Re: [Mapnik-users] Point Symbolizer mystery

Bruno B Caponi Fri, 04 Nov 2011 03:45:46 -0700

... and the first parameter is a PathExpression:

mapnik2.PointSymbolizer(mapnik2.PathExpression( '/Users/semchie/Documents/GIS/dots/purpledot.png' ) )...

Bruno Caponi

Para: [email protected]
De: Bruno B Caponi <[email protected]>
Enviado por: [email protected]
Data: 04/11/2011 08:26AM
Assunto: Re: [Mapnik-users] Point Symbolizer mystery

Michael,

constructor of PointSymbolizer in Mapnik 2.0 no longer has the parameters "type", "width", "height".

See this page for other changes.
http://trac.mapnik.org/wiki/Mapnik2/Changes

Bruno Caponi

[email protected] escreveu: -----

Para: [email protected]
De: Michael Corey <[email protected]>
Enviado por: [email protected]
Data: 03/11/2011 06:44PM
Assunto: [Mapnik-users] Point Symbolizer mystery

Hi all:

I'm running mapnik2, and doing find, until I try to add a
PointSymbolizer in Python.

dotsymbolizer =
mapnik2.PointSymbolizer('/Users/semchie/Documents/GIS/dots/purpledot.png',
'png', 16, 16)
dotsymbolizer.allow_overlap = True
dotsymbolizer.opacity = 0.5

partnerdotstyle = mapnik2.Rule()
partnerdotstyle.symbols.append(dotsymbolizer)

When I run the script, I get:

Traceback (most recent call last):
   File "mapnikgridtest.py", line 48, in <module>
   dotsymbolizer = mapnik2.PointSymbolizer('/purpledot.png', 'png',
16, 16)
Boost.Python.ArgumentError: Python argument types in
   PointSymbolizer.__init__(PointSymbolizer, str, str, int, int)
did not match C++ signature:
   __init__(_object*,
boost::shared_ptr<std::vector<boost::variant<std::string,
mapnik::attribute, boost::detail::variant::void_,
boost::detail::variant::void_, boost::detail::variant::void_,
boost::detail::variant::void_, boost::detail::variant::void_,
boost::detail::variant::void_, boost::detail::variant::void_,
boost::detail::variant::void_, boost::detail::variant::void_,
boost::detail::variant::void_, boost::detail::variant::void_,
boost::detail::variant::void_, boost::detail::variant::void_,
boost::detail::variant::void_, boost::detail::variant::void_,
boost::detail::variant::void_, boost::detail::variant::void_,
boost::detail::variant::void_>,
std::allocator<boost::variant<std::string, mapnik::attribute,
boost::detail::variant::void_, boost::detail::variant::void_,
boost::detail::variant::void_, boost::detail::variant::void_,
boost::detail::variant::void_, boost::detail::variant::void_,
boost::detail::variant::void_, boost::detail::variant::void_,
boost::detail::variant::void_, boost::detail::variant::void_,
boost::detail::variant::void_, boost::detail::variant::void_,
boost::detail::variant::void_, boost::detail::variant::void_,
boost::detail::variant::void_, boost::detail::variant::void_,
boost::detail::variant::void_, boost::detail::variant::void_> > > >)
   __init__(_object*)

Am I missing something silly?

Thanks,

--
Michael Corey
Digital Innovations Editor
Center for Investigative Reporting
510.809.3178

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Re: [Mapnik-users] Point Symbolizer mystery

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