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;
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 std::shared_ptr<GeomAPI_Dir> anXDir(new GeomAPI_Dir(aStartPoint->xyz()->decreased(aCenter->xyz())));
149 std::shared_ptr<GeomAPI_Ax2> anAx2(new GeomAPI_Ax2(aCenter, aNormal, anXDir));
150 std::shared_ptr<GeomAPI_Circ> aCirc(new GeomAPI_Circ(anAx2, aCenter->distance(aStartPoint)));
151 double aParameterNew = 0.0;
152 if(aCirc->parameter(aEndPoint, paramTolerance, aParameterNew)) {
153 if(0 <= myParamBefore && myParamBefore <= PI / 2.0
154 && PI * 1.5 <= aParameterNew && aParameterNew <= PI * 2.0) {
155 isInversed->setValue(true);
156 } else if(PI * 1.5 <= myParamBefore && myParamBefore <= PI * 2.0
157 && 0 <= aParameterNew && aParameterNew <= PI / 2.0) {
158 isInversed->setValue(false);
161 myParamBefore = aParameterNew;
163 std::shared_ptr<GeomAPI_Shape> aCircleShape;
164 if(!isInversed->value()) {
165 aCircleShape = GeomAlgoAPI_EdgeBuilder::lineCircleArc(aCenter, aStartPoint, aEndPoint, aNormal);
167 aCircleShape = GeomAlgoAPI_EdgeBuilder::lineCircleArc(aCenter, aEndPoint, aStartPoint, aNormal);
171 std::shared_ptr<ModelAPI_ResultConstruction> aConstr2 = document()->createConstruction(
173 aConstr2->setShape(aCircleShape);
174 aConstr2->setIsInHistory(false);
175 setResult(aConstr2, 1);
180 AISObjectPtr SketchPlugin_Arc::getAISObject(AISObjectPtr thePrevious)
182 SketchPlugin_Sketch* aSketch = sketch();
184 // if the feature is valid, the execute() method should be performed, AIS object is empty
185 if (!isFeatureValid()) {
186 // compute a circle point in 3D view
187 std::shared_ptr<GeomDataAPI_Point2D> aCenterAttr = std::dynamic_pointer_cast<
188 GeomDataAPI_Point2D>(data()->attribute(CENTER_ID()));
190 std::list<std::shared_ptr<GeomAPI_Shape> > aShapes;
191 if (aCenterAttr->isInitialized()) {
192 std::shared_ptr<GeomAPI_Pnt> aCenter(aSketch->to3D(aCenterAttr->x(), aCenterAttr->y()));
194 std::shared_ptr<GeomDataAPI_Point2D> aStartAttr = std::dynamic_pointer_cast<
195 GeomDataAPI_Point2D>(data()->attribute(SketchPlugin_Arc::START_ID()));
196 std::shared_ptr<GeomDataAPI_Point2D> aEndAttr = std::dynamic_pointer_cast<
197 GeomDataAPI_Point2D>(data()->attribute(SketchPlugin_Arc::END_ID()));
198 AttributeStringPtr aTypeAttr = std::dynamic_pointer_cast<ModelAPI_AttributeString>(
199 data()->attribute(ARC_TYPE()));
201 if (aStartAttr->isInitialized()) {
202 // make a visible circle
203 std::shared_ptr<GeomDataAPI_Dir> aNDir = std::dynamic_pointer_cast<GeomDataAPI_Dir>(
204 aSketch->data()->attribute(SketchPlugin_Sketch::NORM_ID()));
205 bool aHasPlane = aNDir && !(aNDir->x() == 0 && aNDir->y() == 0 && aNDir->z() == 0);
207 std::shared_ptr<GeomAPI_Dir> aNormal = aNDir->dir();
208 std::shared_ptr<GeomAPI_Pnt> aStartPoint(aSketch->to3D(aStartAttr->x(), aStartAttr->y()));
209 std::shared_ptr<GeomAPI_Pnt> aEndPoint = aStartPoint;
210 if (aTypeAttr && aTypeAttr->isInitialized() &&
211 aTypeAttr->value() == ARC_TYPE_THREE_POINTS() && aEndAttr->isInitialized() &&
212 aEndAttr->pnt()->distance(aStartAttr->pnt()) > tolerance) {
213 aEndPoint = aSketch->to3D(aEndAttr->x(), aEndAttr->y());
214 std::shared_ptr<GeomDataAPI_Point2D> aPassedAttr =
215 std::dynamic_pointer_cast<GeomDataAPI_Point2D>(data()->attribute(PASSED_POINT_ID()));
216 if (!aPassedAttr->isInitialized()) { // calculate the appropriate center for the presentation
217 // check that center is bad for the current start and end and must be recomputed
218 std::shared_ptr<GeomAPI_Circ2d> aCircleForArc(new GeomAPI_Circ2d(
219 aCenterAttr->pnt(), aStartAttr->pnt()));
220 std::shared_ptr<GeomAPI_Pnt2d> aProjection = 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());
233 AttributeBooleanPtr isInversed =
234 std::dynamic_pointer_cast<ModelAPI_AttributeBoolean>(attribute(INVERSED_ID()));
236 std::shared_ptr<GeomAPI_Shape> aCircleShape =
237 (isInversed->isInitialized() && isInversed->value()) ?
