void FaceSpatializeIndexed<BasicTraits>::CategoryGeneral::addData (OpenSGFaceBase<OpenSGTraits>* node, const FaceIterator& face)
{
u32 offsetSize = m_offset.size();
CategoryColor::addData(node, face);
if (m_hasTex) {
if (offsetSize < m_offset.size()) {
m_offsetIt->second.tex1 = m_texCoord->size();
GeoTexCoords2f::StoredFieldType* t = m_texCoord->getFieldPtr();
GeoTexCoordsPtr faceT = m_original.getTexCoords();
for (u32 k=0; k<faceT->getSize(); ++k) {
t->addValue(faceT->getValue(k));
}
}
// set indices for TexCoords
if (face.getLength() == 3) {
u32 i = m_quadOffset - 3*m_indexStride + m_indexOffset.tex1;
for (u32 k=0; k<3; ++k) {
m_index->setValue(face.getTexCoordsIndex(k)+m_offsetIt->second.tex1, i);
assert(face.getTexCoordsIndex(k)+m_offsetIt->second.tex1 < m_texCoord->size());
i += m_indexStride;
}
} else {
u32 i = m_index->size() - 4*m_indexStride + m_indexOffset.tex1;
for (u32 k=0; k<4; ++k) {
m_index->setValue(face.getTexCoordsIndex(k)+m_offsetIt->second.tex1, i);
assert(face.getTexCoordsIndex(k)+m_offsetIt->second.tex1 < m_texCoord->size());
i += m_indexStride;
}
}
}
}
void FaceSpatializeIndexed<BasicTraits>::CategoryColor::addData (OpenSGFaceBase<OpenSGTraits>* node,
const FaceIterator& face)
{
u32 offsetSize = m_offset.size();
CategoryRaw::addData(node, face);
if (m_hasColor) {
if (offsetSize < m_offset.size()) {
m_offsetIt->second.color = m_color->size();
GeoColors3f::StoredFieldType* c = m_color->getFieldPtr();
GeoColorsPtr faceC = m_original.getColors();
for (u32 k=0; k<faceC->getSize(); ++k) {
c->addValue(faceC->getValue(k));
}
}
// set indices for colors
if (face.getLength() == 3) {
u32 i = m_quadOffset - 3*m_indexStride + m_indexOffset.color;
for (u32 k=0; k<3; ++k) {
m_index->setValue(face.getColorIndex(k)+m_offsetIt->second.color, i);
assert(face.getColorIndex(k)+m_offsetIt->second.color < m_color->size());
i += m_indexStride;
}
} else {
u32 i = m_index->size() - 4*m_indexStride + m_indexOffset.color;
for (u32 k=0; k<4; ++k) {
m_index->setValue(face.getColorIndex(k)+m_offsetIt->second.color, i);
assert(face.getColorIndex(k)+m_offsetIt->second.color < m_color->size());
i += m_indexStride;
}
}
}
}
void FaceSpatializeIndexed<BasicTraits>::CategoryRaw::addData (OpenSGFaceBase<OpenSGTraits>* node, const FaceIterator& face)
{
GeoPositions3f::StoredFieldType* p = m_coord->getFieldPtr();
GeoNormals3f::StoredFieldType* n = m_normal->getFieldPtr();
//GeoIndicesUI32::StoredFieldType* i = m_index->getFieldPtr();
// find offset of positions and normals in the new geometry
u32 i, k;
m_offsetIt = m_offset.find(face.getGeometry());
if (m_offsetIt == m_offset.end()) {
// insert new offsets entry into map
HashMapPair offsetPair =
m_offset.insert(HashMap::value_type(face.getGeometry(), quad()));
m_offsetIt = offsetPair.first;
m_offsetIt->second.position = m_coord->size();
GeoPositionsPtr faceP = m_original.getPositions();
addRefCP(faceP);
for (k=0; k<faceP->getSize(); ++k) {
p->addValue(faceP->getValue(k));
}
if (m_hasNormal) {
m_offsetIt->second.normal = m_normal->size();
