1 // Copyright (C) 2014-20xx CEA/DEN, EDF R&D -->
3 // File: SketchPlugin_ConstraintFillet.cpp
4 // Created: 19 Mar 2015
5 // Author: Artem ZHIDKOV
7 #include "SketchPlugin_ConstraintFillet.h"
9 #include <GeomAPI_Dir2d.h>
10 #include <GeomAPI_Pnt2d.h>
11 #include <GeomAPI_XY.h>
12 #include <GeomDataAPI_Point2D.h>
13 #include <ModelAPI_AttributeDouble.h>
14 #include <ModelAPI_AttributeRefAttr.h>
15 #include <ModelAPI_AttributeRefList.h>
16 #include <ModelAPI_Data.h>
17 #include <ModelAPI_Events.h>
18 #include <ModelAPI_ResultConstruction.h>
19 #include <ModelAPI_Session.h>
20 #include <ModelAPI_Validator.h>
22 #include <SketchPlugin_Arc.h>
23 #include <SketchPlugin_Line.h>
24 #include <SketchPlugin_Sketch.h>
25 #include <SketchPlugin_ConstraintCoincidence.h>
26 #include <SketchPlugin_ConstraintTangent.h>
27 #include <SketchPlugin_ConstraintRadius.h>
28 #include <SketchPlugin_Tools.h>
30 #include <SketcherPrs_Factory.h>
31 #include <SketcherPrs_Tools.h>
33 #include <Config_PropManager.h>
34 #include <Events_Loop.h>
38 static const std::string PREVIOUS_VALUE("FilletPreviousRadius");
40 /// \brief Attract specified point on theNewArc to the attribute of theFeature
41 static void recalculateAttributes(FeaturePtr theNewArc, const std::string& theNewArcAttribute,
42 FeaturePtr theFeature, const std::string& theFeatureAttribute);
44 /// \brief Calculates center of fillet arc and coordinates of tangency points
45 static void calculateFilletCenter(FeaturePtr theFeatureA, FeaturePtr theFeatureB,
46 double theRadius, bool theNotInversed[2],
47 std::shared_ptr<GeomAPI_XY>& theCenter,
48 std::shared_ptr<GeomAPI_XY>& theTangentA,
49 std::shared_ptr<GeomAPI_XY>& theTangentB);
51 SketchPlugin_ConstraintFillet::SketchPlugin_ConstraintFillet()
55 void SketchPlugin_ConstraintFillet::initAttributes()
57 data()->addAttribute(SketchPlugin_Constraint::VALUE(), ModelAPI_AttributeDouble::typeId());
58 data()->addAttribute(SketchPlugin_Constraint::ENTITY_A(), ModelAPI_AttributeRefAttr::typeId());
59 data()->addAttribute(SketchPlugin_Constraint::ENTITY_B(), ModelAPI_AttributeRefList::typeId());
60 data()->addAttribute(PREVIOUS_VALUE, ModelAPI_AttributeDouble::typeId());
61 // initialize attribute not applicable for user
62 ModelAPI_Session::get()->validators()->registerNotObligatory(getKind(), SketchPlugin_Constraint::ENTITY_B());
63 data()->attribute(PREVIOUS_VALUE)->setInitialized();
64 std::dynamic_pointer_cast<ModelAPI_AttributeDouble>(data()->attribute(PREVIOUS_VALUE))->setValue(0.0);
67 void SketchPlugin_ConstraintFillet::execute()
69 // the viewer update should be blocked in order to avoid the temporaty fillet sub-features visualization
70 // before they are processed by the solver
71 //std::shared_ptr<Events_Message> aMsg = std::shared_ptr<Events_Message>(
72 // new Events_Message(Events_Loop::eventByName(EVENT_UPDATE_VIEWER_BLOCKED)));
73 //Events_Loop::loop()->send(aMsg);
75 std::shared_ptr<ModelAPI_Data> aData = data();
76 ResultConstructionPtr aRC;
77 // Check the base objects are initialized
78 double aFilletRadius = std::dynamic_pointer_cast<ModelAPI_AttributeDouble>(
79 aData->attribute(SketchPlugin_Constraint::VALUE()))->value();
80 AttributeRefAttrPtr aBaseA = std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(
81 aData->attribute(SketchPlugin_Constraint::ENTITY_A()));
82 if (!aBaseA->isInitialized() || aBaseA->isObject()) {
83 setError("Bad vertex selected");
87 // Check the fillet shapes is not initialized yet
88 AttributeRefListPtr aRefListOfFillet = std::dynamic_pointer_cast<ModelAPI_AttributeRefList>(
89 aData->attribute(SketchPlugin_Constraint::ENTITY_B()));
90 bool needNewObjects = aRefListOfFillet->size() == 0;
92 // Obtain base features
93 AttributePtr anAttrBase = aBaseA->attr();
94 const std::set<AttributePtr>& aRefsList = anAttrBase->owner()->data()->refsToMe();
95 std::set<AttributePtr>::const_iterator aIt;
96 FeaturePtr aCoincident;
