1 // Copyright (C) 2014-20xx CEA/DEN, EDF R&D -->
3 // File: SketchPlugin_Arc.cpp
4 // Created: 26 Apr 2014
5 // Author: Artem ZHIDKOV
7 #include "SketchPlugin_Arc.h"
8 #include "SketchPlugin_Sketch.h"
9 #include <SketchPlugin_ConstraintCoincidence.h>
10 #include <SketchPlugin_ConstraintTangent.h>
12 #include <Events_Loop.h>
13 #include <ModelAPI_Data.h>
14 #include <ModelAPI_ResultConstruction.h>
15 #include <ModelAPI_AttributeDouble.h>
16 #include <ModelAPI_AttributeRefAttr.h>
17 #include <ModelAPI_AttributeSelection.h>
18 #include <ModelAPI_AttributeString.h>
19 #include <ModelAPI_Events.h>
20 #include <ModelAPI_Validator.h>
21 #include <ModelAPI_Session.h>
22 #include <ModelAPI_Tools.h>
24 #include <GeomAPI_Ax2.h>
25 #include <GeomAPI_Circ2d.h>
26 #include <GeomAPI_Circ.h>
27 #include <GeomAPI_Dir2d.h>
28 #include <GeomAPI_Dir.h>
29 #include <GeomAPI_Lin2d.h>
30 #include <GeomAPI_Lin.h>
31 #include <GeomAPI_Pnt2d.h>
32 #include <GeomAPI_Vertex.h>
33 #include <GeomAPI_XY.h>
34 #include <GeomDataAPI_Point2D.h>
35 #include <GeomDataAPI_Dir.h>
36 #include <GeomAlgoAPI_PointBuilder.h>
37 #include <GeomAlgoAPI_EdgeBuilder.h>
38 #include <GeomAlgoAPI_CompoundBuilder.h>
42 const double tolerance = 1e-7;
43 const double paramTolerance = 1.e-4;
44 const double PI = 3.141592653589793238463;
47 static const std::string& POINT_ID(int theIndex)
50 case 1: return SketchPlugin_Arc::START_ID();
51 case 2: return SketchPlugin_Arc::END_ID();
52 case 3: return SketchPlugin_Arc::PASSED_POINT_ID();
55 static const std::string DUMMY;
62 SketchPlugin_Arc::SketchPlugin_Arc()
63 : SketchPlugin_SketchEntity()
65 myStartUpdate = false;
71 myParamBefore = PI * 2.0;
74 void SketchPlugin_Arc::initDerivedClassAttributes()
76 data()->addAttribute(CENTER_ID(), GeomDataAPI_Point2D::typeId());
77 data()->addAttribute(START_ID(), GeomDataAPI_Point2D::typeId());
78 std::shared_ptr<GeomDataAPI_Point2D> anEndAttr = std::dynamic_pointer_cast<
79 GeomDataAPI_Point2D>(data()->addAttribute(END_ID(), GeomDataAPI_Point2D::typeId()));
80 data()->addAttribute(EXTERNAL_ID(), ModelAPI_AttributeSelection::typeId());
81 ModelAPI_Session::get()->validators()->registerNotObligatory(getKind(), EXTERNAL_ID());
83 AttributeBooleanPtr isInversed = std::dynamic_pointer_cast<ModelAPI_AttributeBoolean>(
84 data()->addAttribute(INVERSED_ID(), ModelAPI_AttributeBoolean::typeId()));
86 // get the initial values
87 if (anEndAttr->isInitialized()) {
88 myXEndBefore = anEndAttr->x();
89 myYEndBefore = anEndAttr->y();
92 AttributeStringPtr anArcType = std::dynamic_pointer_cast<ModelAPI_AttributeString>(
93 data()->addAttribute(ARC_TYPE(), ModelAPI_AttributeString::typeId()));
95 data()->addAttribute(PASSED_POINT_ID(), GeomDataAPI_Point2D::typeId());
96 data()->addAttribute(TANGENT_POINT_ID(), ModelAPI_AttributeRefAttr::typeId());
97 data()->addAttribute(RADIUS_ID(), ModelAPI_AttributeDouble::typeId());
98 data()->addAttribute(ANGLE_ID(), ModelAPI_AttributeDouble::typeId());
100 // set after all to avoid in attributeChanged reference to not existing attributes
101 if (!isInversed->isInitialized())
102 isInversed->setValue(false);
103 anArcType->setValue(ARC_TYPE_CENTER_START_END());
106 void SketchPlugin_Arc::execute()
108 SketchPlugin_Sketch* aSketch = sketch();
109 // result for the arc is set only when all obligatory attributes are initialized,
110 // otherwise AIS object is used to visualize the arc's preview
111 if (aSketch && isFeatureValid()) {
112 bool hasResult = lastResult().get() != NULL;
114 // compute a circle point in 3D view
115 std::shared_ptr<GeomDataAPI_Point2D> aCenterAttr = std::dynamic_pointer_cast<
116 GeomDataAPI_Point2D>(data()->attribute(CENTER_ID()));
117 // compute the arc start point
118 std::shared_ptr<GeomDataAPI_Point2D> aStartAttr = std::dynamic_pointer_cast<
119 GeomDataAPI_Point2D>(data()->attribute(START_ID()));
121 std::shared_ptr<GeomAPI_Pnt> aCenter(aSketch->to3D(aCenterAttr->x(), aCenterAttr->y()));
122 // make a visible point
