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();
342 // empty shape in selection shows that the shape is equal to context
343 ResultPtr anExtRes = selection(EXTERNAL_ID())->context();
345 aSelection = anExtRes->shape();
347 // update arguments due to the selection value
348 if (aSelection && !aSelection->isNull() && aSelection->isEdge()) {
349 std::shared_ptr<GeomAPI_Edge> anEdge( new GeomAPI_Edge(aSelection));
350 std::shared_ptr<GeomAPI_Circ> aCirc = anEdge->circle();
352 aStartAttr->setValue(sketch()->to2D(anEdge->firstPoint()));
353 anEndAttr->setValue(sketch()->to2D(anEdge->lastPoint()));
354 aCenterAttr->setValue(sketch()->to2D(aCirc->center()));
356 data()->real(RADIUS_ID())->setValue(aCirc->radius());
357 double aStartAngle, aEndAngle;
358 anEdge->getRange(aStartAngle, aEndAngle);
359 data()->real(ANGLE_ID())->setValue(aEndAngle - aStartAngle);
364 AttributeStringPtr aTypeAttr =
365 std::dynamic_pointer_cast<ModelAPI_AttributeString>(attribute(ARC_TYPE()));
367 // this is before others since here end attribute may be changed, but with the special behavior
368 if (aTypeAttr->value() == ARC_TYPE_TANGENT() && (theID == TANGENT_POINT_ID() || theID == END_ID())) {
369 SketchPlugin_Sketch* aSketch = sketch();
370 AttributeRefAttrPtr aTangPtAttr = std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(
371 data()->attribute(TANGENT_POINT_ID()));
373 if (aTangPtAttr->isInitialized() && anEndAttr->isInitialized()) {
374 // compute orthogonal direction
375 std::shared_ptr<GeomAPI_Dir2d> anOrthoDir;
376 std::shared_ptr<GeomDataAPI_Point2D> aTangentPoint =
377 std::dynamic_pointer_cast<GeomDataAPI_Point2D>(aTangPtAttr->attr());
378 std::shared_ptr<GeomAPI_Pnt2d> aTangPnt2d = aTangentPoint->pnt();
379 if (aTangPnt2d->isEqual(anEndAttr->pnt()))
381 FeaturePtr aTangFeature = ModelAPI_Feature::feature(aTangentPoint->owner());
382 std::shared_ptr<GeomAPI_Edge> aTangEdge = std::dynamic_pointer_cast<GeomAPI_Edge>(
383 aTangFeature->lastResult()->shape());
384 if (aTangEdge->isLine()) {
385 std::shared_ptr<GeomAPI_Dir> aDir = aTangEdge->line()->direction();
386 std::shared_ptr<GeomAPI_Pnt> aPnt(new GeomAPI_Pnt(aDir->x(), aDir->y(), aDir->z()));
387 std::shared_ptr<GeomAPI_Pnt2d> aPnt2d = aSketch->to2D(aPnt);
388 anOrthoDir = std::shared_ptr<GeomAPI_Dir2d>(new GeomAPI_Dir2d(-aPnt2d->y(), aPnt2d->x()));
390 else if (aTangEdge->isArc()) {
391 std::shared_ptr<GeomAPI_Pnt> aCenter = aTangEdge->circle()->center();
392 std::shared_ptr<GeomAPI_Pnt2d> aCenter2d = aSketch->to2D(aCenter);
393 anOrthoDir = std::shared_ptr<GeomAPI_Dir2d>(
394 new GeomAPI_Dir2d(aTangPnt2d->xy()->decreased(aCenter2d->xy())));
397 // compute parameters of the middle perpendicular
398 std::shared_ptr<GeomAPI_XY> aEndPntCoord = anEndAttr->pnt()->xy();
399 std::shared_ptr<GeomAPI_XY> aTempDir = aEndPntCoord->decreased(aTangPnt2d->xy());
400 std::shared_ptr<GeomAPI_Dir2d> aMidDir(new GeomAPI_Dir2d(-aTempDir->y(), aTempDir->x()));
401 std::shared_ptr<GeomAPI_Pnt2d> aMidPnt(
402 new GeomAPI_Pnt2d(aEndPntCoord->added(aTangPnt2d->xy())->multiplied(0.5)));
404 // compute center of arc by calculating intersection of orthogonal line and middle perpendicular
405 std::shared_ptr<GeomAPI_Lin2d> anOrthoLine(new GeomAPI_Lin2d(aTangPnt2d, anOrthoDir));
406 std::shared_ptr<GeomAPI_Lin2d> aMiddleLine(new GeomAPI_Lin2d(aMidPnt, aMidDir));
407 std::shared_ptr<GeomAPI_Pnt2d> aCenter = anOrthoLine->intersect(aMiddleLine);
409 data()->blockSendAttributeUpdated(true);
410 aCenterAttr->setValue(aCenter);
411 aStartAttr->setValue(aTangPnt2d);
412 data()->blockSendAttributeUpdated(false);
415 tangencyArcConstraints();
