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added support for transformations

This commit is contained in:
granzuglia 2006-11-05 19:09:04 +00:00
parent 2f79d55207
commit 1510076b65
2 changed files with 81 additions and 6 deletions
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28
wrap/io_trimesh/import_dae.h
View File

@ -14,7 +14,8 @@ namespace io {
{
private:
static int LoadMesh(OpenMeshType& m,InfoDAE* info,const QDomNode& geo)
static int LoadMesh(OpenMeshType& m,InfoDAE* info,const QDomNode& geo,const vcg::Matrix44f& t)
{
if (isThereTag(geo,"mesh"))
{
@ -61,12 +62,20 @@ namespace io {
for(size_t vv = offset;vv < m.vert.size();++vv)
{
assert((ii * 3 < geosrcposarr_size) && (ii * 3 + 1 < geosrcposarr_size) && (ii * 3 + 2 < geosrcposarr_size));
m.vert[vv].P() = vcg::Point3f(geosrcposarr[ii * 3].toFloat(),geosrcposarr[ii * 3 + 1].toFloat(),geosrcposarr[ii * 3 + 2].toFloat());
vcg::Point4f tmp = t * vcg::Point4f(geosrcposarr[ii * 3].toFloat(),geosrcposarr[ii * 3 + 1].toFloat(),geosrcposarr[ii * 3 + 2].toFloat(),1.0f);
m.vert[vv].P() = vcg::Point3f(tmp.X(),tmp.Y(),tmp.Z());
if (!srcnodenorm.isNull())
{
assert((ii * 3 < geosrcvertnorm.size()) && (ii * 3 + 1 < geosrcvertnorm.size()) && (ii * 3 + 2 < geosrcvertnorm.size()));
m.vert[vv].N() = vcg::Point3f(geosrcvertnorm[ii * 3].toFloat(),geosrcvertnorm[ii * 3 + 1].toFloat(),geosrcvertnorm[ii * 3 + 2].toFloat());
vcg::Matrix44f intr44 = vcg::Transpose(vcg::Inverse(t));
Matrix33f intr33;
for(unsigned int rr = 0; rr < 2; ++rr)
{
for(unsigned int cc = 0;cc < 2;++cc)
intr33[rr][cc] = intr44[rr][cc];
}
m.vert[vv].N() = (intr33 * vcg::Point3f(geosrcvertnorm[ii * 3].toFloat(),geosrcvertnorm[ii * 3 + 1].toFloat(),geosrcvertnorm[ii * 3 + 2].toFloat())).Normalize();
}
/*if (!srcnodecolor.isNull())
@ -288,20 +297,25 @@ namespace io {
int geoinst_size = geoinst.size();
if (geoinst_size != 0)
{
geoinst_found |= true;
QDomNodeList& geolib = info->doc->elementsByTagName("library_geometries");
int geolib_size = geolib.size();
assert(geolib_size == 1);
//!!!!!!!!!!!!!!!!!here will be the code for geometry transformations!!!!!!!!!!!!!!!!!!!!!!
for(int geoinst_ind = 0;geoinst_ind < geoinst_size;++geoinst_ind)
{
QString geo_url;
referenceToANodeAttribute(geoinst.at(geoinst_ind),"url",geo_url);
QDomNode geo = findNodeBySpecificAttributeValue(geolib.at(0),"geometry","id",geo_url);
if (geo.isNull())
return E_UNREFERENCEBLEDCOLLADAATTRIBUTE;
problem |= LoadMesh(m,info,geo);
vcg::Matrix44f tr;
tr.SetIdentity();
TransfMatrix(visscn,geoinst.at(geoinst_ind),tr);
problem |= LoadMesh(m,info,geo,tr);
if (problem) return problem;
}
}
@ -319,7 +333,9 @@ namespace io {
int problem = 0;
for(int chd = 0;chd < geochild_size;++chd)
{
problem |= LoadMesh(m,info,geochild.at(chd));
vcg::Matrix44f tmp;
tmp.SetIdentity();
problem |= LoadMesh(m,info,geochild.at(chd),tmp);
if (problem) return problem;
}
}

59
wrap/io_trimesh/util_dae.h
View File

@ -193,6 +193,65 @@ namespace io {
}
return true;
}
static void ParseRotationMatrix(vcg::Matrix44f& m,const std::vector<QDomNode>& t)
{
vcg::Matrix44f tmp;
tmp.SetIdentity();
for(unsigned int ii = 0;ii < t.size();++ii)
{
QString rt = t[ii].firstChild().nodeValue();
QStringList rtl = rt.split(" ");
if (rtl.last() == "") rtl.removeLast();
assert(rtl.size() == 4);
tmp.SetRotate(rtl.at(3).toFloat(),vcg::Point3f(rtl.at(0).toFloat(),rtl.at(1).toFloat(),rtl.at(2).toFloat()));
tmp *= tmp;
}
m = m * tmp;
}
static void AddTranslation(vcg::Matrix44f& m,const QDomNode& t)
{
QDomNode tr = t.firstChild();
QString coord = tr.nodeValue();
QStringList coordlist = coord.split(" ");
if (coordlist.last() == "")
coordlist.removeLast();
assert(coordlist.size() == 3);
m[0][0] = 1.0f;
m[1][1] = 1.0f;
m[2][2] = 1.0f;
m[3][3] = 1.0f;
m[0][3] = coordlist.at(0).toFloat();
m[1][3] = coordlist.at(1).toFloat();
m[2][3] = coordlist.at(2).toFloat();
}
static void TransfMatrix(const QDomNode& parentnode,const QDomNode& presentnode,vcg::Matrix44f& m)
{
if (presentnode == parentnode) return;
else
{
QDomNode par = presentnode.parentNode();
std::vector<QDomNode> rotlist;
QDomNode trans;
for(int ch = 0;ch < par.childNodes().size();++ch)
{
if (par.childNodes().at(ch).nodeName() == "rotate")
rotlist.push_back(par.childNodes().at(ch));
else if (par.childNodes().at(ch).nodeName() == "translate")
{
trans = par.childNodes().at(ch);
}
}
vcg::Matrix44f tmp;
tmp.SetIdentity();
if (!trans.isNull()) AddTranslation(tmp,trans);
ParseRotationMatrix(tmp,rotlist);
m = m * tmp;
TransfMatrix(parentnode,par,m);
}
}
};
}
}