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>
29 #include <SketcherPrs_Factory.h>
31 #include <Config_PropManager.h>
32 #include <Events_Loop.h>
36 static const std::string PREVIOUS_VALUE("FilletPreviousRadius");
38 /// \brief Attract specified point on theNewArc to the attribute of theFeature
39 static void recalculateAttributes(FeaturePtr theNewArc, const std::string& theNewArcAttribute,
40 FeaturePtr theFeature, const std::string& theFeatureAttribute);
42 /// \brief Calculates center of fillet arc and coordinates of tangency points
43 static void calculateFilletCenter(FeaturePtr theFeatureA, FeaturePtr theFeatureB,
44 double theRadius, bool theNotInversed[2],
45 std::shared_ptr<GeomAPI_XY>& theCenter,
46 std::shared_ptr<GeomAPI_XY>& theTangentA,
47 std::shared_ptr<GeomAPI_XY>& theTangentB);
50 SketchPlugin_ConstraintFillet::SketchPlugin_ConstraintFillet()
54 void SketchPlugin_ConstraintFillet::initAttributes()
56 data()->addAttribute(SketchPlugin_Constraint::VALUE(), ModelAPI_AttributeDouble::typeId());
57 data()->addAttribute(SketchPlugin_Constraint::ENTITY_A(), ModelAPI_AttributeRefAttr::typeId());
58 data()->addAttribute(SketchPlugin_Constraint::ENTITY_B(), ModelAPI_AttributeRefAttr::typeId());
59 data()->addAttribute(SketchPlugin_Constraint::ENTITY_C(), 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_C());
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 AttributeRefAttrPtr aBaseB = std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(
83 aData->attribute(SketchPlugin_Constraint::ENTITY_B()));
84 if (!aBaseA->isInitialized() || !aBaseB->isInitialized() ||
85 !aBaseA->isObject() || !aBaseB->isObject())
87 // Check the fillet shapes is not initialized yet
88 AttributeRefListPtr aRefListOfFillet = std::dynamic_pointer_cast<ModelAPI_AttributeRefList>(
89 aData->attribute(SketchPlugin_Constraint::ENTITY_C()));
90 bool needNewObjects = aRefListOfFillet->size() == 0;
92 // Obtain features for the base objects
93 FeaturePtr aFeatureA, aFeatureB;
94 aRC = std::dynamic_pointer_cast<ModelAPI_ResultConstruction>(aBaseA->object());
95 if (aRC) aFeatureA = aRC->document()->feature(aRC);
96 aRC = std::dynamic_pointer_cast<ModelAPI_ResultConstruction>(aBaseB->object());
97 if (aRC) aFeatureB = aRC->document()->feature(aRC);
98 if (!aFeatureA || !aFeatureB)
101 FeaturePtr aNewFeatureA, aNewFeatureB, aNewArc;
102 if (needNewObjects) {
103 // Create list of objects composing a fillet
105 aNewFeatureA = SketchPlugin_Sketch::addUniqueNamedCopiedFeature(aFeatureA, sketch());
107 aNewFeatureB = SketchPlugin_Sketch::addUniqueNamedCopiedFeature(aFeatureB, sketch());
108 // create filleting arc (it will be attached to the list later)
109 aNewArc = sketch()->addFeature(SketchPlugin_Arc::ID());
111 // Obtain features from the list
112 std::list<ObjectPtr> aNewFeatList = aRefListOfFillet->list();
113 std::list<ObjectPtr>::iterator aFeatIt = aNewFeatList.begin();
114 aNewFeatureA = ModelAPI_Feature::feature(*aFeatIt++);
115 aNewFeatureB = ModelAPI_Feature::feature(*aFeatIt++);
116 aNewArc = ModelAPI_Feature::feature(*aFeatIt);
119 // Calculate arc attributes
120 static const int aNbFeatures = 2;
121 FeaturePtr aFeature[aNbFeatures] = {aFeatureA, aFeatureB};
122 FeaturePtr aNewFeature[aNbFeatures] = {aNewFeatureA, aNewFeatureB};
123 std::shared_ptr<GeomAPI_Dir2d> aTangentDir[aNbFeatures]; // tangent directions of the features in coincident point
124 bool isStart[aNbFeatures]; // indicates which point the features share
125 std::shared_ptr<GeomAPI_Pnt2d> aStartEndPnt[aNbFeatures * 2]; // first pair of points relate to first feature, second pair - to second
126 std::string aFeatAttributes[aNbFeatures * 2]; // attributes of features
