1 // Copyright (C) 2014-20xx CEA/DEN, EDF R&D
3 // File: GeomAlgoAPI_Placement.cpp
5 // Author: Artem ZHIDKOV
7 #include "GeomAlgoAPI_Placement.h"
9 #include <GeomAlgoAPI_DFLoader.h>
11 #include <GeomAPI_Dir.h>
12 #include <GeomAPI_Edge.h>
13 #include <GeomAPI_Face.h>
14 #include <GeomAPI_Lin.h>
15 #include <GeomAPI_Pnt.h>
16 #include <GeomAPI_Pln.h>
17 #include <GeomAPI_Vertex.h>
18 #include <GeomAPI_XYZ.h>
20 #include <BRepBuilderAPI_Transform.hxx>
21 #include <BRepClass3d_SolidClassifier.hxx>
22 #include <gp_Trsf.hxx>
23 #include <gp_Quaternion.hxx>
24 #include <Precision.hxx>
26 GeomAlgoAPI_Placement::GeomAlgoAPI_Placement(const std::shared_ptr<GeomAPI_Shape> theSourceSolid,
27 const std::shared_ptr<GeomAPI_Shape> theDestSolid,
28 const std::shared_ptr<GeomAPI_Shape> theSourceShape,
29 const std::shared_ptr<GeomAPI_Shape> theDestShape,
30 const bool theIsReverse,
31 const bool theIsCentering,
32 const bool theSimpleTransform)
34 build(theSourceSolid, theDestSolid, theSourceShape, theDestShape,
35 theIsReverse, theIsCentering, theSimpleTransform);
38 void GeomAlgoAPI_Placement::build(const std::shared_ptr<GeomAPI_Shape>& theSourceSolid,
39 const std::shared_ptr<GeomAPI_Shape>& theDestSolid,
40 const std::shared_ptr<GeomAPI_Shape>& theSourceShape,
41 const std::shared_ptr<GeomAPI_Shape>& theDestShape,
42 const bool theIsReverse,
43 const bool theIsCentering,
44 const bool theSimpleTransform)
46 // Filling the parameters of the objects
47 static const int aNbObjects = 2;
48 gp_Pnt aSrcDstPoints[aNbObjects]; // points on the selected objects (0 - source, 1 - destination)
49 gp_Vec aSrcDstNormals[aNbObjects]; // normal vectors, if planar faces are selected
50 gp_Vec aSrcDstDirections[aNbObjects]; // directions of linear edges
51 bool hasNormal[aNbObjects];
52 bool hasDirection[aNbObjects];
53 std::shared_ptr<GeomAPI_Shape> aShapes[aNbObjects] = {theSourceShape, theDestShape};
55 for (int i = 0; i < aNbObjects; i++) {
56 if (aShapes[i]->isFace()) {
57 std::shared_ptr<GeomAPI_Face> aFace(new GeomAPI_Face(aShapes[i]));
58 std::shared_ptr<GeomAPI_Pln> aPlane = aFace->getPlane();
59 std::shared_ptr<GeomAPI_Dir> aDir = aPlane->direction();
60 std::shared_ptr<GeomAPI_Pnt> aLoc = aPlane->location();
61 aSrcDstPoints[i].SetCoord(aLoc->x(), aLoc->y(), aLoc->z());
62 aSrcDstNormals[i].SetCoord(aDir->x(), aDir->y(), aDir->z());
63 } else if (aShapes[i]->isEdge()) {
64 std::shared_ptr<GeomAPI_Edge> anEdge(new GeomAPI_Edge(aShapes[i]));
65 std::shared_ptr<GeomAPI_Lin> aLine = anEdge->line();
66 std::shared_ptr<GeomAPI_Dir> aDir = aLine->direction();
67 std::shared_ptr<GeomAPI_Pnt> aFirstPnt = anEdge->firstPoint();
68 std::shared_ptr<GeomAPI_Pnt> aLastPnt = anEdge->lastPoint();
69 std::shared_ptr<GeomAPI_XYZ> aLoc = aFirstPnt->xyz()->added(aLastPnt->xyz())->multiplied(0.5);
70 aSrcDstPoints[i].SetCoord(aLoc->x(), aLoc->y(), aLoc->z());
71 aSrcDstDirections[i].SetCoord(aDir->x(), aDir->y(), aDir->z());