97 for (aIt = aRefsList.cbegin(); aIt != aRefsList.cend(); ++aIt) {
98 std::shared_ptr<ModelAPI_Attribute> aAttr = (*aIt);
99 FeaturePtr aConstrFeature = std::dynamic_pointer_cast<ModelAPI_Feature>(aAttr->owner());
100 if (aConstrFeature->getKind() == SketchPlugin_ConstraintCoincidence::ID()) {
101 AttributeRefAttrPtr anAttrRefA = std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(
102 aConstrFeature->attribute(SketchPlugin_ConstraintCoincidence::ENTITY_A()));
103 AttributeRefAttrPtr anAttrRefB = std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(
104 aConstrFeature->attribute(SketchPlugin_ConstraintCoincidence::ENTITY_B()));
105 if(anAttrRefA.get() && !anAttrRefA->isObject()) {
106 AttributePtr anAttrA = anAttrRefA->attr();
107 if(anAttrBase == anAttrA) {
108 aCoincident = aConstrFeature;
112 if(anAttrRefA.get() && !anAttrRefB->isObject()) {
113 AttributePtr anAttrB = anAttrRefB->attr();
114 if(anAttrBase == anAttrB) {
115 aCoincident = aConstrFeature;
122 if(!aCoincident.get()) {
123 setError("No coincident edges at selected vertex");
127 std::set<FeaturePtr> aCoinsideLines;
128 SketchPlugin_Tools::findCoincidences(aCoincident,
129 SketchPlugin_ConstraintCoincidence::ENTITY_A(),
131 SketchPlugin_Tools::findCoincidences(aCoincident,
132 SketchPlugin_ConstraintCoincidence::ENTITY_B(),
134 if(aCoinsideLines.size() != 2) {
135 setError("At selected vertex should be two coincident lines");
139 std::set<FeaturePtr>::iterator aLinesIt = aCoinsideLines.begin();
140 FeaturePtr anOldFeatureA = *aLinesIt;
142 setError("One of the edges is empty");
146 FeaturePtr anOldFeatureB = *aLinesIt;
148 setError("One of the edges is empty");
152 FeaturePtr aNewFeatureA, aNewFeatureB, aNewArc;
153 if (needNewObjects) {
154 // Create list of objects composing a fillet
156 aNewFeatureA = SketchPlugin_Sketch::addUniqueNamedCopiedFeature(anOldFeatureB, sketch());
158 aNewFeatureB = SketchPlugin_Sketch::addUniqueNamedCopiedFeature(anOldFeatureB, sketch());
159 // create filleting arc (it will be attached to the list later)
160 aNewArc = sketch()->addFeature(SketchPlugin_Arc::ID());
162 // Obtain features from the list
163 std::list<ObjectPtr> aNewFeatList = aRefListOfFillet->list();
164 std::list<ObjectPtr>::iterator aFeatIt = aNewFeatList.begin();
165 aNewFeatureA = ModelAPI_Feature::feature(*aFeatIt++);
166 aNewFeatureB = ModelAPI_Feature::feature(*aFeatIt++);
167 aNewArc = ModelAPI_Feature::feature(*aFeatIt);
170 // Calculate arc attributes
171 static const int aNbFeatures = 2;
172 FeaturePtr aFeature[aNbFeatures] = {anOldFeatureA, anOldFeatureB};
173 FeaturePtr aNewFeature[aNbFeatures] = {aNewFeatureA, aNewFeatureB};
174 std::shared_ptr<GeomAPI_Dir2d> aTangentDir[aNbFeatures]; // tangent directions of the features in coincident point
175 bool isStart[aNbFeatures]; // indicates which point the features share
176 std::shared_ptr<GeomAPI_Pnt2d> aStartEndPnt[aNbFeatures * 2]; // first pair of points relate to first feature, second pair - to second
177 std::string aFeatAttributes[aNbFeatures * 2]; // attributes of features
178 for (int i = 0; i < aNbFeatures; i++) {
179 std::string aStartAttr, aEndAttr;
180 if (aNewFeature[i]->getKind() == SketchPlugin_Line::ID()) {
181 aStartAttr = SketchPlugin_Line::START_ID();
182 aEndAttr = SketchPlugin_Line::END_ID();
183 } else if (aNewFeature[i]->getKind() == SketchPlugin_Arc::ID()) {
184 aStartAttr = SketchPlugin_Arc::START_ID();
185 aEndAttr = SketchPlugin_Arc::END_ID();
186 } else { // wrong argument
187 aRefListOfFillet->remove(aNewFeatureA);
188 aRefListOfFillet->remove(aNewFeatureB);
189 aRefListOfFillet->remove(aNewArc);
192 aFeatAttributes[2*i] = aStartAttr;
193 aStartEndPnt[2*i] = std::dynamic_pointer_cast<GeomDataAPI_Point2D>(
194 aFeature[i]->attribute(aStartAttr))->pnt();
195 aFeatAttributes[2*i+1] = aEndAttr;
196 aStartEndPnt[2*i+1] = std::dynamic_pointer_cast<GeomDataAPI_Point2D>(
197 aFeature[i]->attribute(aEndAttr))->pnt();
