#include "SketchPlugin_Arc.h"
#include "SketchPlugin_Sketch.h"
+#include <SketchPlugin_ConstraintCoincidence.h>
+#include <SketchPlugin_ConstraintTangent.h>
+
+#include <Events_Loop.h>
#include <ModelAPI_Data.h>
#include <ModelAPI_ResultConstruction.h>
+#include <ModelAPI_AttributeDouble.h>
+#include <ModelAPI_AttributeRefAttr.h>
#include <ModelAPI_AttributeSelection.h>
+#include <ModelAPI_AttributeString.h>
+#include <ModelAPI_Events.h>
#include <ModelAPI_Validator.h>
#include <ModelAPI_Session.h>
#include <GeomAPI_Ax2.h>
#include <GeomAPI_Circ2d.h>
#include <GeomAPI_Circ.h>
+#include <GeomAPI_Dir2d.h>
+#include <GeomAPI_Dir.h>
+#include <GeomAPI_Lin2d.h>
+#include <GeomAPI_Lin.h>
#include <GeomAPI_Pnt2d.h>
+#include <GeomAPI_XY.h>
#include <GeomDataAPI_Point2D.h>
#include <GeomDataAPI_Dir.h>
#include <GeomAlgoAPI_PointBuilder.h>
const double paramTolerance = 1.e-4;
const double PI =3.141592653589793238463;
+namespace {
+ static const std::string& ARC_TYPE()
+ {
+ static const std::string TYPE("ArcType");
+ return TYPE;
+ }
+ static const std::string& ARC_TYPE_CENTER_START_END()
+ {
+ static const std::string TYPE("CenterStartEnd");
+ return TYPE;
+ }
+ static const std::string& ARC_TYPE_THREE_POINTS()
+ {
+ static const std::string TYPE("ThreePoints");
+ return TYPE;
+ }
+ static const std::string& ARC_TYPE_TANGENT()
+ {
+ static const std::string TYPE("Tangent");
+ return TYPE;
+ }
+
+ static const std::string& PASSED_POINT_ID()
+ {
+ static const std::string PASSED_PNT("ArcPassedPoint");
+ return PASSED_PNT;
+ }
+ static const std::string& TANGENT_POINT_ID()
+ {
+ static const std::string TANGENT_PNT("ArcTangentPoint");
+ return TANGENT_PNT;
+ }
+ static const std::string& RADIUS_ID()
+ {
+ static const std::string RADIUS("ArcRadius");
+ return RADIUS;
+ }
+ static const std::string& ANGLE_ID()
+ {
+ static const std::string ANGLE("ArcAngle");
+ return ANGLE;
+ }
+
+ static const std::string& POINT_ID(int theIndex)
+ {
+ switch (theIndex) {
+ case 1: return SketchPlugin_Arc::START_ID();
+ case 2: return SketchPlugin_Arc::END_ID();
+ case 3: return PASSED_POINT_ID();
+ }
+
+ static const std::string DUMMY;
+ return DUMMY;
+ }
+}
+
+
SketchPlugin_Arc::SketchPlugin_Arc()
: SketchPlugin_SketchEntity()
myXEndBefore = anEndAttr->x();
myYEndBefore = anEndAttr->y();
}
+
+ data()->addAttribute(ARC_TYPE(), ModelAPI_AttributeString::typeId());
+ std::dynamic_pointer_cast<ModelAPI_AttributeString>(
+ data()->attribute(ARC_TYPE()))->setValue(ARC_TYPE_CENTER_START_END());
+
+ data()->addAttribute(PASSED_POINT_ID(), GeomDataAPI_Point2D::typeId());
+ data()->addAttribute(TANGENT_POINT_ID(), ModelAPI_AttributeRefAttr::typeId());
+ data()->addAttribute(RADIUS_ID(), ModelAPI_AttributeDouble::typeId());
+ data()->addAttribute(ANGLE_ID(), ModelAPI_AttributeDouble::typeId());
}
void SketchPlugin_Arc::execute()
// result for the arc is set only when all obligatory attributes are initialized,
// otherwise AIS object is used to visualize the arc's preview
if (aSketch && isFeatureValid()) {
+ ResultPtr aLastResult = lastResult();
+ bool hasResult = aLastResult && aLastResult.get();
