diff options
Diffstat (limited to 'wqflask/utility/svg.py')
| -rw-r--r-- | wqflask/utility/svg.py | 692 |
1 files changed, 363 insertions, 329 deletions
diff --git a/wqflask/utility/svg.py b/wqflask/utility/svg.py index db13b9d1..b92cc2d1 100644 --- a/wqflask/utility/svg.py +++ b/wqflask/utility/svg.py @@ -25,54 +25,56 @@ # 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. +# 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: +# 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 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. +# 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. +# 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. +# 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. -##Thanks to Gerald Rosennfellner for his help and useful comments. - -__doc__="""Use SVGdraw to generate your SVGdrawings. +import sys +import exceptions +__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 + # 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 + # 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. + # you can supply attributes by using named arguments. c=circle(fill='red',stroke='blue') - #or by updating the attributes attribute: + # or by updating the attributes attribute: c.attributes['stroke-width']=1 s.addElement(c) - #then you add the svg root element to the drawing + # then you add the svg root element to the drawing d.setSVG(s) - #and finaly you xmlify the drawing + # and finaly you xmlify the drawing d.toXml() @@ -82,7 +84,7 @@ 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" +__version__ = "1.0" # there are two possibilities to generate svg: # via a dom implementation and directly using <element>text</element> strings @@ -93,33 +95,34 @@ __version__="1.0" # 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 +use_dom_implementation = 0 -import exceptions -if use_dom_implementation<>0: +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 + 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 + +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 + -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. @@ -127,13 +130,14 @@ def _escape(data, entities={}): the optional entities parameter. The keys and values must all be strings; each key will be replaced with its corresponding value. """ - #data = data.replace("&", "&") + # data = data.replace("&", "&") data = data.replace("<", "<") data = data.replace(">", ">") - for chars, entity in entities.items(): + for chars, entity in list(entities.items()): data = data.replace(chars, entity) return data + def _quoteattr(data, entities={}): """Escape and quote an attribute value. @@ -156,96 +160,121 @@ def _quoteattr(data, entities={}): 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] +' ' + 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='' + s = '' for e in a: - s+=str(e)+' ' + 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=[] + # 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): + + def move(self, x, y): """move to absolute""" self.path.append('M '+str(x)+' '+str(y)) - def relmove(self,x,y): + + def relmove(self, x, y): """move to relative""" self.path.append('m '+str(x)+' '+str(y)) - def line(self,x,y): + + def line(self, x, y): """line to absolute""" self.path.append('L '+str(x)+' '+str(y)) - def relline(self,x,y): + + def relline(self, x, y): """line to relative""" self.path.append('l '+str(x)+' '+str(y)) - def hline(self,x): + + def hline(self, x): """horizontal line to absolute""" self.path.append('H'+str(x)) - def relhline(self,x): + + def relhline(self, x): """horizontal line to relative""" self.path.append('h'+str(x)) - def vline(self,y): + + def vline(self, y): """verical line to absolute""" self.path.append('V'+str(y)) - def relvline(self,y): + + def relvline(self, y): """vertical line to relative""" self.path.append('v'+str(y)) - def bezier(self,x1,y1,x2,y2,x,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): + 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): + 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): + + 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): + + 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): + + 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): + + def smqbezier(self, x, y): """smooth quadratic bezier to xy absolut""" self.path.append('T'+str(x)+','+str(y)) - def relsmqbezier(self,x,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): + + 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): + 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)) + 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. @@ -256,52 +285,56 @@ class SVGelement: 