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);
168 if (!hasResult && string(ARC_TYPE())->value() == ARC_TYPE_TANGENT()) {
169 // constraints for tangent arc have not been prepared yet, do them
170 tangencyArcConstraints();
175 AISObjectPtr SketchPlugin_Arc::getAISObject(AISObjectPtr thePrevious)
177 SketchPlugin_Sketch* aSketch = sketch();
179 // if the feature is valid, the execute() method should be performed, AIS object is empty
180 if (!isFeatureValid()) {
181 // compute a circle point in 3D view
182 std::shared_ptr<GeomDataAPI_Point2D> aCenterAttr = std::dynamic_pointer_cast<
183 GeomDataAPI_Point2D>(data()->attribute(CENTER_ID()));
185 std::list<std::shared_ptr<GeomAPI_Shape> > aShapes;
186 if (aCenterAttr->isInitialized()) {
187 std::shared_ptr<GeomAPI_Pnt> aCenter(aSketch->to3D(aCenterAttr->x(), aCenterAttr->y()));
189 std::shared_ptr<GeomDataAPI_Point2D> aStartAttr = std::dynamic_pointer_cast<
190 GeomDataAPI_Point2D>(data()->attribute(SketchPlugin_Arc::START_ID()));
191 std::shared_ptr<GeomDataAPI_Point2D> aEndAttr = std::dynamic_pointer_cast<
192 GeomDataAPI_Point2D>(data()->attribute(SketchPlugin_Arc::END_ID()));
193 AttributeStringPtr aTypeAttr = std::dynamic_pointer_cast<ModelAPI_AttributeString>(
194 data()->attribute(ARC_TYPE()));
196 if (aStartAttr->isInitialized()) {
197 // make a visible circle
198 std::shared_ptr<GeomDataAPI_Dir> aNDir = std::dynamic_pointer_cast<GeomDataAPI_Dir>(
199 aSketch->data()->attribute(SketchPlugin_Sketch::NORM_ID()));
200 bool aHasPlane = aNDir && !(aNDir->x() == 0 && aNDir->y() == 0 && aNDir->z() == 0);
202 std::shared_ptr<GeomAPI_Dir> aNormal = aNDir->dir();
203 std::shared_ptr<GeomAPI_Pnt>
204 aStartPoint(aSketch->to3D(aStartAttr->x(), aStartAttr->y()));
205 std::shared_ptr<GeomAPI_Pnt> aEndPoint = aStartPoint;
206 if (aTypeAttr && aTypeAttr->isInitialized() &&
207 aTypeAttr->value() == ARC_TYPE_THREE_POINTS()) {
208 if (aEndAttr->isInitialized() && //
209 aEndAttr->pnt()->distance(aStartAttr->pnt()) > tolerance) {
210 aEndPoint = aSketch->to3D(aEndAttr->x(), aEndAttr->y());
211 std::shared_ptr<GeomDataAPI_Point2D> aPassedAttr =
212 std::dynamic_pointer_cast<GeomDataAPI_Point2D>(
213 data()->attribute(PASSED_POINT_ID()));
214 if (!aPassedAttr->isInitialized()) {
215 // calculate the appropriate center for the presentation
216 // check that center is bad for the current start and end and must be recomputed
217 std::shared_ptr<GeomAPI_Circ2d> aCircleForArc(new GeomAPI_Circ2d(
218 aCenterAttr->pnt(), aStartAttr->pnt()));
219 std::shared_ptr<GeomAPI_Pnt2d> aProjection =
220 aCircleForArc->project(aEndAttr->pnt());
221 if (!aProjection.get() || aEndAttr->pnt()->distance(aProjection) > tolerance) {
222 std::shared_ptr<GeomAPI_XY> aDir =
223 aEndAttr->pnt()->xy()->decreased(aStartAttr->pnt()->xy())->multiplied(0.5);
224 double x = aDir->x();
225 double y = aDir->y();
228 std::shared_ptr<GeomAPI_XY> aCenterXY = aStartAttr->pnt()->xy()->added(aDir);
229 aCenter = aSketch->to3D(aCenterXY->x(), aCenterXY->y());
232 } else { // issue #1695: don't display circle if initialized only start point
233 return AISObjectPtr();
236 AttributeBooleanPtr isInversed =
237 std::dynamic_pointer_cast<ModelAPI_AttributeBoolean>(attribute(INVERSED_ID()));
239 std::shared_ptr<GeomAPI_Shape> aCircleShape =
240 (isInversed->isInitialized() && isInversed->value()) ?
