void Meshing2Surfaces :: TransformToPlain (const Point3d & locpoint,
const MultiPointGeomInfo & geominfo,
Point2d & planepoint,
double h, int & zone)
{
Point<2> hp;
surface.ToPlane (locpoint, hp, h, zone);
planepoint.X() = hp(0);
planepoint.Y() = hp(1);
}
int Meshing2OCCSurfaces :: TransformFromPlain (Point2d & planepoint,
Point3d & locpoint,
PointGeomInfo & gi,
double h)
{
Point<3> hp;
Point<2> hp2 (planepoint.X(), planepoint.Y());
surface.FromPlane (hp2, hp, gi, h);
locpoint = hp;
return 0;
}
void SplineGeometry::LoadData(std::istream& infile)
{
MESHIT_LOG_INFO("Load 2D Geometry");
Point2d x;
char buf[50], ch;
std::string keyword;
std::string flag;
int nb_domains = 0;
TestComment(infile);
// refinement factor
infile >> elto0;
while (infile.good()) {
TestComment(infile);
infile >> keyword;
ch = TestComment(infile);
if (keyword == "points") {
std::vector<GeomPoint> points;
std::vector<PointIndex> point_ids;
size_t point_id;
size_t nb_points = 0;
while (!isalpha(static_cast<int>(ch))) {
infile >> point_id; // point ids are 1-based
if (point_id > nb_points) nb_points = point_id;
point_ids.push_back(point_id);
infile >> x.X() >> x.Y() >> ch;
Flags flags;
while (ch == '-') {
infile >> flag;
flags.SetCommandLineFlag(flag);
ch = TestComment(infile);
}
infile.unget();
ch = TestComment(infile);
points.push_back(GeomPoint(x, flags.GetNumFlag("ref", 1.0), flags.GetNumFlag("maxh", 1e99)));
}
geompoints.resize(nb_points);
for (size_t i = 0; i < nb_points; i++) {
geompoints[point_ids[i] - 1] = points[i];
}
} else if (keyword == "segments") {
int netrule :: IsLineInFreeZone2 (const Point2d & p1, const Point2d & p2) const
{
int i;
int left, right, allleft, allright;
double nx, ny, nl, c;
if (p1.X() > fzmaxx && p2.X() > fzmaxx ||
p1.X() < fzminx && p2.X() < fzminx ||
p1.Y() > fzmaxy && p2.Y() > fzmaxy ||
p1.Y() < fzminy && p2.Y() < fzminy) return 0;
for (i = 1; i <= transfreezone.Size(); i++)
{
if (freesetinequ.Get(i, 1) * p1.X() + freesetinequ.Get(i, 2) * p1.Y() +
freesetinequ.Get(i, 3) > -1e-6 &&
freesetinequ.Get(i, 1) * p2.X() + freesetinequ.Get(i, 2) * p2.Y() +
freesetinequ.Get(i, 3) > -1e-6
) return 0;
}
nx = (p2.Y() - p1.Y());
ny = -(p2.X() - p1.X());
nl = sqrt (nx * nx + ny * ny);
if (nl > 1e-8)
{
nx /= nl;
ny /= nl;
c = - (p1.X() * nx + p1.Y() * ny);
allleft = 1;
allright = 1;
for (i = 1; i <= transfreezone.Size(); i++)
{
left = transfreezone.Get(i).X() * nx + transfreezone.Get(i).Y() + c < 1e-7;
right = transfreezone.Get(i).X() * nx + transfreezone.Get(i).Y() + c > -1e-7;
if (!left) allleft = 0;
if (!right) allright = 0;
}
if (allleft || allright) return 0;
}
return 1;
}
int netrule :: IsLineInFreeZone2 (const Point2d & p1, const Point2d & p2) const
{
if ( (p1.X() > fzmaxx && p2.X() > fzmaxx) ||
