bool CloudStation::SetColorPerVertex(osg::Vec4Array& colors)
{
osg::Group* pc=dynamic_cast<osg::Group*>(
this->getChild(1));
if(pc==NULL)
return false;
osg::Vec4Array::iterator sitr=colors.begin();
osg::Vec4Array::iterator eitr=colors.begin();
for(unsigned int i=0; i<pc->getNumChildren(); i++) {
osg::Geode* geode = dynamic_cast<osg::Geode*>(pc->getChild(i));
if(geode==NULL)
continue;
osg::Array* nv = geode->getDrawable(0)->asGeometry()->getVertexArray();
osg::Vec3Array* v3a = dynamic_cast<osg::Vec3Array*>(nv);
if(v3a==NULL)
continue;
eitr+=v3a->size()-1;
osg::Vec4Array* color_sub = new osg::Vec4Array(sitr, eitr);
eitr++;
sitr=eitr;
geode->getDrawable(0)->asGeometry()->setColorArray(color_sub);
geode->getDrawable(0)->asGeometry()->setColorBinding(osg::Geometry::BIND_PER_VERTEX);
if(eitr==colors.end())
break;
}
return true;
}
void Model::arrangeFaceColors(const osg::Vec4Array &colors) {
if (!this->m_mesh || !this->m_colorArray
|| !this->m_vertexGeometry || !this->m_edgeGeometry || !this->m_faceGeometry) return;
if (this->m_usingSharedVertex) return;
if (colors.size() != this->m_mesh->fn * 3) return;
this->m_colorArray->assign(colors.begin(), colors.end());
this->m_vertexGeometry->dirtyDisplayList();
this->m_edgeGeometry->dirtyDisplayList();
this->m_faceGeometry->dirtyDisplayList();
}
void Model::arrangeVertexColors(const osg::Vec4Array &colors) {
if (!this->m_mesh || !this->m_colorArray
|| !this->m_vertexGeometry || !this->m_edgeGeometry || !this->m_faceGeometry) return;
if (colors.size() != this->m_mesh->vn) return;
if (this->m_usingSharedVertex) {
this->m_colorArray->assign(colors.begin(), colors.end());
} else {
this->m_colorArray->clear();
this->m_colorArray->reserve(this->m_mesh->fn * 3);
for (pcvcg::TriMesh::ConstFaceIterator cf_iter = this->m_mesh->face.begin();
cf_iter != this->m_mesh->face.end(); ++cf_iter) {
this->m_colorArray->push_back(colors[vcg::tri::Index(*this->m_mesh, cf_iter->cV(0))]);
this->m_colorArray->push_back(colors[vcg::tri::Index(*this->m_mesh, cf_iter->cV(1))]);
this->m_colorArray->push_back(colors[vcg::tri::Index(*this->m_mesh, cf_iter->cV(2))]);
}
}
this->m_vertexGeometry->dirtyDisplayList();
this->m_edgeGeometry->dirtyDisplayList();
this->m_faceGeometry->dirtyDisplayList();
}