199 for (int i = 0; i < aNbFeatures; i++) {
201 for (; j < 2 * aNbFeatures; j++)
202 if (aStartEndPnt[i]->distance(aStartEndPnt[j]) < 1.e-10) {
204 isStart[1] = j==aNbFeatures;
207 if (j < 2 * aNbFeatures)
210 // tangent directions of the features
211 for (int i = 0; i < aNbFeatures; i++) {
212 std::shared_ptr<GeomAPI_XY> aDir;
213 if (aNewFeature[i]->getKind() == SketchPlugin_Line::ID()) {
214 aDir = aStartEndPnt[2*i+1]->xy()->decreased(aStartEndPnt[2*i]->xy());
216 aDir = aDir->multiplied(-1.0);
217 } else if (aNewFeature[i]->getKind() == SketchPlugin_Arc::ID()) {
218 std::shared_ptr<GeomAPI_Pnt2d> aCenterPoint =
219 std::dynamic_pointer_cast<GeomDataAPI_Point2D>(
220 aNewFeature[i]->attribute(SketchPlugin_Arc::CENTER_ID()))->pnt();
221 aDir = isStart[i] ? aStartEndPnt[2*i]->xy() : aStartEndPnt[2*i+1]->xy();
222 aDir = aDir->decreased(aCenterPoint->xy());
224 double x = aDir->x();
225 double y = aDir->y();
229 aDir = aDir->multiplied(-1.0);
231 aTangentDir[i] = std::shared_ptr<GeomAPI_Dir2d>(new GeomAPI_Dir2d(aDir));
234 // Wait all constraints being created, then send update events
235 static Events_ID anUpdateEvent = Events_Loop::eventByName(EVENT_OBJECT_UPDATED);
236 bool isUpdateFlushed = Events_Loop::loop()->isFlushed(anUpdateEvent);
238 Events_Loop::loop()->setFlushed(anUpdateEvent, false);
240 // By default, the start point of fillet arc is connected to FeatureA,
241 // and the end point - to FeatureB. But when the angle between TangentDirA and
242 // TangentDirB greater 180 degree, the sequaence of features need to be reversed.
243 double cosBA = aTangentDir[0]->cross(aTangentDir[1]); // cos(B-A), where A and B - angles between corresponding tanget direction and the X axis
244 bool isReversed = cosBA > 0.0;
246 // Calculate fillet arc parameters
247 std::shared_ptr<GeomAPI_XY> aCenter, aTangentPntA, aTangentPntB;
248 calculateFilletCenter(anOldFeatureA, anOldFeatureB, aFilletRadius, isStart, aCenter, aTangentPntA, aTangentPntB);
250 std::dynamic_pointer_cast<GeomDataAPI_Point2D>(
251 aNewFeatureA->attribute(aFeatAttributes[isStart[0] ? 0 : 1]))->setValue(
252 aTangentPntA->x(), aTangentPntA->y());
253 aNewFeatureA->execute();
254 std::dynamic_pointer_cast<GeomDataAPI_Point2D>(
255 aNewFeatureB->attribute(aFeatAttributes[2 + (isStart[1] ? 0 : 1)]))->setValue(
256 aTangentPntB->x(), aTangentPntB->y());
257 aNewFeatureB->execute();
259 std::dynamic_pointer_cast<GeomDataAPI_Point2D>(
260 aNewArc->attribute(SketchPlugin_Arc::CENTER_ID()))->setValue(
261 aCenter->x(), aCenter->y());
263 std::shared_ptr<GeomAPI_XY> aTmp = aTangentPntA;
264 aTangentPntA = aTangentPntB;
267 std::dynamic_pointer_cast<GeomDataAPI_Point2D>(
268 aNewArc->attribute(SketchPlugin_Arc::START_ID()))->setValue(aTangentPntA->x(), aTangentPntA->y());
269 std::dynamic_pointer_cast<GeomDataAPI_Point2D>(
270 aNewArc->attribute(SketchPlugin_Arc::END_ID()))->setValue(aTangentPntB->x(), aTangentPntB->y());
273 if (needNewObjects) {
274 // attach new arc to the list
275 aRefListOfFillet->append(aNewFeatureA->lastResult());
276 aRefListOfFillet->append(aNewFeatureB->lastResult());
277 aRefListOfFillet->append(aNewArc->lastResult());
279 myProducedFeatures.push_back(aNewFeatureA);
280 myProducedFeatures.push_back(aNewFeatureB);
281 myProducedFeatures.push_back(aNewArc);
283 // Create list of additional constraints:
284 // 1. Coincidence of boundary points of features (copied lines/arcs) and fillet arc
286 FeaturePtr aConstraint = sketch()->addFeature(SketchPlugin_ConstraintCoincidence::ID());
287 AttributeRefAttrPtr aRefAttr = std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(
288 aConstraint->attribute(SketchPlugin_Constraint::ENTITY_A()));
289 aRefAttr->setAttr(aNewArc->attribute(SketchPlugin_Arc::START_ID()));
290 aRefAttr = std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(
291 aConstraint->attribute(SketchPlugin_Constraint::ENTITY_B()));
292 int aFeatInd = isReversed ? 1 : 0;
