1 // Copyright (C) 2014-20xx CEA/DEN, EDF R&D -->
3 // File: SketchPlugin_Arc.cpp
4 // Created: 26 Apr 2014
5 // Author: Artem ZHIDKOV
7 #include "SketchPlugin_Arc.h"
8 #include "SketchPlugin_Sketch.h"
9 #include <SketchPlugin_ConstraintCoincidence.h>
10 #include <SketchPlugin_ConstraintTangent.h>
12 #include <Events_Loop.h>
13 #include <ModelAPI_Data.h>
14 #include <ModelAPI_ResultConstruction.h>
15 #include <ModelAPI_AttributeDouble.h>
16 #include <ModelAPI_AttributeRefAttr.h>
17 #include <ModelAPI_AttributeSelection.h>
18 #include <ModelAPI_AttributeString.h>
19 #include <ModelAPI_Events.h>
20 #include <ModelAPI_Validator.h>
21 #include <ModelAPI_Session.h>
22 #include <ModelAPI_Tools.h>
24 #include <GeomAPI_Ax2.h>
25 #include <GeomAPI_Circ2d.h>
26 #include <GeomAPI_Circ.h>
27 #include <GeomAPI_Dir2d.h>
28 #include <GeomAPI_Dir.h>
29 #include <GeomAPI_Lin2d.h>
30 #include <GeomAPI_Lin.h>
31 #include <GeomAPI_Pnt2d.h>
32 #include <GeomAPI_Vertex.h>
33 #include <GeomAPI_XY.h>
34 #include <GeomDataAPI_Point2D.h>
35 #include <GeomDataAPI_Dir.h>
36 #include <GeomAlgoAPI_PointBuilder.h>
37 #include <GeomAlgoAPI_EdgeBuilder.h>
38 #include <GeomAlgoAPI_CompoundBuilder.h>
42 const double tolerance = 1e-7;
43 const double paramTolerance = 1.e-4;
44 const double PI = 3.141592653589793238463;
47 static const std::string& POINT_ID(int theIndex)
50 case 1: return SketchPlugin_Arc::START_ID();
51 case 2: return SketchPlugin_Arc::END_ID();
52 case 3: return SketchPlugin_Arc::PASSED_POINT_ID();
55 static const std::string DUMMY;
62 SketchPlugin_Arc::SketchPlugin_Arc()
63 : SketchPlugin_SketchEntity()
65 myStartUpdate = false;
71 myParamBefore = PI * 2.0;
74 void SketchPlugin_Arc::initDerivedClassAttributes()
76 data()->addAttribute(CENTER_ID(), GeomDataAPI_Point2D::typeId());
77 data()->addAttribute(START_ID(), GeomDataAPI_Point2D::typeId());
78 std::shared_ptr<GeomDataAPI_Point2D> anEndAttr = std::dynamic_pointer_cast<
79 GeomDataAPI_Point2D>(data()->addAttribute(END_ID(), GeomDataAPI_Point2D::typeId()));
80 data()->addAttribute(EXTERNAL_ID(), ModelAPI_AttributeSelection::typeId());
81 ModelAPI_Session::get()->validators()->registerNotObligatory(getKind(), EXTERNAL_ID());
83 AttributeBooleanPtr isInversed = std::dynamic_pointer_cast<ModelAPI_AttributeBoolean>(
84 data()->addAttribute(INVERSED_ID(), ModelAPI_AttributeBoolean::typeId()));
86 // get the initial values
87 if (anEndAttr->isInitialized()) {
88 myXEndBefore = anEndAttr->x();
89 myYEndBefore = anEndAttr->y();
92 AttributeStringPtr anArcType = std::dynamic_pointer_cast<ModelAPI_AttributeString>(
93 data()->addAttribute(ARC_TYPE(), ModelAPI_AttributeString::typeId()));
95 data()->addAttribute(PASSED_POINT_ID(), GeomDataAPI_Point2D::typeId());
96 data()->addAttribute(TANGENT_POINT_ID(), ModelAPI_AttributeRefAttr::typeId());
97 data()->addAttribute(RADIUS_ID(), ModelAPI_AttributeDouble::typeId());
98 data()->addAttribute(ANGLE_ID(), ModelAPI_AttributeDouble::typeId());
100 // set after all to avoid in attributeChanged reference to not existing attributes
101 if (!isInversed->isInitialized())
102 isInversed->setValue(false);
103 anArcType->setValue(ARC_TYPE_CENTER_START_END());
106 void SketchPlugin_Arc::execute()
108 SketchPlugin_Sketch* aSketch = sketch();
109 // result for the arc is set only when all obligatory attributes are initialized,
110 // otherwise AIS object is used to visualize the arc's preview
111 if (aSketch && isFeatureValid()) {
112 bool hasResult = lastResult().get() != NULL;
114 // compute a circle point in 3D view
115 std::shared_ptr<GeomDataAPI_Point2D> aCenterAttr = std::dynamic_pointer_cast<
116 GeomDataAPI_Point2D>(data()->attribute(CENTER_ID()));
117 // compute the arc start point
118 std::shared_ptr<GeomDataAPI_Point2D> aStartAttr = std::dynamic_pointer_cast<
119 GeomDataAPI_Point2D>(data()->attribute(START_ID()));
121 std::shared_ptr<GeomAPI_Pnt> aCenter(aSketch->to3D(aCenterAttr->x(), aCenterAttr->y()));
122 // make a visible point