+
// compute a circle point in 3D view
std::shared_ptr<GeomDataAPI_Point2D> aCenterAttr = std::dynamic_pointer_cast<
GeomDataAPI_Point2D>(data()->attribute(CENTER_ID()));
aConstr2->setIsInHistory(false);
setResult(aConstr2, 1);
}
+
+ AttributeRefAttrPtr aTangentPoint = std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(
+ attribute(TANGENT_POINT_ID()));
+ if (!hasResult && aTangentPoint->attr())
+ tangencyArcConstraints();
}
}
std::shared_ptr<GeomDataAPI_Point2D> aStartAttr = std::dynamic_pointer_cast<
GeomDataAPI_Point2D>(data()->attribute(SketchPlugin_Arc::START_ID()));
+ std::shared_ptr<GeomDataAPI_Point2D> aEndAttr = std::dynamic_pointer_cast<
+ GeomDataAPI_Point2D>(data()->attribute(SketchPlugin_Arc::END_ID()));
+ AttributeStringPtr aTypeAttr = std::dynamic_pointer_cast<ModelAPI_AttributeString>(
+ data()->attribute(ARC_TYPE()));
+
if (aStartAttr->isInitialized()) {
// make a visible circle
std::shared_ptr<GeomDataAPI_Dir> aNDir = std::dynamic_pointer_cast<GeomDataAPI_Dir>(
if (aHasPlane) {
std::shared_ptr<GeomAPI_Dir> aNormal = aNDir->dir();
std::shared_ptr<GeomAPI_Pnt> aStartPoint(aSketch->to3D(aStartAttr->x(), aStartAttr->y()));
+ std::shared_ptr<GeomAPI_Pnt> aEndPoint = aStartPoint;
+ if (aTypeAttr && aTypeAttr->isInitialized() &&
+ aTypeAttr->value() == ARC_TYPE_THREE_POINTS() && aEndAttr->isInitialized())
+ aEndPoint = aSketch->to3D(aEndAttr->x(), aEndAttr->y());
std::shared_ptr<GeomAPI_Shape> aCircleShape = GeomAlgoAPI_EdgeBuilder::lineCircleArc(
- aCenter, aStartPoint, aStartPoint, aNormal);
+ aCenter, aStartPoint, aEndPoint, aNormal);
if (aCircleShape) {
std::list<std::shared_ptr<GeomAPI_Shape> > aShapes;
// make a visible point
if (!aData->isValid())
return;
+ aData->blockSendAttributeUpdated(true);
+
myStartUpdate = true;
myEndUpdate = true;
std::shared_ptr<GeomDataAPI_Point2D> aPoint2 = std::dynamic_pointer_cast<GeomDataAPI_Point2D>(
std::shared_ptr<GeomDataAPI_Point2D> aPoint1 = std::dynamic_pointer_cast<GeomDataAPI_Point2D>(
aData->attribute(SketchPlugin_Arc::CENTER_ID()));
aPoint1->move(theDeltaX, theDeltaY);
+
+ std::shared_ptr<GeomDataAPI_Point2D> aPassedPoint =
+ std::dynamic_pointer_cast<GeomDataAPI_Point2D>(aData->attribute(PASSED_POINT_ID()));
+ aPassedPoint->move(theDeltaX, theDeltaY);
+ aData->blockSendAttributeUpdated(false);
}
bool SketchPlugin_Arc::isFixed() {
bool SketchPlugin_Arc::isFeatureValid()
{
+ AttributeStringPtr anArcTypeAttr =
+ std::dynamic_pointer_cast<ModelAPI_AttributeString>(data()->attribute(ARC_TYPE()));
+ if (!anArcTypeAttr)
+ return false;
+ std::string anArcType = anArcTypeAttr->value();
+
std::shared_ptr<GeomDataAPI_Point2D> aCenterAttr = std::dynamic_pointer_cast<
GeomDataAPI_Point2D>(data()->attribute(SketchPlugin_Arc::CENTER_ID()));
std::shared_ptr<GeomDataAPI_Point2D> aStartAttr = std::dynamic_pointer_cast<
GeomDataAPI_Point2D>(data()->attribute(SketchPlugin_Arc::START_ID()));
std::shared_ptr<GeomDataAPI_Point2D> anEndAttr = std::dynamic_pointer_cast<
GeomDataAPI_Point2D>(data()->attribute(SketchPlugin_Arc::END_ID()));
