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>
31 #include <GeomDataAPI_Point2D.h>
33 #include <SketchPlugin_Line.h>
34 #include <SketchPlugin_Circle.h>
35 #include <SketchPlugin_Arc.h>
36 #include <SketchPlugin_ConstraintTangent.h>
37 #include <SketchPlugin_ConstraintPerpendicular.h>
39 #include <BRepExtrema_ExtPC.hxx>
40 #include <TopoDS_Vertex.hxx>
41 #include <Geom_Curve.hxx>
42 #include <TColGeom_SequenceOfCurve.hxx>
47 static SketcherPrs_PositionMgr* MyPosMgr = NULL;
49 #define PI 3.1415926535897932
51 // The class is implemented as a singlton
52 SketcherPrs_PositionMgr* SketcherPrs_PositionMgr::get()
55 MyPosMgr = new SketcherPrs_PositionMgr();
59 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 static std::list<std::string> aConstraints;
92 if (aConstraints.size() == 0) {
93 aConstraints.push_back(SketchPlugin_ConstraintTangent::ID());
94 aConstraints.push_back(SketchPlugin_ConstraintPerpendicular::ID());
96 std::list<std::string>::const_iterator aIt;
97 for (aIt = aConstraints.cbegin(); aIt != aConstraints.cend(); ++aIt) {
98 if ((*aIt) == theName)
104 bool containsPoint(const FeaturePtr& theFeature, GeomPnt2dPtr thePnt2d, GeomPointPtr thePos)
106 if (theFeature->getKind() == SketchPlugin_Line::ID()) {
107 AttributePoint2DPtr aSPnt1 = std::dynamic_pointer_cast<GeomDataAPI_Point2D>(
108 theFeature->data()->attribute(SketchPlugin_Line::START_ID()));
109 AttributePoint2DPtr aSPnt2 = std::dynamic_pointer_cast<GeomDataAPI_Point2D>(
110 theFeature->data()->attribute(SketchPlugin_Line::END_ID()));
112 GeomPnt2dPtr aPnt1 = aSPnt1->pnt();
113 GeomPnt2dPtr aPnt2 = aSPnt2->pnt();
115 if (aPnt1->isEqual(thePnt2d) || aPnt2->isEqual(thePnt2d))
117 } else if ((theFeature->getKind() == SketchPlugin_Circle::ID()) ||
118 (theFeature->getKind() == SketchPlugin_Arc::ID())) {
121 std::list<ResultPtr> aResults = theFeature->results();
122 std::list<ResultPtr>::const_iterator aIt;
123 for (aIt = aResults.cbegin(); aIt != aResults.cend(); aIt++) {
124 GeomShapePtr aShp = SketcherPrs_Tools::getShape((*aIt));
125 if (aShp->isEdge()) {
127 aCurve = std::shared_ptr<GeomAPI_Curve>(new GeomAPI_Curve(aShp));
132 double aStart = aCurve->startParam();
133 double aEnd = aCurve->endParam();
134 GeomCirclePtr aCircle = GeomCirclePtr(new GeomAPI_Circ(aCurve));
136 if (aCircle->parameter(thePos, 1.e-4, aParam) && (aParam >= aStart) && (aParam <= aEnd))
143 int SketcherPrs_PositionMgr::getPositionIndex(GeomPointPtr thePos, const SketcherPrs_SymbolPrs* thePrs)
145 if (myPntShapes.count(thePrs->feature()) == 0) {
146 // Renumerate positions around the specified constraint point for all constraints
147 GeomAx3Ptr aAx3 = thePrs->plane();
148 ModelAPI_CompositeFeature* aOwner = thePrs->sketcher();
149 GeomPnt2dPtr aPnt2d = thePos->to2D(aAx3->origin(), aAx3->dirX(), aAx3->dirY());
151 int aNbSubs = aOwner->numberOfSubs();
153 for (int i = 0; i < aNbSubs; i++) {
154 FeaturePtr aFeature = aOwner->subFeature(i);