241 GeomAlgoAPI_EdgeBuilder::lineCircleArc(aCenter, aEndPoint, aStartPoint, aNormal) :
242 GeomAlgoAPI_EdgeBuilder::lineCircleArc(aCenter, aStartPoint, aEndPoint, aNormal);
245 aShapes.push_back(aCircleShape);
248 // make a visible point
249 std::shared_ptr<GeomAPI_Shape> aCenterPointShape =
250 GeomAlgoAPI_PointBuilder::vertex(aCenter);
251 aShapes.push_back(aCenterPointShape);
253 if (!aShapes.empty()) {
254 std::shared_ptr<GeomAPI_Shape> aCompound = GeomAlgoAPI_CompoundBuilder::compound(aShapes);
255 AISObjectPtr anAIS = thePrevious;
257 anAIS = AISObjectPtr(new GeomAPI_AISObject);
258 anAIS->createShape(aCompound);
259 double aDeflection = Config_PropManager::real("Visualization", "construction_deflection",
260 ModelAPI_ResultConstruction::DEFAULT_DEFLECTION());
261 anAIS->setDeflection(aDeflection);
267 return AISObjectPtr();
270 void SketchPlugin_Arc::move(double theDeltaX, double theDeltaY)
272 std::shared_ptr<ModelAPI_Data> aData = data();
273 if (!aData->isValid())
276 bool aWasBlocked = aData->blockSendAttributeUpdated(true);
278 myStartUpdate = true;
280 std::shared_ptr<GeomDataAPI_Point2D> aPoint2 = std::dynamic_pointer_cast<GeomDataAPI_Point2D>(
281 aData->attribute(SketchPlugin_Arc::START_ID()));
282 if (aPoint2->isInitialized())
283 aPoint2->move(theDeltaX, theDeltaY);
285 std::shared_ptr<GeomDataAPI_Point2D> aPoint3 = std::dynamic_pointer_cast<GeomDataAPI_Point2D>(
286 aData->attribute(SketchPlugin_Arc::END_ID()));
287 if (aPoint3->isInitialized())
288 aPoint3->move(theDeltaX, theDeltaY);
289 myStartUpdate = false;
292 std::shared_ptr<GeomDataAPI_Point2D> aPoint1 = std::dynamic_pointer_cast<GeomDataAPI_Point2D>(
293 aData->attribute(SketchPlugin_Arc::CENTER_ID()));
294 if (aPoint1->isInitialized())
295 aPoint1->move(theDeltaX, theDeltaY);
297 std::shared_ptr<GeomDataAPI_Point2D> aPassedPoint =
298 std::dynamic_pointer_cast<GeomDataAPI_Point2D>(aData->attribute(PASSED_POINT_ID()));
299 if (aPassedPoint->isInitialized())
300 aPassedPoint->move(theDeltaX, theDeltaY);
301 aData->blockSendAttributeUpdated(aWasBlocked);
304 bool SketchPlugin_Arc::isFixed() {
305 return data()->selection(EXTERNAL_ID())->context().get() != NULL;
308 bool SketchPlugin_Arc::isFeatureValid()
310 AttributeStringPtr anArcTypeAttr =
311 std::dynamic_pointer_cast<ModelAPI_AttributeString>(data()->attribute(ARC_TYPE()));
314 std::string anArcType = anArcTypeAttr->value();
316 std::shared_ptr<GeomDataAPI_Point2D> aCenterAttr = std::dynamic_pointer_cast<
317 GeomDataAPI_Point2D>(data()->attribute(SketchPlugin_Arc::CENTER_ID()));
318 std::shared_ptr<GeomDataAPI_Point2D> aStartAttr = std::dynamic_pointer_cast<
319 GeomDataAPI_Point2D>(data()->attribute(SketchPlugin_Arc::START_ID()));
320 std::shared_ptr<GeomDataAPI_Point2D> anEndAttr = std::dynamic_pointer_cast<
321 GeomDataAPI_Point2D>(data()->attribute(SketchPlugin_Arc::END_ID()));
