void QgsTessellatedPolygonGeometry::setPolygons( const QList<QgsPolygon *> &polygons, const QList<QgsFeatureId> &featureIds, const QgsPointXY &origin, float extrusionHeight, const QList<float> &extrusionHeightPerPolygon )
{
Q_ASSERT( polygons.count() == featureIds.count() );
mTriangleIndexStartingIndices.reserve( polygons.count() );
mTriangleIndexFids.reserve( polygons.count() );
QgsTessellator tessellator( origin.x(), origin.y(), mWithNormals, mInvertNormals, mAddBackFaces );
for ( int i = 0; i < polygons.count(); ++i )
{
Q_ASSERT( tessellator.dataVerticesCount() % 3 == 0 );
uint startingTriangleIndex = static_cast<uint>( tessellator.dataVerticesCount() / 3 );
mTriangleIndexStartingIndices.append( startingTriangleIndex );
mTriangleIndexFids.append( featureIds[i] );
QgsPolygon *polygon = polygons.at( i );
float extr = extrusionHeightPerPolygon.isEmpty() ? extrusionHeight : extrusionHeightPerPolygon.at( i );
tessellator.addPolygon( *polygon, extr );
}
qDeleteAll( polygons );
QByteArray data( ( const char * )tessellator.data().constData(), tessellator.data().count() * sizeof( float ) );
int nVerts = data.count() / tessellator.stride();
mVertexBuffer->setData( data );
mPositionAttribute->setCount( nVerts );
if ( mNormalAttribute )
mNormalAttribute->setCount( nVerts );
}
void QgsTessellatedPolygonGeometry::setPolygons( const QList<QgsPolygon *> &polygons, const QgsPointXY &origin, float extrusionHeight, const QList<float> &extrusionHeightPerPolygon )
{
QgsTessellator tessellator( origin.x(), origin.y(), mWithNormals, mInvertNormals );
for ( int i = 0; i < polygons.count(); ++i )
{
QgsPolygon *polygon = polygons.at( i );
float extr = extrusionHeightPerPolygon.isEmpty() ? extrusionHeight : extrusionHeightPerPolygon.at( i );
tessellator.addPolygon( *polygon, extr );
}
qDeleteAll( polygons );
QByteArray data( ( const char * )tessellator.data().constData(), tessellator.data().count() * sizeof( float ) );
int nVerts = data.count() / tessellator.stride();
mVertexBuffer->setData( data );
mPositionAttribute->setCount( nVerts );
if ( mNormalAttribute )
mNormalAttribute->setCount( nVerts );
}
//Load TSM file
GLC_World GLWidget::loadTSMFile( const QString &filename )
{
RhBuilderPtr reader = makePtr<RhBuilder>(filename.toStdString());
TSplinePtr spline = reader->findTSpline();
GLC_World w;
IndexList face;
QList<float> vertex;
QList<float> normal;
TTessellator tessellator(spline);
TImagePtr image = spline->getTImage();
// Go through all the faces in TImage and create abjects
TFacVIterator fiter = image->faceIteratorBegin();
for (;fiter!=image->faceIteratorEnd();fiter++)
{
TFacePtr tface = *fiter;
TriMeshPtr trimesh = tessellator.interpolateFace(tface);
P3dVIterator piter = trimesh->pointIteratorBegin();
for (piter;piter!=trimesh->pointIteratorEnd();piter++)
{
vertex.push_back((*piter)->x());
vertex.push_back((*piter)->y());
vertex.push_back((*piter)->z());
}
N3dVIterator niter = trimesh->normalIteratorBegin();
for (;niter!=trimesh->normalIteratorEnd();niter++)
{
normal.push_back((*niter)->i());
normal.push_back((*niter)->j());
normal.push_back((*niter)->k());
}
TriVIterator titer = trimesh->triangleIteratorBegin();
for (;titer!=trimesh->triangleIteratorEnd();titer++)
{
face.push_back((*titer)->point_indices[0]);
face.push_back((*titer)->point_indices[1]);
face.push_back((*titer)->point_indices[2]);
}
GLC_Mesh* glc_mesh = new GLC_Mesh();
glc_mesh->addTriangles(0,face);
face.clear();
glc_mesh->addVertice(vertex.toVector());
vertex.clear();
glc_mesh->addNormals(normal.toVector());
normal.clear();
glc_mesh->finish();
GLC_3DRep *rep = new GLC_3DRep(glc_mesh);
glc_mesh = NULL;
// Set the material
GLC_Material* pCurrentMat= NULL;
pCurrentMat= rep->geomAt(0)->firstMaterial();
pCurrentMat->setAmbientColor(Qt::gray);
pCurrentMat->setDiffuseColor(Qt::gray);
// Add objects (faces) to the world collection
w.collection()->add(*rep);
}
return w;
}