156 if (myPntShapes.count(aFeature.get()) == 1) {
157 myPntShapes[aFeature.get()] = aId;
160 if (isPntConstraint(aFeature->getKind())) {
161 DataPtr aData = aFeature->data();
162 AttributeRefAttrPtr aObjRef = aData->refattr(SketchPlugin_Constraint::ENTITY_A());
163 FeaturePtr aObj = ModelAPI_Feature::feature(aObjRef->object());
164 bool aContains = false;
165 if (containsPoint(aObj, aPnt2d, thePos)) {
168 aObjRef = aData->refattr(SketchPlugin_Constraint::ENTITY_B());
169 aObj = ModelAPI_Feature::feature(aObjRef->object());
170 if (containsPoint(aObj, aPnt2d, thePos)) {
175 myPntShapes[aFeature.get()] = aId;
182 return myPntShapes[thePrs->feature()];
186 gp_Vec getVector(ObjectPtr theShape, GeomDirPtr theDir, gp_Pnt theP)
189 std::shared_ptr<GeomAPI_Shape> aShape = SketcherPrs_Tools::getShape(theShape);
190 if (aShape->isEdge()) {
191 std::shared_ptr<GeomAPI_Curve> aCurve =
192 std::shared_ptr<GeomAPI_Curve>(new GeomAPI_Curve(aShape));
194 if (aCurve->isCircle()) {
195 GeomEdgePtr aEdgePtr(new GeomAPI_Edge(aShape));
196 GeomVertexPtr aVertexPtr(new GeomAPI_Vertex(theP.X(), theP.Y(), theP.Z()));
197 BRepExtrema_ExtPC aExtrema(aVertexPtr->impl<TopoDS_Vertex>(),
198 aEdgePtr->impl<TopoDS_Edge>());
199 int aNb = aExtrema.NbExt();
201 for (int i = 1; i <= aNb; i++) {
202 if (aExtrema.IsMin(i)) {
203 double aParam = aExtrema.Parameter(i);
204 Handle(Geom_Curve) aCurv = aCurve->impl<Handle_Geom_Curve>();
206 aCurv->D1(aParam, aP, aVec);
212 GeomPointPtr aPnt1 = aCurve->getPoint(aCurve->endParam());
213 GeomPointPtr aPnt2 = aCurve->getPoint(aCurve->startParam());
215 gp_Pnt aPn2 = aPnt2->impl<gp_Pnt>();
216 if (aPn2.IsEqual(theP, Precision::Confusion()))
217 aVec = gp_Vec(aPn2, aPnt1->impl<gp_Pnt>());
219 aVec = gp_Vec(aPnt1->impl<gp_Pnt>(), aPn2);
222 aVec = gp_Vec(theDir->impl<gp_Dir>());
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()) // 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->isEqual(aPnt2d) || aPnt2->isEqual(aPnt2d)) {
317 GeomShapePtr aShp = SketcherPrs_Tools::getShape(aFeature->firstResult());
318 GeomCurvePtr aCurv = std::shared_ptr<GeomAPI_Curve>(new GeomAPI_Curve(aShp));
319 aList.push_back(aFeature->firstResult());
321 } else if ((aFeature->getKind() == SketchPlugin_Circle::ID()) ||
322 (aFeature->getKind() == SketchPlugin_Arc::ID())) {
325 std::list<ResultPtr> aResults = aFeature->results();
326 std::list<ResultPtr>::const_iterator aIt;
327 for (aIt = aResults.cbegin(); aIt != aResults.cend(); aIt++) {
328 GeomShapePtr aShp = SketcherPrs_Tools::getShape((*aIt));
329 if (aShp->isEdge()) {
331 aCurve = std::shared_ptr<GeomAPI_Curve>(new GeomAPI_Curve(aShp));
336 double aStart = aCurve->startParam();
337 double aEnd = aCurve->endParam();
338 GeomCirclePtr aCircle = GeomCirclePtr(new GeomAPI_Circ(aCurve));
340 if (aCircle->parameter(thePnt, 1.e-4, aParam) && (aParam >= aStart) && (aParam <= aEnd))
341 aList.push_back(aResObj);
348 //*****************************************************************