123 std::shared_ptr<GeomAPI_Shape> aCenterPointShape = GeomAlgoAPI_PointBuilder::vertex(aCenter);
124 std::shared_ptr<ModelAPI_ResultConstruction> aConstr1 = document()->createConstruction(
126 aConstr1->setShape(aCenterPointShape);
127 aConstr1->setIsInHistory(false);
128 setResult(aConstr1, 0);
130 // make a visible circle
131 std::shared_ptr<GeomDataAPI_Dir> aNDir = std::dynamic_pointer_cast<GeomDataAPI_Dir>(
132 aSketch->data()->attribute(SketchPlugin_Sketch::NORM_ID()));
133 std::shared_ptr<GeomAPI_Dir> aNormal = aNDir->dir();
134 std::shared_ptr<GeomAPI_Pnt> aStartPoint(aSketch->to3D(aStartAttr->x(), aStartAttr->y()));
136 // compute and change the arc end point
137 std::shared_ptr<GeomDataAPI_Point2D> anEndAttr = std::dynamic_pointer_cast<
138 GeomDataAPI_Point2D>(data()->attribute(END_ID()));
139 std::shared_ptr<GeomAPI_Circ2d> aCircleForArc(
140 new GeomAPI_Circ2d(aCenterAttr->pnt(), aStartAttr->pnt()));
141 std::shared_ptr<GeomAPI_Pnt2d> aProjection = aCircleForArc->project(anEndAttr->pnt());
142 if (aProjection && anEndAttr->pnt()->distance(aProjection) > tolerance)
143 anEndAttr->setValue(aProjection);
144 std::shared_ptr<GeomAPI_Pnt> aEndPoint(aSketch->to3D(anEndAttr->x(), anEndAttr->y()));
145 AttributeBooleanPtr isInversed =
146 std::dynamic_pointer_cast<ModelAPI_AttributeBoolean>(attribute(INVERSED_ID()));
148 // compute end parameter
149 aCircleForArc->parameter(anEndAttr->pnt(), paramTolerance, myParamBefore);
151 std::shared_ptr<GeomAPI_Shape> aCircleShape;
152 if(!isInversed->value()) {
153 aCircleShape = GeomAlgoAPI_EdgeBuilder::lineCircleArc(aCenter, aStartPoint, aEndPoint, aNormal);
155 aCircleShape = GeomAlgoAPI_EdgeBuilder::lineCircleArc(aCenter, aEndPoint, aStartPoint, aNormal);
159 std::shared_ptr<ModelAPI_ResultConstruction> aConstr2 = document()->createConstruction(
161 aConstr2->setShape(aCircleShape);
162 aConstr2->setIsInHistory(false);
163 setResult(aConstr2, 1);
168 AISObjectPtr SketchPlugin_Arc::getAISObject(AISObjectPtr thePrevious)
170 SketchPlugin_Sketch* aSketch = sketch();
172 // if the feature is valid, the execute() method should be performed, AIS object is empty
173 if (!isFeatureValid()) {
174 // compute a circle point in 3D view
175 std::shared_ptr<GeomDataAPI_Point2D> aCenterAttr = std::dynamic_pointer_cast<
176 GeomDataAPI_Point2D>(data()->attribute(CENTER_ID()));
178 std::list<std::shared_ptr<GeomAPI_Shape> > aShapes;
179 if (aCenterAttr->isInitialized()) {
180 std::shared_ptr<GeomAPI_Pnt> aCenter(aSketch->to3D(aCenterAttr->x(), aCenterAttr->y()));
182 std::shared_ptr<GeomDataAPI_Point2D> aStartAttr = std::dynamic_pointer_cast<
183 GeomDataAPI_Point2D>(data()->attribute(SketchPlugin_Arc::START_ID()));
184 std::shared_ptr<GeomDataAPI_Point2D> aEndAttr = std::dynamic_pointer_cast<
185 GeomDataAPI_Point2D>(data()->attribute(SketchPlugin_Arc::END_ID()));
186 AttributeStringPtr aTypeAttr = std::dynamic_pointer_cast<ModelAPI_AttributeString>(
187 data()->attribute(ARC_TYPE()));
189 if (aStartAttr->isInitialized()) {
190 // make a visible circle
191 std::shared_ptr<GeomDataAPI_Dir> aNDir = std::dynamic_pointer_cast<GeomDataAPI_Dir>(
192 aSketch->data()->attribute(SketchPlugin_Sketch::NORM_ID()));
193 bool aHasPlane = aNDir && !(aNDir->x() == 0 && aNDir->y() == 0 && aNDir->z() == 0);
195 std::shared_ptr<GeomAPI_Dir> aNormal = aNDir->dir();
196 std::shared_ptr<GeomAPI_Pnt> aStartPoint(aSketch->to3D(aStartAttr->x(), aStartAttr->y()));
197 std::shared_ptr<GeomAPI_Pnt> aEndPoint = aStartPoint;
198 if (aTypeAttr && aTypeAttr->isInitialized() &&
199 aTypeAttr->value() == ARC_TYPE_THREE_POINTS()) {
200 if (aEndAttr->isInitialized() && //
201 aEndAttr->pnt()->distance(aStartAttr->pnt()) > tolerance) {
202 aEndPoint = aSketch->to3D(aEndAttr->x(), aEndAttr->y());
203 std::shared_ptr<GeomDataAPI_Point2D> aPassedAttr =
204 std::dynamic_pointer_cast<GeomDataAPI_Point2D>(data()->attribute(PASSED_POINT_ID()));
205 if (!aPassedAttr->isInitialized()) { // calculate the appropriate center for the presentation