GeoNormalsPtr faceN = m_original.getNormals();
addRefCP(faceN);
for (k=0; k<faceN->getSize(); ++k) {
n->addValue(faceN->getValue(k));
}
subRefCP(faceN);
}
subRefCP(faceP);
}
// insert indices
if (face.getLength() == 3) {
for (k=0; k<3; ++k) {
m_index->insertValue(face.getPositionIndex(k)+m_offsetIt->second.position, m_quadOffset++);
i = 1;
if (m_hasNormal) {
m_index->insertValue(face.getNormalIndex(k)+m_offsetIt->second.normal, m_quadOffset++);
++i;
}
for (; i<m_indexStride; ++i) {
m_index->insertValue(0, m_quadOffset++);
}
}
} else {
for (k=0; k<4; ++k) {
m_index->addValue(face.getPositionIndex(k)+m_offsetIt->second.position);
i = 1;
if (m_hasNormal) {
m_index->addValue(face.getNormalIndex(k)+m_offsetIt->second.normal);
++i;
}
for (; i<m_indexStride; ++i) {
m_index->addValue(0);
}
}
}
}
void FaceSpatialize<BasicTraits>::CategoryGeneral::addData (OpenSGFaceBase<OpenSGTraits>* node,
const FaceIterator& face)
{
CategoryColor::addData(node, face);
if (m_hasTex) {
GeoTexCoords2f::StoredFieldType* t = m_texCoord->getFieldPtr();
for (u32 k=0; k<face.getLength(); ++k) {
t->addValue(face.getTexCoords(k));
}
assert(m_coord->getSize() == m_texCoord->getSize());
}
}
void FaceSpatialize<BasicTraits>::CategoryColor::addData (OpenSGFaceBase<OpenSGTraits>* node,
const FaceIterator& face)
{
CategoryRaw::addData(node, face);
if (m_hasColor) {
GeoColors3f::StoredFieldType* c = m_color->getFieldPtr();
for (u32 k=0; k<face.getLength(); ++k) {
c->addValue(face.getColor(k));
}
assert(m_coord->getSize() == m_color->getSize());
}
}
void FaceSpatialize<BasicTraits>::CategoryRaw::addData (OpenSGFaceBase<OpenSGTraits>* node,
const FaceIterator& face)
{
GeoPositions3f::StoredFieldType* p = m_coord->getFieldPtr();
GeoNormals3f::StoredFieldType* n = m_normal->getFieldPtr();
//GeoIndicesUI32::StoredFieldType* i = m_index->getFieldPtr();
GeoPositionsPtr faceP = node->getPositions();
addRefCP(faceP);
u32 k;
for (k=0; k<faceP->getSize(); ++k) {
p->addValue(faceP->getValue(k));
if (face.getLength()==3) {
m_index->insertValue(p->size()-1, m_quadOffset++);
} else {
m_index->addValue(p->size()-1);
}
}
if (!m_hasNormal) {
#if 1
Vec3f p0(faceP->getValue(0));
Vec3f p1(faceP->getValue(1));
Vec3f p2(faceP->getValue(2));
p2 -= p1; p0 -= p1;
if (m_ccw) {
p0.crossThis(p2); p0.normalize();
n->addValue(p0);
} else {
p2.crossThis(p0); p2.normalize();
n->addValue(p2);
}
#endif
} else { // per-vertex normals or per-face normals
GeoNormalsPtr faceN = node->getNormals();
addRefCP(faceN);
for (k=0; k<faceN->getSize(); ++k) {
n->addValue(faceN->getValue(k));
}
subRefCP(faceN);
}
subRefCP(faceP);
}
/*
Aufruf dieser Funktion erfolgt bei Traversierung des Szenengraphen
mittels OpenSG-Funktion traverse().
Enthaelt ein Knoten verwertbare Geometrieinformation so tragen wir
Zeiger auf seine Geometrie (OpenSG-Strukturen) im array gla_meshInfo_
ein.
Nebenbei bestimmen wir für die Geometrie auch noch die World-Space-
Transformation (evtl. existiert eine OpenSG-Funktion um diese
Information zu erhalten, der Autor hat keine in der OpenSG-API
entdeckt).
