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;
}
void TestPropertiesMinMaxAfterAddNode::testLayoutPropertyMinMaxAfterAddNode() {
LayoutProperty *property = graph->getProperty<LayoutProperty>("testLayout");
// add two nodes
node n1 = graph->addNode();
node n2 = graph->addNode();
const Coord firstNodePos(1.0f, 2.0f);
const Coord secondNodePos(3.0f, 4.0f);
property->setNodeValue(n1, firstNodePos);
property->setNodeValue(n2, secondNodePos);
CPPUNIT_ASSERT_EQUAL(firstNodePos, property->getMin(graph));
CPPUNIT_ASSERT_EQUAL(secondNodePos, property->getMax(graph));
// add a new node, the value associated to the layout property is the default one 0
graph->addNode();
// min should be 0
CPPUNIT_ASSERT_EQUAL(Coord(), property->getMin(graph));
CPPUNIT_ASSERT_EQUAL(secondNodePos, property->getMax(graph));
}
