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 "SketchPlugin_Fillet.h"
23 #include "SketchPlugin_Arc.h"
24 #include "SketchPlugin_Line.h"
25 #include "SketchPlugin_Point.h"
26 #include "SketchPlugin_Sketch.h"
27 #include "SketchPlugin_ConstraintDistance.h"
28 #include "SketchPlugin_ConstraintEqual.h"
29 #include "SketchPlugin_ConstraintCoincidence.h"
30 #include "SketchPlugin_ConstraintLength.h"
31 #include "SketchPlugin_ConstraintMiddle.h"
32 #include "SketchPlugin_ConstraintTangent.h"
33 #include "SketchPlugin_ConstraintRadius.h"
34 #include "SketchPlugin_Tools.h"
36 #include <ModelAPI_AttributeDouble.h>
37 #include <ModelAPI_AttributeInteger.h>
38 #include <ModelAPI_AttributeRefAttr.h>
39 #include <ModelAPI_Data.h>
40 #include <ModelAPI_Events.h>
41 #include <ModelAPI_Session.h>
42 #include <ModelAPI_Tools.h>
43 #include <ModelAPI_Validator.h>
45 #include <GeomAlgoAPI_Circ2dBuilder.h>
46 #include <GeomAlgoAPI_EdgeBuilder.h>
48 #include <GeomAPI_Circ2d.h>
49 #include <GeomAPI_Dir2d.h>
50 #include <GeomAPI_Lin2d.h>
51 #include <GeomAPI_Pnt2d.h>
52 #include <GeomAPI_XY.h>
54 #include <GeomDataAPI_Point2D.h>
56 #include <Events_Loop.h>
60 const double tolerance = 1.e-7;
61 const double paramTolerance = 1.e-4;
62 const double PI = 3.141592653589793238463;
64 /// \brief Attract specified point on theNewArc to the attribute of theFeature
65 static void recalculateAttributes(FeaturePtr theNewArc, const std::string& theNewArcAttribute,
66 FeaturePtr theFeature, const std::string& theFeatureAttribute);
69 /// \brief Calculate radius of a fillet.
70 /// It should not be greater than 1/3 of shortest edge length.
71 static double calculateFilletRadius(FeaturePtr theFilletFeatures[2]);
73 /// \brief Calculates center of fillet arc and coordinates of tangency points
74 static void calculateFilletCenter(FeaturePtr theFilletFeatures[2],
75 double theFilletRadius,
76 const std::shared_ptr<GeomAPI_Ax3>& theSketchPlane,
77 std::shared_ptr<GeomAPI_XY>& theCenter,
78 std::shared_ptr<GeomAPI_XY>& theTangentA,
79 std::shared_ptr<GeomAPI_XY>& theTangentB);
81 static std::set<FeaturePtr> findFeaturesToRemove(const FeaturePtr theFeature,
82 const AttributePtr theAttribute);
84 SketchPlugin_Fillet::SketchPlugin_Fillet()
85 : myFilletCreated(false)
89 void SketchPlugin_Fillet::initAttributes()
91 data()->addAttribute(FILLET_POINT_ID(), ModelAPI_AttributeRefAttr::typeId());
94 void SketchPlugin_Fillet::execute()
96 // Wait all constraints being created, then send update events
97 static Events_ID anUpdateEvent = Events_Loop::eventByName(EVENT_OBJECT_UPDATED);
98 bool isUpdateFlushed = Events_Loop::loop()->isFlushed(anUpdateEvent);
100 Events_Loop::loop()->setFlushed(anUpdateEvent, false);
102 // set flag here to avoid building Fillet presentation if "Redisplay" event appears
103 myFilletCreated = true;
105 // create feature for fillet arc
106 FeaturePtr aFilletArc = createFilletArc();
108 // collect features referred to the edges participating in fillet
109 AttributePoint2DPtr aFilletPoints[2];
112 std::set<FeaturePtr> aFeaturesToBeRemoved;
113 for (int i = 0; i < 2; ++i) {
114 bool isFirstIndex = (i == 0);
115 aFeatInd[i] = myIsReversed == isFirstIndex ? 1 : 0;
116 anAttrInd[i] = (myIsReversed == isFirstIndex ? 2 : 0) + (myIsNotInversed[aFeatInd[i]] ? 0 : 1);
117 aFilletPoints[i] = std::dynamic_pointer_cast<GeomDataAPI_Point2D>(
118 myBaseFeatures[aFeatInd[i]]->attribute(myFeatAttributes[anAttrInd[i]]));
119 std::set<FeaturePtr> aRemove =
120 findFeaturesToRemove(myBaseFeatures[aFeatInd[i]], aFilletPoints[i]);
121 aFeaturesToBeRemoved.insert(aRemove.begin(), aRemove.end());
124 // keep "distance" constraints and remove all other references
125 removeReferencesButKeepDistances(aFeaturesToBeRemoved, aFilletPoints);
127 // Update fillet edges.
