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geom/src/GEOMImpl/GEOMImpl_Block6Explorer.cxx
vsr 5b3622aa23 Merge from V6_main 01/04/2013
2013-04-01 12:25:01 +00:00

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// Copyright (C) 2007-2013 CEA/DEN, EDF R&D, OPEN CASCADE
//
// Copyright (C) 2003-2007 OPEN CASCADE, EADS/CCR, LIP6, CEA/DEN,
// CEDRAT, EDF R&D, LEG, PRINCIPIA R&D, BUREAU VERITAS
//
// This library is free software; you can redistribute it and/or
// modify it under the terms of the GNU Lesser General Public
// License as published by the Free Software Foundation; either
// version 2.1 of the License.
//
// This library is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
// Lesser General Public License for more details.
//
// You should have received a copy of the GNU Lesser General Public
// License along with this library; if not, write to the Free Software
// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
//
// See http://www.salome-platform.org/ or email : webmaster.salome@opencascade.com
//
#include <Standard_Stream.hxx>
#include <GEOMImpl_Block6Explorer.hxx>
#include <ShHealOper_ShapeProcess.hxx>
#include "utilities.h"
#include <Basics_OCCTVersion.hxx>
#include <BRep_Tool.hxx>
#include <BRep_TFace.hxx>
#include <BRep_Builder.hxx>
#include <BRepLib.hxx>
#include <BRepLib_FindSurface.hxx>
#include <BRepTools.hxx>
#include <BRepTools_WireExplorer.hxx>
#include <BRepOffsetAPI_ThruSections.hxx>
#include <BRepOffsetAPI_MakeFilling.hxx>
#include <BRepCheck_Analyzer.hxx>
#include <BRepBuilderAPI_Copy.hxx>
#include <BRepBuilderAPI_MakeEdge.hxx>
#include <BRepBuilderAPI_MakeWire.hxx>
#include <BRepBuilderAPI_MakeFace.hxx>
#include <BRepBuilderAPI_Transform.hxx>
#include <TopAbs.hxx>
#include <TopoDS.hxx>
#include <TopoDS_Shape.hxx>
#include <TopoDS_Edge.hxx>
#include <TopoDS_Wire.hxx>
#include <TopoDS_Solid.hxx>
#include <TopExp.hxx>
#include <TopExp_Explorer.hxx>
#include <TopTools_MapOfShape.hxx>
#include <TopTools_ListOfShape.hxx>
#include <TopTools_ListIteratorOfListOfShape.hxx>
#include <TopTools_IndexedMapOfShape.hxx>
#include <TopTools_IndexedDataMapOfShapeListOfShape.hxx>
#include <Geom_Curve.hxx>
#include <Geom_TrimmedCurve.hxx>
#include <GeomFill_Generator.hxx>
#include <gce_MakePln.hxx>
#include <Precision.hxx>
#include <gp_Pnt.hxx>
#include <gp_Pln.hxx>
#include <TColgp_Array1OfPnt.hxx>
#include <StdFail_NotDone.hxx>
#include <Standard_NullObject.hxx>
#include <Standard_TypeMismatch.hxx>
#include <Standard_ConstructionError.hxx>
#include <Standard_NoSuchObject.hxx>
#define NBFACES 6
#define NBEDGES 12
#define NBVERTS 8
#define PLANAR_FACE_MAX_TOLERANCE 1e-06
static Standard_Integer mod4 (Standard_Integer nb)
{
if (nb <= 0) return nb + 4;
if (nb > 4) return nb - 4;
return nb;
}
static Standard_Integer edge_id (const Standard_Integer theFaceID,
const Standard_Integer theEdgeNB)
{
static Standard_Integer edge_ids[NBFACES][4] = {
{ 1, 2, 3, 4 }, // face 1
{ 5, 6, 7, 8 }, // face 2
{ 9, 5, 10, 1 }, // face 3
{ 12, 7, 11, 3 }, // face 4
{ 4, 12, 8, 9 }, // face 5
{ 2, 11, 6, 10 } }; // face 6
return edge_ids[theFaceID - 1][theEdgeNB - 1];
}
static Standard_Integer side_edge_id (const Standard_Integer theEdgeNB)
{
static Standard_Integer side_edge_ids[4] = {9, 10, 11, 12};
return side_edge_ids[theEdgeNB - 1];
}
static Standard_Integer vertex_id (const Standard_Integer theFaceID,
const Standard_Integer theVertexNB)
{
static Standard_Integer vertex_ids[NBFACES][4] = {
{ 1, 2, 3, 4 }, // face 1
{ 5, 6, 7, 8 }, // face 2
{ 1, 5, 6, 2 }, // face 3
{ 4, 8, 7, 3 }, // face 4
{ 1, 4, 8, 5 }, // face 5
{ 2, 3, 7, 6 } }; // face 6
return vertex_ids[theFaceID - 1][theVertexNB - 1];
}
static Standard_Integer vertex_id_edge (const Standard_Integer theEdgeID, // [1,12]
const Standard_Integer theVertexNB) // [1,2]
{
static Standard_Integer vertex_ids_edge[NBEDGES][2] = {
{1, 2}, // edge 1
{2, 3}, // edge 2
{3, 4}, // edge 3
{4, 1}, // edge 4
{5, 6}, // edge 5
{6, 7}, // edge 6
{7, 8}, // edge 7
{8, 5}, // edge 8
{1, 5}, // edge 9
{2, 6}, // edge 10
{3, 7}, // edge 11
{4, 8} }; // edge 12
return vertex_ids_edge[theEdgeID - 1][theVertexNB - 1];
}
static Standard_Integer face_id_edges (const Standard_Integer theEdge1ID, // [1,12]
const Standard_Integer theEdge2ID) // [1,12]
{
static Standard_Integer face_ids_edges[NBEDGES][NBEDGES] = {
// 1 2 3 4 5 6 7 8 9 10 11 12
{ 0, 1, 1, 1, 3, 0, 0, 0, 3, 3, 0, 0 }, // edge 1
{ 1, 0, 1, 1, 0, 6, 0, 0, 0, 6, 6, 0 }, // edge 2
{ 1, 1, 0, 1, 0, 0, 4, 0, 0, 0, 4, 4 }, // edge 3
{ 1, 1, 1, 0, 0, 0, 0, 5, 5, 0, 0, 5 }, // edge 4
{ 3, 0, 0, 0, 0, 2, 2, 2, 3, 3, 0, 0 }, // edge 5
{ 0, 6, 0, 0, 2, 0, 2, 2, 0, 6, 6, 0 }, // edge 6
{ 0, 0, 4, 0, 2, 2, 0, 2, 0, 0, 4, 4 }, // edge 7
{ 0, 0, 0, 5, 2, 2, 2, 0, 5, 0, 0, 5 }, // edge 8
{ 3, 0, 0, 5, 3, 0, 0, 5, 0, 3, 0, 5 }, // edge 9
{ 3, 6, 0, 0, 3, 6, 0, 0, 3, 0, 6, 0 }, // edge 10
{ 0, 6, 4, 0, 0, 6, 4, 0, 0, 6, 0, 4 }, // edge 11
{ 0, 0, 4, 5, 0, 0, 4, 5, 5, 0, 4, 0 } }; // edge 12
return face_ids_edges[theEdge1ID - 1][theEdge2ID - 1];
}
static Standard_Integer edge_id_vertices (const Standard_Integer theVertex1ID, // [1,8]
const Standard_Integer theVertex2ID) // [1,8]
{
static Standard_Integer edge_ids_vertices[NBVERTS][NBVERTS] = {
// 1 2 3 4 5 6 7 8
{ 0, 1, 0, 4, 9, 0, 0, 0}, // vertex 1
{ 1, 0, 2, 0, 0, 10, 0, 0}, // vertex 2
{ 0, 2, 0, 3, 0, 0, 11, 0}, // vertex 3
{ 4, 0, 3, 0, 0, 0, 0, 12}, // vertex 4
{ 9, 0, 0, 0, 0, 5, 0, 8}, // vertex 5
{ 0, 10, 0, 0, 5, 0, 6, 0}, // vertex 6
{ 0, 0, 11, 0, 0, 6, 0, 7}, // vertex 7
{ 0, 0, 0, 12, 8, 0, 7, 0} }; // vertex 8
return edge_ids_vertices[theVertex1ID - 1][theVertex2ID - 1];
}
static Standard_Integer edge_id_faces (const Standard_Integer theFace1ID, // [1,6]
const Standard_Integer theFace2ID) // [1,6]
{
static Standard_Integer edge_ids_faces[NBFACES][NBFACES] = {
// 1 2 3 4 5 6
{ 0, 0, 1, 3, 4, 2 }, // face 1
{ 0, 0, 5, 7, 8, 6 }, // face 2
{ 1, 5, 0, 0, 9, 10 }, // face 3
{ 3, 7, 0, 0, 12, 11 }, // face 4
{ 4, 8, 9, 12, 0, 0 }, // face 5
{ 2, 6, 10, 11, 0, 0 } }; // face 6
return edge_ids_faces[theFace1ID - 1][theFace2ID - 1];
}
//=======================================================================
//function : GEOMImpl_Block6Explorer
