static BoundingBox labelBoundingBoxForNode(Graph *graph, node n) {
IntegerProperty *viewShape = graph->getProperty<IntegerProperty>("viewShape");
LayoutProperty *viewLayout = graph->getProperty<LayoutProperty>("viewLayout");
SizeProperty *viewSize = graph->getProperty<SizeProperty>("viewSize");
BoundingBox renderingBox;
GlyphsManager::getGlyph(viewShape->getNodeValue(n))->getTextBoundingBox(renderingBox);
const Coord &pos = viewLayout->getNodeValue(n);
const Size &size = viewSize->getNodeValue(n) * Size(renderingBox.width(), renderingBox.height(), renderingBox.depth());
return BoundingBox(pos - size/2.f, pos + size/2.f);
}
bool importGraph() {
unsigned int nbNodes = 30;
if (dataSet!=NULL) {
dataSet->get("nodes", nbNodes);
}
if (nbNodes < 3) nbNodes = 3;
srand(clock());
LayoutProperty *newLayout = graph->getLocalProperty<LayoutProperty>("viewLayout");
SizeProperty *newSize = graph->getLocalProperty<SizeProperty>("viewSize");
newSize->setAllNodeValue(Size(1.0,1.0,1.0));
vector<Triangle> faces;
Triangle f(graph->addNode(),
graph->addNode(),
graph->addNode());
faces.push_back(f);
graph->addEdge(f.a, f.b);
graph->addEdge(f.b, f.c);
graph->addEdge(f.c, f.a);
float val = static_cast<float>(nbNodes);
newLayout->setNodeValue(f.a, Coord(-val, -val, 0));
newLayout->setNodeValue(f.b, Coord(0, val, 0));
newLayout->setNodeValue(f.c, Coord(val, -val, 0));
unsigned int nb = 3;
while(nb<nbNodes) {
//choose a Triangle randomly
unsigned int i = rand()%faces.size();
Triangle f = faces[i];
node n = graph->addNode();
Coord tmp = newLayout->getNodeValue(f.a) +
newLayout->getNodeValue(f.b) +
newLayout->getNodeValue(f.c);
tmp /= 3.0;
newLayout->setNodeValue(n, tmp);
//Split the triangle in three part
graph->addEdge(n, f.a);
graph->addEdge(n, f.b);
graph->addEdge(n, f.c);
//add the three new Triangle, remove the old one(replace)
Triangle f1(f.a, f.b, n);
Triangle f2(f.b, f.c, n);
Triangle f3(f.c, f.a, n);
faces[i] = f1;
faces.push_back(f2);
faces.push_back(f3);
++nb;
}
return pluginProgress->state()!=TLP_CANCEL;
}
//=============================================================================
PropertyInterface* SizeProperty::clonePrototype(Graph * g, const std::string& n) {
if( !g )
return 0;
// allow to get an unregistered property (empty name)
SizeProperty * p = n.empty()
? new SizeProperty(g) : g->getLocalProperty<SizeProperty>( n );
p->setAllNodeValue( getNodeDefaultValue() );
p->setAllEdgeValue( getEdgeDefaultValue() );
return p;
}
bool exportGraph(ostream &os) {
os << "graph [" << endl;
os << "directed 1" << endl;
os << "version 2" << endl;
LayoutProperty *layout = graph->getProperty<LayoutProperty>("viewLayout");
StringProperty *label = graph->getProperty<StringProperty>("viewLabel");
// IntegerProperty *shape =getProperty<IntegerProperty>(graph->getPropertyManager(),"viewShape");
ColorProperty *colors = graph->getProperty<ColorProperty>("viewColor");
SizeProperty *sizes = graph->getProperty<SizeProperty>("viewSize");
//Save Nodes
Iterator<node> *itN=graph->getNodes();
if (itN->hasNext()) {
for (; itN->hasNext();) {
node itn=itN->next();
os << "node [" << endl;
os << "id "<< itn.id << endl ;
os << "label \"" << convert(label->getNodeValue(itn)) << "\"" << endl;
os << "graphics [" << endl;
printCoord(os,layout->getNodeValue(itn));
printSize(os,sizes->getNodeValue(itn));
os << "type \"rectangle\"" << endl;
os << "width 0.12" << endl;
os << "fill \"#"<< hex << setfill('0') << setw(2) <<(int)colors->getNodeValue(itn).getR()
<< hex << setfill('0') << setw(2) <<(int)colors->getNodeValue(itn).getG()
<< hex << setfill('0') << setw(2) <<(int)colors->getNodeValue(itn).getB() << "\""<< endl;
// os << "outline \"#"<< hex << setfill('0') << setw(2) <<(int)colors->getNodeValue(itn).getR()
// << hex << setfill('0') << setw(2) <<(int)colors->getNodeValue(itn).getG()
// << hex << setfill('0') << setw(2) <<(int)colors->getNodeValue(itn).getB() << "\""<< endl;
os << "outline \"#000000\"" << endl;
os << dec << setfill(' ') << setw(6) << "]" << endl;
os << ']' << endl;
}
}
delete itN;
//Save edges
Iterator<edge> *itE=graph->getEdges();
for (; itE->hasNext();) {
edge ite=itE->next();
os << "edge [" << endl;
os << "source " << graph->source(ite).id << endl;
os << "target " << graph->target(ite).id << endl;
os << "id " << ite.id << endl;
os << "label \"" << label->getEdgeValue(ite) << "\"" << endl;
os << "graphics [" << endl;
os << "type \"line\"" << endl;
os << "arrow \"last\"" << endl;
os << "width 0.1" << endl;
os << "Line [" << endl;
vector<Coord> lcoord;
vector<Coord>::const_iterator it;
lcoord=layout->getEdgeValue(ite);
if (!lcoord.empty()) {
node itn=graph->source(ite);
printPoint(os,layout->getNodeValue(itn));
}
for (it=lcoord.begin(); it!=lcoord.end(); ++it) {
printPoint(os,*it);
}
if (!lcoord.empty()) {
node itn=graph->target(ite);
printPoint(os,layout->getNodeValue(itn));
}
os << "]" << endl;
os << "]" << endl;
os << "]" << endl;
}
delete itE;
os << "]" << endl;
return true;
}