123 std::shared_ptr<GeomAPI_Shape> aCenterPointShape = GeomAlgoAPI_PointBuilder::vertex(aCenter);
124 std::shared_ptr<ModelAPI_ResultConstruction> aConstr1 = document()->createConstruction(
126 aConstr1->setShape(aCenterPointShape);
127 aConstr1->setIsInHistory(false);
128 setResult(aConstr1, 0);
130 // make a visible circle
131 std::shared_ptr<GeomDataAPI_Dir> aNDir = std::dynamic_pointer_cast<GeomDataAPI_Dir>(
132 aSketch->data()->attribute(SketchPlugin_Sketch::NORM_ID()));
133 std::shared_ptr<GeomAPI_Dir> aNormal = aNDir->dir();
134 std::shared_ptr<GeomAPI_Pnt> aStartPoint(aSketch->to3D(aStartAttr->x(), aStartAttr->y()));
136 // compute and change the arc end point
137 std::shared_ptr<GeomDataAPI_Point2D> anEndAttr = std::dynamic_pointer_cast<
138 GeomDataAPI_Point2D>(data()->attribute(END_ID()));
139 std::shared_ptr<GeomAPI_Circ2d> aCircleForArc(
140 new GeomAPI_Circ2d(aCenterAttr->pnt(), aStartAttr->pnt()));
141 std::shared_ptr<GeomAPI_Pnt2d> aProjection = aCircleForArc->project(anEndAttr->pnt());
142 if (aProjection && anEndAttr->pnt()->distance(aProjection) > tolerance)
143 anEndAttr->setValue(aProjection);
144 std::shared_ptr<GeomAPI_Pnt> aEndPoint(aSketch->to3D(anEndAttr->x(), anEndAttr->y()));
145 AttributeBooleanPtr isInversed =
146 std::dynamic_pointer_cast<ModelAPI_AttributeBoolean>(attribute(INVERSED_ID()));
148 // compute end parameter
149 aCircleForArc->parameter(anEndAttr->pnt(), paramTolerance, myParamBefore);
151 std::shared_ptr<GeomAPI_Shape> aCircleShape;
152 if(!isInversed->value()) {
154 GeomAlgoAPI_EdgeBuilder::lineCircleArc(aCenter, aStartPoint, aEndPoint, aNormal);
157 GeomAlgoAPI_EdgeBuilder::lineCircleArc(aCenter, aEndPoint, aStartPoint, aNormal);
161 std::shared_ptr<ModelAPI_ResultConstruction> aConstr2 = document()->createConstruction(
163 aConstr2->setShape(aCircleShape);
164 aConstr2->setIsInHistory(false);
165 setResult(aConstr2, 1);
170 AISObjectPtr SketchPlugin_Arc::getAISObject(AISObjectPtr thePrevious)
172 SketchPlugin_Sketch* aSketch = sketch();
174 // if the feature is valid, the execute() method should be performed, AIS object is empty
175 if (!isFeatureValid()) {
176 // compute a circle point in 3D view
177 std::shared_ptr<GeomDataAPI_Point2D> aCenterAttr = std::dynamic_pointer_cast<
178 GeomDataAPI_Point2D>(data()->attribute(CENTER_ID()));
180 std::list<std::shared_ptr<GeomAPI_Shape> > aShapes;
181 if (aCenterAttr->isInitialized()) {
182 std::shared_ptr<GeomAPI_Pnt> aCenter(aSketch->to3D(aCenterAttr->x(), aCenterAttr->y()));
184 std::shared_ptr<GeomDataAPI_Point2D> aStartAttr = std::dynamic_pointer_cast<
185 GeomDataAPI_Point2D>(data()->attribute(SketchPlugin_Arc::START_ID()));
186 std::shared_ptr<GeomDataAPI_Point2D> aEndAttr = std::dynamic_pointer_cast<
187 GeomDataAPI_Point2D>(data()->attribute(SketchPlugin_Arc::END_ID()));
188 AttributeStringPtr aTypeAttr = std::dynamic_pointer_cast<ModelAPI_AttributeString>(
189 data()->attribute(ARC_TYPE()));
191 if (aStartAttr->isInitialized()) {
192 // make a visible circle
193 std::shared_ptr<GeomDataAPI_Dir> aNDir = std::dynamic_pointer_cast<GeomDataAPI_Dir>(
194 aSketch->data()->attribute(SketchPlugin_Sketch::NORM_ID()));
195 bool aHasPlane = aNDir && !(aNDir->x() == 0 && aNDir->y() == 0 && aNDir->z() == 0);
197 std::shared_ptr<GeomAPI_Dir> aNormal = aNDir->dir();
198 std::shared_ptr<GeomAPI_Pnt>
199 aStartPoint(aSketch->to3D(aStartAttr->x(), aStartAttr->y()));
200 std::shared_ptr<GeomAPI_Pnt> aEndPoint = aStartPoint;
201 if (aTypeAttr && aTypeAttr->isInitialized() &&
202 aTypeAttr->value() == ARC_TYPE_THREE_POINTS()) {
203 if (aEndAttr->isInitialized() && //
204 aEndAttr->pnt()->distance(aStartAttr->pnt()) > tolerance) {
205 aEndPoint = aSketch->to3D(aEndAttr->x(), aEndAttr->y());
206 std::shared_ptr<GeomDataAPI_Point2D> aPassedAttr =
207 std::dynamic_pointer_cast<GeomDataAPI_Point2D>(
208 data()->attribute(PASSED_POINT_ID()));
209 if (!aPassedAttr->isInitialized()) {
210 // calculate the appropriate center for the presentation