//purpose : Constructor
//=======================================================================
GEOMImpl_Block6Explorer::GEOMImpl_Block6Explorer ()
: myFaces(1,NBFACES), myEdges(1,NBEDGES), myVertices(1,NBVERTS)
{
}
//=======================================================================
//function : GetVertex
//purpose :
//=======================================================================
TopoDS_Shape GEOMImpl_Block6Explorer::GetVertex (const Standard_Integer theVertexID)
{
TopoDS_Shape aNullShape;
if (theVertexID < 1 || theVertexID > NBVERTS) return aNullShape;
return myVertices(theVertexID);
}
//=======================================================================
//function : GetVertexID
//purpose :
//=======================================================================
Standard_Integer GEOMImpl_Block6Explorer::GetVertexID (const TopoDS_Shape& theVertex)
{
for (Standard_Integer id = 1; id <= NBVERTS; id++) {
if (theVertex.IsSame(myVertices(id))) return id;
}
Standard_NoSuchObject::Raise("The Vertex does not belong to the Block");
return 0;
}
//=======================================================================
//function : GetVertexID
//purpose :
//=======================================================================
Standard_Integer GEOMImpl_Block6Explorer::GetVertexID (const Standard_Integer theFaceID,
const Standard_Integer theVertexNB)
{
return vertex_id(theFaceID, theVertexNB);
}
//=======================================================================
//function : GetVertexOnEdgeID
//purpose :
//=======================================================================
Standard_Integer GEOMImpl_Block6Explorer::GetVertexOnEdgeID
(const Standard_Integer theEdgeID,
const Standard_Integer theVertexNB)
{
return vertex_id_edge(theEdgeID, theVertexNB);
}
//=======================================================================
//function : GetEdge
//purpose :
//=======================================================================
TopoDS_Shape GEOMImpl_Block6Explorer::GetEdge (const Standard_Integer theEdgeID,
const Standard_Boolean doMake)
{
TopoDS_Shape aNullShape;
if (theEdgeID < 1 || theEdgeID > NBEDGES) return aNullShape;
if (myEdges(theEdgeID).IsNull() && doMake) {
// Create the required edge as a linear segment between
// corresponding vertices and put it in the Block's edges
BRepBuilderAPI_MakeEdge ME (TopoDS::Vertex(myVertices(vertex_id_edge(theEdgeID, 1))),
TopoDS::Vertex(myVertices(vertex_id_edge(theEdgeID, 2))));
if (!ME.IsDone()) {
Standard_ConstructionError::Raise("Edge construction failed");
}
myEdges(theEdgeID) = ME.Shape();
}
return myEdges(theEdgeID);
}
//=======================================================================
//function : GetEdgeID
//purpose :
//=======================================================================
Standard_Integer GEOMImpl_Block6Explorer::GetEdgeID (const TopoDS_Shape& theEdge)
{
for (Standard_Integer id = 1; id <= NBEDGES; id++) {
if (theEdge.IsSame(myEdges(id))) return id;
}
Standard_NoSuchObject::Raise("The Edge does not belong to the Block");
return 0;
}
//=======================================================================
//function : GetEdgeID
//purpose :
//=======================================================================
Standard_Integer GEOMImpl_Block6Explorer::GetEdgeID (const Standard_Integer theFaceID,
const Standard_Integer theEdgeNB)
{
return edge_id(theFaceID, theEdgeNB);
}
//=======================================================================
//function : FindEdgeID
//purpose :
//=======================================================================
Standard_Integer GEOMImpl_Block6Explorer::FindEdgeID (const Standard_Integer theVertex1ID,
const Standard_Integer theVertex2ID)
{
return edge_id_vertices(theVertex1ID, theVertex2ID);
}
//=======================================================================
//function : FindCommonEdgeID
//purpose :
//=======================================================================
Standard_Integer GEOMImpl_Block6Explorer::FindCommonEdgeID
(const Standard_Integer theFace1ID,
const Standard_Integer theFace2ID)
{
return edge_id_faces(theFace1ID, theFace2ID);
}
//=======================================================================
//function : GetFace
//purpose :
//=======================================================================
TopoDS_Shape GEOMImpl_Block6Explorer::GetFace (const Standard_Integer theFaceID,
const Standard_Boolean doMake)
{
TopoDS_Shape aNullShape;
if (theFaceID < 1 || theFaceID > NBFACES) return aNullShape;
if (myFaces(theFaceID).IsNull() && doMake) {
// Create the required face between
// corresponding edges and put it in the Block's faces
TopoDS_Shape E1 = GetEdge(edge_id(theFaceID, 1), doMake);
TopoDS_Shape E2 = GetEdge(edge_id(theFaceID, 2), doMake);
TopoDS_Shape E3 = GetEdge(edge_id(theFaceID, 3), doMake);
TopoDS_Shape E4 = GetEdge(edge_id(theFaceID, 4), doMake);
BRepBuilderAPI_MakeWire MW (TopoDS::Edge(E1),
TopoDS::Edge(E2),
TopoDS::Edge(E3),
TopoDS::Edge(E4));
if (!MW.IsDone()) {
Standard_ConstructionError::Raise("Wire construction failed");
}
TopoDS_Shape aFace;
MakeFace(MW, Standard_False, aFace);
if (aFace.IsNull()) {
Standard_ConstructionError::Raise("Face construction failed");
}
myFaces(theFaceID) = aFace;
}
return myFaces(theFaceID);
}
//=======================================================================
//function : GetFaceID
//purpose :
//=======================================================================
Standard_Integer GEOMImpl_Block6Explorer::GetFaceID (const TopoDS_Shape& theFace)
{
for (Standard_Integer id = 1; id <= NBFACES; id++) {
if (theFace.IsSame(myFaces(id))) return id;
}
Standard_NoSuchObject::Raise("The Face does not belong to the Block");
return 0;
}
//=======================================================================
//function : FindFaceID
//purpose :
//=======================================================================
Standard_Integer GEOMImpl_Block6Explorer::FindFaceID (const Standard_Integer theEdge1ID,
const Standard_Integer theEdge2ID)
{
return face_id_edges(theEdge1ID, theEdge2ID);
}
//=======================================================================