+ std::shared_ptr<GeomDataAPI_Point2D> aPassedAttr = std::dynamic_pointer_cast<
+ GeomDataAPI_Point2D>(data()->attribute(PASSED_POINT_ID()));
- return aCenterAttr->isInitialized() && aStartAttr->isInitialized() && anEndAttr->isInitialized();
+ bool isValid = false;
+ if (anArcType == ARC_TYPE_THREE_POINTS())
+ isValid = aStartAttr->isInitialized() && anEndAttr->isInitialized() && aPassedAttr->isInitialized();
+ else
+ isValid = aCenterAttr->isInitialized() && aStartAttr->isInitialized() && anEndAttr->isInitialized();
+
+ return isValid;
}
+static inline void adjustPeriod(double& theParam)
+{
+ static const double PERIOD = 2.0 * PI;
+ while (theParam < 0.0) theParam += PERIOD;
+ while (theParam >= PERIOD) theParam -= PERIOD;
+}
+
+static inline void calculateArcAngleRadius(
+ const std::shared_ptr<GeomAPI_Circ2d>& theCircle,
+ const std::shared_ptr<GeomAPI_Pnt2d>& theStartPoint,
+ const std::shared_ptr<GeomAPI_Pnt2d>& theEndPoint,
+ const std::shared_ptr<GeomAPI_Pnt2d>& thePassedPoint,
+ AttributeDoublePtr theAngleAttr,
+ AttributeDoublePtr theRadiusAttr)
+{
+ double aStartParam, aEndParam, aPassedParam;
+ theCircle->parameter(theStartPoint, paramTolerance, aStartParam);
+ theCircle->parameter(theEndPoint, paramTolerance, aEndParam);
+ theCircle->parameter(thePassedPoint, paramTolerance, aPassedParam);
+ adjustPeriod(aStartParam);
+ adjustPeriod(aEndParam);
+ adjustPeriod(aPassedParam);
+
+ if (aPassedParam >= aStartParam && aPassedParam <= aEndParam)
+ theAngleAttr->setValue((aEndParam - aStartParam) * 180.0 / PI);
+ else
+ theAngleAttr->setValue((aEndParam - aStartParam - 2.0 * PI) * 180.0 / PI);
+ theRadiusAttr->setValue(theCircle->radius());
+}
+
+static inline void calculatePassedPoint(
+ const std::shared_ptr<GeomAPI_Pnt2d>& theCenter,
+ const std::shared_ptr<GeomAPI_Pnt2d>& theStartPoint,
+ const std::shared_ptr<GeomAPI_Pnt2d>& theEndPoint,
+ bool theArcReversed,
+ std::shared_ptr<GeomDataAPI_Point2D> thePassedPoint)
+{
+ std::shared_ptr<GeomAPI_Dir2d> aStartDir(new GeomAPI_Dir2d(
+ theStartPoint->xy()->decreased(theCenter->xy())));
+ std::shared_ptr<GeomAPI_Dir2d> aEndDir(new GeomAPI_Dir2d(
+ theEndPoint->xy()->decreased(theCenter->xy())));
+ std::shared_ptr<GeomAPI_Dir2d> aMidDir(new GeomAPI_Dir2d(
+ aStartDir->xy()->added(aEndDir->xy())));
+ if ((aStartDir->cross(aMidDir) > 0) ^ !theArcReversed)
+ aMidDir->reverse();
+
+ double aRadius = theCenter->distance(theStartPoint);
+ std::shared_ptr<GeomAPI_XY> aPassedPnt = theCenter->xy()->added( aMidDir->xy()->multiplied(aRadius) );
+ thePassedPoint->setValue(aPassedPnt->x(), aPassedPnt->y());
+}
+
+void SketchPlugin_Arc::updateDependentAttributes()
+{
+ data()->blockSendAttributeUpdated(true);
+
+ std::shared_ptr<GeomDataAPI_Point2D> aCenterAttr = std::dynamic_pointer_cast<
+ GeomDataAPI_Point2D>(data()->attribute(CENTER_ID()));
+ std::shared_ptr<GeomDataAPI_Point2D> aStartAttr = std::dynamic_pointer_cast<
+ GeomDataAPI_Point2D>(data()->attribute(START_ID()));
+ std::shared_ptr<GeomDataAPI_Point2D> anEndAttr = std::dynamic_pointer_cast<
+ GeomDataAPI_Point2D>(data()->attribute(END_ID()));
