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>
29 #include <GeomAPI_Circ.h>
30 #include <GeomAPI_Lin2d.h>
32 #include <GeomDataAPI_Point2D.h>
34 #include <SketchPlugin_Line.h>
35 #include <SketchPlugin_Circle.h>
36 #include <SketchPlugin_Arc.h>
37 #include <SketchPlugin_ConstraintTangent.h>
38 #include <SketchPlugin_ConstraintPerpendicular.h>
40 #include <TopoDS_Vertex.hxx>
41 #include <Geom_Curve.hxx>
42 #include <GeomAPI_ProjectPointOnCurve.hxx>
43 #include <TColGeom_SequenceOfCurve.hxx>
48 static SketcherPrs_PositionMgr* MyPosMgr = NULL;
50 #define PI 3.1415926535897932
52 // The class is implemented as a singlton
53 SketcherPrs_PositionMgr* SketcherPrs_PositionMgr::get()
56 MyPosMgr = new SketcherPrs_PositionMgr();
60 SketcherPrs_PositionMgr::SketcherPrs_PositionMgr()
64 int SketcherPrs_PositionMgr::getPositionIndex(ObjectPtr theLine,
65 const SketcherPrs_SymbolPrs* thePrs)
67 if (myShapes.count(theLine) == 1) {
68 // Find the map and add new [Presentation - Index] pair
69 PositionsMap& aPosMap = myShapes[theLine];
70 if (aPosMap.count(thePrs) == 1) {
71 // return existing index
72 return aPosMap[thePrs];
74 // Add a new [Presentation - Index] pair
75 int aInd = int(aPosMap.size());
76 aPosMap[thePrs] = aInd;
80 // Create a new map with initial index
83 myShapes[theLine] = aPosMap;
89 bool SketcherPrs_PositionMgr::isPntConstraint(const std::string& theName)
91 return ((theName == SketchPlugin_ConstraintTangent::ID()) ||
92 (theName == SketchPlugin_ConstraintPerpendicular::ID()));
95 bool containsPoint(const FeaturePtr& theFeature, GeomPnt2dPtr thePnt2d, GeomPointPtr thePos)
97 if (theFeature->getKind() == SketchPlugin_Line::ID()) {
98 AttributePoint2DPtr aSPnt1 = std::dynamic_pointer_cast<GeomDataAPI_Point2D>(
99 theFeature->data()->attribute(SketchPlugin_Line::START_ID()));
100 AttributePoint2DPtr aSPnt2 = std::dynamic_pointer_cast<GeomDataAPI_Point2D>(
101 theFeature->data()->attribute(SketchPlugin_Line::END_ID()));
103 GeomPnt2dPtr aPnt1 = aSPnt1->pnt();
104 GeomPnt2dPtr aPnt2 = aSPnt2->pnt();
106 if (aPnt1->isEqual(thePnt2d) || aPnt2->isEqual(thePnt2d))
108 } else if ((theFeature->getKind() == SketchPlugin_Circle::ID()) ||
109 (theFeature->getKind() == SketchPlugin_Arc::ID())) {
112 std::list<ResultPtr> aResults = theFeature->results();
113 std::list<ResultPtr>::const_iterator aIt;
114 for (aIt = aResults.cbegin(); aIt != aResults.cend(); aIt++) {
115 GeomShapePtr aShp = SketcherPrs_Tools::getShape((*aIt));
116 if (aShp->isEdge()) {
118 aCurve = std::shared_ptr<GeomAPI_Curve>(new GeomAPI_Curve(aShp));
123 double aStart = aCurve->startParam();
124 double aEnd = aCurve->endParam();
125 GeomCirclePtr aCircle = GeomCirclePtr(new GeomAPI_Circ(aCurve));
127 if (aCircle->parameter(thePos, 1.e-4, aParam) && (aParam >= aStart) && (aParam <= aEnd))
134 const std::array<int, 2>& SketcherPrs_PositionMgr::getPositionIndex(GeomPointPtr thePos,
135 const SketcherPrs_SymbolPrs* thePrs)
137 if (myPntShapes.count(thePrs->feature()) == 0) {
138 // Renumerate positions around the specified constraint point for all constraints
139 GeomAx3Ptr aAx3 = thePrs->plane();
140 ModelAPI_CompositeFeature* aOwner = thePrs->sketcher();
141 GeomPnt2dPtr aPnt2d = thePos->to2D(aAx3->origin(), aAx3->dirX(), aAx3->dirY());
143 int aNbSubs = aOwner->numberOfSubs();