128 recalculateAttributes(aFilletArc, SketchPlugin_Arc::START_ID(),
129 myBaseFeatures[aFeatInd[0]], myFeatAttributes[anAttrInd[0]]);
130 recalculateAttributes(aFilletArc, SketchPlugin_Arc::END_ID(),
131 myBaseFeatures[aFeatInd[1]], myFeatAttributes[anAttrInd[1]]);
133 FeaturePtr aConstraint;
135 // Create coincidence features.
136 aConstraint = SketchPlugin_Tools::createConstraintAttrAttr(sketch(),
137 SketchPlugin_ConstraintCoincidence::ID(),
138 aFilletArc->attribute(SketchPlugin_Arc::START_ID()),
139 myBaseFeatures[aFeatInd[0]]->attribute(myFeatAttributes[anAttrInd[0]]));
140 ModelAPI_EventCreator::get()->sendUpdated(aConstraint, anUpdateEvent);
141 aConstraint = SketchPlugin_Tools::createConstraintAttrAttr(sketch(),
142 SketchPlugin_ConstraintCoincidence::ID(),
143 aFilletArc->attribute(SketchPlugin_Arc::END_ID()),
144 myBaseFeatures[aFeatInd[1]]->attribute(myFeatAttributes[anAttrInd[1]]));
145 ModelAPI_EventCreator::get()->sendUpdated(aConstraint, anUpdateEvent);
147 // Create tangent features.
148 for (int i = 0; i < 2; i++) {
149 aConstraint = SketchPlugin_Tools::createConstraintObjectObject(sketch(),
150 SketchPlugin_ConstraintTangent::ID(),
151 aFilletArc->lastResult(),
152 myBaseFeatures[i]->lastResult());
153 aConstraint->execute();
154 ModelAPI_EventCreator::get()->sendUpdated(aConstraint, anUpdateEvent);
157 // Send events to update the sub-features by the solver.
159 Events_Loop::loop()->setFlushed(anUpdateEvent, true);
162 AISObjectPtr SketchPlugin_Fillet::getAISObject(AISObjectPtr thePrevious)
164 if(myFilletCreated) {
165 return AISObjectPtr();
168 SketchPlugin_Sketch* aSketch = sketch();
170 return AISObjectPtr();
173 if (!calculateFilletParameters())
174 return AISObjectPtr();
176 // Create arc for presentation.