206 // check that center is bad for the current start and end and must be recomputed
207 std::shared_ptr<GeomAPI_Circ2d> aCircleForArc(new GeomAPI_Circ2d(
208 aCenterAttr->pnt(), aStartAttr->pnt()));
209 std::shared_ptr<GeomAPI_Pnt2d> aProjection = aCircleForArc->project(aEndAttr->pnt());
210 if (!aProjection.get() || aEndAttr->pnt()->distance(aProjection) > tolerance) {
211 std::shared_ptr<GeomAPI_XY> aDir =
212 aEndAttr->pnt()->xy()->decreased(aStartAttr->pnt()->xy())->multiplied(0.5);
213 double x = aDir->x();
214 double y = aDir->y();
217 std::shared_ptr<GeomAPI_XY> aCenterXY = aStartAttr->pnt()->xy()->added(aDir);
218 aCenter = aSketch->to3D(aCenterXY->x(), aCenterXY->y());
221 } else { // issue #1695: don't display circle if initialized only start point
222 return AISObjectPtr();
225 AttributeBooleanPtr isInversed =
226 std::dynamic_pointer_cast<ModelAPI_AttributeBoolean>(attribute(INVERSED_ID()));
228 std::shared_ptr<GeomAPI_Shape> aCircleShape =
229 (isInversed->isInitialized() && isInversed->value()) ?
230 GeomAlgoAPI_EdgeBuilder::lineCircleArc(aCenter, aEndPoint, aStartPoint, aNormal) :
231 GeomAlgoAPI_EdgeBuilder::lineCircleArc(aCenter, aStartPoint, aEndPoint, aNormal);
234 aShapes.push_back(aCircleShape);
237 // make a visible point
238 std::shared_ptr<GeomAPI_Shape> aCenterPointShape = GeomAlgoAPI_PointBuilder::vertex(aCenter);
239 aShapes.push_back(aCenterPointShape);
241 if (!aShapes.empty()) {
242 std::shared_ptr<GeomAPI_Shape> aCompound = GeomAlgoAPI_CompoundBuilder::compound(aShapes);
243 AISObjectPtr anAIS = thePrevious;
245 anAIS = AISObjectPtr(new GeomAPI_AISObject);
246 anAIS->createShape(aCompound);
247 double aDeflection = Config_PropManager::real("Visualization", "construction_deflection",
248 ModelAPI_ResultConstruction::DEFAULT_DEFLECTION());
249 anAIS->setDeflection(aDeflection);
255 return AISObjectPtr();
258 void SketchPlugin_Arc::move(double theDeltaX, double theDeltaY)
260 std::shared_ptr<ModelAPI_Data> aData = data();
261 if (!aData->isValid())
264 aData->blockSendAttributeUpdated(true);
266 myStartUpdate = true;
268 std::shared_ptr<GeomDataAPI_Point2D> aPoint2 = std::dynamic_pointer_cast<GeomDataAPI_Point2D>(
269 aData->attribute(SketchPlugin_Arc::START_ID()));
270 if (aPoint2->isInitialized())
271 aPoint2->move(theDeltaX, theDeltaY);
273 std::shared_ptr<GeomDataAPI_Point2D> aPoint3 = std::dynamic_pointer_cast<GeomDataAPI_Point2D>(
274 aData->attribute(SketchPlugin_Arc::END_ID()));
275 if (aPoint3->isInitialized())
276 aPoint3->move(theDeltaX, theDeltaY);
277 myStartUpdate = false;
280 std::shared_ptr<GeomDataAPI_Point2D> aPoint1 = std::dynamic_pointer_cast<GeomDataAPI_Point2D>(
281 aData->attribute(SketchPlugin_Arc::CENTER_ID()));
282 if (aPoint1->isInitialized())
283 aPoint1->move(theDeltaX, theDeltaY);
285 std::shared_ptr<GeomDataAPI_Point2D> aPassedPoint =
286 std::dynamic_pointer_cast<GeomDataAPI_Point2D>(aData->attribute(PASSED_POINT_ID()));
287 if (aPassedPoint->isInitialized())
288 aPassedPoint->move(theDeltaX, theDeltaY);
289 aData->blockSendAttributeUpdated(false);
292 bool SketchPlugin_Arc::isFixed() {
293 return data()->selection(EXTERNAL_ID())->context().get() != NULL;
296 bool SketchPlugin_Arc::isFeatureValid()
298 AttributeStringPtr anArcTypeAttr =
299 std::dynamic_pointer_cast<ModelAPI_AttributeString>(data()->attribute(ARC_TYPE()));
302 std::string anArcType = anArcTypeAttr->value();
304 std::shared_ptr<GeomDataAPI_Point2D> aCenterAttr = std::dynamic_pointer_cast<
305 GeomDataAPI_Point2D>(data()->attribute(SketchPlugin_Arc::CENTER_ID()));
306 std::shared_ptr<GeomDataAPI_Point2D> aStartAttr = std::dynamic_pointer_cast<
307 GeomDataAPI_Point2D>(data()->attribute(SketchPlugin_Arc::START_ID()));
308 std::shared_ptr<GeomDataAPI_Point2D> anEndAttr = std::dynamic_pointer_cast<
309 GeomDataAPI_Point2D>(data()->attribute(SketchPlugin_Arc::END_ID()));
310 std::shared_ptr<GeomDataAPI_Point2D> aPassedAttr = std::dynamic_pointer_cast<
311 GeomDataAPI_Point2D>(data()->attribute(PASSED_POINT_ID()));
