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FEModifier.cpp
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/*This file is part of the FEBio Studio source code and is licensed under the MIT license
listed below.
See Copyright-FEBio-Studio.txt for details.
Copyright (c) 2021 University of Utah, The Trustees of Columbia University in
the City of New York, and others.
Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
SOFTWARE.*/
// FEModifier.cpp: implementation of the FEModifier class.
//
//////////////////////////////////////////////////////////////////////
#include "stdafx.h"
#include "FEModifier.h"
#include "FENNQuery.h"
#include <MeshLib/FENodeNodeList.h>
#include <MeshLib/FENodeElementList.h>
#include <MeshLib/FEFaceEdgeList.h>
#include "FELinearToQuadratic.h"
#include "FESplitModifier.h"
#include <GeomLib/GObject.h>
#include <stdarg.h>
#include <FECore/units.h>
#include <MeshLib/FEMeshBuilder.h>
#include <GeomLib/GGroup.h>
std::string FEModifier::m_error;
FEModifier::FEModifier(const char* sz) { SetName(sz); }
FEModifier::~FEModifier() {}
FSMesh* FEModifier::Apply(FSMesh* pm) { return nullptr; }
FSMesh* FEModifier::Apply(FSGroup* pg) { return Apply(pg->GetMesh()); }
FSMesh* FEModifier::Apply(GObject* po, FESelection* sel)
{
if ((po == nullptr) || (sel == nullptr)) return nullptr;
FSMesh* oldMesh = po->GetFEMesh();
if (oldMesh == nullptr) return nullptr;
FSMesh* newMesh = nullptr;
FEItemListBuilder* list(sel->CreateItemList());
FSGroup* pg = dynamic_cast<FSGroup*>(list);
if (pg && (pg->GetMesh() == oldMesh))
{
newMesh = Apply(pg);
}
delete list;
return newMesh;
}
FSMeshBase* FEModifier::ApplyModifier(FSMeshBase* pm) { return nullptr; }
bool FEModifier::SetError(const char* szerr, ...)
{
// get a pointer to the argument list
va_list args;
// copy to string
char sz[256] = {0};
va_start(args, szerr);
vsprintf(sz, szerr, args);
va_end(args);
m_error = std::string(sz);
return false;
}
std::string FEModifier::GetErrorString()
{
return m_error;
}
//=============================================================================
// FEPartitionSelection
//-----------------------------------------------------------------------------
FEPartitionSelection::FEPartitionSelection() : FEModifier("Partition")
{
AddBoolParam(true, "Create new Partition");
AddIntParam(1, "Assign to partition")->SetState(Param_VISIBLE | Param_PERSISTENT);
}
bool FEPartitionSelection::UpdateData(bool bsave)
{
if (bsave)
{
bool newPartition = GetBoolValue(0);
if (newPartition)
GetParam(1).SetState(Param_VISIBLE | Param_PERSISTENT);
else
GetParam(1).SetState(Param_VISIBLE | Param_EDITABLE | Param_PERSISTENT);
return true;
}
return false;
}
FSMesh* FEPartitionSelection::Apply(FSMesh* pm)
{
int gid = -1;
bool newPartition = GetBoolValue(0);
if (newPartition == false)
{