145 std::list<const ModelAPI_Feature*> aFeaList;
146 for (int i = 0; i < aNbSubs; i++) {
147 FeaturePtr aFeature = aOwner->subFeature(i);
149 bool aUseFeature = ((myPntShapes.count(aFeature.get()) == 1) ||
150 (isPntConstraint(aFeature->getKind())));
152 DataPtr aData = aFeature->data();
153 AttributeRefAttrPtr aObjRef = aData->refattr(SketchPlugin_Constraint::ENTITY_A());
154 FeaturePtr aObj = ModelAPI_Feature::feature(aObjRef->object());
155 bool aContains = false;
156 if (containsPoint(aObj, aPnt2d, thePos)) {
159 aObjRef = aData->refattr(SketchPlugin_Constraint::ENTITY_B());
160 aObj = ModelAPI_Feature::feature(aObjRef->object());
161 if (containsPoint(aObj, aPnt2d, thePos)) {
166 myPntShapes[aFeature.get()][0] = aId;
168 aFeaList.push_back(aFeature.get());
172 int aSize = (int) aFeaList.size();
173 std::list<const ModelAPI_Feature*>::const_iterator aIt;
174 for (aIt = aFeaList.cbegin(); aIt != aFeaList.cend(); aIt++) {
175 myPntShapes[*aIt][1] = aSize;
178 return myPntShapes[thePrs->feature()];
181 //*****************************************************************
182 gp_Vec getVector(ObjectPtr theShape, GeomDirPtr theDir, gp_Pnt theP)
185 std::shared_ptr<GeomAPI_Shape> aShape = SketcherPrs_Tools::getShape(theShape);
186 if (aShape->isEdge()) {
187 std::shared_ptr<GeomAPI_Curve> aCurve =
188 std::shared_ptr<GeomAPI_Curve>(new GeomAPI_Curve(aShape));
190 if (aCurve->isCircle()) {
191 Handle(Geom_Curve) aCurv = aCurve->impl<Handle_Geom_Curve>();
192 GeomAPI_ProjectPointOnCurve anExtr(theP, aCurv);
193 double aParam = anExtr.LowerDistanceParameter();
195 aCurv->D1(aParam, aP, aVec);
196 // 2458: check correct orientation of the vector
197 if (aVec.SquareMagnitude() > Precision::Confusion()) {
198 std::shared_ptr<GeomAPI_Edge> aCircEdge(new GeomAPI_Edge(aShape));
199 double aFirstParam, aLastParam;
200 aCircEdge->getRange(aFirstParam, aLastParam);
201 // if parameter is near the LastParam, make the vector go inside (reverse)
202 double aDelta = aLastParam - aParam;
203 while (aDelta < -Precision::Confusion())
205 while (aDelta > 2. * M_PI - Precision::Confusion())
207 if (fabs(aDelta) < Precision::Confusion())
211 GeomPointPtr aPnt1 = aCurve->getPoint(aCurve->endParam());
212 GeomPointPtr aPnt2 = aCurve->getPoint(aCurve->startParam());
214 gp_Pnt aPn2 = aPnt2->impl<gp_Pnt>();
215 if (aPn2.IsEqual(theP, Precision::Confusion()))
216 aVec = gp_Vec(aPn2, aPnt1->impl<gp_Pnt>());
218 aVec = gp_Vec(aPnt1->impl<gp_Pnt>(), aPn2);
221 aVec = gp_Vec(theDir->impl<gp_Dir>());
226 //*****************************************************************
227 gp_Pnt SketcherPrs_PositionMgr::getPosition(ObjectPtr theShape,
228 const SketcherPrs_SymbolPrs* thePrs,
229 double theStep, GeomPointPtr thePnt)
231 std::shared_ptr<GeomAPI_Shape> aShape = SketcherPrs_Tools::getShape(theShape);
232 gp_Pnt aP; // Central point
235 return getPointPosition(theShape, thePrs, theStep, thePnt);
237 if (aShape->isEdge()) {
238 std::shared_ptr<GeomAPI_Curve> aCurve =
239 std::shared_ptr<GeomAPI_Curve>(new GeomAPI_Curve(aShape));
240 // this is a circle or arc
241 double aMidParam = (aCurve->startParam() + aCurve->endParam()) / 2.;
242 std::shared_ptr<GeomAPI_Pnt> aPnt = aCurve->getPoint(aMidParam);
243 aP = aPnt->impl<gp_Pnt>();
246 std::shared_ptr<GeomAPI_Vertex> aVertex =
247 std::shared_ptr<GeomAPI_Vertex>(new GeomAPI_Vertex(aShape));