313 bool isValid = false;
314 if (anArcType == ARC_TYPE_THREE_POINTS())
315 isValid = aStartAttr->isInitialized() && anEndAttr->isInitialized() && aPassedAttr->isInitialized();
317 isValid = aCenterAttr->isInitialized() && aStartAttr->isInitialized() && anEndAttr->isInitialized();
322 static inline void adjustPeriod(double& theParam)
324 static const double PERIOD = 2.0 * PI;
325 while (theParam < 0.0) theParam += PERIOD;
326 while (theParam >= PERIOD) theParam -= PERIOD;
329 void SketchPlugin_Arc::attributeChanged(const std::string& theID)
331 std::shared_ptr<GeomDataAPI_Point2D> aCenterAttr = std::dynamic_pointer_cast<
332 GeomDataAPI_Point2D>(data()->attribute(CENTER_ID()));
333 std::shared_ptr<GeomDataAPI_Point2D> aStartAttr = std::dynamic_pointer_cast<
334 GeomDataAPI_Point2D>(data()->attribute(START_ID()));
335 std::shared_ptr<GeomDataAPI_Point2D> anEndAttr = std::dynamic_pointer_cast<
336 GeomDataAPI_Point2D>(data()->attribute(END_ID()));
337 // the second condition for unability to move external segments anywhere
338 if (theID == EXTERNAL_ID() || isFixed()) {
339 std::shared_ptr<GeomAPI_Shape> aSelection = data()->selection(EXTERNAL_ID())->value();
341 // empty shape in selection shows that the shape is equal to context
342 ResultPtr anExtRes = selection(EXTERNAL_ID())->context();
344 aSelection = anExtRes->shape();
346 // update arguments due to the selection value
347 if (aSelection && !aSelection->isNull() && aSelection->isEdge()) {
348 std::shared_ptr<GeomAPI_Edge> anEdge( new GeomAPI_Edge(aSelection));
349 std::shared_ptr<GeomAPI_Circ> aCirc = anEdge->circle();
351 aStartAttr->setValue(sketch()->to2D(anEdge->firstPoint()));
352 anEndAttr->setValue(sketch()->to2D(anEdge->lastPoint()));
353 aCenterAttr->setValue(sketch()->to2D(aCirc->center()));
355 data()->real(RADIUS_ID())->setValue(aCirc->radius());
356 double aStartAngle, aEndAngle;
357 anEdge->getRange(aStartAngle, aEndAngle);
358 data()->real(ANGLE_ID())->setValue(aEndAngle - aStartAngle);
359 myParamBefore = aEndAngle;
360 adjustPeriod(myParamBefore);
365 AttributeStringPtr aTypeAttr =
366 std::dynamic_pointer_cast<ModelAPI_AttributeString>(attribute(ARC_TYPE()));
368 // this is before others since here end attribute may be changed, but with the special behavior
369 if (aTypeAttr->value() == ARC_TYPE_TANGENT() && (theID == TANGENT_POINT_ID() || theID == END_ID())) {
370 SketchPlugin_Sketch* aSketch = sketch();
371 AttributeRefAttrPtr aTangPtAttr = std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(
372 data()->attribute(TANGENT_POINT_ID()));
374 if (aTangPtAttr->isInitialized() && anEndAttr->isInitialized()) {
375 // compute orthogonal direction
376 std::shared_ptr<GeomAPI_Dir2d> anOrthoDir;
377 std::shared_ptr<GeomDataAPI_Point2D> aTangentPoint =
378 std::dynamic_pointer_cast<GeomDataAPI_Point2D>(aTangPtAttr->attr());
379 std::shared_ptr<GeomAPI_Pnt2d> aTangPnt2d = aTangentPoint->pnt();
380 if (aTangPnt2d->isEqual(anEndAttr->pnt()))
382 FeaturePtr aTangFeature = ModelAPI_Feature::feature(aTangentPoint->owner());
383 std::shared_ptr<GeomAPI_Edge> aTangEdge = std::dynamic_pointer_cast<GeomAPI_Edge>(
384 aTangFeature->lastResult()->shape());
385 if (aTangEdge->isLine()) {
386 std::shared_ptr<GeomAPI_Dir> aDir = aTangEdge->line()->direction();
387 std::shared_ptr<GeomAPI_Pnt> aPnt(new GeomAPI_Pnt(aDir->x(), aDir->y(), aDir->z()));
388 std::shared_ptr<GeomAPI_Pnt2d> aPnt2d = aSketch->to2D(aPnt);
389 anOrthoDir = std::shared_ptr<GeomAPI_Dir2d>(new GeomAPI_Dir2d(-aPnt2d->y(), aPnt2d->x()));
391 else if (aTangEdge->isArc()) {
392 std::shared_ptr<GeomAPI_Pnt> aCenter = aTangEdge->circle()->center();
393 std::shared_ptr<GeomAPI_Pnt2d> aCenter2d = aSketch->to2D(aCenter);
394 anOrthoDir = std::shared_ptr<GeomAPI_Dir2d>(
395 new GeomAPI_Dir2d(aTangPnt2d->xy()->decreased(aCenter2d->xy())));
398 // compute parameters of the middle perpendicular
399 std::shared_ptr<GeomAPI_XY> aEndPntCoord = anEndAttr->pnt()->xy();