127 for (int i = 0; i < aNbFeatures; i++) {
128 std::string aStartAttr, aEndAttr;
129 if (aNewFeature[i]->getKind() == SketchPlugin_Line::ID()) {
130 aStartAttr = SketchPlugin_Line::START_ID();
131 aEndAttr = SketchPlugin_Line::END_ID();
132 } else if (aNewFeature[i]->getKind() == SketchPlugin_Arc::ID()) {
133 aStartAttr = SketchPlugin_Arc::START_ID();
134 aEndAttr = SketchPlugin_Arc::END_ID();
135 } else { // wrong argument
136 aRefListOfFillet->remove(aNewFeatureA);
137 aRefListOfFillet->remove(aNewFeatureB);
138 aRefListOfFillet->remove(aNewArc);
141 aFeatAttributes[2*i] = aStartAttr;
142 aStartEndPnt[2*i] = std::dynamic_pointer_cast<GeomDataAPI_Point2D>(
143 aFeature[i]->attribute(aStartAttr))->pnt();
144 aFeatAttributes[2*i+1] = aEndAttr;
145 aStartEndPnt[2*i+1] = std::dynamic_pointer_cast<GeomDataAPI_Point2D>(
146 aFeature[i]->attribute(aEndAttr))->pnt();
148 for (int i = 0; i < aNbFeatures; i++) {
150 for (; j < 2 * aNbFeatures; j++)
151 if (aStartEndPnt[i]->distance(aStartEndPnt[j]) < 1.e-10) {
153 isStart[1] = j==aNbFeatures;
156 if (j < 2 * aNbFeatures)
159 // tangent directions of the features
160 for (int i = 0; i < aNbFeatures; i++) {
161 std::shared_ptr<GeomAPI_XY> aDir;
162 if (aNewFeature[i]->getKind() == SketchPlugin_Line::ID()) {
163 aDir = aStartEndPnt[2*i+1]->xy()->decreased(aStartEndPnt[2*i]->xy());
165 aDir = aDir->multiplied(-1.0);
166 } else if (aNewFeature[i]->getKind() == SketchPlugin_Arc::ID()) {
167 std::shared_ptr<GeomAPI_Pnt2d> aCenterPoint =
168 std::dynamic_pointer_cast<GeomDataAPI_Point2D>(
169 aNewFeature[i]->attribute(SketchPlugin_Arc::CENTER_ID()))->pnt();
170 aDir = isStart[i] ? aStartEndPnt[2*i]->xy() : aStartEndPnt[2*i+1]->xy();
171 aDir = aDir->decreased(aCenterPoint->xy());
173 double x = aDir->x();
174 double y = aDir->y();
178 aDir = aDir->multiplied(-1.0);
180 aTangentDir[i] = std::shared_ptr<GeomAPI_Dir2d>(new GeomAPI_Dir2d(aDir));
183 // Wait all constraints being created, then send update events
184 static Events_ID anUpdateEvent = Events_Loop::eventByName(EVENT_OBJECT_UPDATED);
185 bool isUpdateFlushed = Events_Loop::loop()->isFlushed(anUpdateEvent);
187 Events_Loop::loop()->setFlushed(anUpdateEvent, false);
189 // By default, the start point of fillet arc is connected to FeatureA,
190 // and the end point - to FeatureB. But when the angle between TangentDirA and
191 // TangentDirB greater 180 degree, the sequaence of features need to be reversed.
192 double cosBA = aTangentDir[0]->cross(aTangentDir[1]); // cos(B-A), where A and B - angles between corresponding tanget direction and the X axis
193 bool isReversed = cosBA > 0.0;
195 // Calculate fillet arc parameters
196 std::shared_ptr<GeomAPI_XY> aCenter, aTangentPntA, aTangentPntB;
197 calculateFilletCenter(aFeatureA, aFeatureB, aFilletRadius, isStart, aCenter, aTangentPntA, aTangentPntB);
199 std::dynamic_pointer_cast<GeomDataAPI_Point2D>(
200 aNewFeatureA->attribute(aFeatAttributes[isStart[0] ? 0 : 1]))->setValue(
201 aTangentPntA->x(), aTangentPntA->y());
202 aNewFeatureA->execute();
203 std::dynamic_pointer_cast<GeomDataAPI_Point2D>(
204 aNewFeatureB->attribute(aFeatAttributes[2 + (isStart[1] ? 0 : 1)]))->setValue(
205 aTangentPntB->x(), aTangentPntB->y());
206 aNewFeatureB->execute();
208 std::dynamic_pointer_cast<GeomDataAPI_Point2D>(
209 aNewArc->attribute(SketchPlugin_Arc::CENTER_ID()))->setValue(
210 aCenter->x(), aCenter->y());
212 std::shared_ptr<GeomAPI_XY> aTmp = aTangentPntA;
213 aTangentPntA = aTangentPntB;
216 std::dynamic_pointer_cast<GeomDataAPI_Point2D>(
217 aNewArc->attribute(SketchPlugin_Arc::START_ID()))->setValue(aTangentPntA->x(), aTangentPntA->y());
