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 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()) {
212 if (aEndAttr->isInitialized() && //
213 aEndAttr->pnt()->distance(aStartAttr->pnt()) > tolerance) {
214 aEndPoint = aSketch->to3D(aEndAttr->x(), aEndAttr->y());
215 std::shared_ptr<GeomDataAPI_Point2D> aPassedAttr =
216 std::dynamic_pointer_cast<GeomDataAPI_Point2D>(data()->attribute(PASSED_POINT_ID()));
217 if (!aPassedAttr->isInitialized()) { // calculate the appropriate center for the presentation
218 // check that center is bad for the current start and end and must be recomputed
219 std::shared_ptr<GeomAPI_Circ2d> aCircleForArc(new GeomAPI_Circ2d(
220 aCenterAttr->pnt(), aStartAttr->pnt()));
221 std::shared_ptr<GeomAPI_Pnt2d> aProjection = aCircleForArc->project(aEndAttr->pnt());
222 if (!aProjection.get() || aEndAttr->pnt()->distance(aProjection) > tolerance) {
223 std::shared_ptr<GeomAPI_XY> aDir =
224 aEndAttr->pnt()->xy()->decreased(aStartAttr->pnt()->xy())->multiplied(0.5);
225 double x = aDir->x();
226 double y = aDir->y();
229 std::shared_ptr<GeomAPI_XY> aCenterXY = aStartAttr->pnt()->xy()->added(aDir);
230 aCenter = aSketch->to3D(aCenterXY->x(), aCenterXY->y());
233 } else { // issue #1695: don't display circle if initialized only start point
234 return AISObjectPtr();
237 AttributeBooleanPtr isInversed =
238 std::dynamic_pointer_cast<ModelAPI_AttributeBoolean>(attribute(INVERSED_ID()));
240 std::shared_ptr<GeomAPI_Shape> aCircleShape =
241 (isInversed->isInitialized() && isInversed->value()) ?
242 GeomAlgoAPI_EdgeBuilder::lineCircleArc(aCenter, aEndPoint, aStartPoint, aNormal) :
243 GeomAlgoAPI_EdgeBuilder::lineCircleArc(aCenter, aStartPoint, aEndPoint, aNormal);
246 aShapes.push_back(aCircleShape);
249 // make a visible point
250 std::shared_ptr<GeomAPI_Shape> aCenterPointShape = 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);
264 return AISObjectPtr();
267 void SketchPlugin_Arc::move(double theDeltaX, double theDeltaY)
269 std::shared_ptr<ModelAPI_Data> aData = data();
270 if (!aData->isValid())
273 aData->blockSendAttributeUpdated(true);
275 myStartUpdate = true;
277 std::shared_ptr<GeomDataAPI_Point2D> aPoint2 = std::dynamic_pointer_cast<GeomDataAPI_Point2D>(
278 aData->attribute(SketchPlugin_Arc::START_ID()));
279 if (aPoint2->isInitialized())
280 aPoint2->move(theDeltaX, theDeltaY);
282 std::shared_ptr<GeomDataAPI_Point2D> aPoint3 = std::dynamic_pointer_cast<GeomDataAPI_Point2D>(
283 aData->attribute(SketchPlugin_Arc::END_ID()));
284 if (aPoint3->isInitialized())
285 aPoint3->move(theDeltaX, theDeltaY);
286 myStartUpdate = false;
289 std::shared_ptr<GeomDataAPI_Point2D> aPoint1 = std::dynamic_pointer_cast<GeomDataAPI_Point2D>(
290 aData->attribute(SketchPlugin_Arc::CENTER_ID()));
291 if (aPoint1->isInitialized())
292 aPoint1->move(theDeltaX, theDeltaY);
294 std::shared_ptr<GeomDataAPI_Point2D> aPassedPoint =
295 std::dynamic_pointer_cast<GeomDataAPI_Point2D>(aData->attribute(PASSED_POINT_ID()));
296 if (aPassedPoint->isInitialized())
297 aPassedPoint->move(theDeltaX, theDeltaY);
298 aData->blockSendAttributeUpdated(false);