420 // if changed the base attributes, update all other (is necessary) without recursion
421 if (theID == CENTER_ID() || theID == START_ID() || theID == END_ID() || theID == ARC_TYPE()) {
422 if (!isFeatureValid())
424 std::shared_ptr<GeomAPI_Pnt2d> aCenter = aCenterAttr->pnt();
425 std::shared_ptr<GeomAPI_Pnt2d> aStart = aStartAttr->pnt();
426 std::shared_ptr<GeomAPI_Pnt2d> anEnd = anEndAttr->pnt();
427 double aRadius = aCenter->distance(aStart);
428 if (aRadius < tolerance)
430 std::shared_ptr<GeomAPI_Circ2d> aCircleForArc(new GeomAPI_Circ2d(aCenter, aStart));
432 data()->blockSendAttributeUpdated(true);
433 if (theID == END_ID() && isStable()) {
434 // The arc is under construction, so its end point projected
435 // on the circle formed by center and start points
436 std::shared_ptr<GeomAPI_Pnt2d> aProjection = aCircleForArc->project(anEnd);
437 if (aProjection && anEnd->distance(aProjection) > tolerance) {
438 anEndAttr->setValue(aProjection);
442 // update all other attributes due to the base attributes values
443 if (aTypeAttr->value() == ARC_TYPE_THREE_POINTS()) { // update passed point due to start, end and center
444 if (aCenter->distance(aStart) > tolerance && aCenter->distance(anEnd) > tolerance) {
445 // project passed point t othe circle
446 std::shared_ptr<GeomDataAPI_Point2D> aPassedAttr =
447 std::dynamic_pointer_cast<GeomDataAPI_Point2D>(data()->attribute(PASSED_POINT_ID()));
448 if (aPassedAttr->isInitialized()) {
449 std::shared_ptr<GeomAPI_Pnt2d> aProjection = aCircleForArc->project(aPassedAttr->pnt());
450 if (aProjection && aPassedAttr->pnt()->distance(aProjection) > tolerance) {
451 aPassedAttr->setValue(aProjection);
453 } else { // initialize it by some middle - value
454 std::shared_ptr<GeomAPI_Dir2d> aStartDir(new GeomAPI_Dir2d(
455 aStart->xy()->decreased(aCenter->xy())));
456 std::shared_ptr<GeomAPI_Dir2d> aEndDir(new GeomAPI_Dir2d(
457 anEnd->xy()->decreased(aCenter->xy())));
458 std::shared_ptr<GeomAPI_XY> aMidDirXY = aStartDir->xy()->added(aEndDir->xy());
459 if (aMidDirXY->dot(aMidDirXY) < tolerance * tolerance) {
460 // start and end directions are opposite, so middle direction will be orthogonal
461 aMidDirXY->setX(-aStartDir->y());
462 aMidDirXY->setY(aStartDir->x());
464 std::shared_ptr<GeomAPI_Dir2d> aMidDir(new GeomAPI_Dir2d(aMidDirXY));
465 if ((aStartDir->cross(aMidDir) > 0) ^ !isReversed())
467 std::shared_ptr<GeomAPI_XY> aPassedPnt =
468 aCenter->xy()->added(aMidDir->xy()->multiplied(aCenter->distance(aStart)));
469 std::dynamic_pointer_cast<GeomDataAPI_Point2D>(data()->attribute(PASSED_POINT_ID()))->
470 setValue(aPassedPnt->x(), aPassedPnt->y());
474 // update radius and angle
475 AttributeDoublePtr aRadiusAttr = std::dynamic_pointer_cast<ModelAPI_AttributeDouble>(
476 data()->attribute(RADIUS_ID()));
477 aRadiusAttr->setValue(aRadius);
478 AttributeDoublePtr anAngleAttr = std::dynamic_pointer_cast<ModelAPI_AttributeDouble>(
479 data()->attribute(ANGLE_ID()));
480 std::shared_ptr<GeomAPI_Circ2d> aCircle(new GeomAPI_Circ2d(aCenter, aStart));
481 double aStartParam, aEndParam;
482 aCircle->parameter(aStart, paramTolerance, aStartParam);
483 aCircle->parameter(anEnd, paramTolerance, aEndParam);
484 adjustPeriod(aStartParam);
485 adjustPeriod(aEndParam);
486 if (aTypeAttr->value() == ARC_TYPE_THREE_POINTS()) { // use the passed point for the angle calculation
487 std::shared_ptr<GeomDataAPI_Point2D> aPassedAttr =
488 std::dynamic_pointer_cast<GeomDataAPI_Point2D>(data()->attribute(PASSED_POINT_ID()));
490 aCircle->parameter(aPassedAttr->pnt(), paramTolerance, aPassedParam);
491 adjustPeriod(aPassedParam);
492 double aNewAngle = aPassedParam >= aStartParam && aPassedParam <= aEndParam ?