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={} + + 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=[] + 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(): + self.elements = elements + self.text = text + self.namespace = namespace + self.cdata = cdata + for arg in list(args.keys()): arg2 = arg.replace("__", ":") arg2 = arg2.replace("_", "-") - self.attributes[arg2]=args[arg] - def addElement(self,SVGelement): + 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): + 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]))) + for attkey in list(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"') + 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) + 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 + if isinstance(self.text, type('')): # If the text is only text f.write(_escape(str(self.text))) - else: #If the text is a spannedtext class + else: # If the text is a spannedtext class f.write(str(self.text)) if self.elements: f.write('\t'*level+'</'+self.type+'>\n') @@ -312,6 +345,7 @@ class SVGelement: else: f.write('/>\n') + class tspan(SVGelement): """ts=tspan(text='',**args) @@ -323,19 +357,22 @@ class tspan(SVGelement): 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 __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>' + s = "<tspan" + for key, value in list(self.attributes.items()): + s += ' %s="%s"' % (key, value) + s += '>' + s += self.text + s += '</tspan>' return s + class tref(SVGelement): """tr=tref(link='',**args) @@ -346,16 +383,19 @@ class tref(SVGelement): st.addtref(tr) t=text(3,5,st) """ - def __init__(self,link,**args): - SVGelement.__init__(self,'tref',{'xlink:href':link},**args) + + def __init__(self, link, **args): + SVGelement.__init__(self, 'tref', {'xlink:href': link}, **args) + def __repr__(self): - s="<tref" + s = "<tref" - for key,value in self.attributes.items(): - s+= ' %s="%s"' % (key,value) - s+='/>' + for key, value in list(self.attributes.items()): + s += ' %s="%s"' % (key, value) + s += '/>' return s + class spannedtext: """st=spannedtext(textlist=[]) @@ -374,46 +414,49 @@ class spannedtext: st.addtext('This text is not bold') t=text(3,5,st) """ - def __init__(self,textlist=None): - if textlist==None: - self.textlist=[] + + def __init__(self, textlist=None): + if textlist == None: + self.textlist = [] else: - self.textlist=textlist - def addtext(self,text=''): + self.textlist = textlist + + def addtext(self, text=''): self.textlist.append(text) - def addtspan(self,tspan): + + def addtspan(self, tspan): self.textlist.append(tspan) - def addtref(self,tref): + + def addtref(self, tref): self.textlist.append(tref) + def __repr__(self): - s="" + s = "" for element in self.textlist: - s+=str(element) + 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: + + 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: + 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: + if y!=None: self.attributes['y']=y - if fill<>None: + if fill!=None: self.attributes['fill']=fill - if stroke<>None: + if stroke!=None: self.attributes['stroke']=stroke - if stroke_width<>None: + if stroke_width!=None: self.attributes['stroke-width']=stroke_width class ellipse(SVGelement): @@ -423,22 +466,18 @@ class ellipse(SVGelement): """ 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: + 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: + if cy!=None: self.attributes['cy']=cy - if fill<>None: + if fill!=None: self.attributes['fill']=fill - if stroke<>None: + if stroke!=None: self.attributes['stroke']=stroke - if stroke_width<>None: + if stroke_width!=None: self.attributes['stroke-width']=stroke_width @@ -449,17 +488,17 @@ class circle(SVGelement): """ 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: + raise ValueError('r is required') + SVGelement.__init__(self, 'circle', {'r':r}, **args) + if cx!=None: self.attributes['cx']=cx - if cy<>None: + if cy!=None: self.attributes['cy']=cy - if fill<>None: + if fill!=None: self.attributes['fill']=fill - if stroke<>None: + if stroke!=None: self.attributes['stroke']=stroke - if stroke_width<>None: + if stroke_width!=None: self.attributes['stroke-width']=stroke_width class point(circle): @@ -469,7 +508,7 @@ class point(circle): 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) + circle.__init__(self, x, y, 1, fill, **args) class line(SVGelement): """l=line(x1,y1,x2,y2,stroke,stroke_width,**args) @@ -477,18 +516,18 @@ class line(SVGelement): 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: + SVGelement.__init__(self, 'line', **args) + if x1!=None: self.attributes['x1']=x1 - if y1<>None: + if y1!=None: self.attributes['y1']=y1 - if x2<>None: + if x2!=None: self.attributes['x2']=x2 - if y2<>None: + if y2!