// returns true, if line contains p
bool DLine::contains(const DPoint &p) const
{
if (p == start() || p == end())
return true;
// check, if outside rect
DRect r(start(), end());
if (!r.contains(p))
return false;
if (dx() == 0.0) { // first check, if line is vertical
if (DIsEqual (p.m_x, start().m_x) &&
DIsLessEqual (p.m_y, (max(start().m_y, end().m_y))) &&
DIsGreaterEqual(p.m_y, (min(start().m_y, end().m_y))))
return true;
return false;
}
double dx2p = p.m_x - start().m_x;
double dy2p = p.m_y - start().m_y;
if (dx2p == 0.0) // dx() != 0.0, already checked
return false;
if (DIsEqual(slope(), (dy2p/dx2p)))
return true;
return false;
}
void GEMLayout::call(GraphAttributes &AG)
{
const Graph &G = AG.constGraph();
if(G.empty())
return;
OGDF_ASSERT(m_numberOfRounds >= 0);
OGDF_ASSERT(DIsGreaterEqual(m_minimalTemperature,0));
OGDF_ASSERT(DIsGreaterEqual(m_initialTemperature,m_minimalTemperature));
OGDF_ASSERT(DIsGreaterEqual(m_gravitationalConstant,0));
OGDF_ASSERT(DIsGreaterEqual(m_desiredLength,0));
OGDF_ASSERT(DIsGreaterEqual(m_maximalDisturbance,0));
OGDF_ASSERT(DIsGreaterEqual(m_rotationAngle,0));
OGDF_ASSERT(DIsLessEqual(m_rotationAngle,pi / 2));
OGDF_ASSERT(DIsGreaterEqual(m_oscillationAngle,0));
OGDF_ASSERT(DIsLessEqual(m_oscillationAngle,pi / 2));
OGDF_ASSERT(DIsGreaterEqual(m_rotationSensitivity,0));
OGDF_ASSERT(DIsLessEqual(m_rotationSensitivity,1));
OGDF_ASSERT(DIsGreaterEqual(m_oscillationSensitivity,0));
OGDF_ASSERT(DIsLessEqual(m_oscillationSensitivity,1));
OGDF_ASSERT(m_attractionFormula == 1 || m_attractionFormula == 2);
// all edges straight-line
AG.clearAllBends();
GraphCopy GC;
GC.createEmpty(G);
// compute connected component of G
NodeArray<int> component(G);
int numCC = connectedComponents(G,component);
// intialize the array of lists of nodes contained in a CC
Array<List<node> > nodesInCC(numCC);
node v;
forall_nodes(v,G)
nodesInCC[component[v]].pushBack(v);
EdgeArray<edge> auxCopy(G);
Array<DPoint> boundingBox(numCC);
int i;
for(i = 0; i < numCC; ++i)
{
GC.initByNodes(nodesInCC[i],auxCopy);
GraphCopyAttributes AGC(GC,AG);
node vCopy;
forall_nodes(vCopy, GC) {
node vOrig = GC.original(vCopy);
AGC.x(vCopy) = AG.x(vOrig);
AGC.y(vCopy) = AG.y(vOrig);
}
SList<node> permutation;
node v;
// initialize node data
m_impulseX.init(GC,0);
m_impulseY.init(GC,0);
m_skewGauge.init(GC,0);
m_localTemperature.init(GC,m_initialTemperature);
// initialize other data
m_globalTemperature = m_initialTemperature;
m_barycenterX = 0;
m_barycenterY = 0;
forall_nodes(v,GC) {
m_barycenterX += weight(v) * AGC.x(v);
m_barycenterY += weight(v) * AGC.y(v);
}
