_width
-            
-class ellipse(SVGelement):
-    """e=ellipse(rx,ry,x,y,fill,stroke,stroke_width,**args)
-
-    an ellipse is defined as a center and a x and y radius.
-    """
-    def __init__(self,cx=None,cy=None,rx=None,ry=None,fill=None,stroke=None,stroke_width=None,**args):
-        if rx==None or ry== None:
-            if rx<>None:
-                raise ValueError, 'rx is required'
-            if ry<>None:
-                raise ValueError, 'ry is required'
-            else:
-                raise ValueError, 'both rx and ry are required'
-        SVGelement.__init__(self,'ellipse',{'rx':rx,'ry':ry},**args)
-        if cx<>None:
-            self.attributes['cx']=cx
-        if cy<>None:
-            self.attributes['cy']=cy
-        if fill<>None:
-            self.attributes['fill']=fill
-        if stroke<>None:
-            self.attributes['stroke']=stroke
-        if stroke_width<>None:
-            self.attributes['stroke-width']=stroke_width
-        
-   
-class circle(SVGelement):
-    """c=circle(x,y,radius,fill,stroke,stroke_width,**args)
-
-    The circle creates an element using a x, y and radius values eg
-    """
-    def __init__(self,cx=None,cy=None,r=None,fill=None,stroke=None,stroke_width=None,**args):
-        if r==None:
-            raise ValueError, 'r is required'
-        SVGelement.__init__(self,'circle',{'r':r},**args)
-        if cx<>None:
-            self.attributes['cx']=cx
-        if cy<>None:
-            self.attributes['cy']=cy
-        if fill<>None:
-            self.attributes['fill']=fill
-        if stroke<>None:
-            self.attributes['stroke']=stroke
-        if stroke_width<>None:
-            self.attributes['stroke-width']=stroke_width
-
-class point(circle):
-    """p=point(x,y,color)
-    
-    A point is defined as a circle with a size 1 radius. It may be more efficient to use a
-    very small rectangle if you use many points because a circle is difficult to render.
-    """
-    def __init__(self,x,y,fill='black',**args):
-        circle.__init__(self,x,y,1,fill,**args)
-
-class line(SVGelement):
-    """l=line(x1,y1,x2,y2,stroke,stroke_width,**args)
-    
-    A line is defined by a begin x,y pair and an end x,y pair
-    """
-    def __init__(self,x1=None,y1=None,x2=None,y2=None,stroke=None,stroke_width=None,**args):
-        SVGelement.__init__(self,'line',**args)
-        if x1<>None:
-            self.attributes['x1']=x1
-        if y1<>None:
-            self.attributes['y1']=y1
-        if x2<>None:
-            self.attributes['x2']=x2
-        if y2<>None:
-            self.attributes['y2']=y2
-        if stroke_width<>None:
-            self.attributes['stroke-width']=stroke_width
-        if stroke<>None:
-            self.attributes['stroke']=stroke
-            
-class polyline(SVGelement):
-    """pl=polyline([[x1,y1],[x2,y2],...],fill,stroke,stroke_width,**args)
-    
-    a polyline is defined by a list of xy pairs
-    """
-    def __init__(self,points,fill=None,stroke=None,stroke_width=None,**args):
-        SVGelement.__init__(self,'polyline',{'points':_xypointlist(points)},**args)
-        if fill<>None:
-            self.attributes['fill']=fill
-        if stroke_width<>None:
-            self.attributes['stroke-width']=stroke_width
-        if stroke<>None:
-            self.attributes['stroke']=stroke
-
-class polygon(SVGelement):
-    """pl=polyline([[x1,y1],[x2,y2],...],fill,stroke,stroke_width,**args)
-    
-    a polygon is defined by a list of xy pairs
-    """
-    def __init__(self,points,fill=None,stroke=None,stroke_width=None,**args):
-        SVGelement.__init__(self,'polygon',{'points':_xypointlist(points)},**args)
-        if fill<>None:
-            self.attributes['fill']=fill
-        if stroke_width<>None:
-            self.attributes['stroke-width']=stroke_width
-        if stroke<>None:
-            self.attributes['stroke']=stroke
-
-class path(SVGelement):
