1 // Copyright (C) 2014-2017 CEA/DEN, EDF R&D
3 // This library is free software; you can redistribute it and/or
4 // modify it under the terms of the GNU Lesser General Public
5 // License as published by the Free Software Foundation; either
6 // version 2.1 of the License, or (at your option) any later version.
8 // This library is distributed in the hope that it will be useful,
9 // but WITHOUT ANY WARRANTY; without even the implied warranty of
10 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
11 // Lesser General Public License for more details.
13 // You should have received a copy of the GNU Lesser General Public
14 // License along with this library; if not, write to the Free Software
15 // Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
17 // See http://www.salome-platform.org/ or
18 // email : webmaster.salome@opencascade.com<mailto:webmaster.salome@opencascade.com>
21 #include "SketcherPrs_PositionMgr.h"
22 #include "SketcherPrs_Tools.h"
24 #include <GeomAPI_Edge.h>
25 #include <GeomAPI_Curve.h>
26 #include <GeomAPI_Vertex.h>
27 #include <GeomAPI_Dir.h>
28 #include <GeomAPI_Ax3.h>
30 #include <SketchPlugin_Line.h>
31 #include <SketchPlugin_Circle.h>
32 #include <SketchPlugin_Arc.h>
34 #include <BRepExtrema_ExtPC.hxx>
35 #include <TopoDS_Vertex.hxx>
36 #include <Geom_Curve.hxx>
37 #include <TColGeom_SequenceOfCurve.hxx>
39 static SketcherPrs_PositionMgr* MyPosMgr = NULL;
41 // The class is implemented as a singlton
42 SketcherPrs_PositionMgr* SketcherPrs_PositionMgr::get()
45 MyPosMgr = new SketcherPrs_PositionMgr();
49 SketcherPrs_PositionMgr::SketcherPrs_PositionMgr()
54 int SketcherPrs_PositionMgr::getPositionIndex(ObjectPtr theLine,
55 const SketcherPrs_SymbolPrs* thePrs)
57 if (myShapes.count(theLine) == 1) {
58 // Find the map and add new [Presentation - Index] pair
59 PositionsMap& aPosMap = myShapes[theLine];
60 if (aPosMap.count(thePrs) == 1) {
61 // return existing index
62 return aPosMap[thePrs];
64 // Add a new [Presentation - Index] pair
65 int aInd = int(aPosMap.size());
66 aPosMap[thePrs] = aInd;
70 // Create a new map with initial index
73 myShapes[theLine] = aPosMap;
79 gp_Vec getVector(ObjectPtr theShape, GeomDirPtr theDir, gp_Pnt theP)
82 std::shared_ptr<GeomAPI_Shape> aShape = SketcherPrs_Tools::getShape(theShape);
83 if (aShape->isEdge()) {
84 std::shared_ptr<GeomAPI_Curve> aCurve =
85 std::shared_ptr<GeomAPI_Curve>(new GeomAPI_Curve(aShape));
87 if (aCurve->isCircle()) {
88 GeomEdgePtr aEdgePtr(new GeomAPI_Edge(aShape));
89 GeomVertexPtr aVertexPtr(new GeomAPI_Vertex(theP.X(), theP.Y(), theP.Z()));
90 BRepExtrema_ExtPC aExtrema(aVertexPtr->impl<TopoDS_Vertex>(),
91 aEdgePtr->impl<TopoDS_Edge>());
92 int aNb = aExtrema.NbExt();
94 for (int i = 1; i <= aNb; i++) {
95 if (aExtrema.IsMin(i)) {
96 double aParam = aExtrema.Parameter(i);
97 Handle(Geom_Curve) aCurv = aCurve->impl<Handle_Geom_Curve>();
99 aCurv->D1(aParam, aP, aVec);
105 double aMidParam = (aCurve->startParam() + aCurve->endParam()) / 2.;
106 GeomPointPtr aPnt1 = aCurve->getPoint((aMidParam + aCurve->endParam()) / 2.);
107 GeomPointPtr aPnt2 = aCurve->getPoint((aMidParam + aCurve->startParam()) / 2.);
109 gp_Pnt aPn2 = aPnt2->impl<gp_Pnt>();
110 if (aPn2.IsEqual(theP, Precision::Confusion()))
111 aVec = gp_Vec(aPn2, aPnt1->impl<gp_Pnt>());
113 aVec = gp_Vec(aPnt1->impl<gp_Pnt>(), aPn2);
116 aVec = gp_Vec(theDir->impl<gp_Dir>());
121 gp_Pnt SketcherPrs_PositionMgr::getPosition(ObjectPtr theShape,
122 const SketcherPrs_SymbolPrs* thePrs,
123 double theStep, GeomPointPtr thePnt)
125 std::shared_ptr<GeomAPI_Shape> aShape = SketcherPrs_Tools::getShape(theShape);
126 gp_Pnt aP; // Central point
129 return getPointPosition(theShape, thePrs, theStep, thePnt);
131 if (aShape->isEdge()) {
132 std::shared_ptr<GeomAPI_Curve> aCurve =
133 std::shared_ptr<GeomAPI_Curve>(new GeomAPI_Curve(aShape));
134 // this is a circle or arc