211 // check that center is bad for the current start and end and must be recomputed
212 std::shared_ptr<GeomAPI_Circ2d> aCircleForArc(new GeomAPI_Circ2d(
213 aCenterAttr->pnt(), aStartAttr->pnt()));
214 std::shared_ptr<GeomAPI_Pnt2d> aProjection =
215 aCircleForArc->project(aEndAttr->pnt());
216 if (!aProjection.get() || aEndAttr->pnt()->distance(aProjection) > tolerance) {
217 std::shared_ptr<GeomAPI_XY> aDir =
218 aEndAttr->pnt()->xy()->decreased(aStartAttr->pnt()->xy())->multiplied(0.5);
219 double x = aDir->x();
220 double y = aDir->y();
223 std::shared_ptr<GeomAPI_XY> aCenterXY = aStartAttr->pnt()->xy()->added(aDir);
224 aCenter = aSketch->to3D(aCenterXY->x(), aCenterXY->y());
227 } else { // issue #1695: don't display circle if initialized only start point
228 return AISObjectPtr();
231 AttributeBooleanPtr isInversed =
232 std::dynamic_pointer_cast<ModelAPI_AttributeBoolean>(attribute(INVERSED_ID()));
234 std::shared_ptr<GeomAPI_Shape> aCircleShape =
235 (isInversed->isInitialized() && isInversed->value()) ?
236 GeomAlgoAPI_EdgeBuilder::lineCircleArc(aCenter, aEndPoint, aStartPoint, aNormal) :
237 GeomAlgoAPI_EdgeBuilder::lineCircleArc(aCenter, aStartPoint, aEndPoint, aNormal);
240 aShapes.push_back(aCircleShape);
243 // make a visible point
244 std::shared_ptr<GeomAPI_Shape> aCenterPointShape =
245 GeomAlgoAPI_PointBuilder::vertex(aCenter);
246 aShapes.push_back(aCenterPointShape);
248 if (!aShapes.empty()) {
249 std::shared_ptr<GeomAPI_Shape> aCompound = GeomAlgoAPI_CompoundBuilder::compound(aShapes);
250 AISObjectPtr anAIS = thePrevious;
252 anAIS = AISObjectPtr(new GeomAPI_AISObject);
253 anAIS->createShape(aCompound);
254 double aDeflection = Config_PropManager::real("Visualization", "construction_deflection",
255 ModelAPI_ResultConstruction::DEFAULT_DEFLECTION());
256 anAIS->setDeflection(aDeflection);
262 return AISObjectPtr();
265 void SketchPlugin_Arc::move(double theDeltaX, double theDeltaY)
267 std::shared_ptr<ModelAPI_Data> aData = data();
268 if (!aData->isValid())
271 aData->blockSendAttributeUpdated(true);
273 myStartUpdate = true;
275 std::shared_ptr<GeomDataAPI_Point2D> aPoint2 = std::dynamic_pointer_cast<GeomDataAPI_Point2D>(
276 aData->attribute(SketchPlugin_Arc::START_ID()));
277 if (aPoint2->isInitialized())
278 aPoint2->move(theDeltaX, theDeltaY);
280 std::shared_ptr<GeomDataAPI_Point2D> aPoint3 = std::dynamic_pointer_cast<GeomDataAPI_Point2D>(
281 aData->attribute(SketchPlugin_Arc::END_ID()));
282 if (aPoint3->isInitialized())
283 aPoint3->move(theDeltaX, theDeltaY);
284 myStartUpdate = false;
287 std::shared_ptr<GeomDataAPI_Point2D> aPoint1 = std::dynamic_pointer_cast<GeomDataAPI_Point2D>(
288 aData->attribute(SketchPlugin_Arc::CENTER_ID()));
289 if (aPoint1->isInitialized())
290 aPoint1->move(theDeltaX, theDeltaY);
292 std::shared_ptr<GeomDataAPI_Point2D> aPassedPoint =
293 std::dynamic_pointer_cast<GeomDataAPI_Point2D>(aData->attribute(PASSED_POINT_ID()));
294 if (aPassedPoint->isInitialized())
295 aPassedPoint->move(theDeltaX, theDeltaY);
296 aData->blockSendAttributeUpdated(false);
299 bool SketchPlugin_Arc::isFixed() {
300 return data()->selection(EXTERNAL_ID())->context().get() != NULL;
303 bool SketchPlugin_Arc::isFeatureValid()
305 AttributeStringPtr anArcTypeAttr =
306 std::dynamic_pointer_cast<ModelAPI_AttributeString>(data()->attribute(ARC_TYPE()));
309 std::string anArcType = anArcTypeAttr->value();
311 std::shared_ptr<GeomDataAPI_Point2D> aCenterAttr = std::dynamic_pointer_cast<
312 GeomDataAPI_Point2D>(data()->attribute(SketchPlugin_Arc::CENTER_ID()));
313 std::shared_ptr<GeomDataAPI_Point2D> aStartAttr = std::dynamic_pointer_cast<
314 GeomDataAPI_Point2D>(data()->attribute(SketchPlugin_Arc::START_ID()));
315 std::shared_ptr<GeomDataAPI_Point2D> anEndAttr = std::dynamic_pointer_cast<
316 GeomDataAPI_Point2D>(data()->attribute(SketchPlugin_Arc::END_ID()));
317 std::shared_ptr<GeomDataAPI_Point2D> aPassedAttr = std::dynamic_pointer_cast<
318 GeomDataAPI_Point2D>(data()->attribute(PASSED_POINT_ID()));
320 bool isValid = false;