177 std::shared_ptr<GeomAPI_Pnt> aCenterPnt(aSketch->to3D(myCenterXY->x(), myCenterXY->y()));
178 std::shared_ptr<GeomAPI_Pnt> aTangentPnt1(aSketch->to3D(myTangentXY1->x(),
180 std::shared_ptr<GeomAPI_Pnt> aTangentPnt2(aSketch->to3D(myTangentXY2->x(),
182 std::shared_ptr<GeomDataAPI_Dir> aNDir = std::dynamic_pointer_cast<GeomDataAPI_Dir>(
183 aSketch->data()->attribute(SketchPlugin_Sketch::NORM_ID()));
184 std::shared_ptr<GeomAPI_Shape> anArcShape =
185 GeomAlgoAPI_EdgeBuilder::lineCircleArc(aCenterPnt, aTangentPnt1, aTangentPnt2, aNDir->dir());
187 AISObjectPtr anAISObject = thePrevious;
188 if(!anAISObject.get()) {
189 anAISObject = AISObjectPtr(new GeomAPI_AISObject);
191 anAISObject->createShape(anArcShape);
195 bool SketchPlugin_Fillet::calculateFilletParameters()
198 AttributeRefAttrPtr aPointRefAttr = refattr(FILLET_POINT_ID());
199 if (!aPointRefAttr->isInitialized() || aPointRefAttr->isObject())
201 std::shared_ptr<GeomDataAPI_Point2D> aFilletPoint2D =
202 std::dynamic_pointer_cast<GeomDataAPI_Point2D>(aPointRefAttr->attr());
203 if (!aFilletPoint2D.get())
206 std::set<AttributePoint2DPtr> aCoincidentPoints =
207 SketchPlugin_Tools::findPointsCoincidentToPoint(aFilletPoint2D);
208 std::set<FeaturePtr> aFilletFeatures;
209 for (std::set<AttributePoint2DPtr>::iterator aCPIt = aCoincidentPoints.begin();
210 aCPIt != aCoincidentPoints.end(); ++aCPIt) {
211 FeaturePtr anOwner = ModelAPI_Feature::feature((*aCPIt)->owner());
213 aFilletFeatures.insert(anOwner);
215 if (aFilletFeatures.size() != 2) {
216 setError("Error: Selected point does not have two suitable edges for fillet.");
220 std::set<FeaturePtr>::iterator aFIt = aFilletFeatures.begin();
221 myBaseFeatures[0] = *aFIt;
222 myBaseFeatures[1] = *(++aFIt);
224 std::shared_ptr<GeomAPI_Pnt2d> aFilletPnt2d = aFilletPoint2D->pnt();
225 double aRadius = calculateFilletRadius(myBaseFeatures);
227 // Calculate arc attributes.
228 static const int aNbFeatures = 2;
229 // First pair of points relate to first feature, second pair - to second.
230 std::shared_ptr<GeomAPI_Pnt2d> aStartEndPnt[aNbFeatures * 2];
231 for (int i = 0; i < aNbFeatures; i++) {
232 std::string aStartAttr, aEndAttr;
233 if (myBaseFeatures[i]->getKind() == SketchPlugin_Line::ID()) {
234 aStartAttr = SketchPlugin_Line::START_ID();
235 aEndAttr = SketchPlugin_Line::END_ID();
236 } else if (myBaseFeatures[i]->getKind() == SketchPlugin_Arc::ID()) {
237 aStartAttr = SketchPlugin_Arc::START_ID();
238 aEndAttr = SketchPlugin_Arc::END_ID();
239 } else { // Wrong argument.
240 setError("Error: One of the points has wrong coincide feature");
243 myFeatAttributes[2*i] = aStartAttr;
244 aStartEndPnt[2*i] = std::dynamic_pointer_cast<GeomDataAPI_Point2D>(
245 myBaseFeatures[i]->attribute(aStartAttr))->pnt();
246 myFeatAttributes[2*i+1] = aEndAttr;
247 aStartEndPnt[2*i+1] = std::dynamic_pointer_cast<GeomDataAPI_Point2D>(
248 myBaseFeatures[i]->attribute(aEndAttr))->pnt();
250 for (int aFeatInd = 0; aFeatInd < aNbFeatures; aFeatInd++) {
251 for (int j = 0; j < 2; j++) // loop on start-end of each feature
252 if (aStartEndPnt[aFeatInd * aNbFeatures + j]->distance(aFilletPnt2d) < 1.e-10) {
253 myIsNotInversed[aFeatInd] = (j==0);
258 std::shared_ptr<GeomAPI_Ax3> aSketchPlane = SketchPlugin_Sketch::plane(sketch());
259 calculateFilletCenter(myBaseFeatures, aRadius, aSketchPlane,
260 myCenterXY, myTangentXY1, myTangentXY2);
262 // Tangent directions of the features in coincident point.