+ std::shared_ptr<GeomDataAPI_Point2D> aPassedPoint =
+ std::dynamic_pointer_cast<GeomDataAPI_Point2D>(attribute(PASSED_POINT_ID()));
+ AttributeDoublePtr aRadiusAttr = std::dynamic_pointer_cast<ModelAPI_AttributeDouble>(
+ data()->attribute(RADIUS_ID()));
+ AttributeDoublePtr anAngleAttr = std::dynamic_pointer_cast<ModelAPI_AttributeDouble>(
+ data()->attribute(ANGLE_ID()));
+
+ calculatePassedPoint(aCenterAttr->pnt(), aStartAttr->pnt(), anEndAttr->pnt(),
+ isReversed(), aPassedPoint);
+ std::shared_ptr<GeomAPI_Circ2d> aCircle(
+ new GeomAPI_Circ2d(aStartAttr->pnt(), anEndAttr->pnt(), aPassedPoint->pnt()));
+ calculateArcAngleRadius(aCircle, aStartAttr->pnt(), anEndAttr->pnt(), aPassedPoint->pnt(),
+ anAngleAttr, aRadiusAttr);
+ data()->blockSendAttributeUpdated(false);
+}
+
+
void SketchPlugin_Arc::attributeChanged(const std::string& theID)
{
std::shared_ptr<GeomDataAPI_Point2D> aCenterAttr = std::dynamic_pointer_cast<
}
return;
}
- if (!isFeatureValid())
+
+ AttributeDoublePtr aRadiusAttr = std::dynamic_pointer_cast<ModelAPI_AttributeDouble>(
+ data()->attribute(RADIUS_ID()));
+ AttributeDoublePtr anAngleAttr = std::dynamic_pointer_cast<ModelAPI_AttributeDouble>(
+ data()->attribute(ANGLE_ID()));
+
+ if (theID == RADIUS_ID()) {
+ if (!aStartAttr->isInitialized() || !anEndAttr->isInitialized())
+ return;
+ // move center and passed point
+ std::shared_ptr<GeomAPI_Pnt2d> aStartPnt = aStartAttr->pnt();
+ std::shared_ptr<GeomAPI_Pnt2d> aEndPnt = anEndAttr->pnt();
+ double aDist = aStartPnt->distance(aEndPnt);
+ if (fabs(aDist) < tolerance)
+ return;
+ std::shared_ptr<GeomAPI_XY> aDir = aEndPnt->xy()->decreased(aStartPnt->xy());
+ std::shared_ptr<GeomAPI_Dir2d> aMidPerpDir(new GeomAPI_Dir2d(-aDir->y(), aDir->x()));
+ std::shared_ptr<GeomAPI_XY> aMidPnt = aStartPnt->xy()->added(aEndPnt->xy())->multiplied(0.5);
+
+ double anAngle = anAngleAttr->value() * PI / 180.0;
+ adjustPeriod(anAngle);
+ if (anAngle > PI)
+ aMidPerpDir->reverse();
+
+ double aRadius = aRadiusAttr->value();
+ aDist = sqrt(aRadius * aRadius - aDist * aDist / 4.0);
+
+ std::shared_ptr<GeomAPI_XY> aCenter = aMidPnt->added(aMidPerpDir->xy()->multiplied(aDist));
+
+ data()->blockSendAttributeUpdated(true);
+ aCenterAttr->setValue(aCenter->x(), aCenter->y());
+ updateDependentAttributes();
+ data()->blockSendAttributeUpdated(false);
return;
+ }
+ if (theID == ANGLE_ID()) {
+ if (!aStartAttr->isInitialized() || !aCenterAttr->isInitialized())
+ return;
+ data()->blockSendAttributeUpdated(true);
+ // move end point and passed point
+ std::shared_ptr<GeomAPI_XY> aCenter = aCenterAttr->pnt()->xy();
+ double anAngle = anAngleAttr->value() * PI / 180.0;
+ double sinA = sin(anAngle);
+ double cosA = cos(anAngle);
+ std::shared_ptr<GeomAPI_XY> aStartDir = aStartAttr->pnt()->xy()->decreased(aCenter);
+ std::shared_ptr<GeomAPI_XY> aDir(new GeomAPI_XY(
+ aStartDir->x() * cosA - aStartDir->y() * sinA,
+ aStartDir->x() * sinA + aStartDir->y() * cosA));
+ anEndAttr->setValue(aCenter->x() + aDir->x(), aCenter->y() + aDir->y());
- // update the points in accordance to the changed point changes