493 ((aEndParam - aStartParam) * 180.0 / PI) :
494 ((aEndParam - aStartParam - 2.0 * PI) * 180.0 / PI);
495 if (!anAngleAttr->isInitialized() || fabs(aNewAngle - anAngleAttr->value()) > tolerance)
496 anAngleAttr->setValue(aNewAngle);
498 double aNewAngle = (aEndParam - aStartParam) * 180.0 / PI;
499 if (!anAngleAttr->isInitialized() || fabs(aNewAngle - anAngleAttr->value()) > tolerance)
500 anAngleAttr->setValue(aNewAngle);
502 // do not need to inform that other parameters were changed in this basis mode: these arguments
504 data()->blockSendAttributeUpdated(false, false);
508 if (theID == PASSED_POINT_ID()) {
509 data()->blockSendAttributeUpdated(true);
511 std::shared_ptr<GeomAPI_Pnt2d> aPoints[3];
512 int aNbInitialized = 0;
513 for (int i = 1; i <= 3; ++i) {
514 std::shared_ptr<GeomDataAPI_Point2D> aCurPnt =
515 std::dynamic_pointer_cast<GeomDataAPI_Point2D>(attribute(POINT_ID(i)));
516 if (aCurPnt->isInitialized())
517 aPoints[aNbInitialized++] = aCurPnt->pnt();
520 if (aNbInitialized == 3) {
521 std::shared_ptr<GeomAPI_Circ2d> aCircle(
522 new GeomAPI_Circ2d(aPoints[0], aPoints[1], aPoints[2]));
524 std::shared_ptr<GeomAPI_Pnt2d> aCenter = aCircle->center();
526 aCenterAttr->setValue(aCenter);
529 data()->blockSendAttributeUpdated(false);
533 if (theID == RADIUS_ID()) {
534 if (!aStartAttr->isInitialized() || !anEndAttr->isInitialized() || !aCenterAttr->isInitialized())
536 // move center and passed point
537 std::shared_ptr<GeomAPI_Pnt2d> aStart = aStartAttr->pnt();
538 std::shared_ptr<GeomAPI_Pnt2d> anEnd = anEndAttr->pnt();
539 std::shared_ptr<GeomAPI_Pnt2d> aCenter = aCenterAttr->pnt();
540 if (aStart->distance(aCenter) < tolerance || anEnd->distance(aCenter) < tolerance)
542 AttributeDoublePtr aRadiusAttr = std::dynamic_pointer_cast<ModelAPI_AttributeDouble>(
543 data()->attribute(RADIUS_ID()));
544 double aRadius = aRadiusAttr->value();
546 data()->blockSendAttributeUpdated(true);
547 std::shared_ptr<GeomAPI_Dir2d> aStartDir(new GeomAPI_Dir2d(aStart->xy()->decreased(aCenter->xy())));
548 std::shared_ptr<GeomAPI_XY> aNewStart = aStartDir->xy()->multiplied(aRadius)->added(aCenter->xy());
549 aStartAttr->setValue(aNewStart->x(), aNewStart->y());
550 std::shared_ptr<GeomAPI_Dir2d> anEndDir(new GeomAPI_Dir2d(anEnd->xy()->decreased(aCenter->xy())));
551 std::shared_ptr<GeomAPI_XY> aNewEnd = anEndDir->xy()->multiplied(aRadius)->added(aCenter->xy());
552 anEndAttr->setValue(aNewEnd->x(), aNewEnd->y());
553 data()->blockSendAttributeUpdated(false);
556 if (theID == ANGLE_ID()) {
557 if (!aStartAttr->isInitialized() || !aCenterAttr->isInitialized())
559 AttributeDoublePtr anAngleAttr = std::dynamic_pointer_cast<ModelAPI_AttributeDouble>(
560 data()->attribute(ANGLE_ID()));
561 data()->blockSendAttributeUpdated(true);
562 // move end point and passed point
563 std::shared_ptr<GeomAPI_XY> aCenter = aCenterAttr->pnt()->xy();
564 double anAngle = anAngleAttr->value() * PI / 180.0;
565 double sinA = sin(anAngle);
566 double cosA = cos(anAngle);
567 std::shared_ptr<GeomAPI_XY> aStartDir = aStartAttr->pnt()->xy()->decreased(aCenter);
568 std::shared_ptr<GeomAPI_XY> aDir(new GeomAPI_XY(
569 aStartDir->x() * cosA - aStartDir->y() * sinA,
570 aStartDir->x() * sinA + aStartDir->y() * cosA));
571 anEndAttr->setValue(aCenter->x() + aDir->x(), aCenter->y() + aDir->y());
572 data()->blockSendAttributeUpdated(false);
577 void SketchPlugin_Arc::setReversed(bool isReversed)