72 } else if (aShapes[i]->isVertex()) {
73 std::shared_ptr<GeomAPI_Vertex> aVertex(new GeomAPI_Vertex(aShapes[i]));
74 std::shared_ptr<GeomAPI_Pnt> aPnt = aVertex->point();
75 aSrcDstPoints[i].SetCoord(aPnt->x(), aPnt->y(), aPnt->z());
76 } else // something goes wrong
78 hasNormal[i] = aSrcDstNormals[i].SquareMagnitude() >= Precision::SquareConfusion();
79 hasDirection[i] = aSrcDstDirections[i].SquareMagnitude() >= Precision::SquareConfusion();
83 const TopoDS_Shape& aSourceShape = theSourceSolid->impl<TopoDS_Shape>();
84 const TopoDS_Shape& aDestShape = theDestSolid->impl<TopoDS_Shape>();
85 // Check the material of the solids to be on the correct side
86 BRepClass3d_SolidClassifier aClassifier;
87 static const double aTransStep = 10. * Precision::Confusion();
89 aClassifier.Load(aSourceShape);
90 gp_Pnt aPoint = aSrcDstPoints[0];
91 aPoint.Translate(aSrcDstNormals[0] * aTransStep);
92 aClassifier.Perform(aPoint, Precision::Confusion());
93 if ((aClassifier.State() == TopAbs_OUT && !theIsReverse) ||
94 (aClassifier.State() == TopAbs_IN && theIsReverse))
95 aSrcDstNormals[0].Reverse();
98 aClassifier.Load(aDestShape);
99 gp_Pnt aPoint = aSrcDstPoints[1];
100 aPoint.Translate(aSrcDstNormals[1] * aTransStep);
101 aClassifier.Perform(aPoint, Precision::Confusion());
102 if (aClassifier.State() == TopAbs_IN)
103 aSrcDstNormals[1].Reverse();
106 // Calculate directions, which comply the normal, for vertices and edges
107 if (!hasNormal[0] || !hasNormal[1]) {
108 if (hasNormal[0] || hasNormal[1]) { // plane with line or vertex
109 if (hasDirection[0] || hasDirection[1]) { // plane - line
110 int anInd = hasDirection[0] ? 0 : 1;
111 gp_Vec aVec = aSrcDstNormals[1 - anInd].Crossed(aSrcDstDirections[anInd]);
112 if (aVec.SquareMagnitude() < Precision::SquareConfusion()) { // normal and direction are collinear
113 aVec = aSrcDstNormals[1 - anInd].Crossed(
114 gp_Vec(aSrcDstPoints[1 - anInd], aSrcDstPoints[anInd]));
115 if (aVec.SquareMagnitude() < Precision::SquareConfusion()) { // normal and points direction are collinear
116 if (Abs(aSrcDstNormals[1 - anInd].Y()) >= Precision::Confusion() ||
117 Abs(aSrcDstNormals[1 - anInd].Z()) >= Precision::Confusion())
123 aSrcDstNormals[anInd] = aSrcDstDirections[anInd].Crossed(aVec).Normalized();
124 } else { // plane - point
125 int anInd = hasNormal[0] ? 1 : 0;
126 aSrcDstNormals[anInd] = aSrcDstNormals[1 - anInd];
129 if (hasDirection[0] && hasDirection[1]) { // line - line
130 gp_Vec aVec = aSrcDstDirections[0].Crossed(aSrcDstDirections[1]);
131 if (aVec.SquareMagnitude() < Precision::SquareConfusion()) { // lines are parallel
132 aVec = aSrcDstDirections[0].Crossed(gp_Vec(aSrcDstPoints[0], aSrcDstPoints[1]));
133 if (aVec.SquareMagnitude() < Precision::SquareConfusion()) { // lines are equal
134 if (Abs(aSrcDstDirections[0].Y()) >= Precision::Confusion() ||
135 Abs(aSrcDstDirections[0].Z()) >= Precision::Confusion())
141 aSrcDstNormals[0] = aSrcDstDirections[0].Crossed(aVec);
