void StressMinimization::minimizeStress(
GraphAttributes& GA,
NodeArray<NodeArray<double> >& shortestPathMatrix,
NodeArray<NodeArray<double> >& weightMatrix)
{
const Graph& G = GA.constGraph();
int numberOfPerformedIterations = 0;
double prevStress = numeric_limits<double>::max();
double curStress = numeric_limits<double>::max();
if (m_terminationCriterion == STRESS) {
curStress = calcStress(GA, shortestPathMatrix, weightMatrix);
}
NodeArray<double> newX;
NodeArray<double> newY;
NodeArray<double> newZ;
if (m_terminationCriterion == POSITION_DIFFERENCE) {
newX.init(G);
newY.init(G);
if (GA.has(GraphAttributes::threeD))
newZ.init(G);
}
do {
if (m_terminationCriterion == POSITION_DIFFERENCE) {
if (GA.has(GraphAttributes::threeD))
copyLayout(GA, newX, newY, newZ);
else copyLayout(GA, newX, newY);
}
nextIteration(GA, shortestPathMatrix, weightMatrix);
if (m_terminationCriterion == STRESS) {
prevStress = curStress;
curStress = calcStress(GA, shortestPathMatrix, weightMatrix);
}
} while (!finished(GA, ++numberOfPerformedIterations, newX, newY, prevStress, curStress));
Logger::slout() << "Iteration count:\t" << numberOfPerformedIterations
<< "\tStress:\t" << calcStress(GA, shortestPathMatrix, weightMatrix) << endl;
}
int OzUIWidgetDrawTextLayout(struct OzUIWidget *widget, struct OzUITextLayoutConstraint *tlc, struct LineStyle *lineStyle, struct OzUITextLayout *layout)
{
struct OzUITextLayoutConstraint baseTLC;
struct OzUITextLayout *baseLayout;
int ret;
memcpy(&baseTLC, tlc, sizeof(struct OzUITextLayoutConstraint));
baseTLC.originX += widget->rect.x;
baseTLC.originY += widget->rect.y;
baseTLC.rect.x += widget->rect.x;
baseTLC.rect.y += widget->rect.y;
baseLayout = copyLayout(layout);
translateLayoutCoords(baseLayout, widget->rect.x, widget->rect.y);
ret = OzUIWindowDrawTextLayout(widget->window, &widget->dirtyRect, &baseTLC, lineStyle, baseLayout);
free(baseLayout);
return ret;
}