238 GeomAlgoAPI_EdgeBuilder::lineCircleArc(aCenter, aEndPoint, aStartPoint, aNormal) :
239 GeomAlgoAPI_EdgeBuilder::lineCircleArc(aCenter, aStartPoint, aEndPoint, aNormal);
242 aShapes.push_back(aCircleShape);
245 // make a visible point
246 std::shared_ptr<GeomAPI_Shape> aCenterPointShape = GeomAlgoAPI_PointBuilder::vertex(aCenter);
247 aShapes.push_back(aCenterPointShape);
249 if (!aShapes.empty()) {
250 std::shared_ptr<GeomAPI_Shape> aCompound = GeomAlgoAPI_CompoundBuilder::compound(aShapes);
251 AISObjectPtr anAIS = thePrevious;
253 anAIS = AISObjectPtr(new GeomAPI_AISObject);
254 anAIS->createShape(aCompound);
260 return AISObjectPtr();
263 void SketchPlugin_Arc::move(double theDeltaX, double theDeltaY)
265 std::shared_ptr<ModelAPI_Data> aData = data();
266 if (!aData->isValid())
269 aData->blockSendAttributeUpdated(true);
271 myStartUpdate = true;
273 std::shared_ptr<GeomDataAPI_Point2D> aPoint2 = std::dynamic_pointer_cast<GeomDataAPI_Point2D>(
274 aData->attribute(SketchPlugin_Arc::START_ID()));
275 aPoint2->move(theDeltaX, theDeltaY);
277 std::shared_ptr<GeomDataAPI_Point2D> aPoint3 = std::dynamic_pointer_cast<GeomDataAPI_Point2D>(
278 aData->attribute(SketchPlugin_Arc::END_ID()));
279 aPoint3->move(theDeltaX, theDeltaY);
280 myStartUpdate = false;
283 std::shared_ptr<GeomDataAPI_Point2D> aPoint1 = std::dynamic_pointer_cast<GeomDataAPI_Point2D>(
284 aData->attribute(SketchPlugin_Arc::CENTER_ID()));
285 aPoint1->move(theDeltaX, theDeltaY);
287 std::shared_ptr<GeomDataAPI_Point2D> aPassedPoint =
288 std::dynamic_pointer_cast<GeomDataAPI_Point2D>(aData->attribute(PASSED_POINT_ID()));
289 aPassedPoint->move(theDeltaX, theDeltaY);
290 aData->blockSendAttributeUpdated(false);
293 bool SketchPlugin_Arc::isFixed() {
294 return data()->selection(EXTERNAL_ID())->context().get() != NULL;
297 bool SketchPlugin_Arc::isFeatureValid()
299 AttributeStringPtr anArcTypeAttr =
300 std::dynamic_pointer_cast<ModelAPI_AttributeString>(data()->attribute(ARC_TYPE()));
303 std::string anArcType = anArcTypeAttr->value();
305 std::shared_ptr<GeomDataAPI_Point2D> aCenterAttr = std::dynamic_pointer_cast<
306 GeomDataAPI_Point2D>(data()->attribute(SketchPlugin_Arc::CENTER_ID()));
307 std::shared_ptr<GeomDataAPI_Point2D> aStartAttr = std::dynamic_pointer_cast<
308 GeomDataAPI_Point2D>(data()->attribute(SketchPlugin_Arc::START_ID()));
309 std::shared_ptr<GeomDataAPI_Point2D> anEndAttr = std::dynamic_pointer_cast<
310 GeomDataAPI_Point2D>(data()->attribute(SketchPlugin_Arc::END_ID()));
311 std::shared_ptr<GeomDataAPI_Point2D> aPassedAttr = std::dynamic_pointer_cast<
312 GeomDataAPI_Point2D>(data()->attribute(PASSED_POINT_ID()));
314 bool isValid = false;
315 if (anArcType == ARC_TYPE_THREE_POINTS())