263 std::shared_ptr<GeomAPI_Dir2d> aTangentDir[aNbFeatures];
264 for (int i = 0; i < aNbFeatures; i++) {
265 std::shared_ptr<GeomAPI_XY> aDir;
266 if (myBaseFeatures[i]->getKind() == SketchPlugin_Line::ID()) {
267 aDir = aStartEndPnt[2*i+1]->xy()->decreased(aStartEndPnt[2*i]->xy());
268 if (!myIsNotInversed[i])
269 aDir = aDir->multiplied(-1.0);
270 } else if (myBaseFeatures[i]->getKind() == SketchPlugin_Arc::ID()) {
271 std::shared_ptr<GeomAPI_Pnt2d> aCenterPoint =
272 std::dynamic_pointer_cast<GeomDataAPI_Point2D>(
273 myBaseFeatures[i]->attribute(SketchPlugin_Arc::CENTER_ID()))->pnt();
274 aDir = myIsNotInversed[i] ? aStartEndPnt[2*i]->xy() : aStartEndPnt[2*i+1]->xy();
275 aDir = aDir->decreased(aCenterPoint->xy());
277 double x = aDir->x();
278 double y = aDir->y();
281 if (myIsNotInversed[i] ==
282 std::dynamic_pointer_cast<SketchPlugin_Arc>(myBaseFeatures[i])->isReversed())
283 aDir = aDir->multiplied(-1.0);
285 aTangentDir[i] = std::shared_ptr<GeomAPI_Dir2d>(new GeomAPI_Dir2d(aDir));
288 // By default, the start point of fillet arc is connected to FeatureA,
289 // and the end point - to FeatureB. But when the angle between TangentDirA and
290 // TangentDirB greater 180 degree, the sequaence of features need to be reversed.
291 double cosBA = aTangentDir[0]->cross(aTangentDir[1]); // cos(B-A),
292 // where A and B - angles between corresponding tanget direction and the X axis
293 myIsReversed = cosBA > 0.0;
296 std::shared_ptr<GeomAPI_XY> aTmp = myTangentXY1;
297 myTangentXY1 = myTangentXY2;
303 FeaturePtr SketchPlugin_Fillet::createFilletArc()
305 // Calculate Fillet parameters if does not yet
306 if (!myBaseFeatures[0] || !myBaseFeatures[1])
307 calculateFilletParameters();
309 // Create arc feature.
310 FeaturePtr aFilletArc = sketch()->addFeature(SketchPlugin_Arc::ID());
312 // Set arc attributes.
313 bool aWasBlocked = aFilletArc->data()->blockSendAttributeUpdated(true);
314 std::dynamic_pointer_cast<GeomDataAPI_Point2D>(
315 aFilletArc->attribute(SketchPlugin_Arc::CENTER_ID()))->setValue(myCenterXY->x(),
317 std::shared_ptr<GeomDataAPI_Point2D> aStartPoint =
318 std::dynamic_pointer_cast<GeomDataAPI_Point2D>(
319 aFilletArc->attribute(SketchPlugin_Arc::START_ID()));
320 std::shared_ptr<GeomDataAPI_Point2D> aEndPoint =
321 std::dynamic_pointer_cast<GeomDataAPI_Point2D>(
322 aFilletArc->attribute(SketchPlugin_Arc::END_ID()));
323 if(aStartPoint->isInitialized() && aEndPoint->isInitialized()
324 && (aStartPoint->pnt()->xy()->distance(myTangentXY1) > tolerance
325 || aEndPoint->pnt()->xy()->distance(myTangentXY2) > tolerance)) {
326 std::dynamic_pointer_cast<SketchPlugin_Arc>(aFilletArc)->setReversed(false);
328 aStartPoint->setValue(myTangentXY1->x(), myTangentXY1->y());
329 aEndPoint->setValue(myTangentXY2->x(), myTangentXY2->y());
330 aFilletArc->data()->blockSendAttributeUpdated(aWasBlocked);
331 aFilletArc->execute();
336 FeaturePtr SketchPlugin_Fillet::createFilletApex(const GeomPnt2dPtr& theCoordinates)
338 FeaturePtr anApex = sketch()->addFeature(SketchPlugin_Point::ID());
339 AttributePoint2DPtr aCoord = std::dynamic_pointer_cast<GeomDataAPI_Point2D>(
340 anApex->attribute(SketchPlugin_Point::COORD_ID()));
341 aCoord->setValue(theCoordinates);