293 int anAttrInd = (isReversed ? 2 : 0) + (isStart[isReversed ? 1 : 0] ? 0 : 1);
294 aRefAttr->setAttr(aNewFeature[aFeatInd]->attribute(aFeatAttributes[anAttrInd]));
295 recalculateAttributes(aNewArc, SketchPlugin_Arc::START_ID(), aNewFeature[aFeatInd], aFeatAttributes[anAttrInd]);
296 aConstraint->execute();
297 myProducedFeatures.push_back(aConstraint);
298 ModelAPI_EventCreator::get()->sendUpdated(aConstraint, anUpdateEvent);
300 aConstraint = sketch()->addFeature(SketchPlugin_ConstraintCoincidence::ID());
301 aRefAttr = std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(
302 aConstraint->attribute(SketchPlugin_Constraint::ENTITY_A()));
303 aRefAttr->setAttr(aNewArc->attribute(SketchPlugin_Arc::END_ID()));
304 aRefAttr = std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(
305 aConstraint->attribute(SketchPlugin_Constraint::ENTITY_B()));
306 aFeatInd = isReversed ? 0 : 1;
307 anAttrInd = (isReversed ? 0 : 2) + (isStart[isReversed ? 0 : 1] ? 0 : 1);
308 aRefAttr->setAttr(aNewFeature[aFeatInd]->attribute(aFeatAttributes[anAttrInd]));
309 recalculateAttributes(aNewArc, SketchPlugin_Arc::END_ID(), aNewFeature[aFeatInd], aFeatAttributes[anAttrInd]);
310 aConstraint->execute();
311 myProducedFeatures.push_back(aConstraint);
312 ModelAPI_EventCreator::get()->sendUpdated(aConstraint, anUpdateEvent);
313 // 2. Fillet arc radius
314 //aConstraint = sketch()->addFeature(SketchPlugin_ConstraintRadius::ID());
315 //aRefAttr = std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(
316 // aConstraint->attribute(SketchPlugin_Constraint::ENTITY_A()));
317 //aRefAttr->setObject(aNewArc->lastResult());
318 //std::dynamic_pointer_cast<ModelAPI_AttributeDouble>(
319 // aConstraint->attribute(SketchPlugin_Constraint::VALUE()))->setValue(aFilletRadius);
320 //std::dynamic_pointer_cast<GeomDataAPI_Point2D>(
321 // aConstraint->attribute(SketchPlugin_Constraint::FLYOUT_VALUE_PNT()))->setValue(
322 // isStart[0] ? aStartEndPnt[0] : aStartEndPnt[1]);
323 //aConstraint->execute();
324 //myProducedFeatures.push_back(aConstraint);
325 //ModelAPI_EventCreator::get()->sendUpdated(aConstraint, anUpdateEvent);
326 // 3. Tangency of fillet arc and features
327 for (int i = 0; i < aNbFeatures; i++) {
328 aConstraint = sketch()->addFeature(SketchPlugin_ConstraintTangent::ID());
329 aRefAttr = std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(
330 aConstraint->attribute(SketchPlugin_Constraint::ENTITY_A()));
331 aRefAttr->setObject(aNewArc->lastResult());
332 aRefAttr = std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(
333 aConstraint->attribute(SketchPlugin_Constraint::ENTITY_B()));
334 bool isArc = aNewFeature[i]->getKind() == SketchPlugin_Arc::ID();
335 aRefAttr->setObject(isArc ? aNewFeature[i]->lastResult() : aNewFeature[i]->firstResult());
336 aConstraint->execute();
337 myProducedFeatures.push_back(aConstraint);
338 ModelAPI_EventCreator::get()->sendUpdated(aConstraint, anUpdateEvent);
340 // 4. Coincidence of free boundaries of base and copied features
341 for (int i = 0; i < aNbFeatures; i++) {
342 anAttrInd = 2*i + (isStart[i] ? 1 : 0);
343 aConstraint = sketch()->addFeature(SketchPlugin_ConstraintCoincidence::ID());
344 aRefAttr = std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(
345 aConstraint->attribute(SketchPlugin_Constraint::ENTITY_A()));
346 aRefAttr->setAttr(aFeature[i]->attribute(aFeatAttributes[anAttrInd]));
347 aRefAttr = std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(
348 aConstraint->attribute(SketchPlugin_Constraint::ENTITY_B()));
349 aRefAttr->setAttr(aNewFeature[i]->attribute(aFeatAttributes[anAttrInd]));
350 myProducedFeatures.push_back(aConstraint);
352 // 5. Tangent points should be placed on the base features
353 for (int i = 0; i < aNbFeatures; i++) {
354 anAttrInd = 2*i + (isStart[i] ? 0 : 1);
355 aConstraint = sketch()->addFeature(SketchPlugin_ConstraintCoincidence::ID());