248 std::shared_ptr<GeomAPI_Pnt> aPnt = aVertex->point();
249 aP = aPnt->impl<gp_Pnt>();
253 gp_Vec aVec1 = getVector(theShape, thePrs->plane()->dirX(), aP);
255 // Compute shifting vector for a one symbol
256 gp_Vec aShift = aVec1.Crossed(thePrs->plane()->normal()->impl<gp_Dir>());
258 aShift.Multiply(theStep * 0.8);
260 // Shift the position coordinate according to position index
261 int aPos = getPositionIndex(theShape, thePrs);
263 if ((aPos % 2) == 0) {
265 aP.Translate(aShift);
270 aM = -(aPos + 2) / 4;
274 aP.Translate(-aShift);
276 if ((aPos - 1) % 4 == 0)
279 aM = -(aPos + 1) / 4;
283 // Normalize vector along the line
285 aVec1.Multiply(theStep);
286 aP.Translate(aVec1.Multiplied(aM));
292 //*****************************************************************
293 //! Returns curves connected to the given point
294 std::list<ObjectPtr> getCurves(const GeomPointPtr& thePnt, const SketcherPrs_SymbolPrs* thePrs)
296 std::list<ObjectPtr> aList;
297 GeomAx3Ptr aAx3 = thePrs->plane();
298 ModelAPI_CompositeFeature* aOwner = thePrs->sketcher();
299 GeomPnt2dPtr aPnt2d = thePnt->to2D(aAx3->origin(), aAx3->dirX(), aAx3->dirY());
301 int aNbSubs = aOwner->numberOfSubs();
302 for (int i = 0; i < aNbSubs; i++) {
303 FeaturePtr aFeature = aOwner->subFeature(i);
304 if (!aFeature->firstResult().get() || aFeature->firstResult()->isDisabled())
305 continue; // There is no result
307 if (aFeature->getKind() == SketchPlugin_Line::ID()) {
308 AttributePoint2DPtr aSPnt1 = std::dynamic_pointer_cast<GeomDataAPI_Point2D>(
309 aFeature->data()->attribute(SketchPlugin_Line::START_ID()));
310 AttributePoint2DPtr aSPnt2 = std::dynamic_pointer_cast<GeomDataAPI_Point2D>(
311 aFeature->data()->attribute(SketchPlugin_Line::END_ID()));
313 GeomPnt2dPtr aPnt1 = aSPnt1->pnt();
314 GeomPnt2dPtr aPnt2 = aSPnt2->pnt();
316 if (aPnt1->distance(aPnt2d) <= Precision::Confusion() ||
317 aPnt2->distance(aPnt2d) <= Precision::Confusion()) {
318 // a point corresponds to one of the line end
319 GeomShapePtr aShp = SketcherPrs_Tools::getShape(aFeature->firstResult());
320 GeomCurvePtr aCurv = std::shared_ptr<GeomAPI_Curve>(new GeomAPI_Curve(aShp));
321 aList.push_back(aFeature->firstResult());
323 // Check that a point belongs to the curve
324 GeomAPI_Lin2d aLin2d(aPnt1, aPnt2);
325 double aDist = aLin2d.distance(aPnt2d);
326 if (aDist <= Precision::Confusion())
327 aList.push_back(aFeature->firstResult());
329 } else if ((aFeature->getKind() == SketchPlugin_Circle::ID()) ||
330 (aFeature->getKind() == SketchPlugin_Arc::ID())) {
333 std::list<ResultPtr> aResults = aFeature->results();
334 std::list<ResultPtr>::const_iterator aIt;
335 for (aIt = aResults.cbegin(); aIt != aResults.cend(); aIt++) {
336 GeomShapePtr aShp = SketcherPrs_Tools::getShape((*aIt));
337 if (aShp->isEdge()) {
339 aCurve = std::shared_ptr<GeomAPI_Curve>(new GeomAPI_Curve(aShp));
344 double aStart = aCurve->startParam();
345 double aEnd = aCurve->endParam();
346 GeomCirclePtr aCircle = GeomCirclePtr(new GeomAPI_Circ(aCurve));
347 GeomPointPtr aProjPnt = aCircle->project(thePnt);
348 if (aProjPnt && thePnt->distance(aProjPnt) <= Precision::Confusion())
349 aList.push_back(aResObj);
356 //*****************************************************************
357 gp_Pnt SketcherPrs_PositionMgr::getPointPosition(