322 std::shared_ptr<GeomDataAPI_Point2D> aPassedAttr = std::dynamic_pointer_cast<
323 GeomDataAPI_Point2D>(data()->attribute(PASSED_POINT_ID()));
325 bool isValid = false;
326 if (anArcType == ARC_TYPE_THREE_POINTS())
327 isValid = aStartAttr->isInitialized() &&
328 anEndAttr->isInitialized() && aPassedAttr->isInitialized();
330 isValid = aCenterAttr->isInitialized() &&
331 aStartAttr->isInitialized() && anEndAttr->isInitialized();
336 static inline void adjustPeriod(double& theParam)
338 static const double PERIOD = 2.0 * PI;
339 while (theParam < 0.0) theParam += PERIOD;
340 while (theParam >= PERIOD) theParam -= PERIOD;
343 void SketchPlugin_Arc::attributeChanged(const std::string& theID)
345 std::shared_ptr<GeomDataAPI_Point2D> aCenterAttr = std::dynamic_pointer_cast<
346 GeomDataAPI_Point2D>(data()->attribute(CENTER_ID()));
347 std::shared_ptr<GeomDataAPI_Point2D> aStartAttr = std::dynamic_pointer_cast<
348 GeomDataAPI_Point2D>(data()->attribute(START_ID()));
349 std::shared_ptr<GeomDataAPI_Point2D> anEndAttr = std::dynamic_pointer_cast<
350 GeomDataAPI_Point2D>(data()->attribute(END_ID()));
351 // the second condition for unability to move external segments anywhere
352 if (theID == EXTERNAL_ID() || isFixed()) {
353 std::shared_ptr<GeomAPI_Shape> aSelection = data()->selection(EXTERNAL_ID())->value();
355 // empty shape in selection shows that the shape is equal to context
356 ResultPtr anExtRes = selection(EXTERNAL_ID())->context();
358 aSelection = anExtRes->shape();
360 // update arguments due to the selection value
361 if (aSelection && !aSelection->isNull() && aSelection->isEdge()) {
362 std::shared_ptr<GeomAPI_Edge> anEdge( new GeomAPI_Edge(aSelection));
363 std::shared_ptr<GeomAPI_Circ> aCirc = anEdge->circle();
365 aStartAttr->setValue(sketch()->to2D(anEdge->firstPoint()));
366 anEndAttr->setValue(sketch()->to2D(anEdge->lastPoint()));
367 aCenterAttr->setValue(sketch()->to2D(aCirc->center()));
369 data()->real(RADIUS_ID())->setValue(aCirc->radius());
370 double aStartAngle, aEndAngle;
371 anEdge->getRange(aStartAngle, aEndAngle);
372 data()->real(ANGLE_ID())->setValue(aEndAngle - aStartAngle);
373 myParamBefore = aEndAngle;
374 adjustPeriod(myParamBefore);
379 AttributeStringPtr aTypeAttr =
380 std::dynamic_pointer_cast<ModelAPI_AttributeString>(attribute(ARC_TYPE()));
382 // this is before others since here end attribute may be changed, but with the special behavior
383 if (aTypeAttr->value() == ARC_TYPE_TANGENT() &&
384 (theID == TANGENT_POINT_ID() || theID == END_ID())) {
385 SketchPlugin_Sketch* aSketch = sketch();
386 AttributeRefAttrPtr aTangPtAttr = std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(
387 data()->attribute(TANGENT_POINT_ID()));
389 if (aTangPtAttr->isInitialized() && anEndAttr->isInitialized()) {
390 // compute orthogonal direction
391 std::shared_ptr<GeomAPI_Dir2d> anOrthoDir;
