MeshEditRestore::MeshEditRestore (EditMeshData* md, EditMeshMod *mod, MeshDelta & changer) {
meshData = md;
this->mod = mod;
mapChanges.SetCount (NUM_HIDDENMAPS + changer.GetMapNum());
changeFlags = changer.ChangeFlags (&mapChanges);
updateMD = md->updateMD;
if (updateMD) changeFlags = MDELTA_ALL;
omdelta.CopyMDChannels (meshData->mdelta, changeFlags, &mapChanges);
}
////////////////////////////////// MESH WELDER ////////////////////
static void
WeldMesh(Mesh *mesh, float thresh)
{
if (thresh == 0.0f)
thresh = (float)1e-30; // find only the coincident ones BitArray vset, eset;
BitArray vset;
vset.SetSize(mesh->numVerts);
vset.SetAll();
MeshDelta md;
md.WeldByThreshold(*mesh, vset, thresh);
md.Apply(*mesh);
}
void EChamferMod::ModifyTriObject (TimeValue t, ModContext &mc, TriObject *tobj) {
Mesh &mesh = tobj->GetMesh();
Interval iv = FOREVER;
float amount;
int i, j;
m_pblock->GetValue (kEchAmount, t, amount, iv);
// Convert existing selection (at whatever level) to edge selection:
BitArray targetEdges;
targetEdges.SetSize (mesh.numFaces*3);
targetEdges.ClearAll ();
switch (mesh.selLevel) {
case MESH_OBJECT:
targetEdges.SetAll ();
break;
case MESH_VERTEX:
for (i=0; i<mesh.numFaces; i++) {
for (j=0; j<3; j++) {
if (!mesh.vertSel[mesh.faces[i].v[j]]) continue;
// Don't select invisible edges:
if (mesh.faces[i].getEdgeVis(j)) targetEdges.Set (i*3+j);
if (mesh.faces[i].getEdgeVis((j+2)%3)) targetEdges.Set (i*3+(j+2)%3);
}
}
break;
case MESH_EDGE:
targetEdges = mesh.edgeSel;
break;
case MESH_FACE:
for (i=0; i<mesh.numFaces; i++) {
if (!mesh.faceSel[i]) continue;
for (j=0; j<3; j++) {
// Don't select invisible edges:
if (mesh.faces[i].getEdgeVis(j)) targetEdges.Set (i*3+j);
}
}
break;
}
// Chamfer the edges -- this just does the topological operation.
MeshDelta tmd;
tmd.InitToMesh (mesh);
MeshTempData temp;
temp.SetMesh (&mesh);
MeshChamferData *mcd = temp.ChamferData();
AdjEdgeList *ae = temp.AdjEList();
tmd.ChamferEdges (mesh, targetEdges, *mcd, ae);
tmd.Apply (mesh);
// Reset the meshdelta, temp data to deal with the post-chamfered topology:
tmd.InitToMesh (mesh);
temp.Invalidate (TOPO_CHANNEL); // Generates a new edge list, but preserves chamfer data
temp.SetMesh (&mesh);
tmd.ChamferMove (mesh, *temp.ChamferData(), amount, temp.AdjEList());
tmd.Apply (mesh);
tobj->UpdateValidity(GEOM_CHAN_NUM,iv);
}
void SymmetryMod::SliceTriObject (Mesh & mesh, Point3 & N, float offset) {
// Steve Anderson 9/14/2002
// Using the new "MESH_TEMP_1" flag to override Slice selection behavior,
// which is undesirable here.
mesh.SetFlag (MESH_TEMP_1);
MeshDelta slicemd;
slicemd.Slice (mesh, N, offset, false, true);
slicemd.Apply (mesh);
mesh.ClearFlag (MESH_TEMP_1);
// We need to strip out faces on the mirror plane itself.
// (These aren't always removed by slice.)
// Mark vertices at the plane boundary:
BitArray targetVerts;
targetVerts.SetSize (mesh.numVerts);
targetVerts.ClearAll ();
for (int i=0; i<mesh.numVerts; i++) {
float dist = DotProd (N, mesh.verts[i]) - offset;
if (fabsf(dist) > MNEPS) continue;
targetVerts.Set (i);
}
BitArray delFaces, delVerts;
delFaces.SetSize (mesh.numFaces);
for (int i=0; i<mesh.numFaces; i++) {
int j;
for (j=0; j<3; j++) {
if (!targetVerts[mesh.faces[i].v[j]]) break;
}
if (j<3) continue;
// Face needs to be deleted.
delFaces.Set (i);
}
mesh.DeleteFaceSet (delFaces, &delVerts);
mesh.DeleteVertSet (delVerts);
}
void bhkRigidBodyModifier::BuildColStrips(Mesh& mesh)
{
MeshDelta tmd (mesh);
tmd.Apply(mesh);
}