=None: self.attributes['y2']=y2 - if stroke_width<>None: + if stroke_width!=None: self.attributes['stroke-width']=stroke_width - if stroke<>None: + if stroke!=None: self.attributes['stroke']=stroke class polyline(SVGelement): @@ -497,12 +536,12 @@ class polyline(SVGelement): 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: + SVGelement.__init__(self, 'polyline', {'points':_xypointlist(points)}, **args) + if fill!=None: self.attributes['fill']=fill - if stroke_width<>None: + if stroke_width!=None: self.attributes['stroke-width']=stroke_width - if stroke<>None: + if stroke!=None: self.attributes['stroke']=stroke class polygon(SVGelement): @@ -511,12 +550,12 @@ class polygon(SVGelement): 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: + SVGelement.__init__(self, 'polygon', {'points':_xypointlist(points)}, **args) + if fill!=None: self.attributes['fill']=fill - if stroke_width<>None: + if stroke_width!=None: self.attributes['stroke-width']=stroke_width - if stroke<>None: + if stroke!=None: self.attributes['stroke']=stroke class path(SVGelement): @@ -525,14 +564,14 @@ class path(SVGelement): 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: + SVGelement.__init__(self, 'path', {'d':str(pathdata)}, **args) + if stroke!=None: self.attributes['stroke']=stroke - if fill<>None: + if fill!=None: self.attributes['fill']=fill - if stroke_width<>None: + if stroke_width!=None: self.attributes['stroke-width']=stroke_width - if id<>None: + if id!=None: self.attributes['id']=id @@ -542,18 +581,18 @@ class text(SVGelement): 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: + SVGelement.__init__(self, 'text', **args) + if x!=None: self.attributes['x']=x - if y<>None: + if y!=None: self.attributes['y']=y - if font_size<>None: + if font_size!=None: self.attributes['font-size']=font_size - if font_family<>None: + if font_family!=None: self.attributes['font-family']=font_family - if text<>None: + if text!=None: self.text=text - if text_anchor<>None: + if text_anchor!=None: self.attributes['text-anchor']=text_anchor @@ -563,8 +602,8 @@ class textpath(SVGelement): 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: + SVGelement.__init__(self, 'textPath', {'xlink:href':link}, **args) + if text!=None: self.text=text class pattern(SVGelement): @@ -575,16 +614,16 @@ class pattern(SVGelement): 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: + SVGelement.__init__(self, 'pattern', **args) + if x!=None: self.attributes['x']=x - if y<>None: + if y!=None: self.attributes['y']=y - if width<>None: + if width!=None: self.attributes['width']=width - if height<>None: + if height!=None: self.attributes['height']=height - if patternUnits<>None: + if patternUnits!=None: self.attributes['patternUnits']=patternUnits class title(SVGelement): @@ -594,8 +633,8 @@ class title(SVGelement): add at least one to the root svg element """ def __init__(self,text=None,**args): - SVGelement.__init__(self,'title',**args) - if text<>None: + SVGelement.__init__(self, 'title', **args) + if text!=None: self.text=text class description(SVGelement): @@ -605,8 +644,8 @@ class description(SVGelement): Add this element before adding other elements. """ def __init__(self,text=None,**args): - SVGelement.__init__(self,'desc',**args) - if text<>None: + SVGelement.__init__(self, 'desc', **args) + if text!=None: self.text=text class lineargradient(SVGelement): @@ -616,16 +655,16 @@ class lineargradient(SVGelement): 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: + SVGelement.__init__(self, 'linearGradient', **args) + if x1!=None: self.attributes['x1']=x1 - if y1<>None: + if y1!=None: self.attributes['y1']=y1 - if x2<>None: + if x2!=None: self.attributes['x2']=x2 - if y2<>None: + if y2!=None: self.attributes['y2']=y2 - if id<>None: + if id!=None: self.attributes['id']=id class radialgradient(SVGelement): @@ -635,18 +674,18 @@ class radialgradient(SVGelement): 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: + SVGelement.__init__(self, 'radialGradient', **args) + if cx!=None: self.attributes['cx']=cx - if cy<>None: + if cy!=None: self.attributes['cy']=cy - if r<>None: + if r!=None: self.attributes['r']=r - if fx<>None: + if fx!=None: self.attributes['fx']=fx - if fy<>None: + if fy!=None: self.attributes['fy']=fy - if id<>None: + if id!=None: self.attributes['id']=id class stop(SVGelement): @@ -655,8 +694,8 @@ class stop(SVGelement): 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: + SVGelement.__init__(self, 'stop', {'offset':offset}, **args) + if stop_color!=None: self.attributes['stop-color']=stop_color class style(SVGelement): @@ -665,7 +704,7 @@ class style(SVGelement): 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) + SVGelement.