218 std::dynamic_pointer_cast<GeomDataAPI_Point2D>(
219 aNewArc->attribute(SketchPlugin_Arc::END_ID()))->setValue(aTangentPntB->x(), aTangentPntB->y());
222 if (needNewObjects) {
223 // attach new arc to the list
224 aRefListOfFillet->append(aNewFeatureA->lastResult());
225 aRefListOfFillet->append(aNewFeatureB->lastResult());
226 aRefListOfFillet->append(aNewArc->lastResult());
228 myProducedFeatures.push_back(aNewFeatureA);
229 myProducedFeatures.push_back(aNewFeatureB);
230 myProducedFeatures.push_back(aNewArc);
232 // Create list of additional constraints:
233 // 1. Coincidence of boundary points of features (copied lines/arcs) and fillet arc
235 FeaturePtr aConstraint = sketch()->addFeature(SketchPlugin_ConstraintCoincidence::ID());
236 AttributeRefAttrPtr aRefAttr = std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(
237 aConstraint->attribute(SketchPlugin_Constraint::ENTITY_A()));
238 aRefAttr->setAttr(aNewArc->attribute(SketchPlugin_Arc::START_ID()));
239 aRefAttr = std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(
240 aConstraint->attribute(SketchPlugin_Constraint::ENTITY_B()));
241 int aFeatInd = isReversed ? 1 : 0;
242 int anAttrInd = (isReversed ? 2 : 0) + (isStart[isReversed ? 1 : 0] ? 0 : 1);
243 aRefAttr->setAttr(aNewFeature[aFeatInd]->attribute(aFeatAttributes[anAttrInd]));
244 recalculateAttributes(aNewArc, SketchPlugin_Arc::START_ID(), aNewFeature[aFeatInd], aFeatAttributes[anAttrInd]);
245 aConstraint->execute();
246 myProducedFeatures.push_back(aConstraint);
247 ModelAPI_EventCreator::get()->sendUpdated(aConstraint, anUpdateEvent);
249 aConstraint = sketch()->addFeature(SketchPlugin_ConstraintCoincidence::ID());
250 aRefAttr = std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(
251 aConstraint->attribute(SketchPlugin_Constraint::ENTITY_A()));
252 aRefAttr->setAttr(aNewArc->attribute(SketchPlugin_Arc::END_ID()));
253 aRefAttr = std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(
254 aConstraint->attribute(SketchPlugin_Constraint::ENTITY_B()));
255 aFeatInd = isReversed ? 0 : 1;
256 anAttrInd = (isReversed ? 0 : 2) + (isStart[isReversed ? 0 : 1] ? 0 : 1);
257 aRefAttr->setAttr(aNewFeature[aFeatInd]->attribute(aFeatAttributes[anAttrInd]));
258 recalculateAttributes(aNewArc, SketchPlugin_Arc::END_ID(), aNewFeature[aFeatInd], aFeatAttributes[anAttrInd]);
259 aConstraint->execute();
260 myProducedFeatures.push_back(aConstraint);
261 ModelAPI_EventCreator::get()->sendUpdated(aConstraint, anUpdateEvent);
262 // 2. Fillet arc radius
263 aConstraint = sketch()->addFeature(SketchPlugin_ConstraintRadius::ID());
264 aRefAttr = std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(
265 aConstraint->attribute(SketchPlugin_Constraint::ENTITY_A()));
266 aRefAttr->setObject(aNewArc->lastResult());
267 std::dynamic_pointer_cast<ModelAPI_AttributeDouble>(
268 aConstraint->attribute(SketchPlugin_Constraint::VALUE()))->setValue(aFilletRadius);
269 std::dynamic_pointer_cast<GeomDataAPI_Point2D>(
270 aConstraint->attribute(SketchPlugin_Constraint::FLYOUT_VALUE_PNT()))->setValue(
271 isStart[0] ? aStartEndPnt[0] : aStartEndPnt[1]);
272 aConstraint->execute();
273 myProducedFeatures.push_back(aConstraint);
274 ModelAPI_EventCreator::get()->sendUpdated(aConstraint, anUpdateEvent);
275 // 3. Tangency of fillet arc and features
276 for (int i = 0; i < aNbFeatures; i++) {
277 aConstraint = sketch()->addFeature(SketchPlugin_ConstraintTangent::ID());
278 aRefAttr = std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(
279 aConstraint->attribute(SketchPlugin_Constraint::ENTITY_A()));
280 aRefAttr->setObject(aNewArc->lastResult());
281 aRefAttr = std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(