342 anApex->boolean(SketchPlugin_Point::AUXILIARY_ID())->setValue(true);
344 // additional coincidence constraints
345 static Events_ID anUpdateEvent = Events_Loop::eventByName(EVENT_OBJECT_UPDATED);
346 FeaturePtr aConstraint;
347 for (int i = 0; i < 2; i++) {
348 aConstraint = SketchPlugin_Tools::createConstraintAttrObject(sketch(),
349 SketchPlugin_ConstraintCoincidence::ID(),
351 myBaseFeatures[i]->lastResult());
352 aConstraint->execute();
353 ModelAPI_EventCreator::get()->sendUpdated(aConstraint, anUpdateEvent);
360 AttributePtr myPoints[2];
361 std::string myValueText;
362 double myValueDouble;
363 GeomPnt2dPtr myFlyoutPoint;
367 void SketchPlugin_Fillet::removeReferencesButKeepDistances(
368 std::set<FeaturePtr>& theFeaturesToRemove,
369 const AttributePoint2DPtr theFilletPoints[2])
371 FeaturePtr aFilletApex;
372 std::list<Length> aLengthToDistance;
374 std::set<FeaturePtr>::iterator aFeat = theFeaturesToRemove.begin();
375 while (aFeat != theFeaturesToRemove.end()) {
376 std::shared_ptr<SketchPlugin_ConstraintDistance> aDistance =
377 std::dynamic_pointer_cast<SketchPlugin_ConstraintDistance>(*aFeat);
380 aFilletApex = createFilletApex(theFilletPoints[0]->pnt());
381 // update attributes of distance constraints
382 bool isUpdated = false;
383 for (int attrInd = 0; attrInd < CONSTRAINT_ATTR_SIZE && !isUpdated; ++attrInd) {
384 AttributeRefAttrPtr aRefAttr =
385 aDistance->refattr(SketchPlugin_Constraint::ATTRIBUTE(attrInd));
386 if (aRefAttr && !aRefAttr->isObject() &&
387 (aRefAttr->attr() == theFilletPoints[0] || aRefAttr->attr() == theFilletPoints[1])) {
388 aRefAttr->setAttr(aFilletApex->attribute(SketchPlugin_Point::COORD_ID()));
392 // avoid distance from removing if it is updated
393 std::set<FeaturePtr>::iterator aKeepIt = aFeat++;
395 theFeaturesToRemove.erase(aKeepIt);
398 std::shared_ptr<SketchPlugin_ConstraintLength> aLength =
399 std::dynamic_pointer_cast<SketchPlugin_ConstraintLength>(*aFeat);
402 aFilletApex = createFilletApex(theFilletPoints[0]->pnt());
403 // remove Length, but create new distance constraint
404 AttributeRefAttrPtr aRefAttr =
405 aLength->refattr(SketchPlugin_Constraint::ENTITY_A());
406 FeaturePtr aLine = ModelAPI_Feature::feature(aRefAttr->object());
408 aLengthToDistance.push_back(Length());
409 Length& aNewLength = aLengthToDistance.back();
411 for (int i = 0; i < 2; ++i) {
412 AttributePtr anAttr = aLine->attribute(
413 i == 0 ? SketchPlugin_Line::START_ID() : SketchPlugin_Line::END_ID());
414 if (anAttr == theFilletPoints[0] || anAttr == theFilletPoints[1])
415 aNewLength.myPoints[i] = aFilletApex->attribute(SketchPlugin_Point::COORD_ID());
417 aNewLength.myPoints[i] = anAttr;
420 AttributeDoublePtr aValue = aLength->real(SketchPlugin_Constraint::VALUE());
421 aNewLength.myValueDouble = aValue->value();
422 aNewLength.myValueText = aValue->text();
423 // auxiliary attributes
424 AttributePoint2DPtr aFlyoutAttr = std::dynamic_pointer_cast<GeomDataAPI_Point2D>(
425 aLength->attribute(SketchPlugin_ConstraintLength::FLYOUT_VALUE_PNT()));
426 if (aFlyoutAttr && aFlyoutAttr->isInitialized())
427 aNewLength.myFlyoutPoint = SketchPlugin_Tools::flyoutPointCoordinates(aLength);
428 AttributeIntegerPtr aLocationAttr =