392 std::shared_ptr<GeomDataAPI_Point2D> aTangentPoint =
393 std::dynamic_pointer_cast<GeomDataAPI_Point2D>(aTangPtAttr->attr());
394 std::shared_ptr<GeomAPI_Pnt2d> aTangPnt2d = aTangentPoint->pnt();
395 if (aTangPnt2d->isEqual(anEndAttr->pnt()))
397 FeaturePtr aTangFeature = ModelAPI_Feature::feature(aTangentPoint->owner());
398 std::shared_ptr<GeomAPI_Edge> aTangEdge = std::dynamic_pointer_cast<GeomAPI_Edge>(
399 aTangFeature->lastResult()->shape());
400 if (aTangEdge->isLine()) {
401 std::shared_ptr<GeomAPI_Dir> aDir = aTangEdge->line()->direction();
402 std::shared_ptr<GeomAPI_Pnt> aPnt(new GeomAPI_Pnt(aDir->x(), aDir->y(), aDir->z()));
403 std::shared_ptr<GeomAPI_Pnt2d> aPnt2d = aSketch->to2D(aPnt);
404 anOrthoDir = std::shared_ptr<GeomAPI_Dir2d>(new GeomAPI_Dir2d(-aPnt2d->y(), aPnt2d->x()));
406 else if (aTangEdge->isArc()) {
407 std::shared_ptr<GeomAPI_Pnt> aCenter = aTangEdge->circle()->center();
408 std::shared_ptr<GeomAPI_Pnt2d> aCenter2d = aSketch->to2D(aCenter);
409 anOrthoDir = std::shared_ptr<GeomAPI_Dir2d>(
410 new GeomAPI_Dir2d(aTangPnt2d->xy()->decreased(aCenter2d->xy())));
413 // compute parameters of the middle perpendicular
414 std::shared_ptr<GeomAPI_XY> aEndPntCoord = anEndAttr->pnt()->xy();
415 std::shared_ptr<GeomAPI_XY> aTempDir = aEndPntCoord->decreased(aTangPnt2d->xy());
416 std::shared_ptr<GeomAPI_Dir2d> aMidDir(new GeomAPI_Dir2d(-aTempDir->y(), aTempDir->x()));
417 std::shared_ptr<GeomAPI_Pnt2d> aMidPnt(
418 new GeomAPI_Pnt2d(aEndPntCoord->added(aTangPnt2d->xy())->multiplied(0.5)));
420 // compute center of arc by calculating intersection of
421 // orthogonal line and middle perpendicular
422 std::shared_ptr<GeomAPI_Lin2d> anOrthoLine(new GeomAPI_Lin2d(aTangPnt2d, anOrthoDir));
423 std::shared_ptr<GeomAPI_Lin2d> aMiddleLine(new GeomAPI_Lin2d(aMidPnt, aMidDir));
424 std::shared_ptr<GeomAPI_Pnt2d> aCenter = anOrthoLine->intersect(aMiddleLine);
426 bool aWasBlocked = data()->blockSendAttributeUpdated(true);
427 aCenterAttr->setValue(aCenter);
428 aStartAttr->setValue(aTangPnt2d);
429 data()->blockSendAttributeUpdated(aWasBlocked);
432 tangencyArcConstraints();
437 // if changed the base attributes, update all other (is necessary) without recursion
438 if (theID == CENTER_ID() || theID == START_ID() || theID == END_ID() || theID == ARC_TYPE()) {
439 if (!isFeatureValid())
441 std::shared_ptr<GeomAPI_Pnt2d> aCenter = aCenterAttr->pnt();
442 std::shared_ptr<GeomAPI_Pnt2d> aStart = aStartAttr->pnt();
443 std::shared_ptr<GeomAPI_Pnt2d> anEnd = anEndAttr->pnt();
444 double aRadius = aCenter->distance(aStart);
445 if (aRadius < tolerance)
447 std::shared_ptr<GeomAPI_Circ2d> aCircleForArc(new GeomAPI_Circ2d(aCenter, aStart));
449 bool aWasBlocked = data()->blockSendAttributeUpdated(true);
450 // The Arc end point is projected
451 // on the circle formed by center and start points
452 std::shared_ptr<GeomAPI_Pnt2d> aProjection = aCircleForArc->project(anEnd);