316 isValid = aStartAttr->isInitialized() && anEndAttr->isInitialized() && aPassedAttr->isInitialized();
318 isValid = aCenterAttr->isInitialized() && aStartAttr->isInitialized() && anEndAttr->isInitialized();
323 static inline void adjustPeriod(double& theParam)
325 static const double PERIOD = 2.0 * PI;
326 while (theParam < 0.0) theParam += PERIOD;
327 while (theParam >= PERIOD) theParam -= PERIOD;
330 void SketchPlugin_Arc::attributeChanged(const std::string& theID)
332 std::shared_ptr<GeomDataAPI_Point2D> aCenterAttr = std::dynamic_pointer_cast<
333 GeomDataAPI_Point2D>(data()->attribute(CENTER_ID()));
334 std::shared_ptr<GeomDataAPI_Point2D> aStartAttr = std::dynamic_pointer_cast<
335 GeomDataAPI_Point2D>(data()->attribute(START_ID()));
336 std::shared_ptr<GeomDataAPI_Point2D> anEndAttr = std::dynamic_pointer_cast<
337 GeomDataAPI_Point2D>(data()->attribute(END_ID()));
338 // the second condition for unability to move external segments anywhere
339 if (theID == EXTERNAL_ID() || isFixed()) {
340 std::shared_ptr<GeomAPI_Shape> aSelection = data()->selection(EXTERNAL_ID())->value();
341 // update arguments due to the selection value
342 if (aSelection && !aSelection->isNull() && aSelection->isEdge()) {
343 std::shared_ptr<GeomAPI_Edge> anEdge( new GeomAPI_Edge(aSelection));
344 std::shared_ptr<GeomAPI_Circ> aCirc = anEdge->circle();
346 aStartAttr->setValue(sketch()->to2D(anEdge->firstPoint()));
347 anEndAttr->setValue(sketch()->to2D(anEdge->lastPoint()));
348 aCenterAttr->setValue(sketch()->to2D(aCirc->center()));
350 data()->real(RADIUS_ID())->setValue(aCirc->radius());
351 double aStartAngle, aEndAngle;
352 anEdge->getRange(aStartAngle, aEndAngle);
353 data()->real(ANGLE_ID())->setValue(aEndAngle - aStartAngle);
358 AttributeStringPtr aTypeAttr =
359 std::dynamic_pointer_cast<ModelAPI_AttributeString>(attribute(ARC_TYPE()));
361 // this is before others since here end attribute may be changed, but with the special behavior
362 if (aTypeAttr->value() == ARC_TYPE_TANGENT() && (theID == TANGENT_POINT_ID() || theID == END_ID())) {
363 SketchPlugin_Sketch* aSketch = sketch();
364 AttributeRefAttrPtr aTangPtAttr = std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(
365 data()->attribute(TANGENT_POINT_ID()));
367 if (aTangPtAttr->isInitialized() && anEndAttr->isInitialized()) {
368 // compute orthogonal direction
369 std::shared_ptr<GeomAPI_Dir2d> anOrthoDir;
370 std::shared_ptr<GeomDataAPI_Point2D> aTangentPoint =
371 std::dynamic_pointer_cast<GeomDataAPI_Point2D>(aTangPtAttr->attr());
372 std::shared_ptr<GeomAPI_Pnt2d> aTangPnt2d = aTangentPoint->pnt();
373 FeaturePtr aTangFeature = ModelAPI_Feature::feature(aTangentPoint->owner());