321 if (anArcType == ARC_TYPE_THREE_POINTS())
322 isValid = aStartAttr->isInitialized() &&
323 anEndAttr->isInitialized() && aPassedAttr->isInitialized();
325 isValid = aCenterAttr->isInitialized() &&
326 aStartAttr->isInitialized() && anEndAttr->isInitialized();
331 static inline void adjustPeriod(double& theParam)
333 static const double PERIOD = 2.0 * PI;
334 while (theParam < 0.0) theParam += PERIOD;
335 while (theParam >= PERIOD) theParam -= PERIOD;
338 void SketchPlugin_Arc::attributeChanged(const std::string& theID)
340 std::shared_ptr<GeomDataAPI_Point2D> aCenterAttr = std::dynamic_pointer_cast<
341 GeomDataAPI_Point2D>(data()->attribute(CENTER_ID()));
342 std::shared_ptr<GeomDataAPI_Point2D> aStartAttr = std::dynamic_pointer_cast<
343 GeomDataAPI_Point2D>(data()->attribute(START_ID()));
344 std::shared_ptr<GeomDataAPI_Point2D> anEndAttr = std::dynamic_pointer_cast<
345 GeomDataAPI_Point2D>(data()->attribute(END_ID()));
346 // the second condition for unability to move external segments anywhere
347 if (theID == EXTERNAL_ID() || isFixed()) {
348 std::shared_ptr<GeomAPI_Shape> aSelection = data()->selection(EXTERNAL_ID())->value();
350 // empty shape in selection shows that the shape is equal to context
351 ResultPtr anExtRes = selection(EXTERNAL_ID())->context();
353 aSelection = anExtRes->shape();
355 // update arguments due to the selection value
356 if (aSelection && !aSelection->isNull() && aSelection->isEdge()) {
357 std::shared_ptr<GeomAPI_Edge> anEdge( new GeomAPI_Edge(aSelection));
358 std::shared_ptr<GeomAPI_Circ> aCirc = anEdge->circle();
360 aStartAttr->setValue(sketch()->to2D(anEdge->firstPoint()));
361 anEndAttr->setValue(sketch()->to2D(anEdge->lastPoint()));
362 aCenterAttr->setValue(sketch()->to2D(aCirc->center()));
364 data()->real(RADIUS_ID())->setValue(aCirc->radius());
365 double aStartAngle, aEndAngle;
366 anEdge->getRange(aStartAngle, aEndAngle);
367 data()->real(ANGLE_ID())->setValue(aEndAngle - aStartAngle);
368 myParamBefore = aEndAngle;
369 adjustPeriod(myParamBefore);
374 AttributeStringPtr aTypeAttr =
375 std::dynamic_pointer_cast<ModelAPI_AttributeString>(attribute(ARC_TYPE()));
377 // this is before others since here end attribute may be changed, but with the special behavior
378 if (aTypeAttr->value() == ARC_TYPE_TANGENT() &&
379 (theID == TANGENT_POINT_ID() || theID == END_ID())) {
380 SketchPlugin_Sketch* aSketch = sketch();
381 AttributeRefAttrPtr aTangPtAttr = std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(
382 data()->attribute(TANGENT_POINT_ID()));
384 if (aTangPtAttr->isInitialized() && anEndAttr->isInitialized()) {
385 // compute orthogonal direction
386 std::shared_ptr<GeomAPI_Dir2d> anOrthoDir;
387 std::shared_ptr<GeomDataAPI_Point2D> aTangentPoint =
388 std::dynamic_pointer_cast<GeomDataAPI_Point2D>(aTangPtAttr->attr());
389 std::shared_ptr<GeomAPI_Pnt2d> aTangPnt2d = aTangentPoint->pnt();
390 if (aTangPnt2d->isEqual(anEndAttr->pnt()))
392 FeaturePtr aTangFeature = ModelAPI_Feature::feature(aTangentPoint->owner());
393 std::shared_ptr<GeomAPI_Edge> aTangEdge = std::dynamic_pointer_cast<GeomAPI_Edge>(
394 aTangFeature->lastResult()->shape());
395 if (aTangEdge->isLine()) {
396 std::shared_ptr<GeomAPI_Dir> aDir = aTangEdge->line()->direction();
397 std::shared_ptr<GeomAPI_Pnt> aPnt(new GeomAPI_Pnt(aDir->x(), aDir->y(), aDir->z()));
398 std::shared_ptr<GeomAPI_Pnt2d> aPnt2d = aSketch->to2D(aPnt);
399 anOrthoDir = std::shared_ptr<GeomAPI_Dir2d>(new GeomAPI_Dir2d(-aPnt2d->y(), aPnt2d->x()));
401 else if (aTangEdge->isArc()) {
402 std::shared_ptr<GeomAPI_Pnt> aCenter = aTangEdge->circle()->center();
403 std::shared_ptr<GeomAPI_Pnt2d> aCenter2d = aSketch->to2D(aCenter);
404 anOrthoDir = std::shared_ptr<GeomAPI_Dir2d>(
405 new GeomAPI_Dir2d(aTangPnt2d->xy()->decreased(aCenter2d->xy())));
408 // compute parameters of the middle perpendicular
409 std::shared_ptr<GeomAPI_XY> aEndPntCoord = anEndAttr->pnt()->xy();
410 std::shared_ptr<GeomAPI_XY> aTempDir = aEndPntCoord->decreased(aTangPnt2d->xy());