349 gp_Pnt SketcherPrs_PositionMgr::getPointPosition(
350 ObjectPtr theLine, const SketcherPrs_SymbolPrs* thePrs,
351 double theStep, GeomPointPtr thePnt)
353 gp_Pnt aP = thePnt->impl<gp_Pnt>();
354 GeomDirPtr aNormal = thePrs->plane()->normal();
355 gp_Dir aNormDir = aNormal->impl<gp_Dir>();
357 std::list<ObjectPtr> aCurves = getCurves(thePnt, thePrs);
358 std::list<ObjectPtr>::const_iterator aItCurv;
359 std::list<gp_Vec> aVectorsList;
360 // Calculate all vectors
361 for (aItCurv = aCurves.cbegin(); aItCurv != aCurves.cend(); aItCurv++) {
362 aVectorsList.push_back(getVector((*aItCurv), thePrs->plane()->dirX(), aP));
365 std::list<gp_Vec>::const_iterator aItVec;
366 std::map<double, gp_Vec> aAngVectors;
367 // Select closest vectors and calculate angles between base vector and closest vector
368 for (aItVec = aVectorsList.cbegin(); aItVec != aVectorsList.cend(); aItVec++) {
369 std::list<gp_Vec>::const_iterator aIt;
371 gp_Vec aVec = *aItVec;
372 for (aIt = aVectorsList.cbegin(); aIt != aVectorsList.cend(); aIt++) {
373 double aAng = aVec.AngleWithRef(*aIt, aNormDir);
376 aAng = 2 * PI + aAng;
380 else if (aAng < aMinAng) {
385 aAngVectors[aMinAng] = aVec;
388 // Angle size of a symbol for a first level
389 static const double aAngleStep = PI * 50./180.;
391 // Position of the symbol
392 int aPos = getPositionIndex(thePnt, thePrs);
394 //std::list<double>::const_iterator aItAng;
395 gp_Ax1 aRotAx(aP, aNormDir);
396 int aPosId = 0; // Last used position
399 std::map<double, gp_Vec>::const_iterator aItAng;
400 for (aItAng = aAngVectors.cbegin(); aItAng != aAngVectors.cend(); ++aItAng) {
401 aAng = aItAng->first;
402 aPrevVec = aItAng->second;
403 if (aAng >= aAngleStep) {
405 int Nb = int(aAng / aAngleStep);
406 if ((aPos >= aPosId) && (aPos < (aPosId + Nb))) {
407 // rotate base vector on a necessary angle
408 aShift = aPrevVec.Rotated(aRotAx, aAngleStep + aAngleStep * (aPos - aPosId));
410 aShift.Multiply(theStep * 1.5);
411 return aP.Translated(aShift);
416 gp_Vec aShift = aPrevVec.Rotated(aRotAx, aAngleStep);
418 aShift.Multiply(theStep * 1.5);
419 return aP.Translated(aShift);
422 //*****************************************************************
423 void SketcherPrs_PositionMgr::deleteConstraint(const SketcherPrs_SymbolPrs* thePrs)
425 std::map<ObjectPtr, PositionsMap>::iterator aIt;
426 std::list<ObjectPtr> aToDel;
427 // Clear map for deleted presentation
428 for (aIt = myShapes.begin(); aIt != myShapes.end(); ++aIt) {
429 PositionsMap& aPosMap = aIt->second;
430 if (aPosMap.count(thePrs) > 0) {
432 aPosMap.erase(aPosMap.find(thePrs));
433 if (aPosMap.size() == 0)
435 aToDel.push_back(aIt->first);
437 // Reindex objects positions in order to avoid spaces
438 PositionsMap::iterator aIt;
440 for (aIt = aPosMap.begin(); aIt != aPosMap.end(); aIt++, i++)
445 std::list<ObjectPtr>::const_iterator aListIt;
446 for (aListIt = aToDel.cbegin(); aListIt != aToDel.cend(); ++aListIt) {
447 myShapes.erase(*aListIt);