374 std::shared_ptr<GeomAPI_Edge> aTangEdge = std::dynamic_pointer_cast<GeomAPI_Edge>(
375 aTangFeature->lastResult()->shape());
376 if (aTangEdge->isLine()) {
377 std::shared_ptr<GeomAPI_Dir> aDir = aTangEdge->line()->direction();
378 std::shared_ptr<GeomAPI_Pnt> aPnt(new GeomAPI_Pnt(aDir->x(), aDir->y(), aDir->z()));
379 std::shared_ptr<GeomAPI_Pnt2d> aPnt2d = aSketch->to2D(aPnt);
380 anOrthoDir = std::shared_ptr<GeomAPI_Dir2d>(new GeomAPI_Dir2d(-aPnt2d->y(), aPnt2d->x()));
382 else if (aTangEdge->isArc()) {
383 std::shared_ptr<GeomAPI_Pnt> aCenter = aTangEdge->circle()->center();
384 std::shared_ptr<GeomAPI_Pnt2d> aCenter2d = aSketch->to2D(aCenter);
385 anOrthoDir = std::shared_ptr<GeomAPI_Dir2d>(
386 new GeomAPI_Dir2d(aTangPnt2d->xy()->decreased(aCenter2d->xy())));
389 // compute parameters of the middle perpendicular
390 std::shared_ptr<GeomAPI_XY> aEndPntCoord = anEndAttr->pnt()->xy();
391 std::shared_ptr<GeomAPI_XY> aTempDir = aEndPntCoord->decreased(aTangPnt2d->xy());
392 std::shared_ptr<GeomAPI_Dir2d> aMidDir(new GeomAPI_Dir2d(-aTempDir->y(), aTempDir->x()));
393 std::shared_ptr<GeomAPI_Pnt2d> aMidPnt(
394 new GeomAPI_Pnt2d(aEndPntCoord->added(aTangPnt2d->xy())->multiplied(0.5)));
396 // compute center of arc by calculating intersection of orthogonal line and middle perpendicular
397 std::shared_ptr<GeomAPI_Lin2d> anOrthoLine(new GeomAPI_Lin2d(aTangPnt2d, anOrthoDir));
398 std::shared_ptr<GeomAPI_Lin2d> aMiddleLine(new GeomAPI_Lin2d(aMidPnt, aMidDir));
399 std::shared_ptr<GeomAPI_Pnt2d> aCenter = anOrthoLine->intersect(aMiddleLine);
401 data()->blockSendAttributeUpdated(true);
402 aCenterAttr->setValue(aCenter);
403 aStartAttr->setValue(aTangPnt2d);
404 data()->blockSendAttributeUpdated(false);
407 tangencyArcConstraints();
412 // if changed the base attributes, update all other (is necessary) without recursion
413 if (theID == CENTER_ID() || theID == START_ID() || theID == END_ID() || theID == ARC_TYPE()) {
414 if (!isFeatureValid())
416 std::shared_ptr<GeomAPI_Pnt2d> aCenter = aCenterAttr->pnt();
417 std::shared_ptr<GeomAPI_Pnt2d> aStart = aStartAttr->pnt();
418 std::shared_ptr<GeomAPI_Pnt2d> anEnd = anEndAttr->pnt();
419 double aRadius = aCenter->distance(aStart);
420 if (aRadius < tolerance)
422 std::shared_ptr<GeomAPI_Circ2d> aCircleForArc(new GeomAPI_Circ2d(aCenter, aStart));
424 data()->blockSendAttributeUpdated(true);
425 if (theID == END_ID() && isStable()) {
426 // The arc is under construction, so its end point projected
427 // on the circle formed by center and start points
428 std::shared_ptr<GeomAPI_Pnt2d> aProjection = aCircleForArc->project(anEnd);
429 if (aProjection && anEnd->distance(aProjection) > tolerance) {
430 anEndAttr->setValue(aProjection);