411 std::shared_ptr<GeomAPI_Dir2d> aMidDir(new GeomAPI_Dir2d(-aTempDir->y(), aTempDir->x()));
412 std::shared_ptr<GeomAPI_Pnt2d> aMidPnt(
413 new GeomAPI_Pnt2d(aEndPntCoord->added(aTangPnt2d->xy())->multiplied(0.5)));
415 // compute center of arc by calculating intersection of
416 // orthogonal line and middle perpendicular
417 std::shared_ptr<GeomAPI_Lin2d> anOrthoLine(new GeomAPI_Lin2d(aTangPnt2d, anOrthoDir));
418 std::shared_ptr<GeomAPI_Lin2d> aMiddleLine(new GeomAPI_Lin2d(aMidPnt, aMidDir));
419 std::shared_ptr<GeomAPI_Pnt2d> aCenter = anOrthoLine->intersect(aMiddleLine);
421 data()->blockSendAttributeUpdated(true);
422 aCenterAttr->setValue(aCenter);
423 aStartAttr->setValue(aTangPnt2d);
424 data()->blockSendAttributeUpdated(false);
427 tangencyArcConstraints();
432 // if changed the base attributes, update all other (is necessary) without recursion
433 if (theID == CENTER_ID() || theID == START_ID() || theID == END_ID() || theID == ARC_TYPE()) {
434 if (!isFeatureValid())
436 std::shared_ptr<GeomAPI_Pnt2d> aCenter = aCenterAttr->pnt();
437 std::shared_ptr<GeomAPI_Pnt2d> aStart = aStartAttr->pnt();
438 std::shared_ptr<GeomAPI_Pnt2d> anEnd = anEndAttr->pnt();
439 double aRadius = aCenter->distance(aStart);
440 if (aRadius < tolerance)
442 std::shared_ptr<GeomAPI_Circ2d> aCircleForArc(new GeomAPI_Circ2d(aCenter, aStart));
444 data()->blockSendAttributeUpdated(true);
445 if (theID == END_ID() && isStable()) {
446 // The arc is under construction, so its end point projected
447 // on the circle formed by center and start points
448 std::shared_ptr<GeomAPI_Pnt2d> aProjection = aCircleForArc->project(anEnd);
449 if (aProjection && anEnd->distance(aProjection) > tolerance) {
450 anEndAttr->setValue(aProjection);
454 // update all other attributes due to the base attributes values
455 if (aTypeAttr->value() == ARC_TYPE_THREE_POINTS()) {
456 // update passed point due to start, end and center
457 if (aCenter->distance(aStart) > tolerance && aCenter->distance(anEnd) > tolerance) {
458 // project passed point t othe circle
459 std::shared_ptr<GeomDataAPI_Point2D> aPassedAttr =
460 std::dynamic_pointer_cast<GeomDataAPI_Point2D>(data()->attribute(PASSED_POINT_ID()));
461 if (aPassedAttr->isInitialized()) {
462 std::shared_ptr<GeomAPI_Pnt2d> aProjection = aCircleForArc->project(aPassedAttr->pnt());
463 if (aProjection && aPassedAttr->pnt()->distance(aProjection) > tolerance) {
464 aPassedAttr->setValue(aProjection);
466 } else { // initialize it by some middle - value
467 std::shared_ptr<GeomAPI_Dir2d> aStartDir(new GeomAPI_Dir2d(
468 aStart->xy()->decreased(aCenter->xy())));
469 std::shared_ptr<GeomAPI_Dir2d> aEndDir(new GeomAPI_Dir2d(
470 anEnd->xy()->decreased(aCenter->xy())));
471 std::shared_ptr<GeomAPI_XY> aMidDirXY = aStartDir->xy()->added(aEndDir->xy());
472 if (aMidDirXY->dot(aMidDirXY) < tolerance * tolerance) {
473 // start and end directions are opposite, so middle direction will be orthogonal
474 aMidDirXY->setX(-aStartDir->y());
475 aMidDirXY->setY(aStartDir->x());
477 std::shared_ptr<GeomAPI_Dir2d> aMidDir(new GeomAPI_Dir2d(aMidDirXY));
478 if ((aStartDir->cross(aMidDir) > 0) ^ !isReversed())
480 std::shared_ptr<GeomAPI_XY> aPassedPnt =
481 aCenter->xy()->added(aMidDir->xy()->multiplied(aCenter->distance(aStart)));
482 std::dynamic_pointer_cast<GeomDataAPI_Point2D>(data()->attribute(PASSED_POINT_ID()))->
483 setValue(aPassedPnt->x(), aPassedPnt->y());
487 // update radius and angle
488 AttributeDoublePtr aRadiusAttr = std::dynamic_pointer_cast<ModelAPI_AttributeDouble>(
489 data()->attribute(RADIUS_ID()));
490 aRadiusAttr->setValue(aRadius);
491 AttributeDoublePtr anAngleAttr = std::dynamic_pointer_cast<ModelAPI_AttributeDouble>(
492 data()->attribute(ANGLE_ID()));
493 std::shared_ptr<GeomAPI_Circ2d> aCircle(new GeomAPI_Circ2d(aCenter, aStart));
494 double aStartParam, aEndParam;
495 aCircle->parameter(aStart, paramTolerance, aStartParam);
496 aCircle->parameter(anEnd, paramTolerance, aEndParam);