//function : GetOppositeFaceID
//purpose :
//=======================================================================
Standard_Integer GEOMImpl_Block6Explorer::GetOppositeFaceID (const Standard_Integer theFaceID)
{
Standard_Integer opp_face_id[NBFACES + 1] = {
0,
2, // to 1 face
1, // to 2 face
4, // to 3 face
3, // to 4 face
6, // to 5 face
5}; // to 6 face
return opp_face_id[theFaceID];
}
//=======================================================================
//function : IsSimilarFaces
//purpose :
//=======================================================================
Standard_Boolean GEOMImpl_Block6Explorer::IsSimilarFaces (const Standard_Integer theFace1ID,
const Standard_Integer theFace2ID,
const gp_Trsf theTransformation)
{
Standard_Integer common_edge_id = FindCommonEdgeID(theFace1ID, theFace2ID);
if (common_edge_id == 0) { // opposite faces
for (Standard_Integer id = 1; id <= 4; id++) {
TopoDS_Shape E1 = GetEdge(edge_id(theFace1ID, id));
TopoDS_Shape E2 = GetEdge(edge_id(theFace2ID, id));
BRepBuilderAPI_Transform aTrsf (E1, theTransformation, Standard_False);
if (!IsSimilarEdges(aTrsf.Shape(), E2))
return Standard_False;
}
} else { // the faces have common edge
TopTools_Array1OfShape aVerts1 (1,4);
TopTools_Array1OfShape aVerts2 (1,4);
Standard_Integer common_vertex1 = GetVertexOnEdgeID(common_edge_id, 1);
Standard_Integer common_vertex2 = GetVertexOnEdgeID(common_edge_id, 2);
aVerts1(1) = myVertices(common_vertex1);
aVerts1(2) = myVertices(common_vertex2);
aVerts2(1) = myVertices(common_vertex1);
aVerts2(2) = myVertices(common_vertex2);
Standard_Integer not_common_v11 = 0, not_common_v12 = 0;
Standard_Integer vnb, vid;
for (vnb = 1; vnb <= 4; vnb++) {
vid = GetVertexID(theFace1ID, vnb);
if (vid != common_vertex1 && FindEdgeID(vid, common_vertex1) == 0) {
not_common_v12 = vid;
} else {
if (vid != common_vertex2 && FindEdgeID(vid, common_vertex2) == 0) {
not_common_v11 = vid;
}
}
}
Standard_Integer not_common_v21 = 0, not_common_v22 = 0;
for (vnb = 1; vnb <= 4; vnb++) {
vid = GetVertexID(theFace2ID, vnb);
if (vid != common_vertex1 && FindEdgeID(vid, common_vertex1) == 0) {
not_common_v22 = vid;
} else {
if (vid != common_vertex2 && FindEdgeID(vid, common_vertex2) == 0) {
not_common_v21 = vid;
}
}
}
aVerts1(3) = myVertices(not_common_v11);
aVerts1(4) = myVertices(not_common_v12);
aVerts2(3) = myVertices(not_common_v21);
aVerts2(4) = myVertices(not_common_v22);
for (Standard_Integer id = 1; id <= 4; id++) {
BRepBuilderAPI_Transform aTrsf (aVerts1(id), theTransformation, Standard_False);
TopoDS_Vertex V1 = TopoDS::Vertex(aTrsf.Shape());
TopoDS_Vertex V2 = TopoDS::Vertex(aVerts2(id));
if (!BRepTools::Compare(V1, V2)) {
return Standard_False;
}
}
}
return Standard_True;
}
//============ Initialization methods ===================================
//=======================================================================
//function : InitByBlock
//purpose :
//=======================================================================
void GEOMImpl_Block6Explorer::InitByBlock (const TopoDS_Shape& theBlock)
{
// 1. Find any one face of the block
TopExp_Explorer faces (theBlock, TopAbs_FACE);
if (!faces.More()) {
Standard_ConstructionError::Raise("The block has no faces");
}
TopoDS_Shape aFirstFace = faces.Current();
// 2. Store all elements of the block relatively aFirstFace
InitByBlockAndFace(theBlock, aFirstFace);
}
//=======================================================================
//function : InitByBlockAndFace
//purpose :
//=======================================================================
void GEOMImpl_Block6Explorer::InitByBlockAndFace (const TopoDS_Shape& theBlock,
const TopoDS_Shape& theFace)
{
myFaces(1) = theFace;
// 2. Get wire of the first face
TopExp_Explorer wires (myFaces(1), TopAbs_WIRE);
if (!wires.More()) {
Standard_ConstructionError::Raise("A face of the block has no wires");
}
TopoDS_Shape aWire = wires.Current();
wires.Next();
if (wires.More()) {
Standard_ConstructionError::Raise("A face of the block has more than one wires");
}
// 3. Explore wire to init edges and vertices of the first face
BRepTools_WireExplorer aWE (TopoDS::Wire(aWire), TopoDS::Face(myFaces(1)));
Standard_Integer nb = 1;
for (; aWE.More(); aWE.Next(), nb++) {
if (nb > 4) {
Standard_ConstructionError::Raise("A face of the block has more than four edges");
}
myEdges(edge_id(1, nb)) = aWE.Current();
myVertices(vertex_id(1, nb)) = aWE.CurrentVertex();
}
if (nb < 5) {
Standard_ConstructionError::Raise("A face of the block has less than four edges");
}
// 2. Store all other elements of the block
InitByBlockAndVertices (theBlock,
myVertices(vertex_id(1,1)),
myVertices(vertex_id(1,2)),
myVertices(vertex_id(1,3)));
}
//=======================================================================
//function : InitByBlockAndEdges
//purpose :
//=======================================================================
void GEOMImpl_Block6Explorer::InitByBlockAndEdges (const TopoDS_Shape& theBlock,
const TopoDS_Shape& theEdge1,
const TopoDS_Shape& theEdge3)
{
// 1. Store vertices and edges of the first face
// 1.1. Store two given edges
myEdges(edge_id(1, 1)) = theEdge1;
myEdges(edge_id(1, 3)) = theEdge3;
// 1.2. Find and store the first face
TopTools_IndexedDataMapOfShapeListOfShape MEF;
MapShapesAndAncestors(theBlock, TopAbs_EDGE, TopAbs_FACE, MEF);
if (MEF.Extent() != NBEDGES) {
Standard_TypeMismatch::Raise("Block has wrong number of edges");
}
const TopTools_ListOfShape& aFacesOfE1 = MEF.FindFromKey(theEdge1);
const TopTools_ListOfShape& aFacesOfE3 = MEF.FindFromKey(theEdge3);
Standard_Boolean isFound = Standard_False;
TopTools_ListIteratorOfListOfShape anIterF1 (aFacesOfE1);
for (; anIterF1.More() && !isFound; anIterF1.Next()) {
TopTools_ListIteratorOfListOfShape anIterF3 (aFacesOfE3);
for (; anIterF3.More() && !isFound; anIterF3.Next()) {
if (anIterF1.Value().IsSame(anIterF3.Value())) {
isFound = Standard_True;
// Store the face, defined by two opposite edges
myFaces(1) = anIterF1.Value();
}
}
}
if (!isFound) {
Standard_ConstructionError::Raise
("Edges 1 and 2 do not belong to one face of the block");
}
// 1.3. Make vertices of the first edge the first and the
// second vertices of the first face. Order is free.