400 std::shared_ptr<GeomAPI_XY> aTempDir = aEndPntCoord->decreased(aTangPnt2d->xy());
401 std::shared_ptr<GeomAPI_Dir2d> aMidDir(new GeomAPI_Dir2d(-aTempDir->y(), aTempDir->x()));
402 std::shared_ptr<GeomAPI_Pnt2d> aMidPnt(
403 new GeomAPI_Pnt2d(aEndPntCoord->added(aTangPnt2d->xy())->multiplied(0.5)));
405 // compute center of arc by calculating intersection of orthogonal line and middle perpendicular
406 std::shared_ptr<GeomAPI_Lin2d> anOrthoLine(new GeomAPI_Lin2d(aTangPnt2d, anOrthoDir));
407 std::shared_ptr<GeomAPI_Lin2d> aMiddleLine(new GeomAPI_Lin2d(aMidPnt, aMidDir));
408 std::shared_ptr<GeomAPI_Pnt2d> aCenter = anOrthoLine->intersect(aMiddleLine);
410 data()->blockSendAttributeUpdated(true);
411 aCenterAttr->setValue(aCenter);
412 aStartAttr->setValue(aTangPnt2d);
413 data()->blockSendAttributeUpdated(false);
416 tangencyArcConstraints();
421 // if changed the base attributes, update all other (is necessary) without recursion
422 if (theID == CENTER_ID() || theID == START_ID() || theID == END_ID() || theID == ARC_TYPE()) {
423 if (!isFeatureValid())
425 std::shared_ptr<GeomAPI_Pnt2d> aCenter = aCenterAttr->pnt();
426 std::shared_ptr<GeomAPI_Pnt2d> aStart = aStartAttr->pnt();
427 std::shared_ptr<GeomAPI_Pnt2d> anEnd = anEndAttr->pnt();
428 double aRadius = aCenter->distance(aStart);
429 if (aRadius < tolerance)
431 std::shared_ptr<GeomAPI_Circ2d> aCircleForArc(new GeomAPI_Circ2d(aCenter, aStart));
433 data()->blockSendAttributeUpdated(true);
434 if (theID == END_ID() && isStable()) {
435 // The arc is under construction, so its end point projected
436 // on the circle formed by center and start points
437 std::shared_ptr<GeomAPI_Pnt2d> aProjection = aCircleForArc->project(anEnd);
438 if (aProjection && anEnd->distance(aProjection) > tolerance) {
439 anEndAttr->setValue(aProjection);
443 // update all other attributes due to the base attributes values
444 if (aTypeAttr->value() == ARC_TYPE_THREE_POINTS()) { // update passed point due to start, end and center
445 if (aCenter->distance(aStart) > tolerance && aCenter->distance(anEnd) > tolerance) {
446 // project passed point t othe circle
447 std::shared_ptr<GeomDataAPI_Point2D> aPassedAttr =
448 std::dynamic_pointer_cast<GeomDataAPI_Point2D>(data()->attribute(PASSED_POINT_ID()));
449 if (aPassedAttr->isInitialized()) {
450 std::shared_ptr<GeomAPI_Pnt2d> aProjection = aCircleForArc->project(aPassedAttr->pnt());
451 if (aProjection && aPassedAttr->pnt()->distance(aProjection) > tolerance) {
452 aPassedAttr->setValue(aProjection);
454 } else { // initialize it by some middle - value
455 std::shared_ptr<GeomAPI_Dir2d> aStartDir(new GeomAPI_Dir2d(
456 aStart->xy()->decreased(aCenter->xy())));
457 std::shared_ptr<GeomAPI_Dir2d> aEndDir(new GeomAPI_Dir2d(
458 anEnd->xy()->decreased(aCenter->xy())));
459 std::shared_ptr<GeomAPI_XY> aMidDirXY = aStartDir->xy()->added(aEndDir->xy());
460 if (aMidDirXY->dot(aMidDirXY) < tolerance * tolerance) {
461 // start and end directions are opposite, so middle direction will be orthogonal
462 aMidDirXY->setX(-aStartDir->y());
463 aMidDirXY->setY(aStartDir->x());
465 std::shared_ptr<GeomAPI_Dir2d> aMidDir(new GeomAPI_Dir2d(aMidDirXY));
466 if ((aStartDir->cross(aMidDir) > 0) ^ !isReversed())
468 std::shared_ptr<GeomAPI_XY> aPassedPnt =
469 aCenter->xy()->added(aMidDir->xy()->multiplied(aCenter->distance(aStart)));
470 std::dynamic_pointer_cast<GeomDataAPI_Point2D>(data()->attribute(PASSED_POINT_ID()))->
471 setValue(aPassedPnt->x(), aPassedPnt->y());
475 // update radius and angle
476 AttributeDoublePtr aRadiusAttr = std::dynamic_pointer_cast<ModelAPI_AttributeDouble>(
477 data()->attribute(RADIUS_ID()));
478 aRadiusAttr->setValue(aRadius);
479 AttributeDoublePtr anAngleAttr = std::dynamic_pointer_cast<ModelAPI_AttributeDouble>(
480 data()->attribute(ANGLE_ID()));
481 std::shared_ptr<GeomAPI_Circ2d> aCircle(new GeomAPI_Circ2d(aCenter, aStart));
482 double aStartParam, aEndParam;
483 aCircle->parameter(aStart, paramTolerance, aStartParam);