-    """p=path(path,fill,stroke,stroke_width,**args)
-
-    a path is defined by a path object and optional width, stroke and fillcolor
-    """
-    def __init__(self,pathdata,fill=None,stroke=None,stroke_width=None,id=None,**args):
-        SVGelement.__init__(self,'path',{'d':str(pathdata)},**args)
-        if stroke<>None:
-            self.attributes['stroke']=stroke
-        if fill<>None:
-            self.attributes['fill']=fill
-        if stroke_width<>None:
-            self.attributes['stroke-width']=stroke_width
-        if id<>None:
-            self.attributes['id']=id
-        
-        
-class text(SVGelement):
-    """t=text(x,y,text,font_size,font_family,**args)
-    
-    a text element can bge used for displaying text on the screen
-    """
-    def __init__(self,x=None,y=None,text=None,font_size=None,font_family=None,text_anchor=None,**args):
-        SVGelement.__init__(self,'text',**args)
-        if x<>None:
-            self.attributes['x']=x
-        if y<>None:
-            self.attributes['y']=y
-        if font_size<>None:
-            self.attributes['font-size']=font_size
-        if font_family<>None:
-            self.attributes['font-family']=font_family
-        if text<>None:
-            self.text=text
-        if text_anchor<>None:
-            self.attributes['text-anchor']=text_anchor
-
-
-class textpath(SVGelement):
-    """tp=textpath(text,link,**args)
-
-    a textpath places a text on a path which is referenced by a link.   
-    """
-    def __init__(self,link,text=None,**args):
-        SVGelement.__init__(self,'textPath',{'xlink:href':link},**args)
-        if text<>None:
-            self.text=text
-
-class pattern(SVGelement):
-    """p=pattern(x,y,width,height,patternUnits,**args)
-
-    A pattern is used to fill or stroke an object using a pre-defined
-    graphic object which can be replicated ("tiled") at fixed intervals
-    in x and y to cover the areas to be painted.
-    """
-    def __init__(self,x=None,y=None,width=None,height=None,patternUnits=None,**args):
-        SVGelement.__init__(self,'pattern',**args)
-        if x<>None:
-            self.attributes['x']=x
-        if y<>None:
-            self.attributes['y']=y
-        if width<>None:
-            self.attributes['width']=width
-        if height<>None:
-            self.attributes['height']=height
-        if patternUnits<>None:
-            self.attributes['patternUnits']=patternUnits
-
-class title(SVGelement):
-    """t=title(text,**args)
-    
-    a title is a text element. The text is displayed in the title bar
-    add at least one to the root svg element
-    """
-    def __init__(self,text=None,**args):
-        SVGelement.__init__(self,'title',**args)
-        if text<>None:
-            self.text=text
-
-class description(SVGelement):
-    """d=description(text,**args)
-    
-    a description can be added to any element and is used for a tooltip
-    Add this element before adding other elements.
-    """
-    def __init__(self,text=None,**args):
-        SVGelement.__init__(self,'desc',**args)
-        if text<>None:
-            self.text=text
-
-class lineargradient(SVGelement):
-    """lg=lineargradient(x1,y1,x2,y2,id,**args)
-
-    defines a lineargradient using two xy pairs.
-    stop elements van be added to define the gradient colors.
-    """
-    def __init__(self,x1=None,y1=None,x2=None,y2=None,id=None,**args):
-        SVGelement.__init__(self,'linearGradient',**args)
-        if x1<>None:
-            self.attributes['x1']=x1
-        if y1<>None:
-            self.attributes['y1']=y1
-        if x2<>None:
-            self.attributes['x2']=x2
-        if y2<>None:
-            self.attributes['y2']=y2
-        if id<>None:
-            self.attributes['id']=id
-
-class radialgradient(SVGelement):
-    """rg=radialgradient(cx,cy,r,fx,fy,id,**args)
-
-    defines a radial gradient using a outer circle which are defined by a cx,cy and r and by using a focalpoint.