(p1.X() < fzminx && p2.X() < fzminx) ||
(p1.Y() > fzmaxy && p2.Y() > fzmaxy) ||
(p1.Y() < fzminy && p2.Y() < fzminy) ) return 0;
for (int i = 1; i <= transfreezone.Size(); i++)
{
if (freesetinequ.Get(i, 1) * p1.X() + freesetinequ.Get(i, 2) * p1.Y() +
freesetinequ.Get(i, 3) > -1e-8 && // -1e-6
freesetinequ.Get(i, 1) * p2.X() + freesetinequ.Get(i, 2) * p2.Y() +
freesetinequ.Get(i, 3) > -1e-8 // -1e-6
) return 0;
}
double nx = (p2.Y() - p1.Y());
double ny = -(p2.X() - p1.X());
double nl = sqrt (nx * nx + ny * ny);
if (nl > 1e-8)
{
nx /= nl;
ny /= nl;
double c = - (p1.X() * nx + p1.Y() * ny);
bool allleft = true;
bool allright = true;
for (int i = 1; i <= transfreezone.Size(); i++)
{
bool left = transfreezone.Get(i).X() * nx + transfreezone.Get(i).Y() * ny + c < 1e-7;
bool right = transfreezone.Get(i).X() * nx + transfreezone.Get(i).Y() * ny + c > -1e-7;
if (!left) allleft = false;
if (!right) allright = false;
}
if (allleft || allright) return false;
}
return true;
}
inline Vec2d operator- (const Point2d & p1, const Point2d & p2)
{
return Vec2d (p1.X() - p2.X(), p1.Y() - p2.Y());
}
Point2d Center () const
{ return Point2d( (p1->X()+p2->X()+p3->X())/3, (p1->Y()+p2->Y()+p3->Y())/3); }
double XMin() const { return min3 (p1->X(), p2->X(), p3->X()); }
double XMax() const { return max3 (p1->X(), p2->X(), p3->X()); }
void netrule :: LoadRule (istream & ist)
{
char buf[256];
char ch;
Point2d p;
INDEX_2 lin;
int i, j;
DenseMatrix tempoldutonewu(20, 20), tempoldutofreearea(20, 20),
tempoldutofreearealimit(20, 20);
tempoldutonewu = 0;
tempoldutofreearea = 0;
tempoldutofreearealimit = 0;
noldp = 0;
noldl = 0;
ist.get (buf, sizeof(buf), '"');
ist.get (ch);
ist.get (buf, sizeof(buf), '"');
ist.get (ch);
// if(name != NULL)
delete [] name;
name = new char[strlen (buf) + 1];
strcpy (name, buf);
//(*testout) << "name " << name << endl;
// (*mycout) << "Rule " << name << " found." << endl;
do
{
ist >> buf;
//(*testout) << "buf " << buf << endl;
if (strcmp (buf, "quality") == 0)
{
ist >> quality;
}
else if (strcmp (buf, "mappoints") == 0)
{
ist >> ch;
while (ch == '(')
{
ist >> p.X();
ist >> ch; // ','
ist >> p.Y();
ist >> ch; // ')'
points.Append (p);
noldp++;
tolerances.SetSize (noldp);
tolerances.Elem(noldp).f1 = 1.0;
tolerances.Elem(noldp).f2 = 0;
tolerances.Elem(noldp).f3 = 1.0;
ist >> ch;
while (ch != ';')
{
if (ch == '{')
{
ist >> tolerances.Elem(noldp).f1;
ist >> ch; // ','
ist >> tolerances.Elem(noldp).f2;
ist >> ch; // ','
ist >> tolerances.Elem(noldp).f3;
ist >> ch; // '}'
}
else if (ch == 'd')
{
// delpoints.Append (noldp);
ist >> ch; // 'e'
ist >> ch; // 'l'
}
inline void PpSmV (const Point2d & p1, double s,
const Vec2d & v, Point2d & p2)
{
p2.X() = p1.X() + s * v.X();