453 if (aProjection && anEnd->distance(aProjection) > tolerance) {
454 anEndAttr->setValue(aProjection);
457 // update all other attributes due to the base attributes values
458 if (aTypeAttr->value() == ARC_TYPE_THREE_POINTS()) {
459 // update passed point due to start, end and center
460 if (aCenter->distance(aStart) > tolerance && aCenter->distance(anEnd) > tolerance) {
461 // project passed point t othe circle
462 std::shared_ptr<GeomDataAPI_Point2D> aPassedAttr =
463 std::dynamic_pointer_cast<GeomDataAPI_Point2D>(data()->attribute(PASSED_POINT_ID()));
464 if (aPassedAttr->isInitialized()) {
465 std::shared_ptr<GeomAPI_Pnt2d> aProjection = aCircleForArc->project(aPassedAttr->pnt());
466 if (aProjection && aPassedAttr->pnt()->distance(aProjection) > tolerance) {
467 aPassedAttr->setValue(aProjection);
469 } else { // initialize it by some middle - value
470 std::shared_ptr<GeomAPI_Dir2d> aStartDir(new GeomAPI_Dir2d(
471 aStart->xy()->decreased(aCenter->xy())));
472 std::shared_ptr<GeomAPI_Dir2d> aEndDir(new GeomAPI_Dir2d(
473 anEnd->xy()->decreased(aCenter->xy())));
474 std::shared_ptr<GeomAPI_XY> aMidDirXY = aStartDir->xy()->added(aEndDir->xy());
475 if (aMidDirXY->dot(aMidDirXY) < tolerance * tolerance) {
476 // start and end directions are opposite, so middle direction will be orthogonal
477 aMidDirXY->setX(-aStartDir->y());
478 aMidDirXY->setY(aStartDir->x());
480 std::shared_ptr<GeomAPI_Dir2d> aMidDir(new GeomAPI_Dir2d(aMidDirXY));
481 if ((aStartDir->cross(aMidDir) > 0) ^ !isReversed())
483 std::shared_ptr<GeomAPI_XY> aPassedPnt =
484 aCenter->xy()->added(aMidDir->xy()->multiplied(aCenter->distance(aStart)));
485 std::dynamic_pointer_cast<GeomDataAPI_Point2D>(data()->attribute(PASSED_POINT_ID()))->
486 setValue(aPassedPnt->x(), aPassedPnt->y());
490 // update radius and angle
491 AttributeDoublePtr aRadiusAttr = std::dynamic_pointer_cast<ModelAPI_AttributeDouble>(
492 data()->attribute(RADIUS_ID()));
493 aRadiusAttr->setValue(aRadius);
494 AttributeDoublePtr anAngleAttr = std::dynamic_pointer_cast<ModelAPI_AttributeDouble>(
495 data()->attribute(ANGLE_ID()));
496 std::shared_ptr<GeomAPI_Circ2d> aCircle(new GeomAPI_Circ2d(aCenter, aStart));
497 double aStartParam, aEndParam;
498 aCircle->parameter(aStart, paramTolerance, aStartParam);
499 aCircle->parameter(anEnd, paramTolerance, aEndParam);
500 adjustPeriod(aStartParam);
501 adjustPeriod(aEndParam);
502 // use the passed point for the angle calculation
503 if (aTypeAttr->value() == ARC_TYPE_THREE_POINTS()) {
504 std::shared_ptr<GeomDataAPI_Point2D> aPassedAttr =
505 std::dynamic_pointer_cast<GeomDataAPI_Point2D>(data()->attribute(PASSED_POINT_ID()));
507 aCircle->parameter(aPassedAttr->pnt(), paramTolerance, aPassedParam);
508 adjustPeriod(aPassedParam);
509 double aNewAngle = aPassedParam >= aStartParam && aPassedParam <= aEndParam ?