301 bool SketchPlugin_Arc::isFixed() {
302 return data()->selection(EXTERNAL_ID())->context().get() != NULL;
305 bool SketchPlugin_Arc::isFeatureValid()
307 AttributeStringPtr anArcTypeAttr =
308 std::dynamic_pointer_cast<ModelAPI_AttributeString>(data()->attribute(ARC_TYPE()));
311 std::string anArcType = anArcTypeAttr->value();
313 std::shared_ptr<GeomDataAPI_Point2D> aCenterAttr = std::dynamic_pointer_cast<
314 GeomDataAPI_Point2D>(data()->attribute(SketchPlugin_Arc::CENTER_ID()));
315 std::shared_ptr<GeomDataAPI_Point2D> aStartAttr = std::dynamic_pointer_cast<
316 GeomDataAPI_Point2D>(data()->attribute(SketchPlugin_Arc::START_ID()));
317 std::shared_ptr<GeomDataAPI_Point2D> anEndAttr = std::dynamic_pointer_cast<
318 GeomDataAPI_Point2D>(data()->attribute(SketchPlugin_Arc::END_ID()));
319 std::shared_ptr<GeomDataAPI_Point2D> aPassedAttr = std::dynamic_pointer_cast<
320 GeomDataAPI_Point2D>(data()->attribute(PASSED_POINT_ID()));
322 bool isValid = false;
323 if (anArcType == ARC_TYPE_THREE_POINTS())
324 isValid = aStartAttr->isInitialized() && anEndAttr->isInitialized() && aPassedAttr->isInitialized();
326 isValid = aCenterAttr->isInitialized() && aStartAttr->isInitialized() && anEndAttr->isInitialized();
331 static inline void adjustPeriod(double& theParam)
333 static const double PERIOD = 2.0 * PI;
334 while (theParam < 0.0) theParam += PERIOD;
335 while (theParam >= PERIOD) theParam -= PERIOD;
338 void SketchPlugin_Arc::attributeChanged(const std::string& theID)
340 std::shared_ptr<GeomDataAPI_Point2D> aCenterAttr = std::dynamic_pointer_cast<
341 GeomDataAPI_Point2D>(data()->attribute(CENTER_ID()));
342 std::shared_ptr<GeomDataAPI_Point2D> aStartAttr = std::dynamic_pointer_cast<
343 GeomDataAPI_Point2D>(data()->attribute(START_ID()));
344 std::shared_ptr<GeomDataAPI_Point2D> anEndAttr = std::dynamic_pointer_cast<
345 GeomDataAPI_Point2D>(data()->attribute(END_ID()));
346 // the second condition for unability to move external segments anywhere
347 if (theID == EXTERNAL_ID() || isFixed()) {
348 std::shared_ptr<GeomAPI_Shape> aSelection = data()->selection(EXTERNAL_ID())->value();
350 // empty shape in selection shows that the shape is equal to context
351 ResultPtr anExtRes = selection(EXTERNAL_ID())->context();
353 aSelection = anExtRes->shape();
355 // update arguments due to the selection value
356 if (aSelection && !aSelection->isNull() && aSelection->isEdge()) {
357 std::shared_ptr<GeomAPI_Edge> anEdge( new GeomAPI_Edge(aSelection));
358 std::shared_ptr<GeomAPI_Circ> aCirc = anEdge->circle();
360 aStartAttr->setValue(sketch()->to2D(anEdge->firstPoint()));
361 anEndAttr->setValue(sketch()->to2D(anEdge->lastPoint()));
362 aCenterAttr->setValue(sketch()->to2D(aCirc->center()));
364 data()->real(RADIUS_ID())->setValue(aCirc->radius());
365 double aStartAngle, aEndAngle;
366 anEdge->getRange(aStartAngle, aEndAngle);
367 data()->real(ANGLE_ID())->setValue(aEndAngle - aStartAngle);
372 AttributeStringPtr aTypeAttr =
373 std::dynamic_pointer_cast<ModelAPI_AttributeString>(attribute(ARC_TYPE()));
375 // this is before others since here end attribute may be changed, but with the special behavior