GObject* po = pm->GetGObject();
int pid = GetIntValue(1);
GPart* pg = po->FindPart(pid);
if (pg == nullptr) return nullptr;
gid = pg->GetLocalID();
}
FSMesh* newMesh = new FSMesh(*pm);
FEMeshBuilder meshBuilder(*newMesh);
meshBuilder.PartitionElementSelection(gid);
return newMesh;
}
FSMesh* FEPartitionSelection::Apply(FSGroup* pg)
{
FSMesh* oldMesh = pg->GetMesh();
if (oldMesh == 0) return 0;
int gid = -1;
bool newPartition = GetBoolValue(0);
if (newPartition == false)
{
GObject* po = oldMesh->GetGObject();
int pid = GetIntValue(1);
GPart* pg = po->FindPart(pid);
if (pg == nullptr) return nullptr;
gid = pg->GetLocalID();
}
FSMesh* newMesh = new FSMesh(*oldMesh);
FEMeshBuilder meshBuilder(*newMesh);
FSSurface* s = dynamic_cast<FSSurface*>(pg);
if (s)
{
meshBuilder.PartitionFaceSelection(gid);
}
FSElemSet* p = dynamic_cast<FSElemSet*>(pg);
if (p)
{
meshBuilder.PartitionElementSelection(gid);
}
FSNodeSet* n = dynamic_cast<FSNodeSet*>(pg);
if (n)
{
meshBuilder.PartitionNodeSet(n);
}
FSEdgeSet* e = dynamic_cast<FSEdgeSet*>(pg);
if (e)
{
meshBuilder.PartitionEdgeSelection(gid);
}
return newMesh;
}
//=============================================================================
// FERemoveDuplicateElements
//-----------------------------------------------------------------------------
FSMesh* FERemoveDuplicateElements::Apply(FSMesh* pm)
{
int i, j, k;
FSMesh* pnm = new FSMesh(*pm);
FSMesh& m = *pnm;
FSNodeElementList NEL; NEL.Build(&m);
int NE = m.Elements();
int NN = m.Nodes();
for (i=0; i<NE; ++i) m.Element(i).m_ntag = i;
// tag all duplicate elements
for (i=0; i<NN; ++i)
{
int ne = NEL.Valence(i);
for (j=0; j<ne; ++j)
{
FEElement_& ej = *NEL.Element(i, j);
if (ej.m_ntag != -1)
{
for (k=j+1; k<ne; ++k)
{
FEElement_& ek = *NEL.Element(i, k);
if ((ek.m_ntag!=-1) && (ej.is_equal(ek)))
{
ej.m_ntag = -1;
ek.m_ntag = -1;
}
}
}
}
}
// delete tagged elements
FEMeshBuilder meshBuilder(m);
meshBuilder.DeleteTaggedElements(-1);
return pnm;
}
//////////////////////////////////////////////////////////////////////
// FEFlattenFaces
//////////////////////////////////////////////////////////////////////
FSMesh* FEFlattenFaces::Apply(FSMesh *pm)
{
int i, j, ntag;
// create a new mesh
FSMesh* pnm = new FSMesh(*pm);
FSMesh& m = *pnm;
// tag all nodes
for (i=0; i<m.Nodes(); ++i) m.Node(i).m_ntag = 0;
for (i=0; i<m.Faces(); ++i)
{
FSFace& f = m.Face(i);
if (f.IsSelected())
{
for (j=0; j<f.Nodes(); ++j) m.Node(f.n[j]).m_ntag = 1;
}
}
// calculate the average normal
vec3d na;
if (!m_bun)
{
for (i=0; i<m.Faces(); ++i)
{
FSFace& f = m.Face(i);
if (f.IsSelected()) na += to_vec3d(f.m_fn);
}
}
else na = m_na;
// make sure our vector is normal
na.Normalize();
BOX box = m.GetBoundingBox();
double R = box.GetMaxExtent();
// find the lowest point
vec3d p = box.Center() + na*R*2;