- if (theID == CENTER_ID() && !myEndUpdate) {
- myEndUpdate = true;
+ anAngle /= 2.0;
+ sinA = sin(anAngle);
+ cosA = cos(anAngle);
+ aDir = std::shared_ptr<GeomAPI_XY>(new GeomAPI_XY(
+ aStartDir->x() * cosA - aStartDir->y() * sinA,
+ aStartDir->x() * sinA + aStartDir->y() * cosA));
+ std::shared_ptr<GeomDataAPI_Point2D> aPassedPoint =
+ std::dynamic_pointer_cast<GeomDataAPI_Point2D>(attribute(PASSED_POINT_ID()));
+ aPassedPoint->setValue(aCenter->x() + aDir->x(), aCenter->y() + aDir->y());
+
+ std::shared_ptr<GeomAPI_Circ2d> aCircle(
+ new GeomAPI_Circ2d(aStartAttr->pnt(), anEndAttr->pnt(), aPassedPoint->pnt()));
+ calculateArcAngleRadius(aCircle, aStartAttr->pnt(), anEndAttr->pnt(), aPassedPoint->pnt(),
+ anAngleAttr, aRadiusAttr);
+ data()->blockSendAttributeUpdated(false);
+ return;
+ }
+
+ if (theID == CENTER_ID()) {
+ if (!isFeatureValid())
+ return;
+ data()->blockSendAttributeUpdated(true);
// compute and change the arc end point
std::shared_ptr<GeomAPI_Circ2d> aCircleForArc(
new GeomAPI_Circ2d(aCenterAttr->pnt(), aStartAttr->pnt()));
std::shared_ptr<GeomAPI_Pnt2d> aProjection = aCircleForArc->project(anEndAttr->pnt());
if (aProjection && anEndAttr->pnt()->distance(aProjection) > tolerance)
anEndAttr->setValue(aProjection);
- myEndUpdate = false;
+ updateDependentAttributes();
+ data()->blockSendAttributeUpdated(false);
+ return;
+ }
+
+ AttributeStringPtr aTypeAttr =
+ std::dynamic_pointer_cast<ModelAPI_AttributeString>(attribute(ARC_TYPE()));
+ if (!aTypeAttr)
+ return;
+ std::string anArcType = aTypeAttr->value();
+
+ // update the points in accordance to the changed point changes
+ if (anArcType == ARC_TYPE_CENTER_START_END()) {
+ if (!isFeatureValid())
+ return;
+ updateDependentAttributes();
+ }
+ else if (anArcType == ARC_TYPE_THREE_POINTS() &&
+ (theID == START_ID() || theID == END_ID() || theID == PASSED_POINT_ID())) {
+ data()->blockSendAttributeUpdated(true);
+
+ std::shared_ptr<GeomAPI_Pnt2d> aPoints[3];
+ int aNbInitialized = 0;
+ for (int i = 1; i <= 3; ++i) {
+ std::shared_ptr<GeomDataAPI_Point2D> aCurPnt =
+ std::dynamic_pointer_cast<GeomDataAPI_Point2D>(attribute(POINT_ID(i)));
+ if (aCurPnt->isInitialized())
+ aPoints[aNbInitialized++] = aCurPnt->pnt();
+ }
+
+ if (aNbInitialized == 1)
+ aCenterAttr->setValue(aPoints[0]->x(), aPoints[0]->y());
+ else if (aNbInitialized == 2) {
+ // calculate center point, which gives a quarter of circle for the given start and end points
+ std::shared_ptr<GeomAPI_Pnt2d> aStartPnt = aPoints[0];
+ std::shared_ptr<GeomAPI_Pnt2d> aEndPnt = aPoints[1];
+ std::shared_ptr<GeomAPI_XY> aDir = aEndPnt->xy()->decreased(aStartPnt->xy())->multiplied(0.5);
+ double x = aDir->x();
+ double y = aDir->y();
+ aDir->setX(x - y);
+ aDir->setY(y + x);
+ std::shared_ptr<GeomAPI_XY> aCenter = aStartPnt->xy()->added(aDir);
+ double aRadius = sqrt(aDir->dot(aDir));
+
+ aCenterAttr->setValue(aCenter->x(), aCenter->y());
+ aRadiusAttr->setValue(aRadius);
+ anAngleAttr->setValue(90.0);
+ }
+ else {
+ std::shared_ptr<GeomAPI_Circ2d> aCircle(
+ new GeomAPI_Circ2d(aPoints[0], aPoints[1], aPoints[2]));
+