282 aConstraint->attribute(SketchPlugin_Constraint::ENTITY_B()));
283 bool isArc = aNewFeature[i]->getKind() == SketchPlugin_Arc::ID();
284 aRefAttr->setObject(isArc ? aNewFeature[i]->lastResult() : aNewFeature[i]->firstResult());
285 aConstraint->execute();
286 myProducedFeatures.push_back(aConstraint);
287 ModelAPI_EventCreator::get()->sendUpdated(aConstraint, anUpdateEvent);
289 // 4. Coincidence of free boundaries of base and copied features
290 for (int i = 0; i < aNbFeatures; i++) {
291 anAttrInd = 2*i + (isStart[i] ? 1 : 0);
292 aConstraint = sketch()->addFeature(SketchPlugin_ConstraintCoincidence::ID());
293 aRefAttr = std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(
294 aConstraint->attribute(SketchPlugin_Constraint::ENTITY_A()));
295 aRefAttr->setAttr(aFeature[i]->attribute(aFeatAttributes[anAttrInd]));
296 aRefAttr = std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(
297 aConstraint->attribute(SketchPlugin_Constraint::ENTITY_B()));
298 aRefAttr->setAttr(aNewFeature[i]->attribute(aFeatAttributes[anAttrInd]));
299 myProducedFeatures.push_back(aConstraint);
301 // 5. Tangent points should be placed on the base features
302 for (int i = 0; i < aNbFeatures; i++) {
303 anAttrInd = 2*i + (isStart[i] ? 0 : 1);
304 aConstraint = sketch()->addFeature(SketchPlugin_ConstraintCoincidence::ID());
305 aRefAttr = std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(
306 aConstraint->attribute(SketchPlugin_Constraint::ENTITY_A()));
307 aRefAttr->setAttr(aNewFeature[i]->attribute(aFeatAttributes[anAttrInd]));
308 aRefAttr = std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(
309 aConstraint->attribute(SketchPlugin_Constraint::ENTITY_B()));
310 aRefAttr->setObject(aFeature[i]->lastResult());
311 myProducedFeatures.push_back(aConstraint);
313 // make base features auxiliary
314 aFeatureA->boolean(SketchPlugin_SketchEntity::AUXILIARY_ID())->setValue(true);
315 aFeatureB->boolean(SketchPlugin_SketchEntity::AUXILIARY_ID())->setValue(true);
316 myBaseObjects.clear();
317 myBaseObjects.push_back(aFeatureA);
318 myBaseObjects.push_back(aFeatureB);
320 // Update radius value
321 int aNbSubs = sketch()->numberOfSubs();
322 FeaturePtr aSubFeature;
323 for (int aSub = 0; aSub < aNbSubs; aSub++) {
324 aSubFeature = sketch()->subFeature(aSub);
325 if (aSubFeature->getKind() != SketchPlugin_ConstraintRadius::ID())
327 AttributeRefAttrPtr aRefAttr = std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(
328 aSubFeature->attribute(SketchPlugin_Constraint::ENTITY_A()));
329 if (!aRefAttr || !aRefAttr->isObject())
331 FeaturePtr aFeature = ModelAPI_Feature::feature(aRefAttr->object());
332 if (aFeature == aNewArc) {
333 AttributeDoublePtr aRadius = std::dynamic_pointer_cast<ModelAPI_AttributeDouble>(
334 aSubFeature->attribute(SketchPlugin_Constraint::VALUE()));
335 aRadius->setValue(aFilletRadius);
341 // send events to update the sub-features by the solver
343 Events_Loop::loop()->setFlushed(anUpdateEvent, true);
345 // the viewer update should be unblocked in order after the fillet features
346 // are processed by the solver
347 //aMsg = std::shared_ptr<Events_Message>(
348 // new Events_Message(Events_Loop::eventByName(EVENT_UPDATE_VIEWER_UNBLOCKED)));
349 //Events_Loop::loop()->send(aMsg);
352 void SketchPlugin_ConstraintFillet::attributeChanged(const std::string& theID)
354 if (theID == SketchPlugin_Constraint::ENTITY_A() ||
355 theID == SketchPlugin_Constraint::ENTITY_B()) {
356 // clear the list of fillet entities
357 AttributeRefListPtr aRefListOfFillet = std::dynamic_pointer_cast<ModelAPI_AttributeRefList>(
358 data()->attribute(SketchPlugin_Constraint::ENTITY_C()));
359 aRefListOfFillet->clear();