double d0 = na*p, d;
for (i=0, ntag = 0; i<m.Nodes(); ++i)
{
FSNode& n = m.Node(i);
if (n.m_ntag)
{
d = na*n.r;
if (d < d0)
{
p = n.r;
d0 = d;
}
++ntag;
}
}
std::vector<int> tag(ntag);
std::vector<double> wgt(m.Nodes());
for (i=0, ntag = 0; i<m.Nodes(); ++i)
{
if (m.Node(i).m_ntag) tag[ntag++] = i;
}
// find the distance to project for the tagged nodes
for (i=0; i<m.Nodes(); ++i)
{
FSNode& n = m.Node(i);
if (n.m_ntag) wgt[i] = na*(n.r - p);
}
// find the distance to project for the non-tagged nodes
for (i=0; i<m.Nodes(); ++i)
{
FSNode& n = m.Node(i);
if (n.m_ntag == 0)
{
// find the closest tagged node
vec3d& r0 = n.r;
double dmin = 1e300;
int jmin = -1;
for (j=0; j<ntag; ++j)
{
vec3d& r1 = m.Node(tag[j]).r;
d = (r1-r0)*(r1-r0);
if (d < dmin) { dmin = d; jmin = tag[j]; }
}
assert(jmin != -1);
double f = 1 - sqrt(dmin)/m_rad;
wgt[i] = wgt[jmin]*f;
if (wgt[i] < 0) wgt[i] = 0;
}
}
// project all nodes
for (i=0; i<m.Nodes(); ++i)
{
FSNode& node = m.Node(i);
if (wgt[i] > 0.0) node.r -= na*wgt[i];
}
// update geometry
m.UpdateMesh();
return pnm;
}
//=============================================================================
// FEAlignNodes
//=============================================================================
FEAlignNodes::FEAlignNodes() : FEModifier("Align")
{
AddChoiceParam(0, "align", "align")->SetEnumNames("+X\0-X\0+Y\0-Y\0+Z\0-Z\0");
}
FSMesh* FEAlignNodes::Apply(FSMesh* pm)
{
int nalign = GetIntValue(0);
FSMesh* pnm = new FSMesh(*pm);
vec3d rc;
int iref = -1;
for (int i=0; i<pnm->Nodes(); ++i)
{
FSNode& node = pnm->Node(i);
vec3d ri = node.pos();
if (node.IsSelected())
{
if (iref == -1)
{
iref = i;
rc = ri;
}
else
{
switch (nalign)
{
case 0: if (ri.x > rc.x) rc.x = ri.x; break;
case 1: if (ri.x < rc.x) rc.x = ri.x; break;
case 2: if (ri.y > rc.y) rc.y = ri.y; break;
case 3: if (ri.y < rc.y) rc.y = ri.y; break;
case 4: if (ri.z > rc.z) rc.z = ri.z; break;
case 5: if (ri.z < rc.z) rc.z = ri.z; break;
}
}
}
}
if (iref == -1) { delete pnm; return 0; }
for (int i = 0; i<pnm->Nodes(); ++i)
{
FSNode& node = pnm->Node(i);
if (node.IsSelected())
{
vec3d ri = node.pos();
switch (nalign)
{
case 0:
case 1: ri.x = rc.x; break;
case 2:
case 3: ri.y = rc.y; break;
case 4:
case 5: ri.z = rc.z; break;
}
node.pos(ri);
}
}
return pnm;
}
//////////////////////////////////////////////////////////////////////
// FESetShellThickness
//////////////////////////////////////////////////////////////////////
FESetShellThickness::FESetShellThickness() : FEModifier("Set shell thickness")
{
AddDoubleParam(0, "h", "shell thickness");
}
FSMesh* FESetShellThickness::Apply(FSMesh *pm)
{
FSMesh* pnm = new FSMesh(*pm);
double thick = GetFloatValue(0);
double percent = 0; // TODO: Add a parameter for this
// tag selected elements
int nselect = 0;
for (int i = 0; i < pnm->Elements(); ++i)
