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some bug fixes ,todo : dont divide by trig_shift

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Matthias Hochsteger 2024-05-27 15:00:57 +02:00
parent a253fa4e18
commit c7c4478426
1 changed files with 52 additions and 25 deletions
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89
libsrc/meshing/boundarylayer.cpp
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@ -204,29 +204,56 @@ struct GrowthVectorLimiter {
auto pi_from = map_from[pi_to];
if (!pi_from.IsValid()) return;
if (trig_shift > 0) {
auto intersection = isIntersectingTrig(pi_from, pi_to, sei, trig_shift);
if (!intersection) return;
double dshift = trig_shift;
while (intersection && dshift > 0.01 && dshift > intersection.lam0) {
dshift *= 0.9;
intersection = isIntersectingTrig(pi_from, pi_to, sei, dshift);
}
dshift /= 0.9;
intersection = isIntersectingTrig(pi_from, pi_to, sei, dshift);
limits[pi_from] *= intersection.lam0;
auto sel = mesh[sei];
for (auto i : Range(3)) limits[sel[i]] *= dshift;
} else {
auto seg = GetSeg(pi_to, seg_shift);
if (trig_shift > 0) {
if(pi_from == 3523) cout << "check intersection " << mesh[sei] << endl;
auto intersection = isIntersectingTrig(seg, GetTrig(sei, trig_shift));
if (!intersection) return;
if(pi_from == 3523) cout << "found intersection " << mesh[sei] << ", lam = " << intersection.lam0 << endl;
double dshift = trig_shift;
while (dshift/trig_shift > intersection.lam0/seg_shift) {
dshift *= 0.9;
auto reduced_intersection = isIntersectingPlane(seg, GetTrig(sei, dshift));
if(!reduced_intersection) break;
// cout << "still intersecting " << dshift << endl;
intersection = reduced_intersection;
}
if(dshift/trig_shift < intersection.lam0/seg_shift) {
// cout << "unshift " << dshift << ',' << intersection.lam0 << endl;
dshift /= 0.9;
intersection = isIntersectingPlane(seg, GetTrig(sei, dshift));
}
double min_trig_limit = 1e99;
auto sel = mesh[sei];
for (auto i : Range(3))
min_trig_limit = min(min_trig_limit, limits[sel[i]]*dshift);
double new_seg_limit = intersection.lam0*seg_shift;
double new_trig_limit = dshift*trig_shift;
if(new_trig_limit >= min_trig_limit || new_seg_limit >= limits[pi_from] )
return; // nothing to do
// decide what to limit (apply the larger limit)
if(new_seg_limit > new_trig_limit)
limits[pi_from] = new_seg_limit;
else
for (auto pi : sel.PNums())
limits[pi] = new_trig_limit;
} else {
auto trig = GetTrig(sei, 0.0);
auto intersection = isIntersectingTrig(seg, trig);
auto lam = intersection.lam0;
if (intersection) {
// check with original surface elements
limits[pi_from] =
min(limits[pi_from], seg_shift * 0.45 * INTERSECTION_SAFETY * lam);
return;
// checking with original surface elements -> allow only half the distance
auto new_seg_limit = 0.40 * intersection.lam0*seg_shift;
if (intersection && new_seg_limit < limits[pi_from]) {
// cout << seg_shift << "\tlimiting " << pi_from << " from " << limits[pi_from] << " to " << new_seg_limit << endl;
auto p0 = seg[0];
auto p1 = seg[1];
auto d = Dist(p0, p1);
auto [gw, height] = tool.growth_vector_map[pi_to];
// cout << "gw = " << *gw << ", height = " << height << endl;
// cout << "p0 = " << p0 << ", p1 = " << p1 << ", gw = " << growthvectors[pi_from] << endl;
// cout << "\t" << intersection.p << ',' << d << ',' << Dist(intersection.p, p0)/d<< endl;
limits[pi_from] = new_seg_limit;
}
}
}
@ -291,18 +318,18 @@ struct GrowthVectorLimiter {
// for(auto i : Range(np))
// ori_limits[i] = limits[sel[i]];
// equalizeLimits(sei);
equalizeLimits(sei);
double shift = 1.0;
double safety = 1.1;
const double step_factor = 0.9;
while (shift > 0.01 && isIntersecting(sei, shift * safety)) {
while (isIntersecting(sei, shift * safety)) {
shift *= step_factor;
double max_limit = 0;
for (auto i : Range(np)) max_limit = max(max_limit, limits[sel[i]]);
for (auto i : Range(np))
if (max_limit == limits[sel[i]]) limits[sel[i]] *= step_factor;
if (max_limit < 0.01) break;
// if (max_limit < 0.01) break;
}
}
}
@ -313,7 +340,7 @@ struct GrowthVectorLimiter {
std::array<Point<3>, 3> trig) {
auto t1 = trig[1] - trig[0];
auto t2 = trig[2] - trig[0];
auto n = Cross(trig[1] - trig[0], trig[2] - trig[0]);
auto n = Cross(t1, t2);
auto v0n = (seg[0] - trig[0]) * n;
auto v1n = (seg[1] - trig[0]) * n;
@ -327,11 +354,11 @@ struct GrowthVectorLimiter {
return intersection;
}
Intersection_ isIntersectingPlane(PointIndex pi, PointIndex pi_to,
SurfaceElementIndex sei,
double shift = 0.0) {
return isIntersectingPlane(GetSeg(pi, pi_to), GetTrig(sei, shift));
}
// Intersection_ isIntersectingPlane(PointIndex pi, PointIndex pi_to,
// SurfaceElementIndex sei,
// double shift = 0.0) {
// return isIntersectingPlane(GetSeg(pi, pi_to), GetTrig(sei, shift));
// }
Intersection_ isIntersectingTrig(std::array<Point<3>, 2> seg,
std::array<Point<3>, 3> trig) {
@ -441,7 +468,6 @@ Vec<3> BoundaryLayerTool ::getEdgeTangent(PointIndex pi, int edgenr) {
void BoundaryLayerTool ::LimitGrowthVectorLengths() {
static Timer tall("BoundaryLayerTool::LimitGrowthVectorLengths");
RegionTimer rtall(tall);
return;
mesh.Save("mesh_before_limit.vol");
limits.SetSize(mesh.Points().Size());
@ -465,7 +491,7 @@ void BoundaryLayerTool ::LimitGrowthVectorLengths() {
// growthvectors[i] *= limits[i];
// limits = 1.0;
// // now limit again with shifted surface elements
// now limit again with shifted surface elements
trig_shift = 1.1;
seg_shift = 1.1;
limiter.FindTreeIntersections(
@ -479,6 +505,7 @@ void BoundaryLayerTool ::LimitGrowthVectorLengths() {
// limits[pi_from] = min(limits[pi_from], limits[pi_to]);
// }
// cout << "limits " << endl << limits << endl;
for (auto i : Range(growthvectors)) growthvectors[i] *= limits[i];
}