356 aRefAttr = std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(
357 aConstraint->attribute(SketchPlugin_Constraint::ENTITY_A()));
358 aRefAttr->setAttr(aNewFeature[i]->attribute(aFeatAttributes[anAttrInd]));
359 aRefAttr = std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(
360 aConstraint->attribute(SketchPlugin_Constraint::ENTITY_B()));
361 aRefAttr->setObject(aFeature[i]->lastResult());
362 myProducedFeatures.push_back(aConstraint);
364 // make base features auxiliary
365 anOldFeatureA->boolean(SketchPlugin_SketchEntity::AUXILIARY_ID())->setValue(true);
366 anOldFeatureB->boolean(SketchPlugin_SketchEntity::AUXILIARY_ID())->setValue(true);
367 myBaseObjects.clear();
368 myBaseObjects.push_back(anOldFeatureA);
369 myBaseObjects.push_back(anOldFeatureB);
370 // exchange the naming IDs of newly created and old line that become auxiliary
371 sketch()->exchangeIDs(anOldFeatureA, aNewFeatureA);
372 sketch()->exchangeIDs(anOldFeatureB, aNewFeatureB);
374 // Update radius value
375 int aNbSubs = sketch()->numberOfSubs();
376 FeaturePtr aSubFeature;
377 for (int aSub = 0; aSub < aNbSubs; aSub++) {
378 aSubFeature = sketch()->subFeature(aSub);
379 if (aSubFeature->getKind() != SketchPlugin_ConstraintRadius::ID())
381 AttributeRefAttrPtr aRefAttr = std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(
382 aSubFeature->attribute(SketchPlugin_Constraint::ENTITY_A()));
383 if (!aRefAttr || !aRefAttr->isObject())
385 FeaturePtr aFeature = ModelAPI_Feature::feature(aRefAttr->object());
386 if (aFeature == aNewArc) {
387 AttributeDoublePtr aRadius = std::dynamic_pointer_cast<ModelAPI_AttributeDouble>(
388 aSubFeature->attribute(SketchPlugin_Constraint::VALUE()));
389 aRadius->setValue(aFilletRadius);
395 // send events to update the sub-features by the solver
397 Events_Loop::loop()->setFlushed(anUpdateEvent, true);
399 // the viewer update should be unblocked in order after the fillet features
400 // are processed by the solver
401 //aMsg = std::shared_ptr<Events_Message>(
402 // new Events_Message(Events_Loop::eventByName(EVENT_UPDATE_VIEWER_UNBLOCKED)));
403 //Events_Loop::loop()->send(aMsg);
406 void SketchPlugin_ConstraintFillet::attributeChanged(const std::string& theID)
408 if (theID == SketchPlugin_Constraint::ENTITY_A()) {
409 // clear the list of fillet entities
410 AttributeRefListPtr aRefListOfFillet = std::dynamic_pointer_cast<ModelAPI_AttributeRefList>(
411 data()->attribute(SketchPlugin_Constraint::ENTITY_B()));
412 aRefListOfFillet->clear();
414 // remove all produced objects and constraints
415 DocumentPtr aDoc = sketch()->document();
416 std::list<FeaturePtr>::iterator aCIt = myProducedFeatures.begin();
417 for (; aCIt != myProducedFeatures.end(); ++aCIt)
418 aDoc->removeFeature(*aCIt);
419 myProducedFeatures.clear();
421 // clear auxiliary flag on initial objects
422 for (aCIt = myBaseObjects.begin(); aCIt != myBaseObjects.end(); ++aCIt)
423 (*aCIt)->boolean(SketchPlugin_SketchEntity::AUXILIARY_ID())->setValue(false);
424 myBaseObjects.clear();
428 AISObjectPtr SketchPlugin_ConstraintFillet::getAISObject(AISObjectPtr thePrevious)
433 AISObjectPtr anAIS = thePrevious;
434 /// TODO: Equal constraint presentation should be put here
438 bool SketchPlugin_ConstraintFillet::isMacro() const
444 // ========= Auxiliary functions =================
445 void recalculateAttributes(FeaturePtr theNewArc, const std::string& theNewArcAttribute,
446 FeaturePtr theFeature, const std::string& theFeatureAttribute)
448 std::shared_ptr<GeomAPI_Pnt2d> anArcPoint = std::dynamic_pointer_cast<GeomDataAPI_Point2D>(
449 theNewArc->attribute(theNewArcAttribute))->pnt();
450 std::dynamic_pointer_cast<GeomDataAPI_Point2D>(
451 theFeature->attribute(theFeatureAttribute))->setValue(anArcPoint->x(), anArcPoint->y());
454 /// \brief Find intersections of lines shifted along normal direction
455 void possibleFilletCenterLineLine(
456 std::shared_ptr<GeomAPI_XY> thePointA, std::shared_ptr<GeomAPI_Dir2d> theDirA,