484 aCircle->parameter(anEnd, paramTolerance, aEndParam);
485 adjustPeriod(aStartParam);
486 adjustPeriod(aEndParam);
487 if (aTypeAttr->value() == ARC_TYPE_THREE_POINTS()) { // use the passed point for the angle calculation
488 std::shared_ptr<GeomDataAPI_Point2D> aPassedAttr =
489 std::dynamic_pointer_cast<GeomDataAPI_Point2D>(data()->attribute(PASSED_POINT_ID()));
491 aCircle->parameter(aPassedAttr->pnt(), paramTolerance, aPassedParam);
492 adjustPeriod(aPassedParam);
493 double aNewAngle = aPassedParam >= aStartParam && aPassedParam <= aEndParam ?
494 ((aEndParam - aStartParam) * 180.0 / PI) :
495 ((aEndParam - aStartParam - 2.0 * PI) * 180.0 / PI);
496 if (!anAngleAttr->isInitialized() || fabs(aNewAngle - anAngleAttr->value()) > tolerance)
497 anAngleAttr->setValue(aNewAngle);
499 double aNewAngle = (aEndParam - aStartParam) * 180.0 / PI;
500 if (!anAngleAttr->isInitialized() || fabs(aNewAngle - anAngleAttr->value()) > tolerance)
501 anAngleAttr->setValue(aNewAngle);
504 // calculate arc aperture and change the Inversed flag if needed
505 AttributeBooleanPtr isInversed =
506 std::dynamic_pointer_cast<ModelAPI_AttributeBoolean>(attribute(INVERSED_ID()));
507 double aParameterNew = aEndParam - aStartParam;
508 if (0 <= myParamBefore && myParamBefore <= PI / 2.0 &&
509 PI * 1.5 <= aParameterNew && aParameterNew <= PI * 2.0)
510 isInversed->setValue(true);
511 else if (PI * 1.5 <= myParamBefore && myParamBefore <= PI * 2.0 &&
512 0 <= aParameterNew && aParameterNew <= PI / 2.0)
513 isInversed->setValue(false);
514 myParamBefore = aParameterNew;
516 // do not need to inform that other parameters were changed in this basis mode: these arguments
518 data()->blockSendAttributeUpdated(false, false);
522 if (theID == PASSED_POINT_ID()) {
523 data()->blockSendAttributeUpdated(true);
525 std::shared_ptr<GeomAPI_Pnt2d> aPoints[3];
526 int aNbInitialized = 0;
527 for (int i = 1; i <= 3; ++i) {
528 std::shared_ptr<GeomDataAPI_Point2D> aCurPnt =
529 std::dynamic_pointer_cast<GeomDataAPI_Point2D>(attribute(POINT_ID(i)));
530 if (aCurPnt->isInitialized())
531 aPoints[aNbInitialized++] = aCurPnt->pnt();
534 if (aNbInitialized == 3) {
535 std::shared_ptr<GeomAPI_Circ2d> aCircle(
536 new GeomAPI_Circ2d(aPoints[0], aPoints[1], aPoints[2]));
538 std::shared_ptr<GeomAPI_Pnt2d> aCenter = aCircle->center();
540 aCenterAttr->setValue(aCenter);
543 data()->blockSendAttributeUpdated(false);
547 if (theID == RADIUS_ID()) {
548 if (!aStartAttr->isInitialized() || !anEndAttr->isInitialized() || !aCenterAttr->isInitialized())
550 // move center and passed point
551 std::shared_ptr<GeomAPI_Pnt2d> aStart = aStartAttr->pnt();
552 std::shared_ptr<GeomAPI_Pnt2d> anEnd = anEndAttr->pnt();
553 std::shared_ptr<GeomAPI_Pnt2d> aCenter = aCenterAttr->pnt();
554 if (aStart->distance(aCenter) < tolerance || anEnd->distance(aCenter) < tolerance)
556 AttributeDoublePtr aRadiusAttr = std::dynamic_pointer_cast<ModelAPI_AttributeDouble>(
557 data()->attribute(RADIUS_ID()));
558 double aRadius = aRadiusAttr->value();
560 data()->blockSendAttributeUpdated(true);
561 std::shared_ptr<GeomAPI_Dir2d> aStartDir(new GeomAPI_Dir2d(aStart->xy()->decreased(aCenter->xy())));
562 std::shared_ptr<GeomAPI_XY> aNewStart = aStartDir->xy()->multiplied(aRadius)->added(aCenter->xy());
563 aStartAttr->setValue(aNewStart->x(), aNewStart->y());
564 std::shared_ptr<GeomAPI_Dir2d> anEndDir(new GeomAPI_Dir2d(anEnd->xy()->decreased(aCenter->xy())));
565 std::shared_ptr<GeomAPI_XY> aNewEnd = anEndDir->xy()->multiplied(aRadius)->added(aCenter->xy());
566 anEndAttr->setValue(aNewEnd->x(), aNewEnd->y());
567 data()->blockSendAttributeUpdated(false);
570 if (theID == ANGLE_ID()) {
571 if (!aStartAttr->isInitialized() || !aCenterAttr->isInitialized())
573 AttributeDoublePtr anAngleAttr = std::dynamic_pointer_cast<ModelAPI_AttributeDouble>(
574 data()->attribute(ANGLE_ID()));
575 data()->blockSendAttributeUpdated(true);
576 // move end point and passed point
577 std::shared_ptr<GeomAPI_XY> aCenter = aCenterAttr->pnt()->xy();