TopoDS_Edge E = TopoDS::Edge(theEdge1);
TopoDS_Vertex V1, V2;
TopExp::Vertices(E, V1, V2, Standard_True);
myVertices(vertex_id(1,1)) = V1;
myVertices(vertex_id(1,2)) = V2;
// Init maps vertex->list_of_edges for the face
TopTools_IndexedDataMapOfShapeListOfShape M1;
MapShapesAndAncestors(myFaces(1), TopAbs_VERTEX, TopAbs_EDGE, M1);
if (M1.Extent() != 4) {
Standard_TypeMismatch::Raise("The first face of block has wrong number of vertices");
}
// 1.4. Find and store others elements of the first face
// edges of the first vertex
TopoDS_Shape E1_f = M1.FindFromKey(V1).First();
TopoDS_Shape E1_l = M1.FindFromKey(V1).Last();
if (E1_f.IsSame(theEdge1)) {
myEdges(edge_id(1, 4)) = E1_l;
} else {
myEdges(edge_id(1, 4)) = E1_f;
}
// fourth vertex
TopoDS_Edge E4 = TopoDS::Edge(myEdges(edge_id(1, 4)));
TopoDS_Vertex V41, V42;
TopExp::Vertices(E4, V41, V42, Standard_True);
if (V41.IsSame(V1)) {
myVertices(vertex_id(1,4)) = V42;
} else {
myVertices(vertex_id(1,4)) = V41;
}
// edges of the second vertex
TopoDS_Shape E2_f = M1.FindFromKey(V2).First();
TopoDS_Shape E2_l = M1.FindFromKey(V2).Last();
if (E2_f.IsSame(theEdge1)) {
myEdges(edge_id(1, 2)) = E2_l;
} else {
myEdges(edge_id(1, 2)) = E2_f;
}
// fird vertex
TopoDS_Edge E2 = TopoDS::Edge(myEdges(edge_id(1, 2)));
TopoDS_Vertex V21, V22;
TopExp::Vertices(E2, V21, V22, Standard_True);
if (V21.IsSame(V2)) {
myVertices(vertex_id(1,3)) = V22;
} else {
myVertices(vertex_id(1,3)) = V21;
}
// 2. Store all other elements of the block
InitByBlockAndVertices (theBlock,
myVertices(vertex_id(1,1)),
myVertices(vertex_id(1,2)),
myVertices(vertex_id(1,3)));
}
//=======================================================================
//function : InitByBlockAndVertices
//purpose :
//=======================================================================
void GEOMImpl_Block6Explorer::InitByBlockAndVertices (const TopoDS_Shape& theBlock,
const TopoDS_Shape& theVertex1,
const TopoDS_Shape& theVertex2,
const TopoDS_Shape& theVertex3)
{
// Here we suppose, that vertices are ordered, i.e. exists edge between
// theVertex1 and theVertex2 and edge between theVertex2 and theVertex3
// 1. Store vertices and edges of the first face.
// If the first face is initialized, it means, that this
// method is called from another initialization method, and all
// vertices and edges of the first face are also initialized
if (myFaces(1).IsNull()) {
// 1.1. Store first three vertices
myVertices(vertex_id(1, 1)) = theVertex1;
myVertices(vertex_id(1, 2)) = theVertex2;
myVertices(vertex_id(1, 3)) = theVertex3;
// 1.2. Find and store the first face
TopTools_IndexedDataMapOfShapeListOfShape MVF;
MapShapesAndAncestors(theBlock, TopAbs_VERTEX, TopAbs_FACE, MVF);
if (MVF.Extent() != NBVERTS) {
Standard_TypeMismatch::Raise("Block has wrong number of vertices");
}
const TopTools_ListOfShape& aFacesOfV1 = MVF.FindFromKey(theVertex1);
const TopTools_ListOfShape& aFacesOfV3 = MVF.FindFromKey(theVertex3);
Standard_Boolean isFound = Standard_False;
TopTools_ListIteratorOfListOfShape anIterF1 (aFacesOfV1);
for (; anIterF1.More() && !isFound; anIterF1.Next()) {
TopTools_ListIteratorOfListOfShape anIterF3 (aFacesOfV3);
for (; anIterF3.More() && !isFound; anIterF3.Next()) {
if (anIterF1.Value().IsSame(anIterF3.Value())) {
isFound = Standard_True;
// Store the face, defined by two opposite vertices
myFaces(1) = anIterF1.Value();
}
}
}
if (!isFound) {
Standard_ConstructionError::Raise
("Vertices 1 and 3 do not belong to one face of the block");
}
// Init maps vertex->list_of_edges for the face
TopTools_IndexedDataMapOfShapeListOfShape M1;
MapShapesAndAncestors(myFaces(1), TopAbs_VERTEX, TopAbs_EDGE, M1);
if (M1.Extent() != 4) {
Standard_TypeMismatch::Raise("The first face of block has wrong number of vertices");
}
// 1.3. Find and store edges and last vertex of the first face
const TopTools_ListOfShape& anEdgesOfV1 = M1.FindFromKey(theVertex1);
const TopTools_ListOfShape& anEdgesOfV2 = M1.FindFromKey(theVertex2);
const TopTools_ListOfShape& anEdgesOfV3 = M1.FindFromKey(theVertex3);
TopTools_ListIteratorOfListOfShape anIterE2 (anEdgesOfV2);
for (; anIterE2.More(); anIterE2.Next()) {
TopTools_ListIteratorOfListOfShape anIterE1 (anEdgesOfV1);
for (; anIterE1.More(); anIterE1.Next()) {
if (anIterE1.Value().IsSame(anIterE2.Value())) {
// Store the first edge, defined by two vertices
myEdges(edge_id(1,1)) = anIterE1.Value();
} else {
// Store the last edge
myEdges(edge_id(1,4)) = anIterE1.Value();
// Find and store the last vertex
TopoDS_Edge E = TopoDS::Edge(myEdges(4));
TopoDS_Vertex V1, V2;
TopExp::Vertices(E, V1, V2, Standard_True);
if (V1.IsSame(theVertex1)) {
myVertices(vertex_id(1,4)) = V2;
} else {
myVertices(vertex_id(1,4)) = V1;
}
}
}
TopTools_ListIteratorOfListOfShape anIterE3 (anEdgesOfV3);
for (; anIterE3.More(); anIterE3.Next()) {
if (anIterE3.Value().IsSame(anIterE2.Value())) {
// Store the second edge, defined by two vertices
myEdges(edge_id(1,2)) = anIterE3.Value();
} else {
// Store the fird edge