-    stop elements van be added to define the gradient colors.
-    """
-    def __init__(self,cx=None,cy=None,r=None,fx=None,fy=None,id=None,**args):
-        SVGelement.__init__(self,'radialGradient',**args)
-        if cx<>None:
-            self.attributes['cx']=cx
-        if cy<>None:
-            self.attributes['cy']=cy
-        if r<>None:
-            self.attributes['r']=r
-        if fx<>None:
-            self.attributes['fx']=fx
-        if fy<>None:
-            self.attributes['fy']=fy
-        if id<>None:
-            self.attributes['id']=id
-            
-class stop(SVGelement):
-    """st=stop(offset,stop_color,**args)
-
-    Puts a stop color at the specified radius
-    """
-    def __init__(self,offset,stop_color=None,**args):
-        SVGelement.__init__(self,'stop',{'offset':offset},**args)
-        if stop_color<>None:
-            self.attributes['stop-color']=stop_color
-            
-class style(SVGelement):
-    """st=style(type,cdata=None,**args)
-
-    Add a CDATA element to this element for defing in line stylesheets etc..
-    """
-    def __init__(self,type,cdata=None,**args):
-        SVGelement.__init__(self,'style',{'type':type},cdata=cdata, **args)
-        
-            
-class image(SVGelement):
-    """im=image(url,width,height,x,y,**args)
-
-    adds an image to the drawing. Supported formats are .png, .jpg and .svg.
-    """
-    def __init__(self,url,x=None,y=None,width=None,height=None,**args):
-        if width==None or height==None:
-            if width<>None:
-                raise ValueError, 'height is required'
-            if height<>None:
-                raise ValueError, 'width is required'
-            else:
-                raise ValueError, 'both height and width are required'
-        SVGelement.__init__(self,'image',{'xlink:href':url,'width':width,'height':height},**args)
-        if x<>None:
-            self.attributes['x']=x
-        if y<>None:
-            self.attributes['y']=y
- 
-class cursor(SVGelement):
-    """c=cursor(url,**args)
-
-    defines a custom cursor for a element or a drawing
-    """
-    def __init__(self,url,**args):
-        SVGelement.__init__(self,'cursor',{'xlink:href':url},**args)
-
-    
-class marker(SVGelement):
-    """m=marker(id,viewbox,refX,refY,markerWidth,markerHeight,**args)
-    
-    defines a marker which can be used as an endpoint for a line or other pathtypes
-    add an element to it which should be used as a marker.
-    """
-    def __init__(self,id=None,viewBox=None,refx=None,refy=None,markerWidth=None,markerHeight=None,**args):
-        SVGelement.__init__(self,'marker',**args)
-        if id<>None:
-            self.attributes['id']=id
-        if viewBox<>None:
-            self.attributes['viewBox']=_viewboxlist(viewBox)
-        if refx<>None:
-            self.attributes['refX']=refx
-        if refy<>None:
-            self.attributes['refY']=refy
-        if markerWidth<>None:
-            self.attributes['markerWidth']=markerWidth
-        if markerHeight<>None:
-            self.attributes['markerHeight']=markerHeight
-        
-class group(SVGelement):
-    """g=group(id,**args)
-    
-    a group is defined by an id and is used to contain elements
-    g.addElement(SVGelement)
-    """
-    def __init__(self,id=None,**args):
-        SVGelement.__init__(self,'g',**args)
-        if id<>None:
-            self.attributes['id']=id
-
-class symbol(SVGelement):
-    """sy=symbol(id,viewbox,**args)
-
-    defines a symbol which can be used on different places in your graph using
-    the use element. A symbol is not rendered but you can use 'use' elements to
-    display it by referencing its id.