434 // update all other attributes due to the base attributes values
435 if (aTypeAttr->value() == ARC_TYPE_THREE_POINTS()) { // update passed point due to start, end and center
436 if (aCenter->distance(aStart) > tolerance && aCenter->distance(anEnd) > tolerance) {
437 // project passed point t othe circle
438 std::shared_ptr<GeomDataAPI_Point2D> aPassedAttr =
439 std::dynamic_pointer_cast<GeomDataAPI_Point2D>(data()->attribute(PASSED_POINT_ID()));
440 if (aPassedAttr->isInitialized()) {
441 std::shared_ptr<GeomAPI_Pnt2d> aProjection = aCircleForArc->project(aPassedAttr->pnt());
442 if (aProjection && aPassedAttr->pnt()->distance(aProjection) > tolerance) {
443 aPassedAttr->setValue(aProjection);
445 } else { // initialize it by some middle - value
446 std::shared_ptr<GeomAPI_Dir2d> aStartDir(new GeomAPI_Dir2d(
447 aStart->xy()->decreased(aCenter->xy())));
448 std::shared_ptr<GeomAPI_Dir2d> aEndDir(new GeomAPI_Dir2d(
449 anEnd->xy()->decreased(aCenter->xy())));
450 std::shared_ptr<GeomAPI_XY> aMidDirXY = aStartDir->xy()->added(aEndDir->xy());
451 if (aMidDirXY->dot(aMidDirXY) < tolerance * tolerance) {
452 // start and end directions are opposite, so middle direction will be orthogonal
453 aMidDirXY->setX(-aStartDir->y());
454 aMidDirXY->setY(aStartDir->x());
456 std::shared_ptr<GeomAPI_Dir2d> aMidDir(new GeomAPI_Dir2d(aMidDirXY));
457 if ((aStartDir->cross(aMidDir) > 0) ^ !isReversed())
459 std::shared_ptr<GeomAPI_XY> aPassedPnt =
460 aCenter->xy()->added(aMidDir->xy()->multiplied(aCenter->distance(aStart)));
461 std::dynamic_pointer_cast<GeomDataAPI_Point2D>(data()->attribute(PASSED_POINT_ID()))->
462 setValue(aPassedPnt->x(), aPassedPnt->y());
466 // update radius and angle
467 AttributeDoublePtr aRadiusAttr = std::dynamic_pointer_cast<ModelAPI_AttributeDouble>(
468 data()->attribute(RADIUS_ID()));
469 aRadiusAttr->setValue(aRadius);
470 AttributeDoublePtr anAngleAttr = std::dynamic_pointer_cast<ModelAPI_AttributeDouble>(
471 data()->attribute(ANGLE_ID()));
472 std::shared_ptr<GeomAPI_Circ2d> aCircle(new GeomAPI_Circ2d(aCenter, aStart));
473 double aStartParam, aEndParam;
474 aCircle->parameter(aStart, paramTolerance, aStartParam);
475 aCircle->parameter(anEnd, paramTolerance, aEndParam);
476 adjustPeriod(aStartParam);
477 adjustPeriod(aEndParam);
478 if (aTypeAttr->value() == ARC_TYPE_THREE_POINTS()) { // use the passed point for the angle calculation
479 std::shared_ptr<GeomDataAPI_Point2D> aPassedAttr =
480 std::dynamic_pointer_cast<GeomDataAPI_Point2D>(data()->attribute(PASSED_POINT_ID()));
482 aCircle->parameter(aPassedAttr->pnt(), paramTolerance, aPassedParam);
483 adjustPeriod(aPassedParam);
484 double aNewAngle = aPassedParam >= aStartParam && aPassedParam <= aEndParam ?