myEdges(edge_id(1,3)) = anIterE3.Value();
}
}
}
}
// Init map vertex->list_of_edges for the block
TopTools_IndexedDataMapOfShapeListOfShape MB;
MapShapesAndAncestors(theBlock, TopAbs_VERTEX, TopAbs_EDGE, MB);
if (MB.Extent() != NBVERTS) {
Standard_TypeMismatch::Raise("Block has wrong number of vertices");
}
// 2. Store edges, linking the first face with the second one
// and vertices of the second face
TopTools_IndexedMapOfShape aFaceEdges;
TopExp::MapShapes(myFaces(1), TopAbs_EDGE, aFaceEdges);
Standard_Integer i = 1;
for (; i <= 4; i++) {
// Get i-th vertex of the face 1
TopoDS_Shape Vi = myVertices(vertex_id(1, i));
if (!MB.Contains(Vi)) {
Standard_ConstructionError::Raise("Face does not belong to the block");
}
// Get list of block's edges, sharing this Vertex
const TopTools_ListOfShape& anEdgesOfVi = MB.FindFromKey(Vi);
TopTools_ListIteratorOfListOfShape anEdgesIter (anEdgesOfVi);
// Get Edge (from the List), not belonging to the face 1
Standard_Boolean isFound = Standard_False;
for (; anEdgesIter.More() && !isFound; anEdgesIter.Next()) {
if (!aFaceEdges.Contains(anEdgesIter.Value())) {
isFound = Standard_True;
// Store the linking edge
TopoDS_Shape aLinkEdge = anEdgesIter.Value();
myEdges(side_edge_id(i)) = aLinkEdge;
// Get another vertex of the linking edge
TopoDS_Edge E = TopoDS::Edge(aLinkEdge);
TopoDS_Vertex V1, V2;
TopExp::Vertices(E, V1, V2, Standard_True);
// Store the i-th vertex of the second (opposite to the first) face
if (V1.IsSame(Vi)) {
myVertices(vertex_id(2, i)) = V2;
} else {
myVertices(vertex_id(2, i)) = V1;
}
}
}
}
// 3. Store edges of the second (opposite to the first) face
for (i = 1; i <= 4; i++) {
// Get i-th and (i+1)-th vertices of the face 2
TopoDS_Shape Vi = myVertices(vertex_id(2, i));
TopoDS_Shape Vj = myVertices(vertex_id(2, mod4(i + 1)));
// Get list of block's edges, sharing Vi
const TopTools_ListOfShape& anEdgesOfVi = MB.FindFromKey(Vi);
// Get list of block's edges, sharing Vj
const TopTools_ListOfShape& anEdgesOfVj = MB.FindFromKey(Vj);
// Get Edge (from the List), linking this vertex with the next one
Standard_Boolean isFound = Standard_False;
TopTools_ListIteratorOfListOfShape anEdgesIteri (anEdgesOfVi);
for (; anEdgesIteri.More() && !isFound; anEdgesIteri.Next()) {
TopTools_ListIteratorOfListOfShape anEdgesIterj (anEdgesOfVj);
for (; anEdgesIterj.More() && !isFound; anEdgesIterj.Next()) {
if (anEdgesIteri.Value().IsSame(anEdgesIterj.Value())) {
isFound = Standard_True;
// Store the linking edge
myEdges(edge_id(2, i)) = anEdgesIteri.Value();
}
}
}
}
// 4. Store faces of the block
TopTools_IndexedDataMapOfShapeListOfShape MBE;
MapShapesAndAncestors(theBlock, TopAbs_EDGE, TopAbs_FACE, MBE);
if (MBE.Extent() != NBEDGES) {
Standard_TypeMismatch::Raise("Block has wrong number of edges");
}
for (i = 2; i <= NBFACES; i++) {
TopoDS_Shape Ei1 = myEdges(edge_id(i, 1));
TopoDS_Shape Ei2 = myEdges(edge_id(i, 2));
const TopTools_ListOfShape& aFacesOfEi1 = MBE.FindFromKey(Ei1);
const TopTools_ListOfShape& aFacesOfEi2 = MBE.FindFromKey(Ei2);
Standard_Boolean isFound = Standard_False;
TopTools_ListIteratorOfListOfShape anIterEi1 (aFacesOfEi1);
for (; anIterEi1.More() && !isFound; anIterEi1.Next()) {
TopTools_ListIteratorOfListOfShape anIterEi2 (aFacesOfEi2);
for (; anIterEi2.More() && !isFound; anIterEi2.Next()) {
if (anIterEi1.Value().IsSame(anIterEi2.Value())) {
isFound = Standard_True;
// Store the face, defined by two edges
myFaces(i) = anIterEi1.Value();
}
}
}
}
}
//=======================================================================
//function : InitByTwoFaces
//purpose :
//=======================================================================
void GEOMImpl_Block6Explorer::InitByTwoFaces (const TopoDS_Shape& theFace1,
const TopoDS_Shape& theFace2)
{
if (theFace1.IsSame(theFace2)) {
Standard_ConstructionError::Raise("The faces must be different");
}
// Add two given faces in the structure
myFaces(1) = theFace1;
myFaces(2) = theFace2;
// Step 1. Order vertices (and edges)
// 1.1. Ordered vertices and edges of the first face we put in <myVertices>
// Get wire of the first face
TopExp_Explorer wires1 (myFaces(1), TopAbs_WIRE);
if (!wires1.More()) {
Standard_ConstructionError::Raise("A face for the block has no wires");
}
TopoDS_Shape aWire1 = wires1.Current();
wires1.Next();
if (wires1.More()) {
Standard_ConstructionError::Raise("A face for the block has more than one wire");
}
BRepTools_WireExplorer aWE1 (TopoDS::Wire(aWire1), TopoDS::Face(myFaces(1)));
Standard_Integer nb;
for (nb = 1; aWE1.More(); aWE1.Next(), nb++) {
if (nb > 4) {
Standard_ConstructionError::Raise("A face for the block has more than four edges");
}
myEdges(edge_id(1, nb)) = aWE1.Current();
myVertices(vertex_id(1, nb)) = aWE1.CurrentVertex();
}
if (nb < 5) {
Standard_ConstructionError::Raise("A face for the block has less than four edges");
}
// 1.2. Ordered vertices and edges of the second face we temporarily store
// in arrays, to find for them rigth location in <myVertices> on the Step 2.