-    sy.addElement(SVGelement)
-    """
-    
-    def __init__(self,id=None,viewBox=None,**args):
-        SVGelement.__init__(self,'symbol',**args)
-        if id<>None:
-            self.attributes['id']=id
-        if viewBox<>None:
-            self.attributes['viewBox']=_viewboxlist(viewBox)
-            
-class defs(SVGelement):
-    """d=defs(**args)
-
-    container for defining elements
-    """
-    def __init__(self,**args):
-        SVGelement.__init__(self,'defs',**args)
-
-class switch(SVGelement):
-    """sw=switch(**args)
-
-    Elements added to a switch element which are "switched" by the attributes
-    requiredFeatures, requiredExtensions and systemLanguage.
-    Refer to the SVG specification for details.
-    """
-    def __init__(self,**args):
-        SVGelement.__init__(self,'switch',**args)
-
-        
-class use(SVGelement):
-    """u=use(link,x,y,width,height,**args)
-    
-    references a symbol by linking to its id and its position, height and width
-    """
-    def __init__(self,link,x=None,y=None,width=None,height=None,**args):
-        SVGelement.__init__(self,'use',{'xlink:href':link},**args)
-        if x<>None:
-            self.attributes['x']=x
-        if y<>None:
-            self.attributes['y']=y
-
-        if width<>None:
-            self.attributes['width']=width
-        if height<>None:
-            self.attributes['height']=height
-            
-            
-class link(SVGelement):
-    """a=link(url,**args)
-
-    a link  is defined by a hyperlink. add elements which have to be linked
-    a.addElement(SVGelement)
-    """
-    def __init__(self,link='',**args):
-        SVGelement.__init__(self,'a',{'xlink:href':link},**args)
-        
-class view(SVGelement):
-    """v=view(id,**args)
-
-    a view can be used to create a view with different attributes"""
-    def __init__(self,id=None,**args):
-        SVGelement.__init__(self,'view',**args)
-        if id<>None:
-            self.attributes['id']=id
-
-class script(SVGelement):
-    """sc=script(type,type,cdata,**args)
-
-    adds a script element which contains CDATA to the SVG drawing
-
-    """
-    def __init__(self,type,cdata=None,**args):
-        SVGelement.__init__(self,'script',{'type':type},cdata=cdata,**args)
-        
-class animate(SVGelement):
-    """an=animate(attribute,from,to,during,**args)
-
-    animates an attribute.    
-    """
-    def __init__(self,attribute,fr=None,to=None,dur=None,**args):
-        SVGelement.__init__(self,'animate',{'attributeName':attribute},**args)
-        if fr<>None:
-            self.attributes['from']=fr
-        if to<>None:
-            self.attributes['to']=to
-        if dur<>None:
-            self.attributes['dur']=dur
-        
-class animateMotion(SVGelement):
-    """an=animateMotion(pathdata,dur,**args)
-
-    animates a SVGelement over the given path in dur seconds
-    """
-    def __init__(self,pathdata,dur,**args):
-        SVGelement.__init__(self,'animateMotion',**args)
-        if pathdata<>None:
-            self.attributes['path']=str(pathdata)
-        if dur<>None:
-            self.attributes['dur']=dur
-
-class animateTransform(SVGelement):
-    """antr=animateTransform(type,from,to,dur,**args)
-    
-    transform an element from and to a value.