{
FSElement& el = pnm->Element(i);
if (el.IsSelected()) {
el.m_ntag = 1; nselect++;
}
else el.m_ntag = 0;
}
// if no elements are selected, let's tag the entire mesh
if (nselect == 0) pnm->TagAllElements(1);
if (thick != 0 )
{
for (int i=0; i<pnm->Elements(); ++i)
{
FSElement& el = pnm->Element(i);
if (el.m_ntag == 1)
{
double* h = el.m_h;
for (int j=0; j<el.Nodes(); ++j) h[j] = thick;
}
}
}
else if (percent != 0)
{
for (int i=0; i<pnm->Elements(); ++i)
{
FSElement& el = pnm->Element(i);
if (el.m_ntag == 1)
{
double* h = el.m_h;
double H = h[0] * percent;
for (int j=0; j<el.Nodes(); ++j) h[j] = H;
}
}
}
return pnm;
}
//------------------------------------------------------------------------
// FESetFiberOrientation
//------------------------------------------------------------------------
FESetFiberOrientation::FESetFiberOrientation() : FEModifier("Set fiber orientation")
{
AddChoiceParam(0, "generator")->SetEnumNames("vector\0node numbering\0");
AddVecParam(vec3d(1,0,0), "vector");
AddIntParam(0, "n0")->SetState(0);
AddIntParam(1, "n1")->SetState(0);
}
bool FESetFiberOrientation::UpdateData(bool bsave)
{
if (bsave)
{
int n = GetIntValue(0);
switch (n)
{
case 0:
GetParam(1).SetState(Param_ALLFLAGS);
GetParam(2).SetState(0);
GetParam(3).SetState(0);
break;
case 1:
GetParam(1).SetState(0);
GetParam(2).SetState(Param_ALLFLAGS);
GetParam(3).SetState(Param_ALLFLAGS);
break;
}
return true;
}
return false;
}
FSMesh* FESetFiberOrientation::Apply(FSMesh *pm)
{
FSMesh* pnm = new FSMesh(*pm);
int ngen = GetIntValue(0);
switch (ngen)
{
case 0: SetFiberVector(pnm); break;
case 1: SetFiberNodes (pnm); break;
default:
delete pnm;
assert(false);
return nullptr;
}
return pnm;
}
void FESetFiberOrientation::SetFiberVector(FSMesh *pm)
{
vec3d r = GetVecValue(1);
r.Normalize();
int nsel = 0;
for (int i=0; i<pm->Elements(); ++i)
if (pm->Element(i).IsSelected()) nsel++;
for (int i=0; i<pm->Elements(); ++i)
{
FSElement& el = pm->Element(i);
if (el.IsSelected() || (nsel==0))
el.m_fiber = r;
}
}
void FESetFiberOrientation::SetFiberNodes(FSMesh *pm)
{
int nsel = 0;
for (int i = 0; i<pm->Elements(); ++i)
if (pm->Element(i).IsSelected()) nsel++;
vec3d r1, r2, n;
int node0 = GetIntValue(2);
int node1 = GetIntValue(3);
for (int i = 0; i<pm->Elements(); ++i)
{
FSElement& el = pm->Element(i);
if (el.IsSelected() || (nsel == 0))
{
r1 = pm->Node(el.m_node[ node0 ]).r;
r2 = pm->Node(el.m_node[ node1 ]).r;
n = r2 - r1;
n.Normalize();
el.m_fiber = n;
}
}
}
//------------------------------------------------------------------------
// FESetAxesOrientation
//------------------------------------------------------------------------
FESetAxesOrientation::FESetAxesOrientation() : FEModifier("Set axes orientation")
{
AddChoiceParam(0, "generator")->SetEnumNames("vector\0node numbering\0angles\0cylindrical\0<none>\0");