*/
Action::ResultE enter(NodePtr &node)
{
int i, j, h;
Pnt3f v;
int numFaces, numFaceVertices, vId, size;
MeshInfo meshInfo;
TinyMatrix transf;
FaceIterator fit;
int numQuads;
NamePtr namePtr;
char name[255];
namePtr = NamePtr::dcast(node->findAttachment(Name::getClassType().getGroupId()));
if(namePtr == osg::NullFC)
strcpy(name, "");
else
{
strcpy(name, namePtr->getFieldPtr()->getValue().c_str());
}
SINFO << "Node name = '" << name << "'" << endl << endLog;
GeometryPtr geo = GeometryPtr::dcast(node->getCore());
if(geo != NullFC)
{
GeoPLengthsUI32Ptr pLength = GeoPLengthsUI32Ptr::dcast(geo->getLengths());
GeoPTypesUI8Ptr pTypes = GeoPTypesUI8Ptr::dcast(geo->getTypes());
/* pLength and pTypes should not be NullFC, however VRML Importer/Exporter
code is instable by now, so this can happen */
if((pLength != NullFC) && (pTypes != NullFC))
{
GeoPLengthsUI32::StoredFieldType * pLengthField = pLength->getFieldPtr();
GeoPTypesUI8::StoredFieldType * pTypeField = pTypes->getFieldPtr();
size = pLengthField->size();
for(h = 0; h < size; h++)
{
if(((*pTypeField)[h] == GL_TRIANGLES) ||
((*pTypeField)[h] == GL_QUADS))
{
/* may quads appear in GL_TRIANGLES ? */
/* check if all triangles have three vertices */
numQuads = 0;
fit = geo->beginFaces();
while(fit != geo->endFaces())
{
numFaceVertices = fit.getLength();
if(numFaceVertices == 4)
numQuads++;
if(numFaceVertices > 4)
{
SWARNING <<
"More than 4 vertices in face!" <<
endl <<
endLog;
return Action::Continue;
// exit(1);
}
++fit;
}
if(numQuads > 0)
{
SWARNING << "Quad encountered" << endl << endLog;
}
if(gl_sga->nodeDepth_ > 0)
{
for(i = 0; i < gl_sga->nodeDepth_; i++)
{
meshInfo.transf = meshInfo.transf * gl_sga->transf_[i];
}
}
else
meshInfo.transf.identity();
/* access to vertices */
GeoPositions3fPtr pPos = GeoPositions3fPtr::dcast(geo->getPositions());
GeoPositions3f::StoredFieldType * pPosField = pPos->getFieldPtr();
/* access to faces */
numFaces = 0;
fit = geo->beginFaces();
for(fit = geo->beginFaces(); fit != geo->endFaces(); ++fit)
{
numFaceVertices = fit.getLength();
for(j = 0; j < numFaceVertices; j++)
{
vId = fit.getPositionIndex(j);
}
numFaces++;
} /* for fit */
/* set other mesh attributes */
meshInfo.numQuads = numQuads;
meshInfo.geoPtr = geo;
meshInfo.vPtr = pPosField;
meshInfo.triangularFaces = (numQuads == 0);
meshInfo.numVertices = pPosField->size();
meshInfo.numFaces = numFaces;
gl_sga->meshInfo_.push_back(meshInfo);
gl_sga->numGeometryNodes_++;
}
else
{
// SWARNING << "Neither triangle nor quad. Field type = " <<
// (*pTypeField)[h] << endl << endLog;
}
} /* for h */
} /* if pLength!=NullFC */
}
else if(node->getCore()->getType().isDerivedFrom(Transform::getClassType()))
{
TransformPtr t = TransformPtr::dcast(node->getCore());
Matrix ma;
ma = t->getMatrix();
SINFO <<
"Node type derived from transform, skipping children" <<
endl <<
endLog;
for(i = 0; i < 4; i++)
{
for(j = 0; j < 4; j++)
{
transf[i][j] = ma[j][i]; /* the matrix is stored as columns/rows ? */
}
}
if(gl_sga->nodeDepth_ > gl_sga->maxNodeDepth_)
{
gl_sga->maxNodeDepth_ = gl_sga->nodeDepth_;
gl_sga->transf_.push_back(transf);
}
else
{
gl_sga->transf_[gl_sga->nodeDepth_] = transf;
}
gl_sga->nodeDepth_++;
}
return Action::Continue;
}
/*
Konvertierung des mit meshId bezeichneten IndexedFaceSets in ein Mesh
vom Typ TriangleSet.
