|
From: Paolo C. <pao...@is...> - 2008-03-18 06:19:20
|
If you want to save the texture coords of a meshlab mesh compacted in a per-vertex form (and therefore unifying the duplicate tex coords) look at the obj exporter (at line 270 ) ; it does exactly the same job. it simply use a std::map<vcg::TexCoord2<float>,int> CoordIndexTexture; to transform each tex coord into a index. Much simpler than using topology. p. skunkwerk wrote: > is there any way to get the position (index) of a face in the m.faces > vector without an iterator? > I am asking because the way i'm testing for repeated uv coords relies > on testing adjacent faces, with the adjacent face declared like: > CFaceO* adj = fit->FFp(y); //where fit is an iterator for the current face > > and if the test for identical uv coords between the current face and > an adjacent face is true, i'd like to know what the position of that > adjacent face is in the m.faces vector so I can copy it's uv coord > index that i've stored in a temporary data structure. > > thanks, > imran > > On Wed, Mar 5, 2008 at 1:46 PM, skunkwerk <sku...@gm... > <mailto:sku...@gm...>> wrote: > > i was looking at the saved collada file from meshlab and noticed > that texture coords were being repeated (as there are two coords > per vertex, and the save function is generating them by iterating > through faces-which may have the same vertices). so i wanted to > change the floatarraytag in colladaformat.h to generate the tex > coords per vertex (thus maintaining uniqueness) rather than by > face, but i couldn't figure out how to do it: > > there is 'vit' which is a vertex vector iterator, so i thought i > could do QString::number(vit->T().U()) or something but that > didn't work. > the face vector iterator currently does: > QString::number(fit->cWT(ii).U()) > > how should i do this? > > thanks, > imran > > > ------------------------------------------------------------------------ > > ------------------------------------------------------------------------- > This SF.net email is sponsored by: Microsoft > Defy all challenges. Microsoft(R) Visual Studio 2008. > http://clk.atdmt.com/MRT/go/vse0120000070mrt/direct/01/ > > ------------------------------------------------------------------------ > > _______________________________________________ > Meshlab-devel mailing list > Mes...@li... > https://lists.sourceforge.net/lists/listinfo/meshlab-devel > -- Paolo Cignoni -- Senior Researcher Visual Computing Laboratory - ISTI - CNR http://vcg.isti.cnr.it/~cignoni ISTI - CNR Via Moruzzi 1, 56124 Pisa ITALY |