510 ((aEndParam - aStartParam) * 180.0 / PI) :
511 ((aEndParam - aStartParam - 2.0 * PI) * 180.0 / PI);
512 if (!anAngleAttr->isInitialized() || fabs(aNewAngle - anAngleAttr->value()) > tolerance)
513 anAngleAttr->setValue(aNewAngle);
515 double aNewAngle = (aEndParam - aStartParam) * 180.0 / PI;
516 if (!anAngleAttr->isInitialized() || fabs(aNewAngle - anAngleAttr->value()) > tolerance)
517 anAngleAttr->setValue(aNewAngle);
520 // calculate arc aperture and change the Inversed flag if needed
521 AttributeBooleanPtr isInversed =
522 std::dynamic_pointer_cast<ModelAPI_AttributeBoolean>(attribute(INVERSED_ID()));
523 double aParameterNew = aEndParam - aStartParam;
524 if (((0 <= myParamBefore && myParamBefore <= PI / 2.0) || myParamBefore == PI * 2.0) &&
525 PI * 1.5 <= aParameterNew && aParameterNew <= PI * 2.0)
526 isInversed->setValue(true);
527 else if (PI * 1.5 <= myParamBefore && myParamBefore <= PI * 2.0 &&
528 0 <= aParameterNew && aParameterNew <= PI / 2.0)
529 isInversed->setValue(false);
530 myParamBefore = aParameterNew;
532 // do not need to inform that other parameters were changed in this basis mode: these arguments
534 data()->blockSendAttributeUpdated(aWasBlocked, false);
538 if (theID == PASSED_POINT_ID()) {
539 bool aWasBlocked = data()->blockSendAttributeUpdated(true);
541 std::shared_ptr<GeomAPI_Pnt2d> aPoints[3];
542 int aNbInitialized = 0;
543 for (int i = 1; i <= 3; ++i) {
544 std::shared_ptr<GeomDataAPI_Point2D> aCurPnt =
545 std::dynamic_pointer_cast<GeomDataAPI_Point2D>(attribute(POINT_ID(i)));
546 if (aCurPnt->isInitialized())
547 aPoints[aNbInitialized++] = aCurPnt->pnt();
550 if (aNbInitialized == 3) {
551 std::shared_ptr<GeomAPI_Circ2d> aCircle(
552 new GeomAPI_Circ2d(aPoints[0], aPoints[1], aPoints[2]));
554 std::shared_ptr<GeomAPI_Pnt2d> aCenter = aCircle->center();
556 aCenterAttr->setValue(aCenter);
559 data()->blockSendAttributeUpdated(aWasBlocked);
563 if (theID == RADIUS_ID()) {
564 if (!aStartAttr->isInitialized() || !anEndAttr->isInitialized() ||
565 !aCenterAttr->isInitialized())
567 // move center and passed point
568 std::shared_ptr<GeomAPI_Pnt2d> aStart = aStartAttr->pnt();
569 std::shared_ptr<GeomAPI_Pnt2d> anEnd = anEndAttr->pnt();
570 std::shared_ptr<GeomAPI_Pnt2d> aCenter = aCenterAttr->pnt();
571 if (aStart->distance(aCenter) < tolerance || anEnd->distance(aCenter) < tolerance)
573 AttributeDoublePtr aRadiusAttr = std::dynamic_pointer_cast<ModelAPI_AttributeDouble>(
574 data()->attribute(RADIUS_ID()));
575 double aRadius = aRadiusAttr->value();
577 bool aWasBlocked = data()->blockSendAttributeUpdated(true);
578 std::shared_ptr<GeomAPI_Dir2d>
579 aStartDir(new GeomAPI_Dir2d(aStart->xy()->decreased(aCenter->xy())));
580 std::shared_ptr<GeomAPI_XY>
581 aNewStart = aStartDir->xy()->multiplied(aRadius)->added(aCenter->xy());
582 aStartAttr->setValue(aNewStart->x(), aNewStart->y());
583 std::shared_ptr<GeomAPI_Dir2d>
584 anEndDir(new GeomAPI_Dir2d(anEnd->xy()->decreased(aCenter->xy())));
585 std::shared_ptr<GeomAPI_XY>
586 aNewEnd = anEndDir->xy()->multiplied(aRadius)->added(aCenter->xy());
587 anEndAttr->setValue(aNewEnd->x(), aNewEnd->y());
588 data()->blockSendAttributeUpdated(aWasBlocked);
591 if (theID == ANGLE_ID()) {
592 if (!aStartAttr->isInitialized() || !aCenterAttr->isInitialized())
594 AttributeDoublePtr anAngleAttr = std::dynamic_pointer_cast<ModelAPI_AttributeDouble>(
595 data()->attribute(ANGLE_ID()));
596 bool aWasBlocked = data()->blockSendAttributeUpdated(true);
597 // move end point and passed point
598 std::shared_ptr<GeomAPI_XY> aCenter = aCenterAttr->pnt()->xy();
599 double anAngle = anAngleAttr->value() * PI / 180.0;
600 double sinA = sin(anAngle);
601 double cosA = cos(anAngle);
602 std::shared_ptr<GeomAPI_XY> aStartDir = aStartAttr->pnt()->xy()->decreased(aCenter);