// declare arrays
TopTools_Array1OfShape aVertis2(1,4); // ordered vertices of the second face
TopTools_Array1OfShape anEdges2(1,4); // anEdges2(i) links aVertis2(i) and aVertis2(i+1)
// Get wire of the second face
TopExp_Explorer wires2 (myFaces(2), TopAbs_WIRE);
if (!wires2.More()) {
Standard_ConstructionError::Raise("A face for the block has no wires");
}
TopoDS_Shape aWire2 = wires2.Current();
wires2.Next();
if (wires2.More()) {
Standard_ConstructionError::Raise("A face for the block has more than one wire");
}
BRepTools_WireExplorer aWE2 (TopoDS::Wire(aWire2), TopoDS::Face(myFaces(2)));
for (nb = 1; aWE2.More(); aWE2.Next(), nb++) {
if (nb > 4) {
Standard_ConstructionError::Raise("A face for the block has more than four edges");
}
anEdges2(nb) = aWE2.Current();
aVertis2(nb) = aWE2.CurrentVertex();
}
if (nb < 5) {
Standard_ConstructionError::Raise("A face for the block has less than four edges");
}
// Step 2. Find right place in <myVertices> for the <aVertis2>,
// so as to minimize common length of linking edges
// between face 1 and face 2.
// Each linking edge (of four) will link vertices of the
// faces 1 and 2 with equal local numbers.
// The right place is defined by:
// - vertex <aVertis2(i_min)>, which will become the first vertex
// of the second face <myVertices(vertex_id(2,1))>
// - orientation of <aVertis2> relatively their future location
// in <myVertices> (s_min = 1 if direct, s_min = -1 if reversed)
Standard_Integer i_min = 0, s_min = 0;
TColgp_Array1OfPnt aPnts1 (1,4); // points of the first face
aPnts1(1) = BRep_Tool::Pnt(TopoDS::Vertex(myVertices(vertex_id(1, 1))));
aPnts1(2) = BRep_Tool::Pnt(TopoDS::Vertex(myVertices(vertex_id(1, 2))));
aPnts1(3) = BRep_Tool::Pnt(TopoDS::Vertex(myVertices(vertex_id(1, 3))));
aPnts1(4) = BRep_Tool::Pnt(TopoDS::Vertex(myVertices(vertex_id(1, 4))));
TColgp_Array1OfPnt aPnts2 (1,4); // points of the second face
aPnts2(1) = BRep_Tool::Pnt(TopoDS::Vertex(aVertis2(1)));
aPnts2(2) = BRep_Tool::Pnt(TopoDS::Vertex(aVertis2(2)));
aPnts2(3) = BRep_Tool::Pnt(TopoDS::Vertex(aVertis2(3)));
aPnts2(4) = BRep_Tool::Pnt(TopoDS::Vertex(aVertis2(4)));
Standard_Real Dist_min = RealLast();
// try all possible locations to find the best (with minimum sum distance)
Standard_Integer i = 1;
for (; i <= 4; i++) {
// try direct orientation
Standard_Real Dist_plus = aPnts1(1).Distance(aPnts2(i)) +
aPnts1(2).Distance(aPnts2(mod4(i + 1))) +
aPnts1(3).Distance(aPnts2(mod4(i + 2))) +
aPnts1(4).Distance(aPnts2(mod4(i + 3)));
if (Dist_plus < Dist_min) {
Dist_min = Dist_plus;
i_min = i;
s_min = 1;
}
// try reversed orientation
Standard_Real Dist_minus = aPnts1(1).Distance(aPnts2(i)) +
aPnts1(2).Distance(aPnts2(mod4(i - 1))) +
aPnts1(3).Distance(aPnts2(mod4(i - 2))) +
aPnts1(4).Distance(aPnts2(mod4(i - 3)));
if (Dist_minus < Dist_min) {
Dist_min = Dist_minus;
i_min = i;
s_min = - 1;
}
}
// 3. Put vertices and edges of the second face to they
// permanent location in <myVertices> and <myEdges>
for (i = 1; i <= 4; i++) {
Standard_Integer nb = mod4(i_min + s_min*(i - 1));
if (aPnts1(i).Distance(aPnts2(nb)) < Precision::Confusion()) {
Standard_ConstructionError::Raise("The faces are too close");
}
myVertices(vertex_id(2, i)) = aVertis2(nb);
if (s_min == -1) nb = mod4(nb - 1);
myEdges(edge_id(2, i)) = anEdges2(nb);
}
// check the wires closure
TopoDS_Wire wire1 = TopoDS::Wire(aWire1);
TopoDS_Wire wire2 = TopoDS::Wire(aWire2);
TopoDS_Vertex aV1, aV2;
TopExp::Vertices(wire1, aV1, aV2);
if (!aV1.IsNull() && !aV2.IsNull() && aV1.IsSame(aV2))
aWire1.Closed(true);
TopExp::Vertices(wire2, aV1, aV2);
if (!aV1.IsNull() && !aV2.IsNull() && aV1.IsSame(aV2))
aWire2.Closed(true);
// 4. Generate side surface
if (!aWire1.Closed() || !aWire2.Closed()) {
// BRepOffsetAPI_ThruSections is not applicable on not closed wires
GetFace(3, Standard_True);
GetFace(4, Standard_True);
GetFace(5, Standard_True);
GetFace(6, Standard_True);
} else {
// try to build faces on native surfaces of edges or planar
Standard_Boolean tryThru = Standard_False;
for (Standard_Integer i = 3; i <= 6 && !tryThru; i++) {
Standard_Boolean doMake = Standard_True;
TopoDS_Shape E1 = GetEdge(edge_id(i, 1), doMake);
TopoDS_Shape E2 = GetEdge(edge_id(i, 2), doMake);
TopoDS_Shape E3 = GetEdge(edge_id(i, 3), doMake);
TopoDS_Shape E4 = GetEdge(edge_id(i, 4), doMake);
BRepBuilderAPI_MakeWire MW (TopoDS::Edge(E1),
TopoDS::Edge(E2),
TopoDS::Edge(E3),
TopoDS::Edge(E4));
if (!MW.IsDone()) {
Standard_ConstructionError::Raise("Wire construction failed");
}
BRepBuilderAPI_MakeFace MF (MW, Standard_False);
if (MF.IsDone()) {
myFaces(i) = MF.Shape();
} else {
tryThru = Standard_True;
}
}
// Build side surface by ThruSections algorithm
if (tryThru) {
BRepOffsetAPI_ThruSections THS;
THS.AddWire(TopoDS::Wire(aWire1));
THS.AddWire(TopoDS::Wire(aWire2));
THS.Build();
if (!THS.IsDone()) {
StdFail_NotDone::Raise("Side surface generation failed");
}
for (Standard_Integer i = 1; i <= 4; i++) {
