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Re: WebMathematica and SVG graphics

  • To: mathgroup at smc.vnet.net
  • Subject: [mg117998] Re: WebMathematica and SVG graphics
  • From: Alexey <lehin.p at gmail.com>
  • Date: Fri, 8 Apr 2011 04:13:08 -0400 (EDT)
  • References: <ink9ai$g9q$1@smc.vnet.net>

Eduardo <eduzea at gmail.com> wrote:
> Thanks to all for the useful replies.
>
> Does anyone know if this behavior Alexey describes (Mathematica connecting to  http://www.w3.org/to evaluate XML`SVG`GraphicsToSymbolicSVG or ImportString[..., "XML"]), can be modified or configured?
>
> Thanks and regards,
>
> Eduardo.

For preventing Internet requests you can use option "ReadDTD"->False
though the result will be slightly different:

In[1]:=
xml1=ImportString[ExportString[Plot[x^4,{x,0,1}],"SVG"],"XML",
    "ReadDTD"->False];
xml2=ImportString[ExportString[Plot[x^4,{x,0,1}],"SVG"],"XML"];
xml1===xml2
Complement[xml2,xml1]
AppendTo[xml1,"Valid"->True]===xml2

Out[3]= False
Out[4]= XMLObject[Document][Valid->True]
Out[5]= True

Interestingly, there is another related option in the Documentation:
"AllowRemoteDTDAccess". But with this option ImportString fails:

ImportString[ExportString[Plot[x^4,{x,0,1}],"SVG"],"XML",
    "AllowRemoteDTDAccess"->False];
XML`Parser`XMLGetString::prserr: StyleBox[RuntimeException:Could not
open
DTD file'http://www.w3.org/Graphics/SVG/1.1/DTD/svg11.dtd'
atLine:1Character:99,MT]

Both these options absent in Mathematica 5.2.

Alexey


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