497 adjustPeriod(aStartParam);
498 adjustPeriod(aEndParam);
499 // use the passed point for the angle calculation
500 if (aTypeAttr->value() == ARC_TYPE_THREE_POINTS()) {
501 std::shared_ptr<GeomDataAPI_Point2D> aPassedAttr =
502 std::dynamic_pointer_cast<GeomDataAPI_Point2D>(data()->attribute(PASSED_POINT_ID()));
504 aCircle->parameter(aPassedAttr->pnt(), paramTolerance, aPassedParam);
505 adjustPeriod(aPassedParam);
506 double aNewAngle = aPassedParam >= aStartParam && aPassedParam <= aEndParam ?
507 ((aEndParam - aStartParam) * 180.0 / PI) :
508 ((aEndParam - aStartParam - 2.0 * PI) * 180.0 / PI);
509 if (!anAngleAttr->isInitialized() || fabs(aNewAngle - anAngleAttr->value()) > tolerance)
510 anAngleAttr->setValue(aNewAngle);
512 double aNewAngle = (aEndParam - aStartParam) * 180.0 / PI;
513 if (!anAngleAttr->isInitialized() || fabs(aNewAngle - anAngleAttr->value()) > tolerance)
514 anAngleAttr->setValue(aNewAngle);
517 // calculate arc aperture and change the Inversed flag if needed
518 AttributeBooleanPtr isInversed =
519 std::dynamic_pointer_cast<ModelAPI_AttributeBoolean>(attribute(INVERSED_ID()));
520 double aParameterNew = aEndParam - aStartParam;
521 if (0 <= myParamBefore && myParamBefore <= PI / 2.0 &&
522 PI * 1.5 <= aParameterNew && aParameterNew <= PI * 2.0)
523 isInversed->setValue(true);
524 else if (PI * 1.5 <= myParamBefore && myParamBefore <= PI * 2.0 &&
525 0 <= aParameterNew && aParameterNew <= PI / 2.0)
526 isInversed->setValue(false);
527 myParamBefore = aParameterNew;
529 // do not need to inform that other parameters were changed in this basis mode: these arguments
531 data()->blockSendAttributeUpdated(false, false);
535 if (theID == PASSED_POINT_ID()) {
536 data()->blockSendAttributeUpdated(true);
538 std::shared_ptr<GeomAPI_Pnt2d> aPoints[3];
539 int aNbInitialized = 0;
540 for (int i = 1; i <= 3; ++i) {
541 std::shared_ptr<GeomDataAPI_Point2D> aCurPnt =
542 std::dynamic_pointer_cast<GeomDataAPI_Point2D>(attribute(POINT_ID(i)));
543 if (aCurPnt->isInitialized())
544 aPoints[aNbInitialized++] = aCurPnt->pnt();
547 if (aNbInitialized == 3) {
548 std::shared_ptr<GeomAPI_Circ2d> aCircle(
549 new GeomAPI_Circ2d(aPoints[0], aPoints[1], aPoints[2]));
551 std::shared_ptr<GeomAPI_Pnt2d> aCenter = aCircle->center();
553 aCenterAttr->setValue(aCenter);
556 data()->blockSendAttributeUpdated(false);
560 if (theID == RADIUS_ID()) {
561 if (!aStartAttr->isInitialized() || !anEndAttr->isInitialized() ||
562 !aCenterAttr->isInitialized())
564 // move center and passed point
565 std::shared_ptr<GeomAPI_Pnt2d> aStart = aStartAttr->pnt();
566 std::shared_ptr<GeomAPI_Pnt2d> anEnd = anEndAttr->pnt();
567 std::shared_ptr<GeomAPI_Pnt2d> aCenter = aCenterAttr->pnt();
568 if (aStart->distance(aCenter) < tolerance || anEnd->distance(aCenter) < tolerance)
570 AttributeDoublePtr aRadiusAttr = std::dynamic_pointer_cast<ModelAPI_AttributeDouble>(
571 data()->attribute(RADIUS_ID()));
572 double aRadius = aRadiusAttr->value();
574 data()->blockSendAttributeUpdated(true);
575 std::shared_ptr<GeomAPI_Dir2d>
576 aStartDir(new GeomAPI_Dir2d(aStart->xy()->decreased(aCenter->xy())));
577 std::shared_ptr<GeomAPI_XY>
578 aNewStart = aStartDir->xy()->multiplied(aRadius)->added(aCenter->xy());
579 aStartAttr->setValue(aNewStart->x(), aNewStart->y());
580 std::shared_ptr<GeomAPI_Dir2d>
581 anEndDir(new GeomAPI_Dir2d(anEnd->xy()->decreased(aCenter->xy())));
582 std::shared_ptr<GeomAPI_XY>
583 aNewEnd = anEndDir->xy()->multiplied(aRadius)->added(aCenter->xy());
584 anEndAttr->setValue(aNewEnd->x(), aNewEnd->y());
585 data()->blockSendAttributeUpdated(false);
588 if (theID == ANGLE_ID()) {
589 if (!aStartAttr->isInitialized() || !aCenterAttr->isInitialized())
591 AttributeDoublePtr anAngleAttr = std::dynamic_pointer_cast<ModelAPI_AttributeDouble>(
592 data()->attribute(ANGLE_ID()));
593 data()->blockSendAttributeUpdated(true);
594 // move end point and passed point
595 std::shared_ptr<GeomAPI_XY> aCenter = aCenterAttr->pnt()->xy();