-    """
-    def __init__(self,type=None,fr=None,to=None,dur=None,**args):
-        SVGelement.__init__(self,'animateTransform',{'attributeName':'transform'},**args)
-        #As far as I know the attributeName is always transform
-        if type<>None:
-            self.attributes['type']=type
-        if fr<>None:
-            self.attributes['from']=fr
-        if to<>None:
-            self.attributes['to']=to
-        if dur<>None:
-            self.attributes['dur']=dur
-class animateColor(SVGelement):
-    """ac=animateColor(attribute,type,from,to,dur,**args)
-
-    Animates the color of a element
-    """
-    def __init__(self,attribute,type=None,fr=None,to=None,dur=None,**args):
-        SVGelement.__init__(self,'animateColor',{'attributeName':attribute},**args)
-        if type<>None:
-            self.attributes['type']=type
-        if fr<>None:
-            self.attributes['from']=fr
-        if to<>None:
-            self.attributes['to']=to
-        if dur<>None:
-            self.attributes['dur']=dur        
-class set(SVGelement):
-    """st=set(attribute,to,during,**args)
-    
-    sets an attribute to a value for a
-    """
-    def __init__(self,attribute,to=None,dur=None,**args):
-        SVGelement.__init__(self,'set',{'attributeName':attribute},**args)
-        if to<>None:
-            self.attributes['to']=to
-        if dur<>None:
-            self.attributes['dur']=dur
-
-
-            
-class svg(SVGelement):
-    """s=svg(viewbox,width,height,**args)
-    
-    a svg or element is the root of a drawing add all elements to a svg element.
-    You can have different svg elements in one svg file
-    s.addElement(SVGelement)
-
-    eg
-    d=drawing()
-    s=svg((0,0,100,100),'100%','100%')
-    c=circle(50,50,20)
-    s.addElement(c)
-    d.setSVG(s)
-    d.toXml()
-    """
-    def __init__(self,viewBox=None, width=None, height=None,**args):
-        SVGelement.__init__(self,'svg',**args)
-        if viewBox<>None:
-            self.attributes['viewBox']=_viewboxlist(viewBox)
-        if width<>None:
-            self.attributes['width']=width
-        if height<>None:
-            self.attributes['height']=height
-        self.namespace="http://www.w3.org/2000/svg"
-        
-class drawing:
-    """d=drawing()
-
-    this is the actual SVG document. It needs a svg element as a root.
-    Use the addSVG method to set the svg to the root. Use the toXml method to write the SVG
-    source to the screen or to a file
-    d=drawing()
-    d.addSVG(svg)
-    d.toXml(optionalfilename)
-    """
-
-    def __init__(self, entity={}):
-        self.svg=None
-        self.entity = entity
-    def setSVG(self,svg):
-        self.svg=svg
-        #Voeg een element toe aan de grafiek toe.
-    if use_dom_implementation==0:      
-        def toXml(self, filename='',compress=False):
-            import cStringIO
-            xml=cStringIO.StringIO()
-            xml.write("<?xml version='1.0' encoding='UTF-8'?>\n")
-            xml.write("<!DOCTYPE svg PUBLIC \"-//W3C//DTD SVG 1.0//EN\" \"http://www.w3.org/TR/2001/REC-SVG-20010904/DTD/svg10.dtd\"")
-            if self.entity:
-            	xml.write(" [\n")
-            	for item in self.entity.keys():
-            		xml.write("<!ENTITY %s \"%s\">\n" % (item, self.entity[item]))
-            	xml.write("]")
-            xml.write(">\n")
-            self.svg.toXml(0,xml)
-            if not filename:
-                if compress:
-                    import gzip
-                    f=cStringIO.StringIO()
-                    zf=gzip.GzipFile(fileobj=f,mode='wb')
-                    zf.write(xml.getvalue())
-                    zf.close()
-                    f.seek(0)
-                    return f.read()
-                else:
-                    return xml.getvalue()
-            else:
-                if filename[-4:]=='svgz':
-                    import gzip
-                    f=gzip.GzipFile(filename=filename,mode="wb", compresslevel=9)
-                    f.write(xml.getvalue())
-                    f.close()
-                else:
-                    f=file(filename,'w')
-                    f.write(xml.getvalue())
-                    f.close()
-
-    else:
-        def toXml(self,filename='',compress=False):
-            """drawing.toXml()        ---->to the screen
-            drawing.toXml(filename)---->to the file
-            writes a svg drawing to the screen or to a file
-            compresses if filename ends with svgz or if compress is true
-            """
-            doctype = implementation.createDocumentType('svg',"-//W3C//DTD SVG 1.0//EN""",'http://www.w3.org/TR/2001/REC-SVG-20010904/DTD/svg10.dtd ')
-        
-            global root
-            #root is defined global so it can be used by the appender. Its also possible to use it as an arugument but
-            #that is a bit messy.