376 if (aTypeAttr->value() == ARC_TYPE_TANGENT() && (theID == TANGENT_POINT_ID() || theID == END_ID())) {
377 SketchPlugin_Sketch* aSketch = sketch();
378 AttributeRefAttrPtr aTangPtAttr = std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(
379 data()->attribute(TANGENT_POINT_ID()));
381 if (aTangPtAttr->isInitialized() && anEndAttr->isInitialized()) {
382 // compute orthogonal direction
383 std::shared_ptr<GeomAPI_Dir2d> anOrthoDir;
384 std::shared_ptr<GeomDataAPI_Point2D> aTangentPoint =
385 std::dynamic_pointer_cast<GeomDataAPI_Point2D>(aTangPtAttr->attr());
386 std::shared_ptr<GeomAPI_Pnt2d> aTangPnt2d = aTangentPoint->pnt();
387 if (aTangPnt2d->isEqual(anEndAttr->pnt()))
389 FeaturePtr aTangFeature = ModelAPI_Feature::feature(aTangentPoint->owner());
390 std::shared_ptr<GeomAPI_Edge> aTangEdge = std::dynamic_pointer_cast<GeomAPI_Edge>(
391 aTangFeature->lastResult()->shape());
392 if (aTangEdge->isLine()) {
393 std::shared_ptr<GeomAPI_Dir> aDir = aTangEdge->line()->direction();
394 std::shared_ptr<GeomAPI_Pnt> aPnt(new GeomAPI_Pnt(aDir->x(), aDir->y(), aDir->z()));
395 std::shared_ptr<GeomAPI_Pnt2d> aPnt2d = aSketch->to2D(aPnt);
396 anOrthoDir = std::shared_ptr<GeomAPI_Dir2d>(new GeomAPI_Dir2d(-aPnt2d->y(), aPnt2d->x()));
398 else if (aTangEdge->isArc()) {
399 std::shared_ptr<GeomAPI_Pnt> aCenter = aTangEdge->circle()->center();
400 std::shared_ptr<GeomAPI_Pnt2d> aCenter2d = aSketch->to2D(aCenter);
401 anOrthoDir = std::shared_ptr<GeomAPI_Dir2d>(
402 new GeomAPI_Dir2d(aTangPnt2d->xy()->decreased(aCenter2d->xy())));
405 // compute parameters of the middle perpendicular
406 std::shared_ptr<GeomAPI_XY> aEndPntCoord = anEndAttr->pnt()->xy();
407 std::shared_ptr<GeomAPI_XY> aTempDir = aEndPntCoord->decreased(aTangPnt2d->xy());
408 std::shared_ptr<GeomAPI_Dir2d> aMidDir(new GeomAPI_Dir2d(-aTempDir->y(), aTempDir->x()));
409 std::shared_ptr<GeomAPI_Pnt2d> aMidPnt(
410 new GeomAPI_Pnt2d(aEndPntCoord->added(aTangPnt2d->xy())->multiplied(0.5)));
412 // compute center of arc by calculating intersection of orthogonal line and middle perpendicular
413 std::shared_ptr<GeomAPI_Lin2d> anOrthoLine(new GeomAPI_Lin2d(aTangPnt2d, anOrthoDir));
414 std::shared_ptr<GeomAPI_Lin2d> aMiddleLine(new GeomAPI_Lin2d(aMidPnt, aMidDir));
415 std::shared_ptr<GeomAPI_Pnt2d> aCenter = anOrthoLine->intersect(aMiddleLine);
417 data()->blockSendAttributeUpdated(true);
418 aCenterAttr->setValue(aCenter);
419 aStartAttr->setValue(aTangPnt2d);
420 data()->blockSendAttributeUpdated(false);
423 tangencyArcConstraints();
428 // if changed the base attributes, update all other (is necessary) without recursion
429 if (theID == CENTER_ID() || theID == START_ID() || theID == END_ID() || theID == ARC_TYPE()) {
430 if (!isFeatureValid())
432 std::shared_ptr<GeomAPI_Pnt2d> aCenter = aCenterAttr->pnt();
433 std::shared_ptr<GeomAPI_Pnt2d> aStart = aStartAttr->pnt();
434 std::shared_ptr<GeomAPI_Pnt2d> anEnd = anEndAttr->pnt();
435 double aRadius = aCenter->distance(aStart);
436 if (aRadius < tolerance)
438 std::shared_ptr<GeomAPI_Circ2d> aCircleForArc(new GeomAPI_Circ2d(aCenter, aStart));