AddVecParam(vec3d(1, 0, 0), "a");
AddVecParam(vec3d(0, 1, 0), "d");
AddIntParam(1, "n0")->SetState(0);
AddIntParam(2, "n1")->SetState(0);
AddIntParam(4, "n2")->SetState(0);
AddScienceParam(0, UNIT_DEGREE, "theta");
AddScienceParam(90, UNIT_DEGREE, "phi");
}
bool FESetAxesOrientation::UpdateData(bool bsave)
{
if (bsave)
{
int n = GetIntValue(0);
switch (n)
{
case 0:
case 3:
GetParam(1).SetState(Param_ALLFLAGS);
GetParam(2).SetState(Param_ALLFLAGS);
GetParam(3).SetState(0);
GetParam(4).SetState(0);
GetParam(5).SetState(0);
GetParam(6).SetState(0);
GetParam(7).SetState(0);
break;
case 1:
GetParam(1).SetState(0);
GetParam(2).SetState(0);
GetParam(3).SetState(Param_ALLFLAGS);
GetParam(4).SetState(Param_ALLFLAGS);
GetParam(5).SetState(Param_ALLFLAGS);
GetParam(6).SetState(0);
GetParam(7).SetState(0);
break;
case 2:
GetParam(1).SetState(0);
GetParam(2).SetState(0);
GetParam(3).SetState(0);
GetParam(4).SetState(0);
GetParam(5).SetState(0);
GetParam(6).SetState(Param_ALLFLAGS);
GetParam(7).SetState(Param_ALLFLAGS);
break;
case 4:
GetParam(1).SetState(0);
GetParam(2).SetState(0);
GetParam(3).SetState(0);
GetParam(4).SetState(0);
GetParam(5).SetState(0);
GetParam(6).SetState(0);
GetParam(7).SetState(0);
break;
default:
return false;
}
return true;
}
else return false;
}
FSMesh* FESetAxesOrientation::Apply(FSMesh *pm)
{
FSMesh* pnm = new FSMesh(*pm);
pnm->TagAllElements(-1);
int nsel = 0;
for (int i=0; i<pnm->Elements(); ++i)
{
FSElement& el = pnm->Element(i);
if (el.IsSelected())
{
el.m_ntag = 1;
nsel++;
}
}
if (nsel == 0) pnm->TagAllElements(1);
int ngen = GetIntValue(0);
bool bret = false;
switch (ngen)
{
case 0: bret = SetAxesVectors(pnm); break;
case 1: bret = SetAxesNodes(pnm); break;
case 2: bret = SetAxesAngles(pnm); break;
case 3: bret = SetAxesCylindrical(pnm); break;
case 4: bret = ClearAxes(pnm); break;
// case 2: SetAxesCopy (pnm); break;
default:
assert(false);
}
if (bret == false)
{
delete pnm;
pnm = 0;
}
return pnm;
}
bool FESetAxesOrientation::SetAxesVectors(FSMesh *pm)
{
vec3d a = GetVecValue(1);
vec3d d = GetVecValue(2);
vec3d c = a^d;
vec3d b = c^a;
a.Normalize();
b.Normalize();
c.Normalize();
for (int i=0; i<pm->Elements(); ++i)
{
FSElement& el = pm->Element(i);
if (el.m_ntag == 1)
{
mat3d& m = el.m_Q;
m.zero();
m[0][0] = a.x; m[0][1] = b.x; m[0][2] = c.x;
m[1][0] = a.y; m[1][1] = b.y; m[1][2] = c.y;
m[2][0] = a.z; m[2][1] = b.z; m[2][2] = c.z;
el.m_Qactive = true;
}
}
return true;
}
bool FESetAxesOrientation::SetAxesNodes(FSMesh *pm)
{
int node[3] = {0, 1, 2};
node[0] = GetIntValue(3)-1;
node[1] = GetIntValue(4)-1;
node[2] = GetIntValue(5)-1;
vec3d r1, r2, r3, a, b, c, d;
for (int i=0; i<pm->Elements(); ++i)
{
FSElement& el = pm->Element(i);
if (el.m_ntag == 1)
{
int neln = el.Nodes();