429 aLength->integer(SketchPlugin_ConstraintLength::LOCATION_TYPE_ID());
430 if (aLocationAttr && aLocationAttr->isInitialized())
431 aNewLength.myLocationType = aLocationAttr->value();
433 aNewLength.myLocationType = -1;
442 ModelAPI_Tools::removeFeaturesAndReferences(theFeaturesToRemove);
443 Events_Loop::loop()->flush(Events_Loop::eventByName(EVENT_OBJECT_DELETED));
445 // restore Length constraints as point-point distances
446 FeaturePtr aConstraint;
447 std::list<Length>::iterator anIt = aLengthToDistance.begin();
448 for (; anIt != aLengthToDistance.end(); ++anIt) {
449 aConstraint = SketchPlugin_Tools::createConstraintAttrAttr(sketch(),
450 SketchPlugin_ConstraintDistance::ID(), anIt->myPoints[0], anIt->myPoints[1]);
452 AttributeDoublePtr aValue = aConstraint->real(SketchPlugin_Constraint::VALUE());
453 if (anIt->myValueText.empty())
454 aValue->setValue(anIt->myValueDouble);
456 aValue->setText(anIt->myValueText);
457 // set flyout point if exists
458 if (anIt->myFlyoutPoint) {
459 AttributePoint2DPtr aFlyoutAttr = std::dynamic_pointer_cast<GeomDataAPI_Point2D>(
460 aConstraint->attribute(SketchPlugin_ConstraintDistance::FLYOUT_VALUE_PNT()));
461 aFlyoutAttr->setValue(anIt->myFlyoutPoint);
463 // set location type if initialized
464 if (anIt->myLocationType >= 0) {
465 AttributeIntegerPtr aLocationType =
466 aConstraint->integer(SketchPlugin_ConstraintDistance::LOCATION_TYPE_ID());
467 aLocationType->setValue(anIt->myLocationType);
469 aConstraint->execute();
470 ModelAPI_EventCreator::get()->sendUpdated(aConstraint,
471 Events_Loop::eventByName(EVENT_OBJECT_UPDATED));
475 // ========= Auxiliary functions =================
476 void recalculateAttributes(FeaturePtr theNewArc, const std::string& theNewArcAttribute,
477 FeaturePtr theFeature, const std::string& theFeatureAttribute)
479 std::shared_ptr<GeomAPI_Pnt2d> anArcPoint = std::dynamic_pointer_cast<GeomDataAPI_Point2D>(
480 theNewArc->attribute(theNewArcAttribute))->pnt();
481 std::dynamic_pointer_cast<GeomDataAPI_Point2D>(
482 theFeature->attribute(theFeatureAttribute))->setValue(anArcPoint->x(), anArcPoint->y());
485 static std::shared_ptr<GeomAPI_Pnt2d> toPoint(const AttributePtr& theAttribute)
487 std::shared_ptr<GeomAPI_Pnt2d> aPoint;
488 AttributePoint2DPtr aPointAttr = std::dynamic_pointer_cast<GeomDataAPI_Point2D>(theAttribute);
490 aPoint = aPointAttr->pnt();
494 static std::shared_ptr<GeomAPI_Lin2d> toLine(const FeaturePtr& theFeature)
496 std::shared_ptr<GeomAPI_Lin2d> aLine;
497 if (theFeature->getKind() == SketchPlugin_Line::ID()) {
498 std::shared_ptr<GeomAPI_Pnt2d> aStart =
499 toPoint( theFeature->attribute(SketchPlugin_Line::START_ID()) );
500 std::shared_ptr<GeomAPI_Pnt2d> aEnd =
501 toPoint( theFeature->attribute(SketchPlugin_Line::END_ID()) );
502 aLine = std::shared_ptr<GeomAPI_Lin2d>(new GeomAPI_Lin2d(aStart, aEnd));
507 static std::shared_ptr<GeomAPI_Circ2d> toCircle(const FeaturePtr& theFeature)
509 std::shared_ptr<GeomAPI_Circ2d> aCircle;
510 if (theFeature->getKind() == SketchPlugin_Arc::ID()) {
511 std::shared_ptr<GeomAPI_Pnt2d> aCenter =
512 toPoint( theFeature->attribute(SketchPlugin_Arc::CENTER_ID()) );
513 std::shared_ptr<GeomAPI_Pnt2d> aStart =
514 toPoint( theFeature->attribute(SketchPlugin_Arc::START_ID()) );