596 double anAngle = anAngleAttr->value() * PI / 180.0;
597 double sinA = sin(anAngle);
598 double cosA = cos(anAngle);
599 std::shared_ptr<GeomAPI_XY> aStartDir = aStartAttr->pnt()->xy()->decreased(aCenter);
600 std::shared_ptr<GeomAPI_XY> aDir(new GeomAPI_XY(
601 aStartDir->x() * cosA - aStartDir->y() * sinA,
602 aStartDir->x() * sinA + aStartDir->y() * cosA));
603 anEndAttr->setValue(aCenter->x() + aDir->x(), aCenter->y() + aDir->y());
604 data()->blockSendAttributeUpdated(false);
609 void SketchPlugin_Arc::setReversed(bool isReversed)
611 std::dynamic_pointer_cast<ModelAPI_AttributeBoolean>(
612 attribute(INVERSED_ID()))->setValue(isReversed);
616 bool SketchPlugin_Arc::isReversed()
618 return std::dynamic_pointer_cast<ModelAPI_AttributeBoolean>(attribute(INVERSED_ID()))->value();
621 void SketchPlugin_Arc::tangencyArcConstraints()
626 std::shared_ptr<GeomDataAPI_Point2D> aStartAttr =
627 std::dynamic_pointer_cast<GeomDataAPI_Point2D>(attribute(START_ID()));
628 AttributeRefAttrPtr aTangPtAttr = std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(
629 attribute(TANGENT_POINT_ID()));
630 if (!aTangPtAttr->attr())
633 FeaturePtr aFeature = ModelAPI_Feature::feature(aStartAttr->owner());
634 ObjectPtr aThisArc = aFeature->lastResult();
635 aFeature = ModelAPI_Feature::feature(aTangPtAttr->attr()->owner());
636 ObjectPtr aTangFeature = aFeature->lastResult();
638 // trying to find constraints to fix the tangency of the arc
639 std::set<FeaturePtr> aCoincidence;
640 std::set<FeaturePtr> aTangency;
642 AttributeRefAttrPtr aRefAttrA, aRefAttrB;
643 std::set<AttributePtr> aRefs = data()->refsToMe();
644 const std::set<AttributePtr>& aRefsToResult = lastResult()->data()->refsToMe();
645 aRefs.insert(aRefsToResult.begin(), aRefsToResult.end());
646 std::set<AttributePtr>::const_iterator aRefIt = aRefs.begin();
647 for (; aRefIt != aRefs.end(); ++aRefIt) {
648 FeaturePtr aConstrFeature = ModelAPI_Feature::feature((*aRefIt)->owner());
649 if (aConstrFeature->getKind() == SketchPlugin_ConstraintCoincidence::ID()) {
650 aRefAttrA = std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(
651 aConstrFeature->attribute(SketchPlugin_Constraint::ENTITY_A()));
652 aRefAttrB = std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(
653 aConstrFeature->attribute(SketchPlugin_Constraint::ENTITY_B()));
654 if ((aRefAttrA && aRefAttrA->attr() == aStartAttr) ||
655 (aRefAttrB && aRefAttrB->attr() == aStartAttr))
656 aCoincidence.insert(aConstrFeature);
658 else if (aConstrFeature->getKind() == SketchPlugin_ConstraintTangent::ID()) {
659 aRefAttrA = std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(
660 aConstrFeature->attribute(SketchPlugin_Constraint::ENTITY_A()));
661 aRefAttrB = std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(
662 aConstrFeature->attribute(SketchPlugin_Constraint::ENTITY_B()));
663 if ((aRefAttrA && aRefAttrA->object() == aThisArc) ||
664 (aRefAttrB && aRefAttrB->object() == aThisArc))
665 aTangency.insert(aConstrFeature);
668 // search applicable pair of constraints
669 bool isFound = false;
670 FeaturePtr aPrevCoincidence, aPrevTangency;
671 std::set<FeaturePtr>::const_iterator aCIt, aTIt;
672 for (aCIt = aCoincidence.begin(); aCIt != aCoincidence.end() && !isFound; ++aCIt) {
673 aRefAttrA = std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(
674 (*aCIt)->attribute(SketchPlugin_Constraint::ENTITY_A()));
675 aRefAttrB = std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(
676 (*aCIt)->attribute(SketchPlugin_Constraint::ENTITY_B()));
677 AttributePtr anOtherPoint =
678 aRefAttrA->attr() == aStartAttr ? aRefAttrB->attr() : aRefAttrA->attr();
679 for (aTIt = aTangency.begin(); aTIt != aTangency.end() && !isFound; ++aTIt) {
680 aRefAttrA = std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(
681 (*aTIt)->attribute(SketchPlugin_Constraint::ENTITY_A()));
682 aRefAttrB = std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(
683 (*aTIt)->attribute(SketchPlugin_Constraint::ENTITY_B()));