361 // remove all produced objects and constraints
362 DocumentPtr aDoc = sketch()->document();
363 std::list<FeaturePtr>::iterator aCIt = myProducedFeatures.begin();
364 for (; aCIt != myProducedFeatures.end(); ++aCIt)
365 aDoc->removeFeature(*aCIt);
366 myProducedFeatures.clear();
368 // clear auxiliary flag on initial objects
369 for (aCIt = myBaseObjects.begin(); aCIt != myBaseObjects.end(); ++aCIt)
370 (*aCIt)->boolean(SketchPlugin_SketchEntity::AUXILIARY_ID())->setValue(false);
371 myBaseObjects.clear();
375 AISObjectPtr SketchPlugin_ConstraintFillet::getAISObject(AISObjectPtr thePrevious)
380 AISObjectPtr anAIS = thePrevious;
381 /// TODO: Equal constraint presentation should be put here
385 bool SketchPlugin_ConstraintFillet::isMacro() const
391 // ========= Auxiliary functions =================
392 void recalculateAttributes(FeaturePtr theNewArc, const std::string& theNewArcAttribute,
393 FeaturePtr theFeature, const std::string& theFeatureAttribute)
395 std::shared_ptr<GeomAPI_Pnt2d> anArcPoint = std::dynamic_pointer_cast<GeomDataAPI_Point2D>(
396 theNewArc->attribute(theNewArcAttribute))->pnt();
397 std::dynamic_pointer_cast<GeomDataAPI_Point2D>(
398 theFeature->attribute(theFeatureAttribute))->setValue(anArcPoint->x(), anArcPoint->y());
401 /// \brief Find intersections of lines shifted along normal direction
402 void possibleFilletCenterLineLine(
403 std::shared_ptr<GeomAPI_XY> thePointA, std::shared_ptr<GeomAPI_Dir2d> theDirA,
404 std::shared_ptr<GeomAPI_XY> thePointB, std::shared_ptr<GeomAPI_Dir2d> theDirB,
405 double theRadius, std::list< std::shared_ptr<GeomAPI_XY> >& theCenters)
407 std::shared_ptr<GeomAPI_Dir2d> aDirAT(new GeomAPI_Dir2d(-theDirA->y(), theDirA->x()));
408 std::shared_ptr<GeomAPI_Dir2d> aDirBT(new GeomAPI_Dir2d(-theDirB->y(), theDirB->x()));
409 std::shared_ptr<GeomAPI_XY> aPntA, aPntB;
410 double aDet = theDirA->cross(theDirB);
411 for (double aStepA = -1.0; aStepA <= 1.0; aStepA += 2.0) {
412 aPntA = thePointA->added(aDirAT->xy()->multiplied(aStepA * theRadius));
413 for (double aStepB = -1.0; aStepB <= 1.0; aStepB += 2.0) {
414 aPntB = thePointB->added(aDirBT->xy()->multiplied(aStepB * theRadius));
415 double aVX = aDirAT->xy()->dot(aPntA);
416 double aVY = aDirBT->xy()->dot(aPntB);
417 std::shared_ptr<GeomAPI_XY> aPoint(new GeomAPI_XY(
418 (theDirB->x() * aVX - theDirA->x() * aVY) / aDet,
419 (theDirB->y() * aVX - theDirA->y() * aVY) / aDet));
420 theCenters.push_back(aPoint);
425 /// \brief Find intersections of line shifted along normal direction in both sides
426 /// and a circle with extended radius
427 void possibleFilletCenterLineArc(
428 std::shared_ptr<GeomAPI_XY> theStartLine, std::shared_ptr<GeomAPI_Dir2d> theDirLine,
429 std::shared_ptr<GeomAPI_XY> theCenterArc, double theRadiusArc,
430 double theRadius, std::list< std::shared_ptr<GeomAPI_XY> >& theCenters)
432 std::shared_ptr<GeomAPI_Dir2d> aDirT(new GeomAPI_Dir2d(-theDirLine->y(), theDirLine->x()));
433 std::shared_ptr<GeomAPI_XY> aPnt;
434 double aDirNorm2 = theDirLine->dot(theDirLine);
436 double aDirX = theDirLine->x();
437 double aDirX2 = theDirLine->x() * theDirLine->x();
438 double aDirY2 = theDirLine->y() * theDirLine->y();
439 double aDirXY = theDirLine->x() * theDirLine->y();
440 for (double aStepA = -1.0; aStepA <= 1.0; aStepA += 2.0) {
441 aPnt = theStartLine->added(aDirT->xy()->multiplied(aStepA * theRadius));
442 double aCoeff = aDirT->xy()->dot(aPnt->decreased(theCenterArc));
443 double aCoeff2 = aCoeff * aCoeff;
444 for (double aStepB = -1.0; aStepB <= 1.0; aStepB += 2.0) {
445 aRad = theRadiusArc + aStepB * theRadius;
446 double aD = aRad * aRad * aDirNorm2 - aCoeff2;
449 double aDs = sqrt(aD);