457 std::shared_ptr<GeomAPI_XY> thePointB, std::shared_ptr<GeomAPI_Dir2d> theDirB,
458 double theRadius, std::list< std::shared_ptr<GeomAPI_XY> >& theCenters)
460 std::shared_ptr<GeomAPI_Dir2d> aDirAT(new GeomAPI_Dir2d(-theDirA->y(), theDirA->x()));
461 std::shared_ptr<GeomAPI_Dir2d> aDirBT(new GeomAPI_Dir2d(-theDirB->y(), theDirB->x()));
462 std::shared_ptr<GeomAPI_XY> aPntA, aPntB;
463 double aDet = theDirA->cross(theDirB);
464 for (double aStepA = -1.0; aStepA <= 1.0; aStepA += 2.0) {
465 aPntA = thePointA->added(aDirAT->xy()->multiplied(aStepA * theRadius));
466 for (double aStepB = -1.0; aStepB <= 1.0; aStepB += 2.0) {
467 aPntB = thePointB->added(aDirBT->xy()->multiplied(aStepB * theRadius));
468 double aVX = aDirAT->xy()->dot(aPntA);
469 double aVY = aDirBT->xy()->dot(aPntB);
470 std::shared_ptr<GeomAPI_XY> aPoint(new GeomAPI_XY(
471 (theDirB->x() * aVX - theDirA->x() * aVY) / aDet,
472 (theDirB->y() * aVX - theDirA->y() * aVY) / aDet));
473 theCenters.push_back(aPoint);
478 /// \brief Find intersections of line shifted along normal direction in both sides
479 /// and a circle with extended radius
480 void possibleFilletCenterLineArc(
481 std::shared_ptr<GeomAPI_XY> theStartLine, std::shared_ptr<GeomAPI_Dir2d> theDirLine,
482 std::shared_ptr<GeomAPI_XY> theCenterArc, double theRadiusArc,
483 double theRadius, std::list< std::shared_ptr<GeomAPI_XY> >& theCenters)
485 std::shared_ptr<GeomAPI_Dir2d> aDirT(new GeomAPI_Dir2d(-theDirLine->y(), theDirLine->x()));
486 std::shared_ptr<GeomAPI_XY> aPnt;
487 double aDirNorm2 = theDirLine->dot(theDirLine);
489 double aDirX = theDirLine->x();
490 double aDirX2 = theDirLine->x() * theDirLine->x();
491 double aDirY2 = theDirLine->y() * theDirLine->y();
492 double aDirXY = theDirLine->x() * theDirLine->y();
493 for (double aStepA = -1.0; aStepA <= 1.0; aStepA += 2.0) {
494 aPnt = theStartLine->added(aDirT->xy()->multiplied(aStepA * theRadius));
495 double aCoeff = aDirT->xy()->dot(aPnt->decreased(theCenterArc));
496 double aCoeff2 = aCoeff * aCoeff;
497 for (double aStepB = -1.0; aStepB <= 1.0; aStepB += 2.0) {
498 aRad = theRadiusArc + aStepB * theRadius;
499 double aD = aRad * aRad * aDirNorm2 - aCoeff2;
502 double aDs = sqrt(aD);
503 double x1 = theCenterArc->x() + (aCoeff * aDirT->x() - aDirT->y() * aDs) / aDirNorm2;
504 double x2 = theCenterArc->x() + (aCoeff * aDirT->x() + aDirT->y() * aDs) / aDirNorm2;
505 double y1 = (aDirX2 * aPnt->y() + aDirY2 * theCenterArc->y() -
506 aDirXY * (aPnt->x() - theCenterArc->x()) - theDirLine->y() * aDs) / aDirNorm2;
507 double y2 = (aDirX2 * aPnt->y() + aDirY2 * theCenterArc->y() -
508 aDirXY * (aPnt->x() - theCenterArc->x()) + theDirLine->y() * aDs) / aDirNorm2;
510 std::shared_ptr<GeomAPI_XY> aPoint1(new GeomAPI_XY(x1, y1));
511 theCenters.push_back(aPoint1);
512 std::shared_ptr<GeomAPI_XY> aPoint2(new GeomAPI_XY(x2, y2));
513 theCenters.push_back(aPoint2);
518 /// \brief Find intersections of two circles with extended radii
519 void possibleFilletCenterArcArc(
520 std::shared_ptr<GeomAPI_XY> theCenterA, double theRadiusA,
521 std::shared_ptr<GeomAPI_XY> theCenterB, double theRadiusB,
522 double theRadius, std::list< std::shared_ptr<GeomAPI_XY> >& theCenters)
524 std::shared_ptr<GeomAPI_XY> aCenterDir = theCenterB->decreased(theCenterA);
525 double aCenterDist2 = aCenterDir->dot(aCenterDir);
526 double aCenterDist = sqrt(aCenterDist2);
529 for (double aStepA = -1.0; aStepA <= 1.0; aStepA += 2.0) {
530 aRadA = theRadiusA + aStepA * theRadius;
531 for (double aStepB = -1.0; aStepB <= 1.0; aStepB += 2.0) {
532 aRadB = theRadiusB + aStepB * theRadius;
533 if (aRadA + aRadB < aCenterDist || fabs(aRadA - aRadB) > aCenterDist)
534 continue; // there is no intersections
536 double aMedDist = (aRadA * aRadA - aRadB * aRadB + aCenterDist2) / (2.0 * aCenterDist);
537 double aHeight = sqrt(aRadA * aRadA - aMedDist * aMedDist);