440 data()->blockSendAttributeUpdated(true);
441 if (theID == END_ID() && isStable()) {
442 // The arc is under construction, so its end point projected
443 // on the circle formed by center and start points
444 std::shared_ptr<GeomAPI_Pnt2d> aProjection = aCircleForArc->project(anEnd);
445 if (aProjection && anEnd->distance(aProjection) > tolerance) {
446 anEndAttr->setValue(aProjection);
450 // update all other attributes due to the base attributes values
451 if (aTypeAttr->value() == ARC_TYPE_THREE_POINTS()) { // update passed point due to start, end and center
452 if (aCenter->distance(aStart) > tolerance && aCenter->distance(anEnd) > tolerance) {
453 // project passed point t othe circle
454 std::shared_ptr<GeomDataAPI_Point2D> aPassedAttr =
455 std::dynamic_pointer_cast<GeomDataAPI_Point2D>(data()->attribute(PASSED_POINT_ID()));
456 if (aPassedAttr->isInitialized()) {
457 std::shared_ptr<GeomAPI_Pnt2d> aProjection = aCircleForArc->project(aPassedAttr->pnt());
458 if (aProjection && aPassedAttr->pnt()->distance(aProjection) > tolerance) {
459 aPassedAttr->setValue(aProjection);
461 } else { // initialize it by some middle - value
462 std::shared_ptr<GeomAPI_Dir2d> aStartDir(new GeomAPI_Dir2d(
463 aStart->xy()->decreased(aCenter->xy())));
464 std::shared_ptr<GeomAPI_Dir2d> aEndDir(new GeomAPI_Dir2d(
465 anEnd->xy()->decreased(aCenter->xy())));
466 std::shared_ptr<GeomAPI_XY> aMidDirXY = aStartDir->xy()->added(aEndDir->xy());
467 if (aMidDirXY->dot(aMidDirXY) < tolerance * tolerance) {
468 // start and end directions are opposite, so middle direction will be orthogonal
469 aMidDirXY->setX(-aStartDir->y());
470 aMidDirXY->setY(aStartDir->x());
472 std::shared_ptr<GeomAPI_Dir2d> aMidDir(new GeomAPI_Dir2d(aMidDirXY));
473 if ((aStartDir->cross(aMidDir) > 0) ^ !isReversed())
475 std::shared_ptr<GeomAPI_XY> aPassedPnt =
476 aCenter->xy()->added(aMidDir->xy()->multiplied(aCenter->distance(aStart)));
477 std::dynamic_pointer_cast<GeomDataAPI_Point2D>(data()->attribute(PASSED_POINT_ID()))->
478 setValue(aPassedPnt->x(), aPassedPnt->y());
482 // update radius and angle
483 AttributeDoublePtr aRadiusAttr = std::dynamic_pointer_cast<ModelAPI_AttributeDouble>(
484 data()->attribute(RADIUS_ID()));
485 aRadiusAttr->setValue(aRadius);
486 AttributeDoublePtr anAngleAttr = std::dynamic_pointer_cast<ModelAPI_AttributeDouble>(
487 data()->attribute(ANGLE_ID()));
488 std::shared_ptr<GeomAPI_Circ2d> aCircle(new GeomAPI_Circ2d(aCenter, aStart));
489 double aStartParam, aEndParam;
490 aCircle->parameter(aStart, paramTolerance, aStartParam);
491 aCircle->parameter(anEnd, paramTolerance, aEndParam);
492 adjustPeriod(aStartParam);
493 adjustPeriod(aEndParam);
494 if (aTypeAttr->value() == ARC_TYPE_THREE_POINTS()) { // use the passed point for the angle calculation
495 std::shared_ptr<GeomDataAPI_Point2D> aPassedAttr =
496 std::dynamic_pointer_cast<GeomDataAPI_Point2D>(data()->attribute(PASSED_POINT_ID()));
498 aCircle->parameter(aPassedAttr->pnt(), paramTolerance, aPassedParam);
499 adjustPeriod(aPassedParam);
500 double aNewAngle = aPassedParam >= aStartParam && aPassedParam <= aEndParam ?