Zu beachten:
IndexedFaceSets, die Eckpunkte "shared", werden beim Parsen des
Szenengraphen (Konstruktor) zu einem Teilmesh zusammengefasst
(erhalten dieselbe ID).
Bei der Konvertierung wird aus diesen ein Mesh generiert.
*/
int WmSceneGraphAccess::convertToTs(TriangleSet *ts, int *numQuadsFound,
GEOMARK_BitArray **isQuadVertex, int meshId)
{
int i, j, k;
int offsetVertices, numVertices, numFaces, numFaceVertices;
int to, from;
TinyVector v;
FaceIterator fit;
int trVIds[3], quadVIds[4];
GeometryPtr geoPtr;
BOOL quadsPresent;
int numQuads;
if(numMeshes_ < 1)
return -1;
offsetVertices = 0;
*isQuadVertex = NULL;
quadsPresent = FALSE;
numQuads = 0;
if(meshId == -1)
{ /* generate single flat mesh */
/* first pass */
SINFO << "Generating single flat mesh" << endl << endLog;
numVertices = 0;
numFaces = 0;
numQuads = 0;
for(i = 0; i < numGeometryNodes_; i++)
{
if((i == 0) || (meshInfo_[i].meshId != meshInfo_[i - 1].meshId))
{
numVertices += meshInfo_[i].numVertices;
SINFO <<
"mesh id = " <<
meshInfo_[i].meshId <<
endl <<
"# of vertices = " <<
meshInfo_[i].numVertices <<
endl <<
endLog;
}
numFaces += meshInfo_[i].numFaces;
numQuads += meshInfo_[i].numQuads;
if((!quadsPresent) && (meshInfo_[i].numQuads > 0))
quadsPresent = TRUE;
}
if(quadsPresent)
{
*isQuadVertex = new GEOMARK_BitArray(numVertices);
numFaces += numQuads;
}
SINFO << "# of faces = " << numFaces << endl << endLog;
ts->init(numVertices, numFaces);
/* second pass */
numVertices = 0;
numFaces = 0;
for(i = 0; i < numGeometryNodes_; i++)
{
if((i > 0) && (meshInfo_[i].meshId != meshInfo_[i - 1].meshId))
{
offsetVertices += meshInfo_[i - 1].numVertices;
}
if((i == 0) || (meshInfo_[i].meshId != meshInfo_[i - 1].meshId))
{
/* set vertex data */
for(j = 0; j < meshInfo_[i].vPtr->size(); j++)
{
v[0] = (*meshInfo_[i].vPtr)[j][0];
v[1] = (*meshInfo_[i].vPtr)[j][1];
v[2] = (*meshInfo_[i].vPtr)[j][2];
/* transformation does matter for case of single flat mesh */
v = meshInfo_[i].transf * v; /* transform into world space */
ts->setVertex(offsetVertices + j, v);
}
numVertices += meshInfo_[i].numVertices;
}
/* set face data */
geoPtr = meshInfo_[i].geoPtr;
for(fit = geoPtr->beginFaces(); fit != geoPtr->endFaces(); ++fit)
{
/* this should be always 3 */
numFaceVertices = fit.getLength();
if(numFaceVertices == 4)
{
for(j = 0; j < 4; j++)
{
quadVIds[j] = fit.getPositionIndex(j);
(*isQuadVertex)->setBit(quadVIds[j], 1);
}
/* split quad into two triangles */
ts->setFace(numFaces, offsetVertices + quadVIds[0],
offsetVertices + quadVIds[1],
offsetVertices + quadVIds[2]);
numFaces++;
ts->setFace(numFaces, offsetVertices + quadVIds[2],
offsetVertices + quadVIds[3],
offsetVertices + quadVIds[0]);
numFaces++;
}
else
{
if(numFaceVertices != 3)
{
printf("numFaceVertices=%d\n", numFaceVertices);