if ((node[0] < 0) || (node[0] >= neln)) return false;
if ((node[1] < 0) || (node[1] >= neln)) return false;
if ((node[2] < 0) || (node[2] >= neln)) return false;
r1 = pm->Node(el.m_node[ node[0] ]).r;
r2 = pm->Node(el.m_node[ node[1] ]).r;
r3 = pm->Node(el.m_node[ node[2] ]).r;
a = r2 - r1;
d = r3 - r1;
c = a^d;
b = c^a;
a.Normalize();
b.Normalize();
c.Normalize();
mat3d& m = el.m_Q;
m.zero();
m[0][0] = a.x; m[0][1] = b.x; m[0][2] = c.x;
m[1][0] = a.y; m[1][1] = b.y; m[1][2] = c.y;
m[2][0] = a.z; m[2][1] = b.z; m[2][2] = c.z;
el.m_Qactive = true;
}
}
return true;
}
bool FESetAxesOrientation::SetAxesAngles(FSMesh *pm)
{
double theta = GetFloatValue(6)*PI/180;
double phi = GetFloatValue(7)*PI/180;
for (int i=0; i<pm->Elements(); ++i)
{
FSElement& el = pm->Element(i);
if (el.m_ntag == 1)
{
mat3d& m = el.m_Q;
m.zero();
m[0][0] = sin(phi)*cos(theta); m[0][1] = -sin(theta); m[0][2] = -cos(phi)*cos(theta);
m[1][0] = sin(phi)*sin(theta); m[1][1] = cos(theta); m[1][2] = -cos(phi)*sin(theta);
m[2][0] = cos(phi); m[2][1] = 0; m[2][2] = sin(phi);
el.m_Qactive = true;
}
}
return true;
}
bool FESetAxesOrientation::SetAxesCylindrical(FSMesh* pm)
{
vec3d c(0, 0, 0); // center of axis
vec3d a = GetVecValue(1); // axis
vec3d d = GetVecValue(2); // reference vector
for (int i = 0; i < pm->Elements(); ++i)
{
FSElement& el = pm->Element(i);
if (el.m_ntag == 1)
{
vec3d p = pm->ElementCenter(el);
// find the vector to the axis
vec3d b = (p - c) - a * (a*(p - c)); b.Normalize();
// setup the rotation vector
vec3d x_unit(vec3d(1, 0, 0));
quatd q(x_unit, b);
// rotate the reference vector
vec3d r(d); r.Normalize();
q.RotateVector(r);
// setup a local coordinate system with r as the x-axis
vec3d d(0, 1, 0);
q.RotateVector(d);
if (fabs(d*r) > 0.99)
{
d = vec3d(0, 0, 1);
q.RotateVector(d);
}
// find basis vectors
vec3d e1 = r;
vec3d e3 = (e1 ^ d); e3.Normalize();
vec3d e2 = e3 ^ e1;
// setup rotation matrix
mat3d& Q = el.m_Q;
Q[0][0] = e1.x; Q[0][1] = e2.x; Q[0][2] = e3.x;
Q[1][0] = e1.y; Q[1][1] = e2.y; Q[1][2] = e3.y;
Q[2][0] = e1.z; Q[2][1] = e2.z; Q[2][2] = e3.z;
el.m_Qactive = true;
}
}
return true;
}
bool FESetAxesOrientation::ClearAxes(FSMesh* pm)
{
for (int i = 0; i < pm->Elements(); ++i)
{
FSElement& el = pm->Element(i);
if (el.m_ntag == 1)
{
el.m_Qactive = false;
}
}
return true;
}
bool FESetAxesOrientation::SetAxesCopy(FSMesh *pm)
{
/* assert(m_pms);
int i, j, n;
// create the array of source data
int NY = m_pms->Elements();
vector<vec3d> Y(NY);
for (i=0; i<NY; ++i)
{
FSElement& el = m_pms->Element(i);
n = el.Nodes();
vec3d c(0,0,0);
for (j=0; j<n; ++j) c += m_pms->Node(el.m_node[j]).r;
c /= n;
Y[i] = c;
}
// set up the nearest node search
FSNNQuery q(&Y);
q.Init();
// do the mapping
int N = pm->Elements();
for (i=0; i<N; ++i)
{
FSElement& el = pm->Element(i);
n = el.Nodes();
vec3d c(0,0,0);