501 ((aEndParam - aStartParam) * 180.0 / PI) :
502 ((aEndParam - aStartParam - 2.0 * PI) * 180.0 / PI);
503 if (!anAngleAttr->isInitialized() || fabs(aNewAngle - anAngleAttr->value()) > tolerance)
504 anAngleAttr->setValue(aNewAngle);
506 double aNewAngle = (aEndParam - aStartParam) * 180.0 / PI;
507 if (!anAngleAttr->isInitialized() || fabs(aNewAngle - anAngleAttr->value()) > tolerance)
508 anAngleAttr->setValue(aNewAngle);
510 // do not need to inform that other parameters were changed in this basis mode: these arguments
512 data()->blockSendAttributeUpdated(false, false);
516 if (theID == PASSED_POINT_ID()) {
517 data()->blockSendAttributeUpdated(true);
519 std::shared_ptr<GeomAPI_Pnt2d> aPoints[3];
520 int aNbInitialized = 0;
521 for (int i = 1; i <= 3; ++i) {
522 std::shared_ptr<GeomDataAPI_Point2D> aCurPnt =
523 std::dynamic_pointer_cast<GeomDataAPI_Point2D>(attribute(POINT_ID(i)));
524 if (aCurPnt->isInitialized())
525 aPoints[aNbInitialized++] = aCurPnt->pnt();
528 if (aNbInitialized == 3) {
529 std::shared_ptr<GeomAPI_Circ2d> aCircle(
530 new GeomAPI_Circ2d(aPoints[0], aPoints[1], aPoints[2]));
532 std::shared_ptr<GeomAPI_Pnt2d> aCenter = aCircle->center();
534 aCenterAttr->setValue(aCenter);
537 data()->blockSendAttributeUpdated(false);
541 if (theID == RADIUS_ID()) {
542 if (!aStartAttr->isInitialized() || !anEndAttr->isInitialized() || !aCenterAttr->isInitialized())
544 // move center and passed point
545 std::shared_ptr<GeomAPI_Pnt2d> aStart = aStartAttr->pnt();
546 std::shared_ptr<GeomAPI_Pnt2d> anEnd = anEndAttr->pnt();
547 std::shared_ptr<GeomAPI_Pnt2d> aCenter = aCenterAttr->pnt();
548 if (aStart->distance(aCenter) < tolerance || anEnd->distance(aCenter) < tolerance)
550 AttributeDoublePtr aRadiusAttr = std::dynamic_pointer_cast<ModelAPI_AttributeDouble>(
551 data()->attribute(RADIUS_ID()));
552 double aRadius = aRadiusAttr->value();
554 data()->blockSendAttributeUpdated(true);
555 std::shared_ptr<GeomAPI_Dir2d> aStartDir(new GeomAPI_Dir2d(aStart->xy()->decreased(aCenter->xy())));
556 std::shared_ptr<GeomAPI_XY> aNewStart = aStartDir->xy()->multiplied(aRadius)->added(aCenter->xy());
557 aStartAttr->setValue(aNewStart->x(), aNewStart->y());
558 std::shared_ptr<GeomAPI_Dir2d> anEndDir(new GeomAPI_Dir2d(anEnd->xy()->decreased(aCenter->xy())));
559 std::shared_ptr<GeomAPI_XY> aNewEnd = anEndDir->xy()->multiplied(aRadius)->added(aCenter->xy());
560 anEndAttr->setValue(aNewEnd->x(), aNewEnd->y());
561 data()->blockSendAttributeUpdated(false);
564 if (theID == ANGLE_ID()) {
565 if (!aStartAttr->isInitialized() || !aCenterAttr->isInitialized())
567 AttributeDoublePtr anAngleAttr = std::dynamic_pointer_cast<ModelAPI_AttributeDouble>(
568 data()->attribute(ANGLE_ID()));
569 data()->blockSendAttributeUpdated(true);
570 // move end point and passed point
571 std::shared_ptr<GeomAPI_XY> aCenter = aCenterAttr->pnt()->xy();
572 double anAngle = anAngleAttr->value() * PI / 180.0;
573 double sinA = sin(anAngle);
574 double cosA = cos(anAngle);
575 std::shared_ptr<GeomAPI_XY> aStartDir = aStartAttr->pnt()->xy()->decreased(aCenter);
576 std::shared_ptr<GeomAPI_XY> aDir(new GeomAPI_XY(
577 aStartDir->x() * cosA - aStartDir->y() * sinA,
578 aStartDir->x() * sinA + aStartDir->y() * cosA));
579 anEndAttr->setValue(aCenter->x() + aDir->x(), aCenter->y() + aDir->y());
580 data()->blockSendAttributeUpdated(false);
585 void SketchPlugin_Arc::setReversed(bool isReversed)