578 double anAngle = anAngleAttr->value() * PI / 180.0;
579 double sinA = sin(anAngle);
580 double cosA = cos(anAngle);
581 std::shared_ptr<GeomAPI_XY> aStartDir = aStartAttr->pnt()->xy()->decreased(aCenter);
582 std::shared_ptr<GeomAPI_XY> aDir(new GeomAPI_XY(
583 aStartDir->x() * cosA - aStartDir->y() * sinA,
584 aStartDir->x() * sinA + aStartDir->y() * cosA));
585 anEndAttr->setValue(aCenter->x() + aDir->x(), aCenter->y() + aDir->y());
586 data()->blockSendAttributeUpdated(false);
591 void SketchPlugin_Arc::setReversed(bool isReversed)
593 std::dynamic_pointer_cast<ModelAPI_AttributeBoolean>(attribute(INVERSED_ID()))->setValue(isReversed);
597 bool SketchPlugin_Arc::isReversed()
599 return std::dynamic_pointer_cast<ModelAPI_AttributeBoolean>(attribute(INVERSED_ID()))->value();
602 void SketchPlugin_Arc::tangencyArcConstraints()
607 std::shared_ptr<GeomDataAPI_Point2D> aStartAttr =
608 std::dynamic_pointer_cast<GeomDataAPI_Point2D>(attribute(START_ID()));
609 AttributeRefAttrPtr aTangPtAttr = std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(
610 attribute(TANGENT_POINT_ID()));
611 if (!aTangPtAttr->attr())
614 FeaturePtr aFeature = ModelAPI_Feature::feature(aStartAttr->owner());
615 ObjectPtr aThisArc = aFeature->lastResult();
616 aFeature = ModelAPI_Feature::feature(aTangPtAttr->attr()->owner());
617 ObjectPtr aTangFeature = aFeature->lastResult();
619 // trying to find constraints to fix the tangency of the arc
620 std::set<FeaturePtr> aCoincidence;
621 std::set<FeaturePtr> aTangency;
623 AttributeRefAttrPtr aRefAttrA, aRefAttrB;
624 std::set<AttributePtr> aRefs = data()->refsToMe();
625 const std::set<AttributePtr>& aRefsToResult = lastResult()->data()->refsToMe();
626 aRefs.insert(aRefsToResult.begin(), aRefsToResult.end());
627 std::set<AttributePtr>::const_iterator aRefIt = aRefs.begin();
628 for (; aRefIt != aRefs.end(); ++aRefIt) {
629 FeaturePtr aConstrFeature = ModelAPI_Feature::feature((*aRefIt)->owner());
630 if (aConstrFeature->getKind() == SketchPlugin_ConstraintCoincidence::ID()) {
631 aRefAttrA = std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(
632 aConstrFeature->attribute(SketchPlugin_Constraint::ENTITY_A()));
633 aRefAttrB = std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(
634 aConstrFeature->attribute(SketchPlugin_Constraint::ENTITY_B()));
635 if ((aRefAttrA && aRefAttrA->attr() == aStartAttr) ||
636 (aRefAttrB && aRefAttrB->attr() == aStartAttr))
637 aCoincidence.insert(aConstrFeature);
639 else if (aConstrFeature->getKind() == SketchPlugin_ConstraintTangent::ID()) {
640 aRefAttrA = std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(
641 aConstrFeature->attribute(SketchPlugin_Constraint::ENTITY_A()));
642 aRefAttrB = std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(
643 aConstrFeature->attribute(SketchPlugin_Constraint::ENTITY_B()));
644 if ((aRefAttrA && aRefAttrA->object() == aThisArc) ||
645 (aRefAttrB && aRefAttrB->object() == aThisArc))
646 aTangency.insert(aConstrFeature);
649 // search applicable pair of constraints
650 bool isFound = false;
651 FeaturePtr aPrevCoincidence, aPrevTangency;
652 std::set<FeaturePtr>::const_iterator aCIt, aTIt;
653 for (aCIt = aCoincidence.begin(); aCIt != aCoincidence.end() && !isFound; ++aCIt) {
654 aRefAttrA = std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(
655 (*aCIt)->attribute(SketchPlugin_Constraint::ENTITY_A()));
656 aRefAttrB = std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(
657 (*aCIt)->attribute(SketchPlugin_Constraint::ENTITY_B()));
658 AttributePtr anOtherPoint =
659 aRefAttrA->attr() == aStartAttr ? aRefAttrB->attr() : aRefAttrA->attr();
660 for (aTIt = aTangency.begin(); aTIt != aTangency.end() && !isFound; ++aTIt) {
661 aRefAttrA = std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(
662 (*aTIt)->attribute(SketchPlugin_Constraint::ENTITY_A()));
663 aRefAttrB = std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(
664 (*aTIt)->attribute(SketchPlugin_Constraint::ENTITY_B()));