450 double x1 = theCenterArc->x() + (aCoeff * aDirT->x() - aDirT->y() * aDs) / aDirNorm2;
451 double x2 = theCenterArc->x() + (aCoeff * aDirT->x() + aDirT->y() * aDs) / aDirNorm2;
452 double y1 = (aDirX2 * aPnt->y() + aDirY2 * theCenterArc->y() -
453 aDirXY * (aPnt->x() - theCenterArc->x()) - theDirLine->y() * aDs) / aDirNorm2;
454 double y2 = (aDirX2 * aPnt->y() + aDirY2 * theCenterArc->y() -
455 aDirXY * (aPnt->x() - theCenterArc->x()) + theDirLine->y() * aDs) / aDirNorm2;
457 std::shared_ptr<GeomAPI_XY> aPoint1(new GeomAPI_XY(x1, y1));
458 theCenters.push_back(aPoint1);
459 std::shared_ptr<GeomAPI_XY> aPoint2(new GeomAPI_XY(x2, y2));
460 theCenters.push_back(aPoint2);
465 /// \brief Find intersections of two circles with extended radii
466 void possibleFilletCenterArcArc(
467 std::shared_ptr<GeomAPI_XY> theCenterA, double theRadiusA,
468 std::shared_ptr<GeomAPI_XY> theCenterB, double theRadiusB,
469 double theRadius, std::list< std::shared_ptr<GeomAPI_XY> >& theCenters)
471 std::shared_ptr<GeomAPI_XY> aCenterDir = theCenterB->decreased(theCenterA);
472 double aCenterDist2 = aCenterDir->dot(aCenterDir);
473 double aCenterDist = sqrt(aCenterDist2);
476 for (double aStepA = -1.0; aStepA <= 1.0; aStepA += 2.0) {
477 aRadA = theRadiusA + aStepA * theRadius;
478 for (double aStepB = -1.0; aStepB <= 1.0; aStepB += 2.0) {
479 aRadB = theRadiusB + aStepB * theRadius;
480 if (aRadA + aRadB < aCenterDist || fabs(aRadA - aRadB) > aCenterDist)
481 continue; // there is no intersections
483 double aMedDist = (aRadA * aRadA - aRadB * aRadB + aCenterDist2) / (2.0 * aCenterDist);
484 double aHeight = sqrt(aRadA * aRadA - aMedDist * aMedDist);
486 double x1 = theCenterA->x() + (aMedDist * aCenterDir->x() + aCenterDir->y() * aHeight) / aCenterDist;
487 double y1 = theCenterA->y() + (aMedDist * aCenterDir->y() - aCenterDir->x() * aHeight) / aCenterDist;
489 double x2 = theCenterA->x() + (aMedDist * aCenterDir->x() - aCenterDir->y() * aHeight) / aCenterDist;
490 double y2 = theCenterA->y() + (aMedDist * aCenterDir->y() + aCenterDir->x() * aHeight) / aCenterDist;
492 std::shared_ptr<GeomAPI_XY> aPoint1(new GeomAPI_XY(x1, y1));
493 theCenters.push_back(aPoint1);
494 std::shared_ptr<GeomAPI_XY> aPoint2(new GeomAPI_XY(x2, y2));
495 theCenters.push_back(aPoint2);
500 void calculateFilletCenter(FeaturePtr theFeatureA, FeaturePtr theFeatureB,
501 double theRadius, bool theNotInversed[2],
502 std::shared_ptr<GeomAPI_XY>& theCenter,
503 std::shared_ptr<GeomAPI_XY>& theTangentA,
504 std::shared_ptr<GeomAPI_XY>& theTangentB)
506 static const int aNbFeatures = 2;
507 FeaturePtr aFeature[aNbFeatures] = {theFeatureA, theFeatureB};
508 std::shared_ptr<GeomAPI_XY> aStart[aNbFeatures], aEnd[aNbFeatures], aCenter[aNbFeatures];
509 std::shared_ptr<GeomDataAPI_Point2D> aStartPoint, aEndPoint;
511 for (int i = 0; i < aNbFeatures; i++) {
512 if (aFeature[i]->getKind() == SketchPlugin_Line::ID()) {
513 aStartPoint = std::dynamic_pointer_cast<GeomDataAPI_Point2D>(
514 aFeature[i]->attribute(SketchPlugin_Line::START_ID()));
515 aEndPoint = std::dynamic_pointer_cast<GeomDataAPI_Point2D>(
516 aFeature[i]->attribute(SketchPlugin_Line::END_ID()));
517 } else if (aFeature[i]->getKind() == SketchPlugin_Arc::ID()) {
518 aStartPoint = std::dynamic_pointer_cast<GeomDataAPI_Point2D>(
519 aFeature[i]->attribute(SketchPlugin_Arc::START_ID()));
520 aEndPoint = std::dynamic_pointer_cast<GeomDataAPI_Point2D>(
521 aFeature[i]->attribute(SketchPlugin_Arc::END_ID()));
522 aCenter[i] = std::dynamic_pointer_cast<GeomDataAPI_Point2D>(
523 aFeature[i]->attribute(SketchPlugin_Arc::CENTER_ID()))->pnt()->xy();
526 aStart[i] = std::shared_ptr<GeomAPI_XY>(theNotInversed[i] ?