// fill face
myFaces(i+2) = THS.GeneratedFace(myEdges(i));
// fill edge
Standard_Integer ee = side_edge_id(i);
TopTools_IndexedDataMapOfShapeListOfShape MVE;
MapShapesAndAncestors(myFaces(i+2), TopAbs_VERTEX, TopAbs_EDGE, MVE);
FindEdge(myEdges(ee),
myVertices(vertex_id_edge(ee, 1)),
myVertices(vertex_id_edge(ee, 2)),
MVE);
}
}
}
}
//=======================================================================
//function : MapShapesAndAncestors
//purpose :
//=======================================================================
void GEOMImpl_Block6Explorer::MapShapesAndAncestors (const TopoDS_Shape& S,
const TopAbs_ShapeEnum TS,
const TopAbs_ShapeEnum TA,
TopTools_IndexedDataMapOfShapeListOfShape& M)
{
TopTools_ListOfShape empty;
TopTools_MapOfShape mapA;
// visit ancestors
TopExp_Explorer exa (S,TA);
for (; exa.More(); exa.Next()) {
// visit shapes
const TopoDS_Shape& anc = exa.Current();
if (mapA.Add(anc)) {
TopExp_Explorer exs (anc,TS);
TopTools_MapOfShape mapS;
for (; exs.More(); exs.Next()) {
if (mapS.Add(exs.Current())) {
Standard_Integer index = M.FindIndex(exs.Current());
if (index == 0) index = M.Add(exs.Current(),empty);
M(index).Append(anc);
}
}
}
}
// visit shapes not under ancestors
TopExp_Explorer ex (S,TS,TA);
for (; ex.More(); ex.Next()) {
Standard_Integer index = M.FindIndex(ex.Current());
if (index == 0) index = M.Add(ex.Current(),empty);
}
}
//=======================================================================
//function : IsSimilarEdges
//purpose :
//=======================================================================
Standard_Boolean GEOMImpl_Block6Explorer::IsSimilarEdges (const TopoDS_Shape& E1,
const TopoDS_Shape& E2)
{
TopoDS_Edge E1e = TopoDS::Edge(E1);
TopoDS_Edge E2e = TopoDS::Edge(E2);
TopoDS_Vertex V11, V12, V21, V22;
TopExp::Vertices(E1e, V11, V12, Standard_True);
TopExp::Vertices(E2e, V21, V22, Standard_True);
if (BRepTools::Compare(V11, V21) && BRepTools::Compare(V12, V22))
return Standard_True;
if (BRepTools::Compare(V11, V22) && BRepTools::Compare(V12, V21))
return Standard_True;
return Standard_False;
}
//=======================================================================
//function : FindEdge
//purpose :
//=======================================================================
Standard_Integer GEOMImpl_Block6Explorer::FindEdge
(TopoDS_Shape& theResult,
const TopoDS_Shape& V1,
const TopoDS_Shape& V2,
const TopTools_IndexedDataMapOfShapeListOfShape& MVE,
const Standard_Boolean findAll)
{
Standard_Integer isFound = 0;
const TopTools_ListOfShape& anEdgesOfV1 = MVE.FindFromKey(V1);
const TopTools_ListOfShape& anEdgesOfV2 = MVE.FindFromKey(V2);
TopTools_ListIteratorOfListOfShape it1 (anEdgesOfV1);
for (; it1.More(); it1.Next()) {
TopTools_ListIteratorOfListOfShape it2 (anEdgesOfV2);
for (; it2.More(); it2.Next()) {
if (it1.Value().IsSame(it2.Value())) {
isFound++;
theResult = it1.Value();
if (!findAll) return isFound;
}
}
}
return isFound;
}
//=======================================================================
//function : FindFace
//purpose :
//=======================================================================
Standard_Integer GEOMImpl_Block6Explorer::FindFace
(TopoDS_Shape& theResult,
const TopoDS_Shape& V1,
const TopoDS_Shape& V2,
const TopoDS_Shape& V3,
const TopoDS_Shape& V4,
const TopTools_IndexedDataMapOfShapeListOfShape& MVF,
const Standard_Boolean findAll)
{
Standard_Integer isFound = Standard_False;
const TopTools_ListOfShape& aFacesOfV1 = MVF.FindFromKey(V1);
const TopTools_ListOfShape& aFacesOfV2 = MVF.FindFromKey(V2);
const TopTools_ListOfShape& aFacesOfV3 = MVF.FindFromKey(V3);
const TopTools_ListOfShape& aFacesOfV4 = MVF.FindFromKey(V4);
TopTools_ListIteratorOfListOfShape it1 (aFacesOfV1);
for (; it1.More(); it1.Next()) {
TopTools_ListIteratorOfListOfShape it2 (aFacesOfV2);
for (; it2.More(); it2.Next()) {
if (it1.Value().IsSame(it2.Value())) {
TopTools_ListIteratorOfListOfShape it3 (aFacesOfV3);
for (; it3.More(); it3.Next()) {
if (it1.Value().IsSame(it3.Value())) {
TopTools_ListIteratorOfListOfShape it4 (aFacesOfV4);
for (; it4.More(); it4.Next()) {
if (it1.Value().IsSame(it4.Value())) {
isFound++;
theResult = it1.Value();
if (!findAll) return isFound;
}
}
}
}
}
}
}
return isFound;
}
//=======================================================================
//function : MakeFace
//purpose :
//=======================================================================
TCollection_AsciiString GEOMImpl_Block6Explorer::MakeFace (const TopoDS_Wire& theWire,
const Standard_Boolean isPlanarWanted,
TopoDS_Shape& theResult)
{
if (!isPlanarWanted)
return MakeAnyFace(theWire, theResult);
// Try to build a planar face.
// If required tolerance increase will be
// higher than PLANAR_FACE_MAX_TOLERANCE,
// we will try to build a non-planar face.
TCollection_AsciiString aWarning;
// Workaround for Mantis issue 0020956
// Count the number of points in the wire.