// exit(1);
return -1;
}
for(j = 0; j < 3; j++)
{
trVIds[j] = fit.getPositionIndex(j);
}
ts->setFace(numFaces, offsetVertices + trVIds[0],
offsetVertices + trVIds[1],
offsetVertices + trVIds[2]);
numFaces++;
}
} /* for fit */
} /* for i */
ts->meshComplete();
}
else
{
/* generate triangleset for mesh meshId */
from = 0;
while((from < numGeometryNodes_) && (meshInfo_[from].meshId < meshId))
{
from++;
}
if((from < numGeometryNodes_) && (meshInfo_[from].meshId == meshId))
{
/* first pass: count vertices and faces */
numVertices = 0;
numFaces = 0;
offsetVertices = 0; /* const 0 */
i = from;
numVertices = meshInfo_[i].numVertices;
numQuads = 0;
while((i < numGeometryNodes_) && (meshInfo_[i].meshId == meshId))
{
numFaces += meshInfo_[i].numFaces;
numQuads += meshInfo_[i].numQuads;
i++;
}
SINFO << "# of vertices = " << numVertices << endLog;
SINFO << "# of quads = " << numQuads << endLog;
SINFO << "# of faces = " << numFaces << endl << endLog;
if(numQuads > 0)
{
*isQuadVertex = new GEOMARK_BitArray(numVertices);
numFaces += numQuads;
}
ts->init(numVertices, numFaces);
/* second pass */
numVertices = 0;
numFaces = 0;
offsetVertices = 0;
i = from;
while((i < numGeometryNodes_) && (meshInfo_[i].meshId == meshId))
{
/* set vertex data */
for(j = 0; j < meshInfo_[i].vPtr->size(); j++)
{
v[0] = (*meshInfo_[i].vPtr)[j][0];
v[1] = (*meshInfo_[i].vPtr)[j][1];
v[2] = (*meshInfo_[i].vPtr)[j][2];
/* transformation does not matter for single IndexedFaceSets */
ts->setVertex(offsetVertices + j, v);
}
/* set face data */
geoPtr = meshInfo_[i].geoPtr;
for(fit = geoPtr->beginFaces(); fit != geoPtr->endFaces();
++fit)
{
numFaceVertices = fit.getLength();
if(numFaceVertices == 4)
{
SWARNING <<
"Quad found. Will be split" <<
endl <<
endLog;
for(j = 0; j < 4; j++)
{
quadVIds[j] = fit.getPositionIndex(j);
(*isQuadVertex)->setBit(quadVIds[j], 1);
}
/* split quad into two triangles */
ts->setFace(numFaces, offsetVertices + quadVIds[0],
offsetVertices + quadVIds[1],
offsetVertices + quadVIds[2]);
numFaces++;
ts->setFace(numFaces, offsetVertices + quadVIds[2],
offsetVertices + quadVIds[3],
offsetVertices + quadVIds[0]);
numFaces++;
}
else
{
if(numFaceVertices != 3)
{
SFATAL <<
"# of vertices for face = " <<
numFaceVertices <<
endl <<
endLog;
return 1;
}
for(j = 0; j < 3; j++)
{
trVIds[j] = fit.getPositionIndex(j);
}
ts->setFace(numFaces, offsetVertices + trVIds[0],
offsetVertices + trVIds[1],
offsetVertices + trVIds[2]);
numFaces++;
}
} /* for fit */
i++;
} /* while i */
SINFO << "# of faces = " << numFaces << endl << endLog;
ts->meshComplete();
} /* if */
else
{
SFATAL << "No mesh with id " << meshId << endl << endLog;
return 1;
}
} /* generate flat mesh from all nodes */
*numQuadsFound = numQuads;
return 0;
}