527 new GeomAPI_XY(aStartPoint->x(), aStartPoint->y()) :
528 new GeomAPI_XY(aEndPoint->x(), aEndPoint->y()));
529 aEnd[i] = std::shared_ptr<GeomAPI_XY>(theNotInversed[i] ?
530 new GeomAPI_XY(aEndPoint->x(), aEndPoint->y()) :
531 new GeomAPI_XY(aStartPoint->x(), aStartPoint->y()));
534 if (theFeatureA->getKind() == SketchPlugin_Line::ID() &&
535 theFeatureB->getKind() == SketchPlugin_Line::ID()) {
536 std::shared_ptr<GeomAPI_Dir2d> aDir[2];
537 std::shared_ptr<GeomAPI_Dir2d> aDirT[2];
538 for (int i = 0; i < aNbFeatures; i++) {
539 aDir[i] = std::shared_ptr<GeomAPI_Dir2d>(new GeomAPI_Dir2d(aEnd[i]->decreased(aStart[i])));
540 aDirT[i] = std::shared_ptr<GeomAPI_Dir2d>(new GeomAPI_Dir2d(-aDir[i]->y(), aDir[i]->x()));
543 // get and filter possible centers
544 std::list< std::shared_ptr<GeomAPI_XY> > aSuspectCenters;
545 possibleFilletCenterLineLine(aStart[0], aDir[0], aStart[1], aDir[1], theRadius, aSuspectCenters);
547 std::list< std::shared_ptr<GeomAPI_XY> >::iterator anIt = aSuspectCenters.begin();
548 for (; anIt != aSuspectCenters.end(); anIt++) {
549 aDot = aDirT[0]->xy()->dot(aStart[0]->decreased(*anIt));
550 theTangentA = (*anIt)->added(aDirT[0]->xy()->multiplied(aDot));
551 if (theTangentA->decreased(aStart[0])->dot(aDir[0]->xy()) < 0.0)
552 continue; // incorrect position
553 aDot = aDirT[1]->xy()->dot(aStart[1]->decreased(*anIt));
554 theTangentB = (*anIt)->added(aDirT[1]->xy()->multiplied(aDot));
555 if (theTangentB->decreased(aStart[1])->dot(aDir[1]->xy()) < 0.0)
556 continue; // incorrect position
557 // the center is found, stop searching
561 } else if ((theFeatureA->getKind() == SketchPlugin_Arc::ID() &&
562 theFeatureB->getKind() == SketchPlugin_Line::ID()) ||
563 (theFeatureA->getKind() == SketchPlugin_Line::ID() &&
564 theFeatureB->getKind() == SketchPlugin_Arc::ID())) {
565 int aLineInd = theFeatureA->getKind() == SketchPlugin_Line::ID() ? 0 : 1;
566 double anArcRadius = aStart[1-aLineInd]->distance(aCenter[1-aLineInd]);
567 std::shared_ptr<GeomAPI_Dir2d> aDirLine = std::shared_ptr<GeomAPI_Dir2d>(
568 new GeomAPI_Dir2d(aEnd[aLineInd]->decreased(aStart[aLineInd])));
569 std::shared_ptr<GeomAPI_Dir2d> aDirT = std::shared_ptr<GeomAPI_Dir2d>(
570 new GeomAPI_Dir2d(-aDirLine->y(), aDirLine->x()));
572 std::shared_ptr<GeomAPI_Dir2d> aStartArcDir = std::shared_ptr<GeomAPI_Dir2d>(
573 new GeomAPI_Dir2d(aStart[1-aLineInd]->decreased(aCenter[1-aLineInd])));
574 std::shared_ptr<GeomAPI_Dir2d> aEndArcDir = std::shared_ptr<GeomAPI_Dir2d>(
575 new GeomAPI_Dir2d(aEnd[1-aLineInd]->decreased(aCenter[1-aLineInd])));
576 double anArcAngle = aEndArcDir->angle(aStartArcDir);
578 // get and filter possible centers
579 std::list< std::shared_ptr<GeomAPI_XY> > aSuspectCenters;
580 possibleFilletCenterLineArc(aStart[aLineInd], aDirLine, aCenter[1-aLineInd], anArcRadius, theRadius, aSuspectCenters);
582 std::shared_ptr<GeomAPI_XY> aLineTgPoint, anArcTgPoint;