+ std::shared_ptr<GeomAPI_Pnt2d> aCenter = aCircle->center();
+ if (aCenter) {
+ aCenterAttr->setValue(aCenter);
+ if (theID == START_ID() || theID == END_ID())
+ updateDependentAttributes();
+ else
+ calculateArcAngleRadius(aCircle, aPoints[0], aPoints[1], aPoints[2],
+ anAngleAttr, aRadiusAttr);
+ }
+ }
+
+ data()->blockSendAttributeUpdated(false);
+ }
+ else if (anArcType == ARC_TYPE_TANGENT() && (theID == TANGENT_POINT_ID() || theID == END_ID())) {
+ SketchPlugin_Sketch* aSketch = sketch();
+ AttributeRefAttrPtr aTangPtAttr = std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(
+ data()->attribute(TANGENT_POINT_ID()));
+
+ if (aTangPtAttr->isInitialized() && anEndAttr->isInitialized()) {
+ data()->blockSendAttributeUpdated(true);
+ // compute orthogonal direction
+ std::shared_ptr<GeomAPI_Dir2d> anOrthoDir;
+ std::shared_ptr<GeomDataAPI_Point2D> aTangentPoint =
+ std::dynamic_pointer_cast<GeomDataAPI_Point2D>(aTangPtAttr->attr());
+ std::shared_ptr<GeomAPI_Pnt2d> aTangPnt2d = aTangentPoint->pnt();
+ FeaturePtr aTangFeature = ModelAPI_Feature::feature(aTangentPoint->owner());
+ std::shared_ptr<GeomAPI_Edge> aTangEdge = std::dynamic_pointer_cast<GeomAPI_Edge>(
+ aTangFeature->lastResult()->shape());
+ if (aTangEdge->isLine()) {
+ std::shared_ptr<GeomAPI_Dir> aDir = aTangEdge->line()->direction();
+ std::shared_ptr<GeomAPI_Pnt> aPnt(new GeomAPI_Pnt(aDir->x(), aDir->y(), aDir->z()));
+ std::shared_ptr<GeomAPI_Pnt2d> aPnt2d = aSketch->to2D(aPnt);
+ anOrthoDir = std::shared_ptr<GeomAPI_Dir2d>(new GeomAPI_Dir2d(-aPnt2d->y(), aPnt2d->x()));
+ }
+ else if (aTangEdge->isArc()) {
+ std::shared_ptr<GeomAPI_Pnt> aCenter = aTangEdge->circle()->center();
+ std::shared_ptr<GeomAPI_Pnt2d> aCenter2d = aSketch->to2D(aCenter);
+ anOrthoDir = std::shared_ptr<GeomAPI_Dir2d>(
+ new GeomAPI_Dir2d(aTangPnt2d->xy()->decreased(aCenter2d->xy())));
+ }
+
+ // compute parameters of the middle perpendicular
+ std::shared_ptr<GeomAPI_XY> aEndPntCoord = anEndAttr->pnt()->xy();
+ std::shared_ptr<GeomAPI_XY> aTempDir = aEndPntCoord->decreased(aTangPnt2d->xy());
+ std::shared_ptr<GeomAPI_Dir2d> aMidDir(new GeomAPI_Dir2d(-aTempDir->y(), aTempDir->x()));
+ std::shared_ptr<GeomAPI_Pnt2d> aMidPnt(
+ new GeomAPI_Pnt2d(aEndPntCoord->added(aTangPnt2d->xy())->multiplied(0.5)));
+
+ // compute center of arc by calculating intersection of orthogonal line and middle perpendicular
+ std::shared_ptr<GeomAPI_Lin2d> anOrthoLine(new GeomAPI_Lin2d(aTangPnt2d, anOrthoDir));
+ std::shared_ptr<GeomAPI_Lin2d> aMiddleLine(new GeomAPI_Lin2d(aMidPnt, aMidDir));
+ std::shared_ptr<GeomAPI_Pnt2d> aCenter = anOrthoLine->intersect(aMiddleLine);
+ if (aCenter) {
+ aCenterAttr->setValue(aCenter);
+ aStartAttr->setValue(aTangPnt2d);
+ updateDependentAttributes();
+ }
+
+ data()->blockSendAttributeUpdated(false);
+
+ if (theID == TANGENT_POINT_ID())
+ tangencyArcConstraints();
+ }
}
}
{
return std::dynamic_pointer_cast<ModelAPI_AttributeBoolean>(attribute(INVERSED_ID()))->value();
}
+
+void SketchPlugin_Arc::tangencyArcConstraints()
+{
+ if (!lastResult())
+ return;
+
+ std::shared_ptr<GeomDataAPI_Point2D> aStartAttr =