539 double x1 = theCenterA->x() + (aMedDist * aCenterDir->x() + aCenterDir->y() * aHeight) / aCenterDist;
540 double y1 = theCenterA->y() + (aMedDist * aCenterDir->y() - aCenterDir->x() * aHeight) / aCenterDist;
542 double x2 = theCenterA->x() + (aMedDist * aCenterDir->x() - aCenterDir->y() * aHeight) / aCenterDist;
543 double y2 = theCenterA->y() + (aMedDist * aCenterDir->y() + aCenterDir->x() * aHeight) / aCenterDist;
545 std::shared_ptr<GeomAPI_XY> aPoint1(new GeomAPI_XY(x1, y1));
546 theCenters.push_back(aPoint1);
547 std::shared_ptr<GeomAPI_XY> aPoint2(new GeomAPI_XY(x2, y2));
548 theCenters.push_back(aPoint2);
553 void calculateFilletCenter(FeaturePtr theFeatureA, FeaturePtr theFeatureB,
554 double theRadius, bool theNotInversed[2],
555 std::shared_ptr<GeomAPI_XY>& theCenter,
556 std::shared_ptr<GeomAPI_XY>& theTangentA,
557 std::shared_ptr<GeomAPI_XY>& theTangentB)
559 static const int aNbFeatures = 2;
560 FeaturePtr aFeature[aNbFeatures] = {theFeatureA, theFeatureB};
561 std::shared_ptr<GeomAPI_XY> aStart[aNbFeatures], aEnd[aNbFeatures], aCenter[aNbFeatures];
562 std::shared_ptr<GeomDataAPI_Point2D> aStartPoint, aEndPoint;
564 for (int i = 0; i < aNbFeatures; i++) {
565 if (aFeature[i]->getKind() == SketchPlugin_Line::ID()) {
566 aStartPoint = std::dynamic_pointer_cast<GeomDataAPI_Point2D>(
567 aFeature[i]->attribute(SketchPlugin_Line::START_ID()));
568 aEndPoint = std::dynamic_pointer_cast<GeomDataAPI_Point2D>(
569 aFeature[i]->attribute(SketchPlugin_Line::END_ID()));
570 } else if (aFeature[i]->getKind() == SketchPlugin_Arc::ID()) {
571 aStartPoint = std::dynamic_pointer_cast<GeomDataAPI_Point2D>(
572 aFeature[i]->attribute(SketchPlugin_Arc::START_ID()));
573 aEndPoint = std::dynamic_pointer_cast<GeomDataAPI_Point2D>(
574 aFeature[i]->attribute(SketchPlugin_Arc::END_ID()));
575 aCenter[i] = std::dynamic_pointer_cast<GeomDataAPI_Point2D>(
576 aFeature[i]->attribute(SketchPlugin_Arc::CENTER_ID()))->pnt()->xy();
579 aStart[i] = std::shared_ptr<GeomAPI_XY>(theNotInversed[i] ?
580 new GeomAPI_XY(aStartPoint->x(), aStartPoint->y()) :
581 new GeomAPI_XY(aEndPoint->x(), aEndPoint->y()));
582 aEnd[i] = std::shared_ptr<GeomAPI_XY>(theNotInversed[i] ?
583 new GeomAPI_XY(aEndPoint->x(), aEndPoint->y()) :
584 new GeomAPI_XY(aStartPoint->x(), aStartPoint->y()));
587 if (theFeatureA->getKind() == SketchPlugin_Line::ID() &&
588 theFeatureB->getKind() == SketchPlugin_Line::ID()) {
589 std::shared_ptr<GeomAPI_Dir2d> aDir[2];
590 std::shared_ptr<GeomAPI_Dir2d> aDirT[2];
591 for (int i = 0; i < aNbFeatures; i++) {
592 aDir[i] = std::shared_ptr<GeomAPI_Dir2d>(new GeomAPI_Dir2d(aEnd[i]->decreased(aStart[i])));
593 aDirT[i] = std::shared_ptr<GeomAPI_Dir2d>(new GeomAPI_Dir2d(-aDir[i]->y(), aDir[i]->x()));
596 // get and filter possible centers
597 std::list< std::shared_ptr<GeomAPI_XY> > aSuspectCenters;
598 possibleFilletCenterLineLine(aStart[0], aDir[0], aStart[1], aDir[1], theRadius, aSuspectCenters);
600 std::list< std::shared_ptr<GeomAPI_XY> >::iterator anIt = aSuspectCenters.begin();
601 for (; anIt != aSuspectCenters.end(); anIt++) {
602 aDot = aDirT[0]->xy()->dot(aStart[0]->decreased(*anIt));
603 theTangentA = (*anIt)->added(aDirT[0]->xy()->multiplied(aDot));
604 if (theTangentA->decreased(aStart[0])->dot(aDir[0]->xy()) < 0.0)
605 continue; // incorrect position
606 aDot = aDirT[1]->xy()->dot(aStart[1]->decreased(*anIt));
607 theTangentB = (*anIt)->added(aDirT[1]->xy()->multiplied(aDot));
608 if (theTangentB->decreased(aStart[1])->dot(aDir[1]->xy()) < 0.0)
609 continue; // incorrect position
610 // the center is found, stop searching
614 } else if ((theFeatureA->getKind() == SketchPlugin_Arc::ID() &&
615 theFeatureB->getKind() == SketchPlugin_Line::ID()) ||
616 (theFeatureA->getKind() == SketchPlugin_Line::ID() &&
617 theFeatureB->getKind() == SketchPlugin_Arc::ID())) {
618 int aLineInd = theFeatureA->getKind() == SketchPlugin_Line::ID() ? 0 : 1;