583 std::list< std::shared_ptr<GeomAPI_XY> >::iterator anIt = aSuspectCenters.begin();
584 for (; anIt != aSuspectCenters.end(); anIt++) {
585 aDot = aDirT->xy()->dot(aStart[aLineInd]->decreased(*anIt));
586 aLineTgPoint = (*anIt)->added(aDirT->xy()->multiplied(aDot));
587 if (aLineTgPoint->decreased(aStart[aLineInd])->dot(aDirLine->xy()) < 0.0)
588 continue; // incorrect position
589 std::shared_ptr<GeomAPI_Dir2d> aCurDir = std::shared_ptr<GeomAPI_Dir2d>(
590 new GeomAPI_Dir2d((*anIt)->decreased(aCenter[1-aLineInd])));
591 double aCurAngle = aCurDir->angle(aStartArcDir);
592 if (anArcAngle < 0.0) aCurAngle *= -1.0;
593 if (aCurAngle < 0.0 || aCurAngle > fabs(anArcAngle))
594 continue; // incorrect position
595 // the center is found, stop searching
597 anArcTgPoint = aCenter[1-aLineInd]->added(aCurDir->xy()->multiplied(anArcRadius));
598 if (theFeatureA->getKind() == SketchPlugin_Line::ID()) {
599 theTangentA = aLineTgPoint;
600 theTangentB = anArcTgPoint;
602 theTangentA = anArcTgPoint;
603 theTangentB = aLineTgPoint;
607 } else if (theFeatureA->getKind() == SketchPlugin_Arc::ID() &&
608 theFeatureB->getKind() == SketchPlugin_Arc::ID()) {
609 double anArcRadius[aNbFeatures];
610 double anArcAngle[aNbFeatures];
611 std::shared_ptr<GeomAPI_Dir2d> aStartArcDir[aNbFeatures];
612 for (int i = 0; i < aNbFeatures; i++) {
613 anArcRadius[i] = aStart[i]->distance(aCenter[i]);
614 aStartArcDir[i] = std::shared_ptr<GeomAPI_Dir2d>(
615 new GeomAPI_Dir2d(aStart[i]->decreased(aCenter[i])));
616 std::shared_ptr<GeomAPI_Dir2d> aEndArcDir = std::shared_ptr<GeomAPI_Dir2d>(
617 new GeomAPI_Dir2d(aEnd[i]->decreased(aCenter[i])));
618 anArcAngle[i] = aEndArcDir->angle(aStartArcDir[i]);
621 // get and filter possible centers
622 std::list< std::shared_ptr<GeomAPI_XY> > aSuspectCenters;
623 possibleFilletCenterArcArc(aCenter[0], anArcRadius[0], aCenter[1], anArcRadius[1], theRadius, aSuspectCenters);
625 std::shared_ptr<GeomAPI_XY> aLineTgPoint, anArcTgPoint;
626 std::list< std::shared_ptr<GeomAPI_XY> >::iterator anIt = aSuspectCenters.begin();
627 for (; anIt != aSuspectCenters.end(); anIt++) {
628 std::shared_ptr<GeomAPI_Dir2d> aCurDir = std::shared_ptr<GeomAPI_Dir2d>(
629 new GeomAPI_Dir2d((*anIt)->decreased(aCenter[0])));
630 double aCurAngle = aCurDir->angle(aStartArcDir[0]);
631 if (anArcAngle[0] < 0.0) aCurAngle *= -1.0;
632 if (aCurAngle < 0.0 || aCurAngle > fabs(anArcAngle[0]))
633 continue; // incorrect position
634 theTangentA = aCenter[0]->added(aCurDir->xy()->multiplied(anArcRadius[0]));
636 aCurDir = std::shared_ptr<GeomAPI_Dir2d>(new GeomAPI_Dir2d((*anIt)->decreased(aCenter[1])));
637 aCurAngle = aCurDir->angle(aStartArcDir[1]);
638 if (anArcAngle[1] < 0.0) aCurAngle *= -1.0;
639 if (aCurAngle < 0.0 || aCurAngle > fabs(anArcAngle[1]))
640 continue; // incorrect position
641 theTangentB = aCenter[1]->added(aCurDir->xy()->multiplied(anArcRadius[1]));
643 // the center is found, stop searching