p2.Y() = p1.Y() + s * v.Y();
}
double Length2 () const
{ return sqr (p1->X() - p2->X()) +
sqr (p1->Y() - p2->Y()); }
Vec2d Delta () const { return Vec2d (p2->X()-p1->X(), p2->Y()-p1->Y()); }
double Length2 () const
{ return sqr (p1.X() - p2.X()) +
sqr (p1.Y() - p2.Y()); }
Vec2d Delta () const { return Vec2d (p2.X()-p1.X(), p2.Y()-p1.Y()); }
inline Point2d operator+ (const Point2d & p1, const Vec2d & v)
{
return Point2d (p1.X() + v.X(), p1.Y() + v.Y());
}
inline Point2d Center (const Point2d & p1, const Point2d & p2)
{
return Point2d ((p1.X() + p2.X()) / 2, (p1.Y() + p2.Y()) / 2);
}
double XMax() const { return max3 (p1.X(), p2.X(), p3.X()); }
inline void PmP (const Point2d & p1, const Point2d & p2, Vec2d & v)
{
v.X() = p1.X() - p2.X();
v.Y() = p1.Y() - p2.Y();
}
double XMin() const { return min3 (p1.X(), p2.X(), p3.X()); }
inline Point2d Center () const
{ return Point2d( (p1.X()+p2.X()+p3.X())/3, (p1.Y()+p2.Y()+p3.Y())/3); }
void Mesh::Refine()
{
// reduce 2nd order
size_t nb_vertices = ComputeNVertices();
points.resize(nb_vertices);
IndexPair_map<PointIndex> between(nb_vertices + 5);
size_t oldns = segments.size();
for (size_t si = 0; si < oldns; si++) {
const Segment& seg = segments[si];
const MeshPoint& p1 = points[seg[0]];
const MeshPoint& p2 = points[seg[1]];
IndexPair i2(seg[0], seg[1]);
i2.Sort();
PointIndex pi_new;
if (between.count(i2) == 1) {
pi_new = between[i2];
} else {
Point2d pnew;
pnew.X() = 0.5 * (p1.X() + p2.X());
pnew.Y() = 0.5 * (p1.Y() + p2.Y());
pi_new = AddPoint(pnew);
between[i2] = pi_new;
}
Segment ns1 = seg;
Segment ns2 = seg;
ns1[1] = pi_new;
ns2[0] = pi_new;
segments[si] = ns1;
AddSegment(ns2);
}
// refine surface elements
size_t oldnf = elements.size();
for (size_t sei = 0; sei < oldnf; sei++) {
int j, k;
const Element2d& el = elements[sei];
PointIndex pnums[6];
static int betw[3][3] = {{1, 2, 3},
{0, 2, 4},
{0, 1, 5}};
for (j = 0; j < 3; j++) {
pnums[j] = el.PointID(j);
}
for (j = 0; j < 3; j++) {
PointIndex pi1 = pnums[betw[j][0]];
PointIndex pi2 = pnums[betw[j][1]];
IndexPair i2(pi1, pi2);
i2.Sort();
if (between.count(i2) == 0) {
const MeshPoint& p1 = points[pi1];
const MeshPoint& p2 = points[pi2];
Point2d pnew;
pnew.X() = 0.5 * (p1.X() + p2.X());
pnew.Y() = 0.5 * (p1.Y() + p2.Y());
between[i2] = AddPoint(pnew);
}
pnums[3 + j] = between[i2];
}
static int reftab[4][3] = {{0, 5, 4},
{1, 3, 5},
{2, 4, 3},
{5, 3, 4}};
DomainIndex ind = el.FaceID();
for (j = 0; j < 4; j++) {
Element2d new_element;
for (k = 0; k < 3; k++) {
new_element.PointID(k) = pnums[reftab[j][k]];
}
new_element.SetFaceID(ind);
if (j == 0) {
elements[sei] = new_element;
} else {
AddElement(new_element);
}
}
}
ComputeNVertices();
RebuildSurfaceElementLists();
}
