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From: skunkwerk <sku...@gm...> - 2008-08-18 01:43:07
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i'm still struggling with how to add and delete faces... I no longer get the previous assertion error, but am now getting a segfault whenever I do: vcg::tri::Allocator<CMeshO>::Addvertices(m,2); vcg::tri::Allocator<CMeshO>::AddFaces(m,1); when I comment out those two lines, I don't get any crashes... what am I doing wrong? thanks, imran On Sat, Aug 16, 2008 at 11:07 AM, skunkwerk <sku...@gm...> wrote: > i managed to track down the error once the compiler gave me the correct > line... > > now i'm getting this assertion failure though: > meshlab: ../../../../vcglib/vcg/complex/trimesh/allocate.h:513: static void > vcg::tri::Allocator<AllocateMeshType>::CompactFaceVector(AllocateMeshType&) > [with AllocateMeshType = CMeshO]: Assertion `(int)pos==m.fn' failed. > > this is how i'm adding/deleting faces: > vcg::tri::Allocator<CMeshO>::AddFaces(m,1); > vcg::tri::Allocator<CMeshO>::DeleteFace(m,fp);//delete old face, leave > vertices > vcg::tri::Allocator<CMeshO>::CompactFaceVector(m);//compact faces to remove > those marked as deleted > > am i doing something wrong? > > thanks, > imran > > > On Thu, Aug 14, 2008 at 4:58 PM, skunkwerk <sku...@gm...> wrote: > >> thanks Paolo, >> i had to write 200 lines of code to get the face splitting working - >> and it almost compiles, except for these 3 errors: >> >> colladaio.cpp:264: instantiated from here >> /usr/include/c++/4.3/bits/vector.tcc:293: error: array must be initialized >> with a brace-enclosed initializer >> /usr/include/c++/4.3/bits/vector.tcc:299: error: invalid array assignment >> /usr/include/c++/4.3/bits/stl_construct.h:88: error: request for member >> '~float [2]' in '* pointer', which is of non-class type 'float [2]'* >> >> *but i have no idea where in the code these errors are coming from, as >> those are all stl things... any suggestions on how to trace this? i'm using >> gcc >> >> OR if someone could tell me how to use the existing code in meshlab, >> that'd be great too >> >> imran >> >> >> On Thu, Aug 14, 2008 at 1:04 AM, Paolo Cignoni <pao...@is... >> > wrote: >> >>> no, at the end. >>> read this page (and referrred subpages too) >>> >>> http://vcg.sourceforge.net/index.php/Tutorial >>> >>> p, >>> >>> skunkwerk wrote: >>> >>> quick question: i was reading 'creating elements' on this wiki page: >>> http://meshlab.sourceforge.net/wiki/index.php/Accessing_the_mesh >>> >>> when you call Allocator<CMeshO>::AddVertices or AddFaces, are >>> vertices/faces added to the front of the vector? >>> because the next line that describes specifying the vertex coordinates, >>> etc. uses a pointer to the front of the vector >>> >>> thanks, >>> imran >>> >>> ------------------------------ >>> >>> ------------------------------------------------------------------------- >>> This SF.Net email is sponsored by the Moblin Your Move Developer's challenge >>> Build the coolest Linux based applications with Moblin SDK & win great prizes >>> Grand prize is a trip for two to an Open Source event anywhere in the worldhttp://moblin-contest.org/redirect.php?banner_id=100&url=/ >>> >>> ------------------------------ >>> >>> _______________________________________________ >>> Meshlab-devel mailing lis...@li...https://lists.sourceforge.net/lists/listinfo/meshlab-devel >>> >>> >>> >>> -- >>> Paolo Cignoni -- Senior Researcher >>> Visual Computing Laboratory - ISTI - CNR http://vcg.isti.cnr.it/~cignoni <http://vcg.isti.cnr.it/%7Ecignoni> >>> >>> ISTI - CNR >>> Via Moruzzi 1, >>> 56124 Pisa >>> ITALY >>> >>> >>> ------------------------------------------------------------------------- >>> This SF.Net email is sponsored by the Moblin Your Move Developer's >>> challenge >>> Build the coolest Linux based applications with Moblin SDK & win great >>> prizes >>> Grand prize is a trip for two to an Open Source event anywhere in the >>> world >>> http://moblin-contest.org/redirect.php?banner_id=100&url=/ >>> _______________________________________________ >>> Meshlab-devel mailing list >>> Mes...@li... >>> https://lists.sourceforge.net/lists/listinfo/meshlab-devel >>> >>> >> > |