603 std::shared_ptr<GeomAPI_XY> aDir(new GeomAPI_XY(
604 aStartDir->x() * cosA - aStartDir->y() * sinA,
605 aStartDir->x() * sinA + aStartDir->y() * cosA));
606 anEndAttr->setValue(aCenter->x() + aDir->x(), aCenter->y() + aDir->y());
607 data()->blockSendAttributeUpdated(aWasBlocked);
612 void SketchPlugin_Arc::setReversed(bool isReversed)
614 std::dynamic_pointer_cast<ModelAPI_AttributeBoolean>(
615 attribute(INVERSED_ID()))->setValue(isReversed);
619 bool SketchPlugin_Arc::isReversed()
621 return std::dynamic_pointer_cast<ModelAPI_AttributeBoolean>(attribute(INVERSED_ID()))->value();
624 void SketchPlugin_Arc::tangencyArcConstraints()
629 std::shared_ptr<GeomDataAPI_Point2D> aStartAttr =
630 std::dynamic_pointer_cast<GeomDataAPI_Point2D>(attribute(START_ID()));
631 AttributeRefAttrPtr aTangPtAttr = std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(
632 attribute(TANGENT_POINT_ID()));
633 if (!aTangPtAttr->attr())
636 FeaturePtr aFeature = ModelAPI_Feature::feature(aStartAttr->owner());
637 ObjectPtr aThisArc = aFeature->lastResult();
638 aFeature = ModelAPI_Feature::feature(aTangPtAttr->attr()->owner());
639 ObjectPtr aTangFeature = aFeature->lastResult();
641 // trying to find constraints to fix the tangency of the arc
642 std::set<FeaturePtr> aCoincidence;
643 std::set<FeaturePtr> aTangency;
645 AttributeRefAttrPtr aRefAttrA, aRefAttrB;
646 std::set<AttributePtr> aRefs = data()->refsToMe();
647 const std::set<AttributePtr>& aRefsToResult = lastResult()->data()->refsToMe();
648 aRefs.insert(aRefsToResult.begin(), aRefsToResult.end());
649 std::set<AttributePtr>::const_iterator aRefIt = aRefs.begin();
650 for (; aRefIt != aRefs.end(); ++aRefIt) {
651 FeaturePtr aConstrFeature = ModelAPI_Feature::feature((*aRefIt)->owner());
652 if (aConstrFeature->getKind() == SketchPlugin_ConstraintCoincidence::ID()) {
653 aRefAttrA = std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(
654 aConstrFeature->attribute(SketchPlugin_Constraint::ENTITY_A()));
655 aRefAttrB = std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(
656 aConstrFeature->attribute(SketchPlugin_Constraint::ENTITY_B()));
657 if ((aRefAttrA && aRefAttrA->attr() == aStartAttr) ||
658 (aRefAttrB && aRefAttrB->attr() == aStartAttr))
659 aCoincidence.insert(aConstrFeature);
661 else if (aConstrFeature->getKind() == SketchPlugin_ConstraintTangent::ID()) {
662 aRefAttrA = std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(
663 aConstrFeature->attribute(SketchPlugin_Constraint::ENTITY_A()));
664 aRefAttrB = std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(
665 aConstrFeature->attribute(SketchPlugin_Constraint::ENTITY_B()));
666 if ((aRefAttrA && aRefAttrA->object() == aThisArc) ||
667 (aRefAttrB && aRefAttrB->object() == aThisArc))
668 aTangency.insert(aConstrFeature);
671 // search applicable pair of constraints
672 bool isFound = false;
673 FeaturePtr aPrevCoincidence, aPrevTangency;
674 std::set<FeaturePtr>::const_iterator aCIt, aTIt;
675 for (aCIt = aCoincidence.begin(); aCIt != aCoincidence.end() && !isFound; ++aCIt) {
676 aRefAttrA = std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(
677 (*aCIt)->attribute(SketchPlugin_Constraint::ENTITY_A()));
678 aRefAttrB = std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(
679 (*aCIt)->attribute(SketchPlugin_Constraint::ENTITY_B()));
680 AttributePtr anOtherPoint =
681 aRefAttrA->attr() == aStartAttr ? aRefAttrB->attr() : aRefAttrA->attr();
682 for (aTIt = aTangency.begin(); aTIt != aTangency.end() && !isFound; ++aTIt) {
683 aRefAttrA = std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(
684 (*aTIt)->attribute(SketchPlugin_Constraint::ENTITY_A()));
685 aRefAttrB = std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(
686 (*aTIt)->attribute(SketchPlugin_Constraint::ENTITY_B()));