__init__(self, 'style', {'type':type}, cdata=cdata, **args) class image(SVGelement): @@ -675,16 +714,11 @@ class image(SVGelement): """ 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: + 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: + if y!=None: self.attributes['y']=y class cursor(SVGelement): @@ -693,7 +727,7 @@ class cursor(SVGelement): defines a custom cursor for a element or a drawing """ def __init__(self,url,**args): - SVGelement.__init__(self,'cursor',{'xlink:href':url},**args) + SVGelement.__init__(self, 'cursor', {'xlink:href':url}, **args) class marker(SVGelement): @@ -703,18 +737,18 @@ class marker(SVGelement): 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: + SVGelement.__init__(self, 'marker', **args) + if id!=None: self.attributes['id']=id - if viewBox<>None: + if viewBox!=None: self.attributes['viewBox']=_viewboxlist(viewBox) - if refx<>None: + if refx!=None: self.attributes['refX']=refx - if refy<>None: + if refy!=None: self.attributes['refY']=refy - if markerWidth<>None: + if markerWidth!=None: self.attributes['markerWidth']=markerWidth - if markerHeight<>None: + if markerHeight!=None: self.attributes['markerHeight']=markerHeight class group(SVGelement): @@ -724,8 +758,8 @@ class group(SVGelement): g.addElement(SVGelement) """ def __init__(self,id=None,**args): - SVGelement.__init__(self,'g',**args) - if id<>None: + SVGelement.__init__(self, 'g', **args) + if id!=None: self.attributes['id']=id class symbol(SVGelement): @@ -738,10 +772,10 @@ class symbol(SVGelement): """ def __init__(self,id=None,viewBox=None,**args): - SVGelement.__init__(self,'symbol',**args) - if id<>None: + SVGelement.__init__(self, 'symbol', **args) + if id!=None: self.attributes['id']=id - if viewBox<>None: + if viewBox!=None: self.attributes['viewBox']=_viewboxlist(viewBox) class defs(SVGelement): @@ -750,7 +784,7 @@ class defs(SVGelement): container for defining elements """ def __init__(self,**args): - SVGelement.__init__(self,'defs',**args) + SVGelement.__init__(self, 'defs', **args) class switch(SVGelement): """sw=switch(**args) @@ -760,7 +794,7 @@ class switch(SVGelement): Refer to the SVG specification for details. """ def __init__(self,**args): - SVGelement.__init__(self,'switch',**args) + SVGelement.__init__(self, 'switch', **args) class use(SVGelement): @@ -769,15 +803,15 @@ class use(SVGelement): 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: + SVGelement.__init__(self, 'use', {'xlink:href':link}, **args) + if x!=None: self.attributes['x']=x - if y<>None: + if y!=None: self.attributes['y']=y - if width<>None: + if width!=None: self.attributes['width']=width - if height<>None: + if height!=None: self.attributes['height']=height @@ -788,15 +822,15 @@ class link(SVGelement): a.addElement(SVGelement) """ def __init__(self,link='',**args): - SVGelement.__init__(self,'a',{'xlink:href':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: + SVGelement.__init__(self, 'view', **args) + if id!=None: self.attributes['id']=id class script(SVGelement): @@ -806,7 +840,7 @@ class script(SVGelement): """ def __init__(self,type,cdata=None,**args): - SVGelement.__init__(self,'script',{'type':type},cdata=cdata,**args) + SVGelement.__init__(self, 'script', {'type':type}, cdata=cdata, **args) class animate(SVGelement): """an=animate(attribute,from,to,during,**args) @@ -814,12 +848,12 @@ class animate(SVGelement): animates an attribute. """ def __init__(self,attribute,fr=None,to=None,dur=None,**args): - SVGelement.__init__(self,'animate',{'attributeName':attribute},**args) - if fr<>None: + SVGelement.__init__(self, 'animate', {'attributeName':attribute}, **args) + if fr!=None: self.attributes['from']=fr - if to<>None: + if to!=None: self.attributes['to']=to - if dur<>None: + if dur!=None: self.attributes['dur']=dur class animateMotion(SVGelement): @@ -828,10 +862,10 @@ class animateMotion(SVGelement): animates a SVGelement over the given path in dur seconds """ def __init__(self,pathdata,dur,**args): - SVGelement.__init__(self,'animateMotion',**args) - if pathdata<>None: + SVGelement.__init__(self, 'animateMotion', **args) + if pathdata!=None: self.attributes['path']=str(pathdata) - if dur<>None: + if dur!=None: self.attributes['dur']=dur class animateTransform(SVGelement): @@ -840,15 +874,15 @@ class animateTransform(SVGelement): 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: + 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: + if fr!=None: self.attributes['from']=fr - if to<>None: + if to!=None: self.attributes['to']=to - if dur<>None: + if dur!