579 std::dynamic_pointer_cast<ModelAPI_AttributeBoolean>(attribute(INVERSED_ID()))->setValue(isReversed);
583 bool SketchPlugin_Arc::isReversed()
585 return std::dynamic_pointer_cast<ModelAPI_AttributeBoolean>(attribute(INVERSED_ID()))->value();
588 void SketchPlugin_Arc::tangencyArcConstraints()
593 std::shared_ptr<GeomDataAPI_Point2D> aStartAttr =
594 std::dynamic_pointer_cast<GeomDataAPI_Point2D>(attribute(START_ID()));
595 AttributeRefAttrPtr aTangPtAttr = std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(
596 attribute(TANGENT_POINT_ID()));
597 if (!aTangPtAttr->attr())
600 FeaturePtr aFeature = ModelAPI_Feature::feature(aStartAttr->owner());
601 ObjectPtr aThisArc = aFeature->lastResult();
602 aFeature = ModelAPI_Feature::feature(aTangPtAttr->attr()->owner());
603 ObjectPtr aTangFeature = aFeature->lastResult();
605 // trying to find constraints to fix the tangency of the arc
606 std::set<FeaturePtr> aCoincidence;
607 std::set<FeaturePtr> aTangency;
609 AttributeRefAttrPtr aRefAttrA, aRefAttrB;
610 std::set<AttributePtr> aRefs = data()->refsToMe();
611 const std::set<AttributePtr>& aRefsToResult = lastResult()->data()->refsToMe();
612 aRefs.insert(aRefsToResult.begin(), aRefsToResult.end());
613 std::set<AttributePtr>::const_iterator aRefIt = aRefs.begin();
614 for (; aRefIt != aRefs.end(); ++aRefIt) {
615 FeaturePtr aConstrFeature = ModelAPI_Feature::feature((*aRefIt)->owner());
616 if (aConstrFeature->getKind() == SketchPlugin_ConstraintCoincidence::ID()) {
617 aRefAttrA = std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(
618 aConstrFeature->attribute(SketchPlugin_Constraint::ENTITY_A()));
619 aRefAttrB = std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(
620 aConstrFeature->attribute(SketchPlugin_Constraint::ENTITY_B()));
621 if ((aRefAttrA && aRefAttrA->attr() == aStartAttr) ||
622 (aRefAttrB && aRefAttrB->attr() == aStartAttr))
623 aCoincidence.insert(aConstrFeature);
625 else if (aConstrFeature->getKind() == SketchPlugin_ConstraintTangent::ID()) {
626 aRefAttrA = std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(
627 aConstrFeature->attribute(SketchPlugin_Constraint::ENTITY_A()));
628 aRefAttrB = std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(
629 aConstrFeature->attribute(SketchPlugin_Constraint::ENTITY_B()));
630 if ((aRefAttrA && aRefAttrA->object() == aThisArc) ||
631 (aRefAttrB && aRefAttrB->object() == aThisArc))
632 aTangency.insert(aConstrFeature);
635 // search applicable pair of constraints
636 bool isFound = false;
637 FeaturePtr aPrevCoincidence, aPrevTangency;
638 std::set<FeaturePtr>::const_iterator aCIt, aTIt;
639 for (aCIt = aCoincidence.begin(); aCIt != aCoincidence.end() && !isFound; ++aCIt) {
640 aRefAttrA = std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(
641 (*aCIt)->attribute(SketchPlugin_Constraint::ENTITY_A()));
642 aRefAttrB = std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(
643 (*aCIt)->attribute(SketchPlugin_Constraint::ENTITY_B()));
644 AttributePtr anOtherPoint =
645 aRefAttrA->attr() == aStartAttr ? aRefAttrB->attr() : aRefAttrA->attr();
646 for (aTIt = aTangency.begin(); aTIt != aTangency.end() && !isFound; ++aTIt) {
647 aRefAttrA = std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(
648 (*aTIt)->attribute(SketchPlugin_Constraint::ENTITY_A()));
649 aRefAttrB = std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(
650 (*aTIt)->attribute(SketchPlugin_Constraint::ENTITY_B()));