515 aCircle = std::shared_ptr<GeomAPI_Circ2d>(new GeomAPI_Circ2d(aCenter, aStart));
521 void calculateFilletCenter(FeaturePtr theFilletFeatures[2],
522 double theFilletRadius,
523 const std::shared_ptr<GeomAPI_Ax3>& theSketchPlane,
524 std::shared_ptr<GeomAPI_XY>& theCenter,
525 std::shared_ptr<GeomAPI_XY>& theTangentA,
526 std::shared_ptr<GeomAPI_XY>& theTangentB)
528 GeomShapePtr aShapeA = theFilletFeatures[0]->lastResult()->shape();
529 GeomShapePtr aShapeB = theFilletFeatures[1]->lastResult()->shape();
531 GeomAlgoAPI_Circ2dBuilder aCircBuilder(theSketchPlane);
532 aCircBuilder.addTangentCurve(aShapeA);
533 aCircBuilder.addTangentCurve(aShapeB);
534 aCircBuilder.setRadius(theFilletRadius);
536 std::shared_ptr<GeomAPI_Circ2d> aFilletCircle = aCircBuilder.circle();
540 theCenter = aFilletCircle->center()->xy();
542 std::shared_ptr<GeomAPI_Pnt2d> aTgPoints[2];
543 for (int i = 0; i < 2; ++i) {
544 std::shared_ptr<GeomAPI_Circ2d> aCircle = toCircle(theFilletFeatures[i]);
546 aTgPoints[i] = aCircle->project(aFilletCircle->center());
548 std::shared_ptr<GeomAPI_Lin2d> aLine = toLine(theFilletFeatures[i]);
550 aTgPoints[i] = aLine->project(aFilletCircle->center());
553 theTangentA = aTgPoints[0]->xy();
554 theTangentB = aTgPoints[1]->xy();
557 double calculateFilletRadius(FeaturePtr theFilletFeatures[2])
559 double aLengths[2] = { 0, 0 };
560 for (int i = 0; i < 2; ++i) {
561 GeomShapePtr aShape = theFilletFeatures[i]->lastResult()->shape();
562 std::shared_ptr<GeomAPI_Edge> anEdge = std::dynamic_pointer_cast<GeomAPI_Edge>(aShape);
564 aLengths[i] = anEdge->length();
566 return std::min(aLengths[0], aLengths[1]) / 6.0;
569 std::set<FeaturePtr> findFeaturesToRemove(const FeaturePtr theFeature,
570 const AttributePtr theAttribute) {
571 std::set<FeaturePtr> aFeaturesToBeRemoved;
572 std::set<AttributePtr> aRefs = theFeature->data()->refsToMe();
573 std::list<ResultPtr> aResults = theFeature->results();
574 for(std::list<ResultPtr>::const_iterator aResultsIt = aResults.cbegin();
575 aResultsIt != aResults.cend();
577 ResultPtr aResult = *aResultsIt;
578 std::set<AttributePtr> aResultRefs = aResult->data()->refsToMe();
579 aRefs.insert(aResultRefs.begin(), aResultRefs.end());
581 for(std::set<AttributePtr>::const_iterator anIt = aRefs.cbegin();
582 anIt != aRefs.cend();
584 std::shared_ptr<ModelAPI_Attribute> anAttr = (*anIt);
585 FeaturePtr aFeature = std::dynamic_pointer_cast<ModelAPI_Feature>(anAttr->owner());
586 if(aFeature->getKind() == SketchPlugin_Fillet::ID()) {
589 if(aFeature->getKind() == SketchPlugin_ConstraintLength::ID()
590 || aFeature->getKind() == SketchPlugin_ConstraintEqual::ID()
591 || aFeature->getKind() == SketchPlugin_ConstraintMiddle::ID()) {
592 aFeaturesToBeRemoved.insert(aFeature);
594 std::list<AttributePtr> anAttrs =
595 aFeature->data()->attributes(ModelAPI_AttributeRefAttr::typeId());
596 for(std::list<AttributePtr>::const_iterator aRefAttrsIt = anAttrs.cbegin();
597 aRefAttrsIt != anAttrs.cend();
599 AttributeRefAttrPtr anAttrRefAttr =
600 std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(*aRefAttrsIt);
601 if(anAttrRefAttr.get() && anAttrRefAttr->attr() == theAttribute) {
602 aFeaturesToBeRemoved.insert(aFeature);
607 return aFeaturesToBeRemoved;