// Collect the first three points.
gp_Pnt p1, p2, p3;
bool is3Pnts (false);
bool p1set(false), p2set(false), p3set(false);
BRepTools_WireExplorer wexpl (theWire);
for (; wexpl.More(); wexpl.Next()) {
if (!p1set) {
p1set = true;
p1 = BRep_Tool::Pnt(wexpl.CurrentVertex());
}
else if (!p2set) {
p2set = true;
p2 = BRep_Tool::Pnt(wexpl.CurrentVertex());
}
else if (!p3set) {
p3set = true;
is3Pnts = true;
p3 = BRep_Tool::Pnt(wexpl.CurrentVertex());
}
else {
is3Pnts = false;
break;
}
}
// Construct a plane for the case of three points in the wire.
gp_Pln plane;
if (is3Pnts) {
gce_MakePln mkPln (p1, p2, p3);
if (mkPln.IsDone()) {
plane = mkPln.Value();
}
else {
is3Pnts = false;
}
}
// Construct a face based on the plane (in case of three points in the wire) or
// allow MakeFace to build the plane itself (in case of the number of points is greater than 3).
if (is3Pnts) {
BRepBuilderAPI_MakeFace MK (plane, theWire, isPlanarWanted);
if (MK.IsDone()) {
theResult = MK.Shape();
return aWarning;
}
}
else {
BRepBuilderAPI_MakeFace MK (theWire, isPlanarWanted);
if (MK.IsDone()) {
theResult = MK.Shape();
return aWarning;
}
}
// try to update wire tolerances to build a planar face
// Find a deviation
Standard_Real aToleranceReached, aTol;
BRepLib_FindSurface aFS;
aFS.Init(theWire, -1., isPlanarWanted);
aToleranceReached = aFS.ToleranceReached();
aTol = aFS.Tolerance();
if (!aFS.Found()) {
aFS.Init(theWire, aToleranceReached, isPlanarWanted);
if (!aFS.Found()) return aWarning;
aToleranceReached = aFS.ToleranceReached();
aTol = aFS.Tolerance();
}
aTol = Max(1.2 * aToleranceReached, aTol);
// Mantis issue 0021432: EDF GEOM: Faces with huge tolerance can be built in GEOM
if (aTol > PLANAR_FACE_MAX_TOLERANCE) {
aWarning = MakeAnyFace(theWire, theResult);
if (aWarning.IsEmpty() && !theResult.IsNull())
aWarning = "MAKE_FACE_TOLERANCE_TOO_BIG";
return aWarning;
}
// Copy the wire, bacause it can be updated with very-very big tolerance here
BRepBuilderAPI_Copy aMC (theWire);
if (!aMC.IsDone()) return aWarning;
TopoDS_Wire aWire = TopoDS::Wire(aMC.Shape());
// Update tolerances to <aTol>
BRep_Builder B;
for (TopExp_Explorer expE (aWire, TopAbs_EDGE); expE.More(); expE.Next()) {
TopoDS_Edge anE = TopoDS::Edge(expE.Current());
B.UpdateEdge(anE, aTol);
}
for (TopExp_Explorer expV (aWire, TopAbs_VERTEX); expV.More(); expV.Next()) {
TopoDS_Vertex aV = TopoDS::Vertex(expV.Current());
B.UpdateVertex(aV, aTol);
}
//BRepLib::UpdateTolerances(aWire);
// Build face
BRepBuilderAPI_MakeFace MK1 (aWire, isPlanarWanted);
if (MK1.IsDone()) {
theResult = MK1.Shape();
// Mantis issue 0021432: EDF GEOM: Faces with huge tolerance can be built in GEOM
//if (aTol > PLANAR_FACE_MAX_TOLERANCE)
// aWarning = "MAKE_FACE_TOLERANCE_TOO_BIG";
}
return aWarning;
}
//=======================================================================
//function : MakeAnyFace
//purpose :
//=======================================================================
TCollection_AsciiString GEOMImpl_Block6Explorer::MakeAnyFace (const TopoDS_Wire& theWire,
TopoDS_Shape& theResult)
{
TCollection_AsciiString aWarning;
// try to build a face on any surface under the edges of the wire
BRepBuilderAPI_MakeFace MK (theWire, Standard_False);
if (MK.IsDone()) {
theResult = MK.Shape();
return aWarning;
}
// try to construct filling surface
BRepOffsetAPI_MakeFilling MF;
Standard_Integer nbEdges = 0;
BRepTools_WireExplorer aWE (theWire);
for (; aWE.More(); aWE.Next(), nbEdges++) {
MF.Add(TopoDS::Edge(aWE.Current()), GeomAbs_C0);
}
MF.Build();
if (!MF.IsDone()) {
aWarning = "BRepOffsetAPI_MakeFilling failed";
return aWarning;
}
// Result of filling
TopoDS_Shape aFace = MF.Shape();
// 12.04.2006 for PAL12149 begin
Handle(Geom_Surface) aGS = BRep_Tool::Surface(TopoDS::Face(aFace));
// VSR: debug issues 0021568 and 0021550 (15/05/2012) - BEGIN
// the following block, when enabled, leads to extra vertices generation by partition algorithm
// in some cases, for example when fillet is made on a PipeTShape
//#if OCC_VERSION_LARGE > 0x06050200
#if 0
// VSR: debug issues 0021568 and 0021550 (15/05/2012) - END
BRep_Builder BB;
TopoDS_Iterator itw(theWire);
for (; itw.More(); itw.Next())
{
const TopoDS_Edge& anEdge = TopoDS::Edge(itw.Value());
TopoDS_Edge NewEdge = TopoDS::Edge(MF.Generated(anEdge).First());
Standard_Real fpar, lpar;
Handle(Geom2d_Curve) NewPCurve = BRep_Tool::CurveOnSurface(NewEdge, TopoDS::Face(aFace), fpar, lpar);
TopLoc_Location aLoc;
Standard_Real NewTol = BRep_Tool::Tolerance(NewEdge);
BB.UpdateEdge(anEdge, NewPCurve, aGS, aLoc, NewTol);
}
#endif
BRepBuilderAPI_MakeFace MK1 (aGS, theWire);
if (MK1.IsDone()) {
TopoDS_Shape aFace1 = MK1.Shape();
BRepCheck_Analyzer ana (aFace1, false);
if (!ana.IsValid()) {
TopoDS_Shape aFace2;
ShHealOper_ShapeProcess aHealer;
aHealer.Perform(aFace1, aFace2);
if (aHealer.isDone())
theResult = aFace2;
}
}
// 12.04.2006 for PAL12149 end
if (theResult.IsNull()) { // try to deal with pure result of filling
// Update tolerance
Standard_Real aTol = MF.G0Error();
TColgp_Array1OfPnt aPnts (1,nbEdges); // points of the given wire
BRepTools_WireExplorer aWE1 (theWire);
Standard_Integer vi = 1;
for (; aWE1.More() && vi <= nbEdges; aWE1.Next(), vi++) {
aPnts(vi) = BRep_Tool::Pnt(TopoDS::Vertex(aWE1.CurrentVertex()));
}
// Find maximum deviation in vertices
TopExp_Explorer exp (aFace, TopAbs_VERTEX);
TopTools_MapOfShape mapShape;
for (; exp.More(); exp.Next()) {
if (mapShape.Add(exp.Current())) {
TopoDS_Vertex aV = TopoDS::Vertex(exp.Current());
Standard_Real aTolV = BRep_Tool::Tolerance(aV);
gp_Pnt aP = BRep_Tool::Pnt(aV);
Standard_Real min_dist = aP.Distance(aPnts(1));
for (vi = 2; vi <= nbEdges; vi++) {
min_dist = Min(min_dist, aP.Distance(aPnts(vi)));
}
aTol = Max(aTol, aTolV);
aTol = Max(aTol, min_dist);
}
}
if ((*((Handle(BRep_TFace)*)&aFace.TShape()))->Tolerance() < aTol) {
(*((Handle(BRep_TFace)*)&aFace.TShape()))->Tolerance(aTol);
}
theResult = aFace;
}
return aWarning;
}
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