=None: self.attributes['dur']=dur class animateColor(SVGelement): """ac=animateColor(attribute,type,from,to,dur,**args) @@ -856,14 +890,14 @@ class animateColor(SVGelement): 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: + SVGelement.__init__(self, 'animateColor', {'attributeName':attribute}, **args) + if type!=None: self.attributes['type']=type - if fr<>None: + if fr!=None: self.attributes['from']=fr - if to<>None: + if to!=None: self.attributes['to']=to - if dur<>None: + if dur!=None: self.attributes['dur']=dur class set(SVGelement): """st=set(attribute,to,during,**args) @@ -871,10 +905,10 @@ class set(SVGelement): 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: + SVGelement.__init__(self, 'set', {'attributeName':attribute}, **args) + if to!=None: self.attributes['to']=to - if dur<>None: + if dur!=None: self.attributes['dur']=dur @@ -895,12 +929,12 @@ class svg(SVGelement): d.toXml() """ def __init__(self,viewBox=None, width=None, height=None,**args): - SVGelement.__init__(self,'svg',**args) - if viewBox<>None: + SVGelement.__init__(self, 'svg', **args) + if viewBox!=None: self.attributes['viewBox']=_viewboxlist(viewBox) - if width<>None: + if width!=None: self.attributes['width']=width - if height<>None: + if height!=None: self.attributes['height']=height self.namespace="http://www.w3.org/2000/svg" @@ -918,27 +952,27 @@ class drawing: def __init__(self, entity={}): self.svg=None self.entity = entity - def setSVG(self,svg): + def setSVG(self, svg): self.svg=svg - #Voeg een element toe aan de grafiek toe. + # Voeg een element toe aan de grafiek toe. if use_dom_implementation==0: def toXml(self, filename='',compress=False): - import cStringIO - xml=cStringIO.StringIO() + import io + xml=io.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(): + for item in list(self.entity.keys()): xml.write("<!ENTITY %s \"%s\">\n" % (item, self.entity[item])) xml.write("]") xml.write(">\n") - self.svg.toXml(0,xml) + self.svg.toXml(0, xml) if not filename: if compress: import gzip - f=cStringIO.StringIO() - zf=gzip.GzipFile(fileobj=f,mode='wb') + f=io.StringIO() + zf=gzip.GzipFile(fileobj=f, mode='wb') zf.write(xml.getvalue()) zf.close() f.seek(0) @@ -948,11 +982,11 @@ class drawing: else: if filename[-4:]=='svgz': import gzip - f=gzip.GzipFile(filename=filename,mode="wb", compresslevel=9) + f=gzip.GzipFile(filename=filename, mode="wb", compresslevel=9) f.write(xml.getvalue()) f.close() else: - f=file(filename,'w') + f=file(filename, 'w') f.write(xml.getvalue()) f.close() @@ -963,40 +997,40 @@ class drawing: 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 ') + 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. + # 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): + 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) + 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])) + for attribute in list(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) + e=appender(el, e) elementroot.appendChild(e) return elementroot - root=appender(self.svg,root) + root=appender(self.svg, root) if not filename: - import cStringIO - xml=cStringIO.StringIO() - PrettyPrint(root,xml) + import io + xml=io.StringIO() + PrettyPrint(root, xml) if compress: import gzip - f=cStringIO.StringIO() - zf=gzip.GzipFile(fileobj=f,mode='wb') + f=io.StringIO() + zf=gzip.GzipFile(fileobj=f, mode='wb') zf.write(xml.getvalue()) zf.close() f.seek(0) @@ -1007,23 +1041,23 @@ class drawing: try: if filename[-4:]=='svgz': import gzip - import cStringIO - xml=cStringIO.StringIO() - PrettyPrint(root,xml) - f=gzip.GzipFile(filename=filename,mode='wb',compresslevel=9) + import io + xml=io.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=open(filename, 'w') + PrettyPrint(root, f) f.close() except: - print "Cannot write SVG file: " + filename + 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' + raise exceptions.ImportError('PyXml is required for validating SVG') svg=self.toXml() xv=xml.parsers.xmlproc.xmlval.XMLValidator() try: @@ -1031,38 +1065,38 @@ class drawing: except: raise Exception("SVG is not well formed, see messages above") else: - print "SVG well formed" + print("SVG well formed") if __name__=='__main__': d=drawing() - s=svg((0,0,100,100)) - r=rect(-100,-100,300,300,'cyan') + 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) + e=ellipse(0, 0, 5, 2) g.addElement(e) - c=circle(0,0,1,'red') + c=circle(0, 0, 1, 'red') g.addElement(c) - pd=pathdata(0,-10) + 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) + 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) + 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) + 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() + print((d.toXml())) |