687 ObjectPtr anOtherObject = aRefAttrA->object() == aThisArc ?
688 aRefAttrB->object() : aRefAttrA->object();
689 FeaturePtr anOtherFeature = ModelAPI_Feature::feature(anOtherObject);
690 if (anOtherPoint->owner() == anOtherFeature) {
692 aPrevCoincidence = *aCIt;
693 aPrevTangency = *aTIt;
699 // update previous constraints
700 aRefAttrA = std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(
701 aPrevCoincidence->attribute(SketchPlugin_Constraint::ENTITY_A()));
702 aRefAttrB = std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(
703 aPrevCoincidence->attribute(SketchPlugin_Constraint::ENTITY_B()));
704 if (aRefAttrA->attr() == aStartAttr)
705 aRefAttrB->setAttr(aTangPtAttr->attr());
707 aRefAttrA->setAttr(aTangPtAttr->attr());
709 aRefAttrA = std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(
710 aPrevTangency->attribute(SketchPlugin_Constraint::ENTITY_A()));
711 aRefAttrB = std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(
712 aPrevTangency->attribute(SketchPlugin_Constraint::ENTITY_B()));
713 if (aRefAttrA->object() == aThisArc)
714 aRefAttrB->setObject(aTangFeature);
716 aRefAttrA->setObject(aTangFeature);
718 // Wait all constraints being removed, then send update events
719 static Events_ID aDeleteEvent = Events_Loop::eventByName(EVENT_OBJECT_DELETED);
720 bool isDeleteFlushed = Events_Loop::loop()->isFlushed(aDeleteEvent);
722 Events_Loop::loop()->setFlushed(aDeleteEvent, false);
723 // Remove all obtained constraints which use current arc, because
724 // there is no information which of them were used to build tangency arc.
725 DocumentPtr aDoc = sketch()->document();
726 std::set<FeaturePtr> aFeaturesToBeRemoved;
727 for (aCIt = aCoincidence.begin(); aCIt != aCoincidence.end(); ++aCIt)
728 aFeaturesToBeRemoved.insert(*aCIt);
729 for (aTIt = aTangency.begin(); aTIt != aTangency.end(); ++aTIt)
730 aFeaturesToBeRemoved.insert(*aTIt);
731 ModelAPI_Tools::removeFeaturesAndReferences(aFeaturesToBeRemoved);
732 // Send events to update the sub-features by the solver.
734 Events_Loop::loop()->setFlushed(aDeleteEvent, true);
736 Events_Loop::loop()->flush(aDeleteEvent);
738 // Wait all constraints being created, then send update events
739 static Events_ID aCreateEvent = Events_Loop::eventByName(EVENT_OBJECT_CREATED);
740 bool isCreateFlushed = Events_Loop::loop()->isFlushed(aCreateEvent);
742 Events_Loop::loop()->setFlushed(aCreateEvent, false);
744 // Create new constraints
745 FeaturePtr aConstraint = sketch()->addFeature(SketchPlugin_ConstraintCoincidence::ID());
746 aRefAttrA = std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(
747 aConstraint->attribute(SketchPlugin_Constraint::ENTITY_A()));
748 aRefAttrB = std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(
749 aConstraint->attribute(SketchPlugin_Constraint::ENTITY_B()));
750 aRefAttrA->setAttr(aStartAttr);
751 aRefAttrB->setAttr(aTangPtAttr->attr());
752 aConstraint->execute();
753 ModelAPI_EventCreator::get()->sendUpdated(aConstraint, aCreateEvent);
755 aConstraint = sketch()->addFeature(SketchPlugin_ConstraintTangent::ID());
756 aRefAttrA = std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(
757 aConstraint->attribute(SketchPlugin_Constraint::ENTITY_A()));
758 aRefAttrB = std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(
759 aConstraint->attribute(SketchPlugin_Constraint::ENTITY_B()));
760 aRefAttrA->setObject(aThisArc);
761 aRefAttrB->setObject(aTangFeature);
762 aConstraint->execute();
763 ModelAPI_EventCreator::get()->sendUpdated(aConstraint, aCreateEvent);
765 // Send events to update the sub-features by the solver.
767 Events_Loop::loop()->setFlushed(aCreateEvent, true);
769 Events_Loop::loop()->flush(aCreateEvent);