485 ((aEndParam - aStartParam) * 180.0 / PI) :
486 ((aEndParam - aStartParam - 2.0 * PI) * 180.0 / PI);
487 if (fabs(aNewAngle - anAngleAttr->value()) > tolerance)
488 anAngleAttr->setValue(aNewAngle);
490 double aNewAngle = (aEndParam - aStartParam) * 180.0 / PI;
491 if (fabs(aNewAngle - anAngleAttr->value()) > tolerance)
492 anAngleAttr->setValue(aNewAngle);
494 // do not need to inform that other parameters were changed in this basis mode: these arguments
496 data()->blockSendAttributeUpdated(false, false);
500 if (theID == PASSED_POINT_ID()) {
501 data()->blockSendAttributeUpdated(true);
503 std::shared_ptr<GeomAPI_Pnt2d> aPoints[3];
504 int aNbInitialized = 0;
505 for (int i = 1; i <= 3; ++i) {
506 std::shared_ptr<GeomDataAPI_Point2D> aCurPnt =
507 std::dynamic_pointer_cast<GeomDataAPI_Point2D>(attribute(POINT_ID(i)));
508 if (aCurPnt->isInitialized())
509 aPoints[aNbInitialized++] = aCurPnt->pnt();
512 if (aNbInitialized == 3) {
513 std::shared_ptr<GeomAPI_Circ2d> aCircle(
514 new GeomAPI_Circ2d(aPoints[0], aPoints[1], aPoints[2]));
516 std::shared_ptr<GeomAPI_Pnt2d> aCenter = aCircle->center();
518 aCenterAttr->setValue(aCenter);
521 data()->blockSendAttributeUpdated(false);
525 if (theID == RADIUS_ID()) {
526 if (!aStartAttr->isInitialized() || !anEndAttr->isInitialized() || !aCenterAttr->isInitialized())
528 // move center and passed point
529 std::shared_ptr<GeomAPI_Pnt2d> aStart = aStartAttr->pnt();
530 std::shared_ptr<GeomAPI_Pnt2d> anEnd = anEndAttr->pnt();
531 std::shared_ptr<GeomAPI_Pnt2d> aCenter = aCenterAttr->pnt();
532 if (aStart->distance(aCenter) < tolerance || anEnd->distance(aCenter) < tolerance)
534 AttributeDoublePtr aRadiusAttr = std::dynamic_pointer_cast<ModelAPI_AttributeDouble>(
535 data()->attribute(RADIUS_ID()));
536 double aRadius = aRadiusAttr->value();
538 data()->blockSendAttributeUpdated(true);
539 std::shared_ptr<GeomAPI_Dir2d> aStartDir(new GeomAPI_Dir2d(aStart->xy()->decreased(aCenter->xy())));
540 std::shared_ptr<GeomAPI_XY> aNewStart = aStartDir->xy()->multiplied(aRadius)->added(aCenter->xy());
541 aStartAttr->setValue(aNewStart->x(), aNewStart->y());
542 std::shared_ptr<GeomAPI_Dir2d> anEndDir(new GeomAPI_Dir2d(anEnd->xy()->decreased(aCenter->xy())));
543 std::shared_ptr<GeomAPI_XY> aNewEnd = anEndDir->xy()->multiplied(aRadius)->added(aCenter->xy());
544 anEndAttr->setValue(aNewEnd->x(), aNewEnd->y());
545 data()->blockSendAttributeUpdated(false);
548 if (theID == ANGLE_ID()) {
549 if (!aStartAttr->isInitialized() || !aCenterAttr->isInitialized())
551 AttributeDoublePtr anAngleAttr = std::dynamic_pointer_cast<ModelAPI_AttributeDouble>(
552 data()->attribute(ANGLE_ID()));
553 data()->blockSendAttributeUpdated(true);
554 // move end point and passed point
555 std::shared_ptr<GeomAPI_XY> aCenter = aCenterAttr->pnt()->xy();
556 double anAngle = anAngleAttr->value() * PI / 180.0;
557 double sinA = sin(anAngle);
558 double cosA = cos(anAngle);
559 std::shared_ptr<GeomAPI_XY> aStartDir = aStartAttr->pnt()->xy()->decreased(aCenter);
560 std::shared_ptr<GeomAPI_XY> aDir(new GeomAPI_XY(
561 aStartDir->x() * cosA - aStartDir->y() * sinA,
562 aStartDir->x() * sinA + aStartDir->y() * cosA));
563 anEndAttr->setValue(aCenter->x() + aDir->x(), aCenter->y() + aDir->y());
564 data()->blockSendAttributeUpdated(false);
569 void SketchPlugin_Arc::setReversed(bool isReversed)