-            root=implementation.createDocument(None,None,doctype)
-            #Create the xml document.
-            global appender
-            def appender(element,elementroot):
-                """This recursive function appends elements to an element and sets the attributes
-                and type. It stops when alle elements have been appended"""
-                if element.namespace:
-                    e=root.createElementNS(element.namespace,element.type)
-                else:
-                    e=root.createElement(element.type)
-                if element.text:
-                    textnode=root.createTextNode(element.text)
-                    e.appendChild(textnode)
-                for attribute in element.attributes.keys():   #in element.attributes is supported from python 2.2
-                    e.setAttribute(attribute,str(element.attributes[attribute]))
-                if element.elements:
-                    for el in element.elements:
-                        e=appender(el,e)
-                elementroot.appendChild(e)
-                return elementroot
-            root=appender(self.svg,root)
-            if not filename:
-                import cStringIO
-                xml=cStringIO.StringIO()
-                PrettyPrint(root,xml)
-                if compress:
-                    import gzip
-                    f=cStringIO.StringIO()
-                    zf=gzip.GzipFile(fileobj=f,mode='wb')
-                    zf.write(xml.getvalue())
-                    zf.close()
-                    f.seek(0)
-                    return f.read()
-                else:
-                    return xml.getvalue()
-            else:
-                try:
-                    if filename[-4:]=='svgz':
-                        import gzip
-                        import cStringIO
-                        xml=cStringIO.StringIO()
-                        PrettyPrint(root,xml)
-                        f=gzip.GzipFile(filename=filename,mode='wb',compresslevel=9)
-                        f.write(xml.getvalue())
-                        f.close()
-                    else:
-                        f=open(filename,'w')
-                        PrettyPrint(root,f)
-                        f.close()
-                except:
-                    print "Cannot write SVG file: " + filename
-    def validate(self):
-        try:
-            import xml.parsers.xmlproc.xmlval
-        except:
-            raise exceptions.ImportError,'PyXml is required for validating SVG'
-        svg=self.toXml()
-        xv=xml.parsers.xmlproc.xmlval.XMLValidator()
-        try:
-            xv.feed(svg)
-        except:
-            raise "SVG is not well formed, see messages above"
-        else:
-            print "SVG well formed"
-if __name__=='__main__':
-
-    
-    d=drawing()
-    s=svg((0,0,100,100))
-    r=rect(-100,-100,300,300,'cyan')
-    s.addElement(r)
-    
-    t=title('SVGdraw Demo')
-    s.addElement(t)
-    g=group('animations')
-    e=ellipse(0,0,5,2)
-    g.addElement(e)
-    c=circle(0,0,1,'red')
-    g.addElement(c)
-    pd=pathdata(0,-10)
-    for i in range(6):
-        pd.relsmbezier(10,5,0,10)
-        pd.relsmbezier(-10,5,0,10)
-    an=animateMotion(pd,10)
-    an.attributes['rotate']='auto-reverse'
-    an.attributes['repeatCount']="indefinite"
-    g.addElement(an)
-    s.addElement(g)
-    for i in range(20,120,20):
-        u=use('#animations',i,0)
-        s.addElement(u)
-    for i in range(0,120,20):
-        for j in range(5,105,10):
-            c=circle(i,j,1,'red','black',.5)
-            s.addElement(c)
-    d.setSVG(s)
-     
-    print d.toXml()
-