651 ObjectPtr anOtherObject = aRefAttrA->object() == aThisArc ?
652 aRefAttrB->object() : aRefAttrA->object();
653 FeaturePtr anOtherFeature = ModelAPI_Feature::feature(anOtherObject);
654 if (anOtherPoint->owner() == anOtherFeature) {
656 aPrevCoincidence = *aCIt;
657 aPrevTangency = *aTIt;
663 // update previous constraints
664 aRefAttrA = std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(
665 aPrevCoincidence->attribute(SketchPlugin_Constraint::ENTITY_A()));
666 aRefAttrB = std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(
667 aPrevCoincidence->attribute(SketchPlugin_Constraint::ENTITY_B()));
668 if (aRefAttrA->attr() == aStartAttr)
669 aRefAttrB->setAttr(aTangPtAttr->attr());
671 aRefAttrA->setAttr(aTangPtAttr->attr());
673 aRefAttrA = std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(
674 aPrevTangency->attribute(SketchPlugin_Constraint::ENTITY_A()));
675 aRefAttrB = std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(
676 aPrevTangency->attribute(SketchPlugin_Constraint::ENTITY_B()));
677 if (aRefAttrA->object() == aThisArc)
678 aRefAttrB->setObject(aTangFeature);
680 aRefAttrA->setObject(aTangFeature);
682 // Wait all constraints being removed, then send update events
683 static Events_ID aDeleteEvent = Events_Loop::eventByName(EVENT_OBJECT_DELETED);
684 bool isDeleteFlushed = Events_Loop::loop()->isFlushed(aDeleteEvent);
686 Events_Loop::loop()->setFlushed(aDeleteEvent, false);
687 // Remove all obtained constraints which use current arc, because
688 // there is no information which of them were used to build tangency arc.
689 DocumentPtr aDoc = sketch()->document();
690 std::set<FeaturePtr> aFeaturesToBeRemoved;
691 for (aCIt = aCoincidence.begin(); aCIt != aCoincidence.end(); ++aCIt)
692 aFeaturesToBeRemoved.insert(*aCIt);
693 for (aTIt = aTangency.begin(); aTIt != aTangency.end(); ++aTIt)
694 aFeaturesToBeRemoved.insert(*aTIt);
695 ModelAPI_Tools::removeFeaturesAndReferences(aFeaturesToBeRemoved);
696 // Send events to update the sub-features by the solver.
698 Events_Loop::loop()->setFlushed(aDeleteEvent, true);
700 Events_Loop::loop()->flush(aDeleteEvent);
702 // Wait all constraints being created, then send update events
703 static Events_ID aCreateEvent = Events_Loop::eventByName(EVENT_OBJECT_CREATED);
704 bool isCreateFlushed = Events_Loop::loop()->isFlushed(aCreateEvent);
706 Events_Loop::loop()->setFlushed(aCreateEvent, false);
708 // Create new constraints
709 FeaturePtr aConstraint = sketch()->addFeature(SketchPlugin_ConstraintCoincidence::ID());
710 aRefAttrA = std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(
711 aConstraint->attribute(SketchPlugin_Constraint::ENTITY_A()));
712 aRefAttrB = std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(
713 aConstraint->attribute(SketchPlugin_Constraint::ENTITY_B()));
714 aRefAttrA->setAttr(aStartAttr);
715 aRefAttrB->setAttr(aTangPtAttr->attr());
716 aConstraint->execute();
717 ModelAPI_EventCreator::get()->sendUpdated(aConstraint, aCreateEvent);
719 aConstraint = sketch()->addFeature(SketchPlugin_ConstraintTangent::ID());
720 aRefAttrA = std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(
721 aConstraint->attribute(SketchPlugin_Constraint::ENTITY_A()));
722 aRefAttrB = std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(
723 aConstraint->attribute(SketchPlugin_Constraint::ENTITY_B()));
724 aRefAttrA->setObject(aThisArc);
725 aRefAttrB->setObject(aTangFeature);
726 aConstraint->execute();
727 ModelAPI_EventCreator::get()->sendUpdated(aConstraint, aCreateEvent);
729 // Send events to update the sub-features by the solver.
731 Events_Loop::loop()->setFlushed(aCreateEvent, true);
733 Events_Loop::loop()->flush(aCreateEvent);