571 std::dynamic_pointer_cast<ModelAPI_AttributeBoolean>(attribute(INVERSED_ID()))->setValue(isReversed);
575 bool SketchPlugin_Arc::isReversed()
577 return std::dynamic_pointer_cast<ModelAPI_AttributeBoolean>(attribute(INVERSED_ID()))->value();
580 void SketchPlugin_Arc::tangencyArcConstraints()
585 std::shared_ptr<GeomDataAPI_Point2D> aStartAttr =
586 std::dynamic_pointer_cast<GeomDataAPI_Point2D>(attribute(START_ID()));
587 AttributeRefAttrPtr aTangPtAttr = std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(
588 attribute(TANGENT_POINT_ID()));
589 if (!aTangPtAttr->attr())
592 FeaturePtr aFeature = ModelAPI_Feature::feature(aStartAttr->owner());
593 ObjectPtr aThisArc = aFeature->lastResult();
594 aFeature = ModelAPI_Feature::feature(aTangPtAttr->attr()->owner());
595 ObjectPtr aTangFeature = aFeature->lastResult();
597 // trying to find constraints to fix the tangency of the arc
598 std::set<FeaturePtr> aCoincidence;
599 std::set<FeaturePtr> aTangency;
601 AttributeRefAttrPtr aRefAttrA, aRefAttrB;
602 std::set<AttributePtr> aRefs = data()->refsToMe();
603 const std::set<AttributePtr>& aRefsToResult = lastResult()->data()->refsToMe();
604 aRefs.insert(aRefsToResult.begin(), aRefsToResult.end());
605 std::set<AttributePtr>::const_iterator aRefIt = aRefs.begin();
606 for (; aRefIt != aRefs.end(); ++aRefIt) {
607 FeaturePtr aConstrFeature = ModelAPI_Feature::feature((*aRefIt)->owner());
608 if (aConstrFeature->getKind() == SketchPlugin_ConstraintCoincidence::ID()) {
609 aRefAttrA = std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(
610 aConstrFeature->attribute(SketchPlugin_Constraint::ENTITY_A()));
611 aRefAttrB = std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(
612 aConstrFeature->attribute(SketchPlugin_Constraint::ENTITY_B()));
613 if ((aRefAttrA && aRefAttrA->attr() == aStartAttr) ||
614 (aRefAttrB && aRefAttrB->attr() == aStartAttr))
615 aCoincidence.insert(aConstrFeature);
617 else if (aConstrFeature->getKind() == SketchPlugin_ConstraintTangent::ID()) {
618 aRefAttrA = std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(
619 aConstrFeature->attribute(SketchPlugin_Constraint::ENTITY_A()));
620 aRefAttrB = std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(
621 aConstrFeature->attribute(SketchPlugin_Constraint::ENTITY_B()));
622 if ((aRefAttrA && aRefAttrA->object() == aThisArc) ||
623 (aRefAttrB && aRefAttrB->object() == aThisArc))
624 aTangency.insert(aConstrFeature);
627 // search applicable pair of constraints
628 bool isFound = false;
629 FeaturePtr aPrevCoincidence, aPrevTangency;
630 std::set<FeaturePtr>::const_iterator aCIt, aTIt;
631 for (aCIt = aCoincidence.begin(); aCIt != aCoincidence.end() && !isFound; ++aCIt) {
632 aRefAttrA = std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(
633 (*aCIt)->attribute(SketchPlugin_Constraint::ENTITY_A()));
634 aRefAttrB = std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(
635 (*aCIt)->attribute(SketchPlugin_Constraint::ENTITY_B()));
636 AttributePtr anOtherPoint =
637 aRefAttrA->attr() == aStartAttr ? aRefAttrB->attr() : aRefAttrA->attr();
638 for (aTIt = aTangency.begin(); aTIt != aTangency.end() && !isFound; ++aTIt) {
639 aRefAttrA = std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(
640 (*aTIt)->attribute(SketchPlugin_Constraint::ENTITY_A()));
641 aRefAttrB = std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(
642 (*aTIt)->attribute(SketchPlugin_Constraint::ENTITY_B()));