+ std::dynamic_pointer_cast<GeomDataAPI_Point2D>(attribute(START_ID()));
+ AttributeRefAttrPtr aTangPtAttr = std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(
+ attribute(TANGENT_POINT_ID()));
+ if (!aTangPtAttr->attr())
+ return;
+
+ FeaturePtr aFeature = ModelAPI_Feature::feature(aStartAttr->owner());
+ ObjectPtr aThisArc = aFeature->lastResult();
+ aFeature = ModelAPI_Feature::feature(aTangPtAttr->attr()->owner());
+ ObjectPtr aTangFeature = aFeature->lastResult();
+
+ // trying to find constraints to fix the tangency of the arc
+ std::set<FeaturePtr> aCoincidence;
+ std::set<FeaturePtr> aTangency;
+
+ AttributeRefAttrPtr aRefAttrA, aRefAttrB;
+ std::set<AttributePtr> aRefs = data()->refsToMe();
+ const std::set<AttributePtr>& aRefsToResult = lastResult()->data()->refsToMe();
+ aRefs.insert(aRefsToResult.begin(), aRefsToResult.end());
+ std::set<AttributePtr>::const_iterator aRefIt = aRefs.begin();
+ for (; aRefIt != aRefs.end(); ++aRefIt) {
+ FeaturePtr aConstrFeature = ModelAPI_Feature::feature((*aRefIt)->owner());
+ if (aConstrFeature->getKind() == SketchPlugin_ConstraintCoincidence::ID()) {
+ aRefAttrA = std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(
+ aConstrFeature->attribute(SketchPlugin_Constraint::ENTITY_A()));
+ aRefAttrB = std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(
+ aConstrFeature->attribute(SketchPlugin_Constraint::ENTITY_B()));
+ if ((aRefAttrA && aRefAttrA->attr() == aStartAttr) ||
+ (aRefAttrB && aRefAttrB->attr() == aStartAttr))
+ aCoincidence.insert(aConstrFeature);
+ }
+ else if (aConstrFeature->getKind() == SketchPlugin_ConstraintTangent::ID()) {
+ aRefAttrA = std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(
+ aConstrFeature->attribute(SketchPlugin_Constraint::ENTITY_A()));
+ aRefAttrB = std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(
+ aConstrFeature->attribute(SketchPlugin_Constraint::ENTITY_B()));
+ if ((aRefAttrA && aRefAttrA->object() == aThisArc) ||
+ (aRefAttrB && aRefAttrB->object() == aThisArc))
+ aTangency.insert(aConstrFeature);
+ }
+ }
+ // search applicable pair of constraints
+ bool isFound = false;
+ FeaturePtr aPrevCoincidence, aPrevTangency;
+ std::set<FeaturePtr>::const_iterator aCIt, aTIt;
+ for (aCIt = aCoincidence.begin(); aCIt != aCoincidence.end() && !isFound; ++aCIt) {
+ aRefAttrA = std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(
+ (*aCIt)->attribute(SketchPlugin_Constraint::ENTITY_A()));
+ aRefAttrB = std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(
+ (*aCIt)->attribute(SketchPlugin_Constraint::ENTITY_B()));
+ AttributePtr anOtherPoint =
+ aRefAttrA->attr() == aStartAttr ? aRefAttrB->attr() : aRefAttrA->attr();
+ for (aTIt = aTangency.begin(); aTIt != aTangency.end() && !isFound; ++aTIt) {
+ aRefAttrA = std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(
+ (*aTIt)->attribute(SketchPlugin_Constraint::ENTITY_A()));
+ aRefAttrB = std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(
+ (*aTIt)->attribute(SketchPlugin_Constraint::ENTITY_B()));
+ ObjectPtr anOtherObject = aRefAttrA->object() == aThisArc ?