358 ObjectPtr theLine, const SketcherPrs_SymbolPrs* thePrs,
359 double theStep, GeomPointPtr thePnt)
361 gp_Pnt aP = thePnt->impl<gp_Pnt>();
362 GeomDirPtr aNormal = thePrs->plane()->normal();
363 gp_Dir aNormDir = aNormal->impl<gp_Dir>();
365 std::list<ObjectPtr> aCurves = getCurves(thePnt, thePrs);
366 std::list<ObjectPtr>::const_iterator aItCurv;
367 std::list<gp_Vec> aVectorsList;
368 // Calculate all vectors
369 for (aItCurv = aCurves.cbegin(); aItCurv != aCurves.cend(); aItCurv++) {
370 aVectorsList.push_back(getVector((*aItCurv), thePrs->plane()->dirX(), aP));
373 // Position of the symbol
374 const std::array<int, 2>& aPos = getPositionIndex(thePnt, thePrs);
376 // Angle size of a symbol
377 //double aAngleStep = PI * 50./180.;
378 double aAngleStep = PI/4.;
380 std::list<gp_Vec>::const_iterator aItVec;
381 std::list<double> aAngles;
382 std::list<gp_Vec> aVectors;
383 // Select closest vectors and calculate angles between base vector and closest vector
384 for (aItVec = aVectorsList.cbegin(); aItVec != aVectorsList.cend(); aItVec++) {
385 std::list<gp_Vec>::const_iterator aIt;
387 gp_Vec aVec = *aItVec;
388 for (aIt = aVectorsList.cbegin(); aIt != aVectorsList.cend(); aIt++) {
389 double aAng = aVec.AngleWithRef(*aIt, aNormDir);
392 aAng = 2 * PI + aAng;
396 else if (aAng < aMinAng) {
401 if (aMinAng >= aAngleStep) {
402 aVectors.push_back(aVec);
403 aAngles.push_back(aMinAng);
407 gp_Ax1 aRotAx(aP, aNormDir);
409 // If number of angle less then number of symbols then each symbol can be placed
410 // directly inside of the angle
411 if (aAngles.size() >= aPos[1] && !aVectors.empty()) {
413 aVecPos = *(std::next(aVectors.begin(), aId));
415 gp_Vec aShift = aVecPos.Rotated(aRotAx, aAngleStep);
417 aShift.Multiply(theStep * 1.5);
418 return aP.Translated(aShift);
421 // A case when there are a lot of symbols
424 std::list<double>::const_iterator aItAng;
427 bool aHasPlace = false;
428 //int aIntId = 0; // a position inside a one sector
429 while (aPosCount < aPos[1]) {
430 for (aItAng = aAngles.cbegin(), aItVec = aVectors.cbegin();
431 aItAng != aAngles.cend(); ++aItAng, ++aItVec) {
433 int Nb = int(aAng / aAngleStep);
436 if ((!aHasPlace) && (aPosCount >= (aPos[0] + 1))) {
440 //aIntId = aPos[0] - (aPosCount - Nb);
443 if (aPosCount < aPos[1]) {
453 // rotate base vector on a necessary angle
454 gp_Vec aShift = aVecPos.Rotated(aRotAx, aAngleStep + aAngleStep * aPos[0]);
456 aShift.Multiply(theStep * 1.5);
457 return aP.Translated(aShift);
462 //*****************************************************************
463 void SketcherPrs_PositionMgr::deleteConstraint(const SketcherPrs_SymbolPrs* thePrs)
465 std::map<ObjectPtr, PositionsMap>::iterator aIt;
466 std::list<ObjectPtr> aToDel;
467 // Clear map for deleted presentation
468 for (aIt = myShapes.begin(); aIt != myShapes.end(); ++aIt) {
469 PositionsMap& aPosMap = aIt->second;
470 if (aPosMap.count(thePrs) > 0) {
472 aPosMap.erase(aPosMap.find(thePrs));
473 if (aPosMap.size() == 0)
475 aToDel.push_back(aIt->first);
477 // Reindex objects positions in order to avoid spaces
478 PositionsMap::iterator aIt;
480 for (aIt = aPosMap.begin(); aIt != aPosMap.end(); aIt++, i++)
485 std::list<ObjectPtr>::const_iterator aListIt;
486 for (aListIt = aToDel.cbegin(); aListIt != aToDel.cend(); ++aListIt) {
487 myShapes.erase(*aListIt);