643 ObjectPtr anOtherObject = aRefAttrA->object() == aThisArc ?
644 aRefAttrB->object() : aRefAttrA->object();
645 FeaturePtr anOtherFeature = ModelAPI_Feature::feature(anOtherObject);
646 if (anOtherPoint->owner() == anOtherFeature) {
648 aPrevCoincidence = *aCIt;
649 aPrevTangency = *aTIt;
655 // update previous constraints
656 aRefAttrA = std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(
657 aPrevCoincidence->attribute(SketchPlugin_Constraint::ENTITY_A()));
658 aRefAttrB = std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(
659 aPrevCoincidence->attribute(SketchPlugin_Constraint::ENTITY_B()));
660 if (aRefAttrA->attr() == aStartAttr)
661 aRefAttrB->setAttr(aTangPtAttr->attr());
663 aRefAttrA->setAttr(aTangPtAttr->attr());
665 aRefAttrA = std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(
666 aPrevTangency->attribute(SketchPlugin_Constraint::ENTITY_A()));
667 aRefAttrB = std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(
668 aPrevTangency->attribute(SketchPlugin_Constraint::ENTITY_B()));
669 if (aRefAttrA->object() == aThisArc)
670 aRefAttrB->setObject(aTangFeature);
672 aRefAttrA->setObject(aTangFeature);
674 // Wait all constraints being removed, then send update events
675 static Events_ID aDeleteEvent = Events_Loop::eventByName(EVENT_OBJECT_DELETED);
676 bool isDeleteFlushed = Events_Loop::loop()->isFlushed(aDeleteEvent);
678 Events_Loop::loop()->setFlushed(aDeleteEvent, false);
679 // Remove all obtained constraints which use current arc, because
680 // there is no information which of them were used to build tangency arc.
681 DocumentPtr aDoc = sketch()->document();
682 std::set<FeaturePtr> aFeaturesToBeRemoved;
683 for (aCIt = aCoincidence.begin(); aCIt != aCoincidence.end(); ++aCIt)
684 aFeaturesToBeRemoved.insert(*aCIt);
685 for (aTIt = aTangency.begin(); aTIt != aTangency.end(); ++aTIt)
686 aFeaturesToBeRemoved.insert(*aTIt);
687 ModelAPI_Tools::removeFeaturesAndReferences(aFeaturesToBeRemoved);
688 // Send events to update the sub-features by the solver.
690 Events_Loop::loop()->setFlushed(aDeleteEvent, true);
692 Events_Loop::loop()->flush(aDeleteEvent);
694 // Wait all constraints being created, then send update events
695 static Events_ID aCreateEvent = Events_Loop::eventByName(EVENT_OBJECT_CREATED);
696 bool isCreateFlushed = Events_Loop::loop()->isFlushed(aCreateEvent);
698 Events_Loop::loop()->setFlushed(aCreateEvent, false);
700 // Create new constraints
701 FeaturePtr aConstraint = sketch()->addFeature(SketchPlugin_ConstraintCoincidence::ID());
702 aRefAttrA = std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(
703 aConstraint->attribute(SketchPlugin_Constraint::ENTITY_A()));
704 aRefAttrB = std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(
705 aConstraint->attribute(SketchPlugin_Constraint::ENTITY_B()));
706 aRefAttrA->setAttr(aStartAttr);
707 aRefAttrB->setAttr(aTangPtAttr->attr());
708 aConstraint->execute();
709 ModelAPI_EventCreator::get()->sendUpdated(aConstraint, aCreateEvent);
711 aConstraint = sketch()->addFeature(SketchPlugin_ConstraintTangent::ID());
712 aRefAttrA = std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(
713 aConstraint->attribute(SketchPlugin_Constraint::ENTITY_A()));
714 aRefAttrB = std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(
715 aConstraint->attribute(SketchPlugin_Constraint::ENTITY_B()));
716 aRefAttrA->setObject(aThisArc);
717 aRefAttrB->setObject(aTangFeature);
718 aConstraint->execute();
719 ModelAPI_EventCreator::get()->sendUpdated(aConstraint, aCreateEvent);
721 // Send events to update the sub-features by the solver.
723 Events_Loop::loop()->setFlushed(aCreateEvent, true);
725 Events_Loop::loop()->flush(aCreateEvent);