619 double anArcRadius = aStart[1-aLineInd]->distance(aCenter[1-aLineInd]);
620 std::shared_ptr<GeomAPI_Dir2d> aDirLine = std::shared_ptr<GeomAPI_Dir2d>(
621 new GeomAPI_Dir2d(aEnd[aLineInd]->decreased(aStart[aLineInd])));
622 std::shared_ptr<GeomAPI_Dir2d> aDirT = std::shared_ptr<GeomAPI_Dir2d>(
623 new GeomAPI_Dir2d(-aDirLine->y(), aDirLine->x()));
625 std::shared_ptr<GeomAPI_Dir2d> aStartArcDir = std::shared_ptr<GeomAPI_Dir2d>(
626 new GeomAPI_Dir2d(aStart[1-aLineInd]->decreased(aCenter[1-aLineInd])));
627 std::shared_ptr<GeomAPI_Dir2d> aEndArcDir = std::shared_ptr<GeomAPI_Dir2d>(
628 new GeomAPI_Dir2d(aEnd[1-aLineInd]->decreased(aCenter[1-aLineInd])));
629 double anArcAngle = aEndArcDir->angle(aStartArcDir);
631 // get and filter possible centers
632 std::list< std::shared_ptr<GeomAPI_XY> > aSuspectCenters;
633 possibleFilletCenterLineArc(aStart[aLineInd], aDirLine, aCenter[1-aLineInd], anArcRadius, theRadius, aSuspectCenters);
635 std::shared_ptr<GeomAPI_XY> aLineTgPoint, anArcTgPoint;
636 std::list< std::shared_ptr<GeomAPI_XY> >::iterator anIt = aSuspectCenters.begin();
637 for (; anIt != aSuspectCenters.end(); anIt++) {
638 aDot = aDirT->xy()->dot(aStart[aLineInd]->decreased(*anIt));
639 aLineTgPoint = (*anIt)->added(aDirT->xy()->multiplied(aDot));
640 if (aLineTgPoint->decreased(aStart[aLineInd])->dot(aDirLine->xy()) < 0.0)
641 continue; // incorrect position
642 std::shared_ptr<GeomAPI_Dir2d> aCurDir = std::shared_ptr<GeomAPI_Dir2d>(
643 new GeomAPI_Dir2d((*anIt)->decreased(aCenter[1-aLineInd])));
644 double aCurAngle = aCurDir->angle(aStartArcDir);
645 if (anArcAngle < 0.0) aCurAngle *= -1.0;
646 if (aCurAngle < 0.0 || aCurAngle > fabs(anArcAngle))
647 continue; // incorrect position
648 // the center is found, stop searching
650 anArcTgPoint = aCenter[1-aLineInd]->added(aCurDir->xy()->multiplied(anArcRadius));
651 if (theFeatureA->getKind() == SketchPlugin_Line::ID()) {
652 theTangentA = aLineTgPoint;
653 theTangentB = anArcTgPoint;
655 theTangentA = anArcTgPoint;
656 theTangentB = aLineTgPoint;
660 } else if (theFeatureA->getKind() == SketchPlugin_Arc::ID() &&
661 theFeatureB->getKind() == SketchPlugin_Arc::ID()) {
662 double anArcRadius[aNbFeatures];
663 double anArcAngle[aNbFeatures];
664 std::shared_ptr<GeomAPI_Dir2d> aStartArcDir[aNbFeatures];
665 for (int i = 0; i < aNbFeatures; i++) {
666 anArcRadius[i] = aStart[i]->distance(aCenter[i]);
667 aStartArcDir[i] = std::shared_ptr<GeomAPI_Dir2d>(
668 new GeomAPI_Dir2d(aStart[i]->decreased(aCenter[i])));
669 std::shared_ptr<GeomAPI_Dir2d> aEndArcDir = std::shared_ptr<GeomAPI_Dir2d>(
670 new GeomAPI_Dir2d(aEnd[i]->decreased(aCenter[i])));
671 anArcAngle[i] = aEndArcDir->angle(aStartArcDir[i]);
674 // get and filter possible centers
675 std::list< std::shared_ptr<GeomAPI_XY> > aSuspectCenters;
676 possibleFilletCenterArcArc(aCenter[0], anArcRadius[0], aCenter[1], anArcRadius[1], theRadius, aSuspectCenters);
678 std::shared_ptr<GeomAPI_XY> aLineTgPoint, anArcTgPoint;
679 std::list< std::shared_ptr<GeomAPI_XY> >::iterator anIt = aSuspectCenters.begin();
680 for (; anIt != aSuspectCenters.end(); anIt++) {
681 std::shared_ptr<GeomAPI_Dir2d> aCurDir = std::shared_ptr<GeomAPI_Dir2d>(
682 new GeomAPI_Dir2d((*anIt)->decreased(aCenter[0])));
683 double aCurAngle = aCurDir->angle(aStartArcDir[0]);
684 if (anArcAngle[0] < 0.0) aCurAngle *= -1.0;
685 if (aCurAngle < 0.0 || aCurAngle > fabs(anArcAngle[0]))
686 continue; // incorrect position
687 theTangentA = aCenter[0]->added(aCurDir->xy()->multiplied(anArcRadius[0]));
689 aCurDir = std::shared_ptr<GeomAPI_Dir2d>(new GeomAPI_Dir2d((*anIt)->decreased(aCenter[1])));
690 aCurAngle = aCurDir->angle(aStartArcDir[1]);
691 if (anArcAngle[1] < 0.0) aCurAngle *= -1.0;
692 if (aCurAngle < 0.0 || aCurAngle > fabs(anArcAngle[1]))
693 continue; // incorrect position
694 theTangentB = aCenter[1]->added(aCurDir->xy()->multiplied(anArcRadius[1]));
696 // the center is found, stop searching