135 double aMidParam = (aCurve->startParam() + aCurve->endParam()) / 2.;
136 std::shared_ptr<GeomAPI_Pnt> aPnt = aCurve->getPoint(aMidParam);
137 aP = aPnt->impl<gp_Pnt>();
140 std::shared_ptr<GeomAPI_Vertex> aVertex =
141 std::shared_ptr<GeomAPI_Vertex>(new GeomAPI_Vertex(aShape));
142 std::shared_ptr<GeomAPI_Pnt> aPnt = aVertex->point();
143 aP = aPnt->impl<gp_Pnt>();
147 gp_Vec aVec1 = getVector(theShape, thePrs->plane()->dirX(), aP);
149 // Compute shifting vector for a one symbol
150 gp_Vec aShift = aVec1.Crossed(thePrs->plane()->normal()->impl<gp_Dir>());
152 aShift.Multiply(theStep * 0.8);
154 // Shift the position coordinate according to position index
155 int aPos = getPositionIndex(theShape, thePrs);
157 if ((aPos % 2) == 0) {
159 aP.Translate(aShift);
164 aM = -(aPos + 2) / 4;
168 aP.Translate(-aShift);
170 if ((aPos - 1) % 4 == 0)
173 aM = -(aPos + 1) / 4;
177 // Normalize vector along the line
179 aVec1.Multiply(theStep);
180 aP.Translate(aVec1.Multiplied(aM));
186 //*****************************************************************
187 //! Returns curves connected to the given point
188 TColGeom_SequenceOfCurve getCurves(const GeomPointPtr& thePnt, const SketcherPrs_SymbolPrs* thePrs)
190 TColGeom_SequenceOfCurve aList;
191 //GeomAx3Ptr aAx3 = thePrs->plane();
192 //CompositeFeaturePtr aOwner = thePrs->sketcher();
193 //GeomPnt2dPtr aPnt2d = thePnt->to2D(aAx3->origin(), aAx3->dirX(), aAx3->dirY());
195 //int aNbSubs = aOwner->numberOfSubs();
196 //for (int i = 0; i < aNbSubs; i++) {
197 // FeaturePtr aFeature = aOwner->subFeature(i);
198 // if (aFeature->getKind() == SketchPlugin_Line::ID()) {
199 // GeomPnt2dPtr aPnt1 =
200 // SketcherPrs_Tools::getPoint(aFeature.get(), SketchPlugin_Line::START_ID());
201 // GeomPnt2dPtr aPnt2 =
202 // SketcherPrs_Tools::getPoint(aFeature.get(), SketchPlugin_Line::END_ID());
203 // if (aPnt1->isEqual(aPnt2d) || aPnt2->isEqual(aPnt2d)) {
204 // GeomShapePtr aShp = SketcherPrs_Tools::getShape(aFeature->firstResult());
205 // GeomCurvePtr aCurv = std::shared_ptr<GeomAPI_Curve>(new GeomAPI_Curve(aShp));
206 // aList.Append(aCurv->impl<Handle(Geom_Curve)>());
208 // } else if ((aFeature->getKind() == SketchPlugin_Circle::ID()) ||
209 // (aFeature->getKind() == SketchPlugin_Arc::ID())) {
210 // GeomShapePtr aShp = SketcherPrs_Tools::getShape(aFeature->firstResult());
211 // GeomCurvePtr aCurv = std::shared_ptr<GeomAPI_Curve>(new GeomAPI_Curve(aShp));
217 //*****************************************************************
218 gp_Pnt SketcherPrs_PositionMgr::getPointPosition(
219 ObjectPtr theLine, const SketcherPrs_SymbolPrs* thePrs,
220 double theStep, GeomPointPtr thePnt)
222 TColGeom_SequenceOfCurve aCurves = getCurves(thePnt, thePrs);
224 gp_Pnt aP = thePnt->impl<gp_Pnt>();
225 gp_Vec aVec1 = getVector(theLine, thePrs->plane()->dirX(), aP);
227 // Compute shifting vector for a one symbol
228 gp_Vec aShift = aVec1.Crossed(thePrs->plane()->normal()->impl<gp_Dir>());
230 aShift.Multiply(theStep * 1.5);
231 aP.Translate(aShift);
235 //*****************************************************************
236 void SketcherPrs_PositionMgr::deleteConstraint(const SketcherPrs_SymbolPrs* thePrs)
238 std::map<ObjectPtr, PositionsMap>::iterator aIt;
239 std::list<ObjectPtr> aToDel;
240 // Clear map for deleted presentation
241 for (aIt = myShapes.begin(); aIt != myShapes.end(); ++aIt) {
242 PositionsMap& aPosMap = aIt->second;
243 if (aPosMap.count(thePrs) > 0) {
245 aPosMap.erase(aPosMap.find(thePrs));
246 if (aPosMap.size() == 0)
248 aToDel.push_back(aIt->first);
250 // Reindex objects positions in order to avoid spaces
251 PositionsMap::iterator aIt;
253 for (aIt = aPosMap.begin(); aIt != aPosMap.end(); aIt++, i++)
258 std::list<ObjectPtr>::const_iterator aListIt;
259 for (aListIt = aToDel.cbegin(); aListIt != aToDel.cend(); ++aListIt) {
260 myShapes.erase(*aListIt);