684 ObjectPtr anOtherObject = aRefAttrA->object() == aThisArc ?
685 aRefAttrB->object() : aRefAttrA->object();
686 FeaturePtr anOtherFeature = ModelAPI_Feature::feature(anOtherObject);
687 if (anOtherPoint->owner() == anOtherFeature) {
689 aPrevCoincidence = *aCIt;
690 aPrevTangency = *aTIt;
696 // update previous constraints
697 aRefAttrA = std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(
698 aPrevCoincidence->attribute(SketchPlugin_Constraint::ENTITY_A()));
699 aRefAttrB = std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(
700 aPrevCoincidence->attribute(SketchPlugin_Constraint::ENTITY_B()));
701 if (aRefAttrA->attr() == aStartAttr)
702 aRefAttrB->setAttr(aTangPtAttr->attr());
704 aRefAttrA->setAttr(aTangPtAttr->attr());
706 aRefAttrA = std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(
707 aPrevTangency->attribute(SketchPlugin_Constraint::ENTITY_A()));
708 aRefAttrB = std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(
709 aPrevTangency->attribute(SketchPlugin_Constraint::ENTITY_B()));
710 if (aRefAttrA->object() == aThisArc)
711 aRefAttrB->setObject(aTangFeature);
713 aRefAttrA->setObject(aTangFeature);
715 // Wait all constraints being removed, then send update events
716 static Events_ID aDeleteEvent = Events_Loop::eventByName(EVENT_OBJECT_DELETED);
717 bool isDeleteFlushed = Events_Loop::loop()->isFlushed(aDeleteEvent);
719 Events_Loop::loop()->setFlushed(aDeleteEvent, false);
720 // Remove all obtained constraints which use current arc, because
721 // there is no information which of them were used to build tangency arc.
722 DocumentPtr aDoc = sketch()->document();
723 std::set<FeaturePtr> aFeaturesToBeRemoved;
724 for (aCIt = aCoincidence.begin(); aCIt != aCoincidence.end(); ++aCIt)
725 aFeaturesToBeRemoved.insert(*aCIt);
726 for (aTIt = aTangency.begin(); aTIt != aTangency.end(); ++aTIt)
727 aFeaturesToBeRemoved.insert(*aTIt);
728 ModelAPI_Tools::removeFeaturesAndReferences(aFeaturesToBeRemoved);
729 // Send events to update the sub-features by the solver.
731 Events_Loop::loop()->setFlushed(aDeleteEvent, true);
733 Events_Loop::loop()->flush(aDeleteEvent);
735 // Wait all constraints being created, then send update events
736 static Events_ID aCreateEvent = Events_Loop::eventByName(EVENT_OBJECT_CREATED);
737 bool isCreateFlushed = Events_Loop::loop()->isFlushed(aCreateEvent);
739 Events_Loop::loop()->setFlushed(aCreateEvent, false);
741 // Create new constraints
742 FeaturePtr aConstraint = sketch()->addFeature(SketchPlugin_ConstraintCoincidence::ID());
743 aRefAttrA = std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(
744 aConstraint->attribute(SketchPlugin_Constraint::ENTITY_A()));
745 aRefAttrB = std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(
746 aConstraint->attribute(SketchPlugin_Constraint::ENTITY_B()));
747 aRefAttrA->setAttr(aStartAttr);
748 aRefAttrB->setAttr(aTangPtAttr->attr());
749 aConstraint->execute();
750 ModelAPI_EventCreator::get()->sendUpdated(aConstraint, aCreateEvent);
752 aConstraint = sketch()->addFeature(SketchPlugin_ConstraintTangent::ID());
753 aRefAttrA = std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(
754 aConstraint->attribute(SketchPlugin_Constraint::ENTITY_A()));
755 aRefAttrB = std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(
756 aConstraint->attribute(SketchPlugin_Constraint::ENTITY_B()));
757 aRefAttrA->setObject(aThisArc);
758 aRefAttrB->setObject(aTangFeature);
759 aConstraint->execute();
760 ModelAPI_EventCreator::get()->sendUpdated(aConstraint, aCreateEvent);
762 // Send events to update the sub-features by the solver.
764 Events_Loop::loop()->setFlushed(aCreateEvent, true);
766 Events_Loop::loop()->flush(aCreateEvent);