for (j=0; j<n; ++j) c += pm->Node(el.m_node[j]).r;
c /= n;
n = q.Find(c);
FSElement& els = m_pms->Element(n);
el.m_Q = els.m_Q;
el.m_Qactive = els.m_Qactive;
// if the element is a shell, we project the fiber on the shell
if (el.IsShell())
{
vec3d x[4];
n = el.Nodes();
for (j=0; j<n; ++j) x[j] = pm->Node(el.m_node[j]).r;
vec3d e1, e2;
if (n==4)
{
e1 = -x[0] + x[1] + x[2] - x[3];
e2 = -x[0] - x[1] + x[2] + x[3];
}
else
{
e1 = x[1] - x[0];
e2 = x[2] - x[0];
}
vec3d f = e1^e2;
f.Normalize();
el.m_fiber -= f*(f*el.m_fiber);
}
}
*/
return true;
}
//=============================================================================
// FEMirrorMesh
//-----------------------------------------------------------------------------
FEMirrorMesh::FEMirrorMesh() : FEModifier("Mirror")
{
AddIntParam(0, "plane", "Mirror plane")->SetEnumNames("X-plane\0Y-plane\0Z-plane\0face selection\0custom\0");
AddVecParam(vec3d(0,0,0), "center", "Center");
AddVecParam(vec3d(1,0,0), "normal", "Normal")->SetVisible(false);
}
bool FEMirrorMesh::UpdateData(bool bsave)
{
if (bsave)
{
Param& p = GetParam(2);
int n = GetIntValue(0);
if ((n == 4) && (p.IsVisible() == false))
{
p.SetVisible(true);
return true;
}
else if ((n != 4) && p.IsVisible())
{
p.SetVisible(false);
return true;
}
}
return false;
}
FSMesh* FEMirrorMesh::Apply(FSMesh *pm)
{
int nplane = GetIntValue(0);
vec3d rc = GetVecValue(1);
vec3d N;
switch (nplane)
{
case 0: N = vec3d(1, 0, 0); break;
case 1: N = vec3d(0, 1, 0); break;
case 2: N = vec3d(0, 0, 1); break;
case 3:
{
// for user selection we need to figure out a center and normal
FEFaceSelection* sel = new FEFaceSelection(pm);
if (sel->Count() == 0) return nullptr;
BOX b = sel->GetBoundingBox();
rc += b.Center();
for (int i = 0; i < sel->Count(); ++i)
{
FSFace& face = *sel->Face(i);
N += to_vec3d(face.m_fn);
}
N.Normalize();
}
break;
case 4:
N = GetVecValue(2);
N.Normalize();
if (N.norm() == 0.0) return nullptr;
break;
default:
assert(false);
return nullptr;
}
FSMesh* pmn = new FSMesh(*pm);
// mirror the nodes
for (int i=0; i<pmn->Nodes(); ++i)
{
FSNode& n = pmn->Node(i);
vec3d r = n.r - rc;
n.r = rc + (r - N*(2.0*(N*r)));
}
// invert elements
FEMeshBuilder meshBuilder(*pmn);
meshBuilder.InvertSelectedElements();
return pmn;
}
//=============================================================================
// FEQuad2Tri
//-----------------------------------------------------------------------------
FSMesh* FEQuad2Tri::Apply(FSMesh *pm)
{
int i;
int NN = pm->Nodes();
int NE0 = pm->Elements();
int NF0 = pm->Faces();
int NC = pm->Edges();
// count number of elements
int NE1 = 0;
for (i=0; i<NE0; ++i)
{
if (pm->Element(i).IsType(FE_QUAD4)) NE1 += 2; else NE1++;
}
// count number of faces
int NF1 = 0;
for (i=0; i<NF0; ++i)
{
if (pm->Face(i).Nodes() == 4) NF1 += 2; else NF1++;