[R] reading & understanding SVG?

[Spencer Graves]

       Awesome.


       Are there things one might like to do in R reading them directly 
as svg that aren't so easy after converting to another format like png?


       Thanks again,
       Spencer


p.s.  To confirm, I received the three files you sent offline, converted 
then to png using GIMP (already installed), and plotted one using 
rasterImageAdj (recently added to Ecfun on R-Forge; this calls 
rasterImage{graphics} after reducing either the x or y space to 
eliminate distortion.  This makes it easier to use if you don't want 
distortion in image from rasterImage.)


On 4/21/2014 8:19 AM, Boris Steipe wrote:
> Indeed you don't need R. This is accomplished in two minutes with the excellent, free, and open software inkscape. But before I type more and since I have it open anyway, I'll just send you the three images off-list.
>
> B.
>
>
>
>
> On 2014-04-21, at 10:43 AM, Spencer Graves wrote:
>
>> p.s.  I don't need to use R for this, though I'd prefer to stay with
>> something that's free, open-source software.  I tried GIMP, but couldn't
>> see how to access the layers.
>>
>>
>> Hi, Peter:
>>
>>
>> On 4/21/2014 3:34 AM, Peter Crowther wrote:
>>> Spencer, what "components" do you want to extract?  Do the SVG files
>>> have a reasonably well-defined structure?  I've done a fair amount
>>> with SVG and may be able to help.
>>
>>        Thanks.  I should have been more specific:  I'd like to try to
>> extract into 3 separate files the weapons of mass destruction symbols
>> from the "WMD_world_map.svg" image in the Wiikipedia article on "Weapons
>> of mass destruction"
>> (https://upload.wikimedia.org/wikipedia/commons/1/1d/WMD_world_map.svg).
>>
>>
>>        I've opened it in Emacs enough to see that it's a structured text
>> file consistent with what little I know about XML.  It looks to me like
>> a list, but without convenient names for the list components.
>>
>>
>>        Thanks again,
>>        Spencer
>>
>>
>> p.s.  I found the biohazard symbol by itself
>> (https://upload.wikimedia.org/wikipedia/commons/c/c0/Biohazard_symbol.svg),
>> but I didn't find the radioactive and skull-and-crossbones symbols in
>> exactly that form.  (I didn't look seriously beyond Wikimedia commons,
>> because I'm making a video, and I want something I can release under the
>> Creative Commons Attribution-Share Alike license.
>>
>>> - Peter
>>>
>>>
>>> On 21 April 2014 08:30, Spencer Graves
>>> <spencer.graves at structuremonitoring.com
>>> <mailto:spencer.graves at structuremonitoring.com>> wrote:
>>>
>>>     Hello:
>>>
>>>
>>>           What would you suggest I use to read and manipulate an SVG file?
>>>
>>>
>>>           I'd like to extract components of an svg file.  I see it's
>>>     XML, but I have very little experience with either SVG or XML.
>>>      I've tried GIMP and findFn{sos} without finding a clear
>>>     suggestion of where to start.
>>>
>>>
>>>           Thanks,
>>>           Spencer
>>>
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