+ aRefAttrB->object() : aRefAttrA->object();
+ if (anOtherPoint->owner() == anOtherObject) {
+ isFound = true;
+ aPrevCoincidence = *aCIt;
+ aPrevTangency = *aTIt;
+ }
+ }
+ }
+
+ if (isFound) {
+ // update previous constraints
+ aRefAttrA = std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(
+ aPrevCoincidence->attribute(SketchPlugin_Constraint::ENTITY_A()));
+ aRefAttrB = std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(
+ aPrevCoincidence->attribute(SketchPlugin_Constraint::ENTITY_B()));
+ if (aRefAttrA->attr() == aStartAttr)
+ aRefAttrB->setAttr(aTangPtAttr->attr());
+ else
+ aRefAttrA->setAttr(aTangPtAttr->attr());
+
+ aRefAttrA = std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(
+ aPrevTangency->attribute(SketchPlugin_Constraint::ENTITY_A()));
+ aRefAttrB = std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(
+ aPrevTangency->attribute(SketchPlugin_Constraint::ENTITY_B()));
+ if (aRefAttrA->object() == aThisArc)
+ aRefAttrB->setObject(aTangFeature);
+ else
+ aRefAttrA->setObject(aTangFeature);
+ } else {
+ // Wait all constraints being removed, then send update events
+ static Events_ID aDeleteEvent = Events_Loop::eventByName(EVENT_OBJECT_DELETED);
+ bool isDeleteFlushed = Events_Loop::loop()->isFlushed(aDeleteEvent);
+ if (isDeleteFlushed)
+ Events_Loop::loop()->setFlushed(aDeleteEvent, false);
+ // Remove all obtained constraints which use current arc, because
+ // there is no information which of them were used to build tangency arc.
+ DocumentPtr aDoc = sketch()->document();
+ for (aCIt = aCoincidence.begin(); aCIt != aCoincidence.end(); ++aCIt)
+ aDoc->removeFeature(*aCIt);
+ for (aTIt = aTangency.begin(); aTIt != aTangency.end(); ++aTIt)
+ aDoc->removeFeature(*aTIt);
+ // Send events to update the sub-features by the solver.
+ if (isDeleteFlushed)
+ Events_Loop::loop()->setFlushed(aDeleteEvent, true);
+ else
+ Events_Loop::loop()->flush(aDeleteEvent);
+
+ // Wait all constraints being created, then send update events
+ static Events_ID anUpdateEvent = Events_Loop::eventByName(EVENT_OBJECT_UPDATED);
+ bool isUpdateFlushed = Events_Loop::loop()->isFlushed(anUpdateEvent);
+ if (isUpdateFlushed)
+ Events_Loop::loop()->setFlushed(anUpdateEvent, false);
+
+ // Create new constraints
+ FeaturePtr aConstraint = sketch()->addFeature(SketchPlugin_ConstraintCoincidence::ID());
+ aRefAttrA = std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(
+ aConstraint->attribute(SketchPlugin_Constraint::ENTITY_A()));
+ aRefAttrB = std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(
+ aConstraint->attribute(SketchPlugin_Constraint::ENTITY_B()));
+ aRefAttrA->setAttr(aStartAttr);
+ aRefAttrB->setAttr(aTangPtAttr->attr());
+ aConstraint->execute();
+ ModelAPI_EventCreator::get()->sendUpdated(aConstraint, anUpdateEvent);
+
+ aConstraint = sketch()->addFeature(SketchPlugin_ConstraintTangent::ID());
+ aRefAttrA = std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(
+ aConstraint->attribute(SketchPlugin_Constraint::ENTITY_A()));
+ aRefAttrB = std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(
+ aConstraint->attribute(SketchPlugin_Constraint::ENTITY_B()));
+ aRefAttrA->setObject(aThisArc);
+ aRefAttrB->setObject(aTangFeature);
+ aConstraint->execute();
+ ModelAPI_EventCreator::get()->sendUpdated(aConstraint, anUpdateEvent);
+
+ // Send events to update the sub-features by the solver.
+ if(isUpdateFlushed)
+ Events_Loop::loop()->setFlushed(anUpdateEvent, true);
+ }
+}