587 std::dynamic_pointer_cast<ModelAPI_AttributeBoolean>(attribute(INVERSED_ID()))->setValue(isReversed);
591 bool SketchPlugin_Arc::isReversed()
593 return std::dynamic_pointer_cast<ModelAPI_AttributeBoolean>(attribute(INVERSED_ID()))->value();
596 void SketchPlugin_Arc::tangencyArcConstraints()
601 std::shared_ptr<GeomDataAPI_Point2D> aStartAttr =
602 std::dynamic_pointer_cast<GeomDataAPI_Point2D>(attribute(START_ID()));
603 AttributeRefAttrPtr aTangPtAttr = std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(
604 attribute(TANGENT_POINT_ID()));
605 if (!aTangPtAttr->attr())
608 FeaturePtr aFeature = ModelAPI_Feature::feature(aStartAttr->owner());
609 ObjectPtr aThisArc = aFeature->lastResult();
610 aFeature = ModelAPI_Feature::feature(aTangPtAttr->attr()->owner());
611 ObjectPtr aTangFeature = aFeature->lastResult();
613 // trying to find constraints to fix the tangency of the arc
614 std::set<FeaturePtr> aCoincidence;
615 std::set<FeaturePtr> aTangency;
617 AttributeRefAttrPtr aRefAttrA, aRefAttrB;
618 std::set<AttributePtr> aRefs = data()->refsToMe();
619 const std::set<AttributePtr>& aRefsToResult = lastResult()->data()->refsToMe();
620 aRefs.insert(aRefsToResult.begin(), aRefsToResult.end());
621 std::set<AttributePtr>::const_iterator aRefIt = aRefs.begin();
622 for (; aRefIt != aRefs.end(); ++aRefIt) {
623 FeaturePtr aConstrFeature = ModelAPI_Feature::feature((*aRefIt)->owner());
624 if (aConstrFeature->getKind() == SketchPlugin_ConstraintCoincidence::ID()) {
625 aRefAttrA = std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(
626 aConstrFeature->attribute(SketchPlugin_Constraint::ENTITY_A()));
627 aRefAttrB = std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(
628 aConstrFeature->attribute(SketchPlugin_Constraint::ENTITY_B()));
629 if ((aRefAttrA && aRefAttrA->attr() == aStartAttr) ||
630 (aRefAttrB && aRefAttrB->attr() == aStartAttr))
631 aCoincidence.insert(aConstrFeature);
633 else if (aConstrFeature->getKind() == SketchPlugin_ConstraintTangent::ID()) {
634 aRefAttrA = std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(
635 aConstrFeature->attribute(SketchPlugin_Constraint::ENTITY_A()));
636 aRefAttrB = std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(
637 aConstrFeature->attribute(SketchPlugin_Constraint::ENTITY_B()));
638 if ((aRefAttrA && aRefAttrA->object() == aThisArc) ||
639 (aRefAttrB && aRefAttrB->object() == aThisArc))
640 aTangency.insert(aConstrFeature);
643 // search applicable pair of constraints
644 bool isFound = false;
645 FeaturePtr aPrevCoincidence, aPrevTangency;
646 std::set<FeaturePtr>::const_iterator aCIt, aTIt;
647 for (aCIt = aCoincidence.begin(); aCIt != aCoincidence.end() && !isFound; ++aCIt) {
648 aRefAttrA = std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(
649 (*aCIt)->attribute(SketchPlugin_Constraint::ENTITY_A()));
650 aRefAttrB = std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(
651 (*aCIt)->attribute(SketchPlugin_Constraint::ENTITY_B()));
652 AttributePtr anOtherPoint =
653 aRefAttrA->attr() == aStartAttr ? aRefAttrB->attr() : aRefAttrA->attr();
654 for (aTIt = aTangency.begin(); aTIt != aTangency.end() && !isFound; ++aTIt) {
655 aRefAttrA = std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(
656 (*aTIt)->attribute(SketchPlugin_Constraint::ENTITY_A()));
657 aRefAttrB = std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(
658 (*aTIt)->attribute(SketchPlugin_Constraint::ENTITY_B()));
