Ok, download the wikimedia SVG and open it with a text editor. If you look
for "Ulster, NY" you will see it enclosed in a path node. The contents of
the "d" attribute is what you need to parse/extract to pass as parameter to
RTSVGPath>>path:
<path
style="font-size:12px;fill:#d0d0d0;fill-opacity:1;fill-rule:nonzero;stroke:#000000;stroke-opacity:1;stroke-width:0.1;stroke-miterlimit:4;stroke-dasharray:none;stroke-linecap:butt;marker-start:none;stroke-linejoin:bevel"
d="M 501.96598,97.8 L 502.15198,100.009 L 502.68298,101.739 L
502.88598,102.153 L 503.20498,104.028 L 502.29498,104.366 L
501.61098,104.502 L 501.02498,104.483 L 500.32998,104.231 L
499.33398,104.921 L 498.91498,104.299 L 497.86898,103.844 L
496.94598,103.415 L 497.13498,102.933 L 497.50398,102.086 L
497.69798,101.505 L 495.56698,100.824 L 494.24598,100.423 L
496.85998,97.791 L 498.36098,98.174 L 499.08798,98.084 L 500.56998,97.894 L
500.65098,96.89 L 501.06998,96.754 L 501.99798,97.146 L 501.96598,97.8"
id="36111"
inkscape:label="Ulster, NY" />
I have tried using the Roassal2 from the Configuration Browser in Pharo 3.0.
Cheers,
Hernán
2014-11-21 22:53 GMT-03:00 Offray Vladimir Luna Cárdenas <off...@riseup.net>
:
> Hi Hernan,
>
> Thanks for your answer. I got an error which says "Error: Reading a number
> failed: a digit between 0 and 9 expected" and "element" of your example is
> selected. I think that I'm not understanding well how to connect the
> downloaded file (in fact I have not downloaded anything) to the part where
> you render the svg and I don't see anything in your example which links
> them. Whats the thing I'm missing?
>
> Thanks for your help. Hopefully, tomorrow we can show maps for new
> territories in Roassal.
>
> Cheers,
>
> Offray
>
> El 21/11/14 a las #4, Hernán Morales Durand escribió:
>
>>
>>
>> 2014-11-18 10:30 GMT-03:00 Offray Vladimir Luna Cárdenas <
>> off...@riseup.net
>> <mailto:off...@riseup.net>>:
>>
>> Hi,
>>
>> This Thursday and Saturday we will have a small workshop on data
>> storytelling and I would like to present Pharo/Roassal to the people
>> there
>> as a tool for creating and sharing visualizations.
>>
>> My idea is to use Playgrounds to make agile visualization and then
>> share
>> them using cloud sharing at stfx and etherpads.
>> The maps I would like to make are similar to the ones that have
>> colored
>> countries [1][2], but using internal country geopolitical divisions.
>> For the
>> case of Colombia I would like to use the ones of [3], specifically
>> something
>> like [4] and use the same syntax of RTMetricMap inside the country.
>>
>> [1] http://bit.ly/1yiedrE
>> [2] http://bit.ly/1xTAQV0
>> [3] https://commons.wikimedia.org/__wiki/User:Shadowxfox/Maps#__
>> Colombia
>> <https://commons.wikimedia.org/wiki/User:Shadowxfox/Maps#Colombia>
>> [4]
>> https://commons.wikimedia.org/__wiki/File:Colombia___
>> departamentos_otros.svg
>>
>> <https://commons.wikimedia.org/wiki/File:Colombia_
>> departamentos_otros.svg>
>>
>> So my question is:
>>
>> - There is any way to upload this SGV maps and treat them as the maps
>> already in RTMetricMap, telling the names of the internal
>> geopolitical
>> divisions inside a Country and how to color them according to a
>> value and
>> make them zoomable?
>>
>> - Where can I start to look to support this feature?
>>
>>
>> SVG is basically XML, so you can parse it like this:
>>
>> | xmlTree |
>> xmlTree := (XMLDOMParser parseFileNamed: 'Argentina.svg') firstNode.
>> xmlTree
>>
>> The coordinates of a map are in the SVG path description, and you can add
>> them
>> separately. For example if you download this file
>> http://commons.wikimedia.org/wiki/File:USA_Counties_with_
>> FIPS_and_names.svg and
>> take the node with "Ulster, NY" you can render it this way:
>>
>> | view svg |
>> view := RTView new.
>> svg := (RTSVGPath new
>> path: 'M 501.96598,97.8 L 502.15198,100.009 L 502.68298,101.739 L
>> 502.88598,102.153 L 503.20498,104.028 L 502.29498,104.366 L
>> 501.61098,104.502 L
>> 501.02498,104.483 L 500.32998,104.231 L 499.33398,104.921 L
>> 498.91498,104.299 L
>> 497.86898,103.844 L 496.94598,103.415 L 497.13498,102.933 L
>> 497.50398,102.086 L
>> 497.69798,101.505 L 495.56698,100.824 L 494.24598,100.423 L
>> 496.85998,97.791 L
>> 498.36098,98.174 L 499.08798,98.084 L 500.56998,97.894 L 500.65098,96.89 L
>> 501.06998,96.754 L 501.99798,97.146 L 501.96598,97.8';
>> fillColor: (Color r: 0.612 g: 0.488 b: 0.3 alpha: 1.0);
>> scale: 5) element.http://commons.wikimedia.org/wiki/File:USA_
>> Counties_with_FIPS_and_names.svg
>> view add: svg.
>> view open
>>
>> There should be an easier way like using an SVG importer for Roassal, but
>> that's
>> all I have for now.
>>
>> Cheers,
>>
>> Hernán
>>
>>
>>
>
>
