Google for png vs. svg.
png is a raster graphics format, svg is a vector graphics format.
Which one is the right one to used depends totally on the purpose.
B.
On 2014-04-21, at 11:49 AM, Spencer Graves wrote:
> 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.gra...@structuremonitoring.com
>>>> <mailto:spencer.gra...@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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>
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