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support groups for export to obj format

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This commit is contained in:
wmayer
2016-07-24 16:16:42 +02:00
parent 66dffafe88
commit 217d4897fe
6 changed files with 107 additions and 14 deletions
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29
src/Mod/Mesh/App/Core/MeshIO.cpp
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@@ -39,6 +39,7 @@
#include <Base/Sequencer.h>
#include <Base/Stream.h>
#include <Base/Placement.h>
#include <Base/Tools.h>
#include <zipios++/gzipoutputstream.h>
#include <cmath>
@@ -338,7 +339,7 @@ bool MeshInput::LoadOBJ (std::istream &rstrIn)
}
else if (boost::regex_match(line.c_str(), what, rx_g)) {
new_segment = true;
_groupNames.push_back(what[1].first);
_groupNames.push_back(Base::Tools::escapedUnicodeToUtf8(what[1].first));
}
else if (boost::regex_match(line.c_str(), what, rx_f3)) {
// starts a new segment
@@ -1897,12 +1898,26 @@ bool MeshOutput::SaveOBJ (std::ostream &out) const
seq.next(true); // allow to cancel
}
// facet indices (no texture and normal indices)
for (MeshFacetArray::_TConstIterator it = rFacets.begin(); it != rFacets.end(); ++it) {
out << "f " << it->_aulPoints[0]+1 << " "
<< it->_aulPoints[1]+1 << " "
<< it->_aulPoints[2]+1 << std::endl;
seq.next(true); // allow to cancel
if (_groups.empty()) {
// facet indices (no texture and normal indices)
for (MeshFacetArray::_TConstIterator it = rFacets.begin(); it != rFacets.end(); ++it) {
out << "f " << it->_aulPoints[0]+1 << " "
<< it->_aulPoints[1]+1 << " "
<< it->_aulPoints[2]+1 << std::endl;
seq.next(true); // allow to cancel
}
}
else {
for (std::vector<Group>::const_iterator gt = _groups.begin(); gt != _groups.end(); ++gt) {
out << "g " << Base::Tools::escapedUnicodeFromUtf8(gt->name.c_str()) << std::endl;
for (std::vector<unsigned long>::const_iterator it = gt->indices.begin(); it != gt->indices.end(); ++it) {
const MeshFacet& f = rFacets[*it];
out << "f " << f._aulPoints[0]+1 << " "
<< f._aulPoints[1]+1 << " "
<< f._aulPoints[2]+1 << std::endl;
seq.next(true); // allow to cancel
}
}
}
return true;