659 ObjectPtr anOtherObject = aRefAttrA->object() == aThisArc ?
660 aRefAttrB->object() : aRefAttrA->object();
661 FeaturePtr anOtherFeature = ModelAPI_Feature::feature(anOtherObject);
662 if (anOtherPoint->owner() == anOtherFeature) {
664 aPrevCoincidence = *aCIt;
665 aPrevTangency = *aTIt;
671 // update previous constraints
672 aRefAttrA = std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(
673 aPrevCoincidence->attribute(SketchPlugin_Constraint::ENTITY_A()));
674 aRefAttrB = std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(
675 aPrevCoincidence->attribute(SketchPlugin_Constraint::ENTITY_B()));
676 if (aRefAttrA->attr() == aStartAttr)
677 aRefAttrB->setAttr(aTangPtAttr->attr());
679 aRefAttrA->setAttr(aTangPtAttr->attr());
681 aRefAttrA = std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(
682 aPrevTangency->attribute(SketchPlugin_Constraint::ENTITY_A()));
683 aRefAttrB = std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(
684 aPrevTangency->attribute(SketchPlugin_Constraint::ENTITY_B()));
685 if (aRefAttrA->object() == aThisArc)
686 aRefAttrB->setObject(aTangFeature);
688 aRefAttrA->setObject(aTangFeature);
690 // Wait all constraints being removed, then send update events
691 static Events_ID aDeleteEvent = Events_Loop::eventByName(EVENT_OBJECT_DELETED);
692 bool isDeleteFlushed = Events_Loop::loop()->isFlushed(aDeleteEvent);
694 Events_Loop::loop()->setFlushed(aDeleteEvent, false);
695 // Remove all obtained constraints which use current arc, because
696 // there is no information which of them were used to build tangency arc.
697 DocumentPtr aDoc = sketch()->document();
698 std::set<FeaturePtr> aFeaturesToBeRemoved;
699 for (aCIt = aCoincidence.begin(); aCIt != aCoincidence.end(); ++aCIt)
700 aFeaturesToBeRemoved.insert(*aCIt);
701 for (aTIt = aTangency.begin(); aTIt != aTangency.end(); ++aTIt)
702 aFeaturesToBeRemoved.insert(*aTIt);
703 ModelAPI_Tools::removeFeaturesAndReferences(aFeaturesToBeRemoved);
704 // Send events to update the sub-features by the solver.
706 Events_Loop::loop()->setFlushed(aDeleteEvent, true);
708 Events_Loop::loop()->flush(aDeleteEvent);
710 // Wait all constraints being created, then send update events
711 static Events_ID aCreateEvent = Events_Loop::eventByName(EVENT_OBJECT_CREATED);
712 bool isCreateFlushed = Events_Loop::loop()->isFlushed(aCreateEvent);
714 Events_Loop::loop()->setFlushed(aCreateEvent, false);
716 // Create new constraints
717 FeaturePtr aConstraint = sketch()->addFeature(SketchPlugin_ConstraintCoincidence::ID());
718 aRefAttrA = std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(
719 aConstraint->attribute(SketchPlugin_Constraint::ENTITY_A()));
720 aRefAttrB = std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(
721 aConstraint->attribute(SketchPlugin_Constraint::ENTITY_B()));
722 aRefAttrA->setAttr(aStartAttr);
723 aRefAttrB->setAttr(aTangPtAttr->attr());
724 aConstraint->execute();
725 ModelAPI_EventCreator::get()->sendUpdated(aConstraint, aCreateEvent);
727 aConstraint = sketch()->addFeature(SketchPlugin_ConstraintTangent::ID());
728 aRefAttrA = std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(
729 aConstraint->attribute(SketchPlugin_Constraint::ENTITY_A()));
730 aRefAttrB = std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(
731 aConstraint->attribute(SketchPlugin_Constraint::ENTITY_B()));
732 aRefAttrA->setObject(aThisArc);
733 aRefAttrB->setObject(aTangFeature);
734 aConstraint->execute();
735 ModelAPI_EventCreator::get()->sendUpdated(aConstraint, aCreateEvent);
737 // Send events to update the sub-features by the solver.
739 Events_Loop::loop()->setFlushed(aCreateEvent, true);
741 Events_Loop::loop()->flush(aCreateEvent);