The below error is resulting from missing CFLAGS that you need to pass when compiling your own application against mapnik.
See http://www.mail-archive.com/[email protected]/msg02197.html It would be great if you would test which of these make a different and create a wiki page on your findings. Dane On Jun 28, 2010, at 3:38 AM, Thomas Walter wrote: > Btw - the programm crashes during loading the map as soon as I have declared > a > parameters object. It does not matter if I use this parameters object or not. > > > datasource_cache::instance()->register_datasources > ("/usr/lib/mapnik/0.7/input/"); > freetype_engine::register_font > ("/usr/share/fonts/truetype/ttf-dejavu/DejaVuSans.ttf"); > > Map map (tdim,tdim); > load_map(map,"/home/tom/Desktop/test2.xml"); > > parameters p; > > for(int count=0; count<map.layerCount(); count++) > { > qDebug() << "layer name = " << map.getLayer(count).name().c_str(); > } > > > The error message: > > REV_HMI: /usr/include/boost/variant/detail/visitation_impl.hpp:203: typename > Visitor::result_type boost::detail::variant::visitation_impl(int, int, > Visitor&, VPCV, mpl_::true_, NBF, W*, S*) [with W = > boost::detail::variant::visitation_impl(int, int, Visitor&, VoidPtrCV, > mpl_::false_, NoBackupFlag, Which*, step0*) [with Which = boost::variant<T0, > T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13, T14, T15, T16, T17, > T18, T19>::internal_apply_visitor_impl(int, int, Visitor&, VoidPtrCV) [with > Visitor = boost::detail::variant::copy_into, VoidPtrCV = const void*, T0_ = > int, T1 = double, T2 = std::basic_string<char, std::char_traits<char>, > std::allocator<char> >, T3 = boost::detail::variant::void_, T4 = > boost::detail::variant::void_, T5 = boost::detail::variant::void_, T6 = > boost::detail::variant::void_, T7 = boost::detail::variant::void_, T8 = > boost::detail::variant::void_, T9 = boost::detail::variant::void_, T10 = > boost::detail::variant::void_, T11 = boost::detail::variant::void_, T12 = > boost::detail::variant::void_, T13 = boost::detail::variant::void_, T14 = > boost::detail::variant::void_, T15 = boost::detail::variant::void_, T16 = > boost::detail::variant::void_, T17 = boost::detail::variant::void_, T18 = > boost::detail::variant::void_, T19 = > boost::detail::variant::void_]::first_which, step0 = boost::variant<T0, T1, > T2, > T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13, T14, T15, T16, T17, T18, > T19>::internal_apply_visitor_impl(int, int, Visitor&, VoidPtrCV) [with > Visitor > = boost::detail::variant::copy_into, VoidPtrCV = const void*, T0_ = int, T1 = > double, T2 = std::basic_string<char, std::char_traits<char>, > std::allocator<char> >, T3 = boost::detail::variant::void_, T4 = > boost::detail::variant::void_, T5 = boost::detail::variant::void_, T6 = > boost::detail::variant::void_, T7 = boost::detail::variant::void_, T8 = > boost::detail::variant::void_, T9 = boost::detail::variant::void_, T10 = > boost::detail::variant::void_, T11 = boost::detail::variant::void_, T12 = > boost::detail::variant::void_, T13 = boost::detail::variant::void_, T14 = > boost::detail::variant::void_, T15 = boost::detail::variant::void_, T16 = > boost::detail::variant::void_, T17 = boost::detail::variant::void_, T18 = > boost::detail::variant::void_, T19 = > boost::detail::variant::void_]::first_step, Visitor = > boost::detail::variant::copy_into, VoidPtrCV = const void*, NoBackupFlag = > boost::variant<int, double, std::basic_string<char, std::char_traits<char>, > std::allocator<char> >, 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_>::has_fallback_type_]::next_which, S = > boost::detail::variant::visitation_impl(int, int, Visitor&, VoidPtrCV, > mpl_::false_, NoBackupFlag, Which*, step0*) [with Which = boost::variant<T0, > T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13, T14, T15, T16, T17, > T18, T19>::internal_apply_visitor_impl(int, int, Visitor&, VoidPtrCV) [with > Visitor = boost::detail::variant::copy_into, VoidPtrCV = const void*, T0_ = > int, T1 = double, T2 = std::basic_string<char, std::char_traits<char>, > std::allocator<char> >, T3 = boost::detail::variant::void_, T4 = > boost::detail::variant::void_, T5 = boost::detail::variant::void_, T6 = > boost::detail::variant::void_, T7 = boost::detail::variant::void_, T8 = > boost::detail::variant::void_, T9 = boost::detail::variant::void_, T10 = > boost::detail::variant::void_, T11 = boost::detail::variant::void_, T12 = > boost::detail::variant::void_, T13 = boost::detail::variant::void_, T14 = > boost::detail::variant::void_, T15 = boost::detail::variant::void_, T16 = > boost::detail::variant::void_, T17 = boost::detail::variant::void_, T18 = > boost::detail::variant::void_, T19 = > boost::detail::variant::void_]::first_which, step0 = boost::variant<T0, T1, > T2, > T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13, T14, T15, T16, T17, T18, > T19>::internal_apply_visitor_impl(int, int, Visitor&, VoidPtrCV) [with > Visitor > = boost::detail::variant::copy_into, VoidPtrCV = const void*, T0_ = int, T1 = > double, T2 = std::basic_string<char, std::char_traits<char>, > std::allocator<char> >, T3 = boost::detail::variant::void_, T4 = > boost::detail::variant::void_, T5 = boost::detail::variant::void_, T6 = > boost::detail::variant::void_, T7 = boost::detail::variant::void_, T8 = > boost::detail::variant::void_, T9 = boost::detail::variant::void_, T10 = > boost::detail::variant::void_, T11 = boost::detail::variant::void_, T12 = > boost::detail::variant::void_, T13 = boost::detail::variant::void_, T14 = > boost::detail::variant::void_, T15 = boost::detail::variant::void_, T16 = > boost::detail::variant::void_, T17 = boost::detail::variant::void_, T18 = > boost::detail::variant::void_, T19 = > boost::detail::variant::void_]::first_step, Visitor = > boost::detail::variant::copy_into, VoidPtrCV = const void*, NoBackupFlag = > boost::variant<int, double, std::basic_string<char, std::char_traits<char>, > std::allocator<char> >, 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_>::has_fallback_type_]::next_step, Visitor = > boost::detail::variant::copy_into, VPCV = const void*, NBF = > boost::variant<int, double, std::basic_string<char, std::char_traits<char>, > std::allocator<char> >, 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_>::has_fallback_type_]: Assertion `false' failed. > > > > And the debugging points to this: "BOOST_ASSERT(false);" > > /////////////////////////////////////////////////////////////////////////////// > // (detail) function template visitation_impl > // > // Invokes the given visitor on the type in the given variant storage. > // > > template < > typename W, typename S > , typename Visitor, typename VPCV > , typename NBF >> > inline > BOOST_VARIANT_AUX_GENERIC_RESULT_TYPE(typename Visitor::result_type) > visitation_impl( > int, int, Visitor&, VPCV > , mpl::true_ // is_apply_visitor_unrolled > , NBF, W* = 0, S* = 0 > ) > { > // should never be here at runtime: > BOOST_ASSERT(false); > typedef typename Visitor::result_type result_type; > return ::boost::detail::variant::forced_return< result_type >(); > } > > > Any idea what's happening here? > > Cheers, Tom > > Am Montag 28 Juni 2010, um 15:44:05 schrieb Thomas Walter: >> Hi Dane >> >> The rendering with nik2img seems to work correctly: >> $ nik2img.py test2.xml test2.png >> generates this image: >> http://img251.imageshack.us/img251/470/test2sz.png >> >> The interesting thing is that with my program I get some of the street >> names in the map so it seems to load the osm file and to read it. And in >> fact it also takes about 2 seconds to render it (256x256 pixels on an dual >> core pentium 2Ghz). >> >> So imho the problem is neither the xml file nor the osm file nor the mapnik >> installation. But maybe I did not select the correct envelope? >> Currently I am using this: >> map.zoom_all(); >> >> When selecting another envelope like this >> Envelope<double> bbox(50.9,-1.45,51.0,-1.35); >> map.zoomToBox(bbox); >> it renders only the background. Btw, the coordinates are taken from the >> osm file: <bound box='50.9,-1.45,51.0,-1.35' >> origin='http://www.openstreetmap.org/api/0.5' /> >> >> Could this be the problem? If it is, how can I select the correct bbox? >> >> Cheers, Tom >> >> Am Montag 28 Juni 2010, um 10:18:34 schrieb Dane Springmeyer: >>> Thomas. Hard to say what is wrong. I'm traveling so I cannot currently >>> dig up that osm plugin example map. Can you render the map using >>> nik2img and compare the results? >>> >>> Dane >>> >>> --- \o/ --- >>> Sent from my phone >>> >>> On Jun 25, 2010, at 12:24 PM, Thomas Walter <[email protected]> >>> >>> wrote: >>>> Hi there >>>> >>>> I am trying to generate map tiles out of an osm-file, but for some >>>> reason >>>> mapnik has problems with the rendering. Often it generates only the >>>> background >>>> and if it renders more then it is only some random stuff. >>>> >>>> When I try to render the test2.xml from >>>> http://trac.mapnik.org/browser/trunk/plugins/input/osm >>>> it generates this tile: >>>> http://img145.imageshack.us/img145/8569/mapnikerror.png >>>> >>>> I am using mapnik 0.7.0 from the ubuntu repositories. >>>> >>>> The relevant source code (mainly taken from the examples) is: >>>> datasource_cache::instance()->register_datasources >>>> >>>> ("/usr/lib/mapnik/0.7/input/"); >>>> >>>> freetype_engine::register_font >>>> >>>> ("/usr/share/fonts/truetype/ttf-dejavu/DejaVuSans.ttf"); >>>> >>>> Map map (tdim,tdim); >>>> load_map(map,"/home/tom/Desktop/test2.xml"); >>>> map.zoom_all(); >>>> >>>> Image32 buf(map.getWidth(), map.getHeight()); >>>> agg_renderer<Image32> ren(map,buf); >>>> ren.apply(); >>>> >>>> QImage image((uchar*)buf.raw_data(),map.getWidth(), >>>> >>>> map.getHeight(),QImage::Format_ARGB32); >>>> >>>> Cheers >>>> Tom >>>> _______________________________________________ >>>> Mapnik-users mailing list >>>> [email protected] >>>> https://lists.berlios.de/mailman/listinfo/mapnik-users > > _______________________________________________ > Mapnik-users mailing list > [email protected] > https://lists.berlios.de/mailman/listinfo/mapnik-users _______________________________________________ Mapnik-users mailing list [email protected] https://lists.berlios.de/mailman/listinfo/mapnik-users