142 aSrcDstNormals[0].Normalize();
143 aSrcDstNormals[1] = aSrcDstDirections[1].Crossed(aVec);
144 aSrcDstNormals[1].Normalize();
145 if (aSrcDstDirections[0].Dot(aSrcDstDirections[1]) < -Precision::Confusion())
146 aSrcDstNormals[1].Reverse();
147 } else if (!hasDirection[0] && !hasDirection[1]) { // point - point
148 aSrcDstNormals[0] = gp_Vec(aSrcDstPoints[0], aSrcDstPoints[1]);
149 aSrcDstNormals[0].Normalize();
150 aSrcDstNormals[1] = -aSrcDstNormals[0];
151 } else { // line - point
152 int anInd = hasDirection[0] ? 0 : 1;
153 gp_Vec aVec(aSrcDstPoints[anInd], aSrcDstPoints[1 - anInd]);
154 aVec.Cross(aSrcDstDirections[anInd]);
155 if (aVec.SquareMagnitude() < Precision::SquareConfusion()) { // point is on line
156 if (Abs(aSrcDstDirections[1 - anInd].Y()) >= Precision::Confusion() ||
157 Abs(aSrcDstDirections[1 - anInd].Z()) >= Precision::Confusion())
162 aSrcDstNormals[anInd] = aSrcDstDirections[anInd].Crossed(aVec).Normalized();
163 aSrcDstNormals[1 - anInd] = aSrcDstNormals[anInd];
168 // Reverse the normal if it was not done before
169 if (!hasNormal[0] && theIsReverse)
170 aSrcDstNormals[0].Reverse();
172 // Calculate transformation
174 gp_Vec aSrcDir = aSrcDstNormals[0];
175 gp_Vec aDstDir = aSrcDstNormals[1];
176 // Calculate rotation
177 gp_Quaternion aRot(aSrcDir, aDstDir);
178 aTrsf.SetRotation(aRot);
179 // Calculate translation
180 gp_Vec aSrcLoc(aSrcDstPoints[0].XYZ());
181 gp_Vec aDstLoc(aSrcDstPoints[1].XYZ());
183 aDstLoc = aSrcLoc + gp_Vec(aDstDir) * (aDstLoc-aSrcLoc).Dot(aDstDir);
184 aSrcLoc.Transform(aTrsf);
185 gp_Vec aTrans = aDstLoc - aSrcLoc;
186 aTrsf.SetTransformation(aRot, aTrans);
188 if (theSimpleTransform) { // just add transformation
189 TopLoc_Location aDelta(aTrsf);
190 // store the accumulated information about the result and this delta
191 //myTrsf = std::shared_ptr<GeomAPI_Trsf>(new GeomAPI_Trsf(new gp_Trsf(aTrsf * aSourceShape.Location().Transformation())));
192 myTrsf.reset(new GeomAPI_Trsf(new gp_Trsf(aTrsf)));
193 TopoDS_Shape aResult = aSourceShape.Moved(aDelta);
194 std::shared_ptr<GeomAPI_Shape> aShape(new GeomAPI_Shape());
195 aShape->setImpl(new TopoDS_Shape(aResult));
196 this->setShape(aShape);
197 this->setDone(true); // it is allways true for simple transformation generation
198 } else { // internal rebuild of the shape
199 // Transform the shape with copying it
200 BRepBuilderAPI_Transform* aBuilder = new BRepBuilderAPI_Transform(aSourceShape, aTrsf, true);
204 this->setImpl(aBuilder);
205 this->setBuilderType(OCCT_BRepBuilderAPI_MakeShape);
206 if(aBuilder->IsDone() != Standard_True) {
209 TopoDS_Shape aResult = aBuilder->Shape();
211 std::shared_ptr<GeomAPI_Shape> aShape(new GeomAPI_Shape());
212 aShape->setImpl(new TopoDS_Shape(aResult));
213 this->setShape(aShape);
218 //=================================================================================================
219 std::shared_ptr<GeomAPI_Trsf> GeomAlgoAPI_Placement::transformation() const