665 ObjectPtr anOtherObject = aRefAttrA->object() == aThisArc ?
666 aRefAttrB->object() : aRefAttrA->object();
667 FeaturePtr anOtherFeature = ModelAPI_Feature::feature(anOtherObject);
668 if (anOtherPoint->owner() == anOtherFeature) {
670 aPrevCoincidence = *aCIt;
671 aPrevTangency = *aTIt;
677 // update previous constraints
678 aRefAttrA = std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(
679 aPrevCoincidence->attribute(SketchPlugin_Constraint::ENTITY_A()));
680 aRefAttrB = std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(
681 aPrevCoincidence->attribute(SketchPlugin_Constraint::ENTITY_B()));
682 if (aRefAttrA->attr() == aStartAttr)
683 aRefAttrB->setAttr(aTangPtAttr->attr());
685 aRefAttrA->setAttr(aTangPtAttr->attr());
687 aRefAttrA = std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(
688 aPrevTangency->attribute(SketchPlugin_Constraint::ENTITY_A()));
689 aRefAttrB = std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(
690 aPrevTangency->attribute(SketchPlugin_Constraint::ENTITY_B()));
691 if (aRefAttrA->object() == aThisArc)
692 aRefAttrB->setObject(aTangFeature);
694 aRefAttrA->setObject(aTangFeature);
696 // Wait all constraints being removed, then send update events
697 static Events_ID aDeleteEvent = Events_Loop::eventByName(EVENT_OBJECT_DELETED);
698 bool isDeleteFlushed = Events_Loop::loop()->isFlushed(aDeleteEvent);
700 Events_Loop::loop()->setFlushed(aDeleteEvent, false);
701 // Remove all obtained constraints which use current arc, because
702 // there is no information which of them were used to build tangency arc.
703 DocumentPtr aDoc = sketch()->document();
704 std::set<FeaturePtr> aFeaturesToBeRemoved;
705 for (aCIt = aCoincidence.begin(); aCIt != aCoincidence.end(); ++aCIt)
706 aFeaturesToBeRemoved.insert(*aCIt);
707 for (aTIt = aTangency.begin(); aTIt != aTangency.end(); ++aTIt)
708 aFeaturesToBeRemoved.insert(*aTIt);
709 ModelAPI_Tools::removeFeaturesAndReferences(aFeaturesToBeRemoved);
710 // Send events to update the sub-features by the solver.
712 Events_Loop::loop()->setFlushed(aDeleteEvent, true);
714 Events_Loop::loop()->flush(aDeleteEvent);
716 // Wait all constraints being created, then send update events
717 static Events_ID aCreateEvent = Events_Loop::eventByName(EVENT_OBJECT_CREATED);
718 bool isCreateFlushed = Events_Loop::loop()->isFlushed(aCreateEvent);
720 Events_Loop::loop()->setFlushed(aCreateEvent, false);
722 // Create new constraints
723 FeaturePtr aConstraint = sketch()->addFeature(SketchPlugin_ConstraintCoincidence::ID());
724 aRefAttrA = std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(
725 aConstraint->attribute(SketchPlugin_Constraint::ENTITY_A()));
726 aRefAttrB = std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(
727 aConstraint->attribute(SketchPlugin_Constraint::ENTITY_B()));
728 aRefAttrA->setAttr(aStartAttr);
729 aRefAttrB->setAttr(aTangPtAttr->attr());
730 aConstraint->execute();
731 ModelAPI_EventCreator::get()->sendUpdated(aConstraint, aCreateEvent);
733 aConstraint = sketch()->addFeature(SketchPlugin_ConstraintTangent::ID());
734 aRefAttrA = std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(
735 aConstraint->attribute(SketchPlugin_Constraint::ENTITY_A()));
736 aRefAttrB = std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(
737 aConstraint->attribute(SketchPlugin_Constraint::ENTITY_B()));
738 aRefAttrA->setObject(aThisArc);
739 aRefAttrB->setObject(aTangFeature);
740 aConstraint->execute();
741 ModelAPI_EventCreator::get()->sendUpdated(aConstraint, aCreateEvent);
743 // Send events to update the sub-features by the solver.
745 Events_Loop::loop()->setFlushed(aCreateEvent, true);
747 Events_Loop::loop()->flush(aCreateEvent);