1 #include <SketchSolver_ConstraintDistance.h>
2 #include <SketchSolver_Group.h>
3 #include <SketchSolver_Error.h>
5 #include <GeomAPI_XY.h>
8 void SketchSolver_ConstraintDistance::process()
11 if (!myBaseConstraint || !myStorage || myGroup == 0) {
12 /// TODO: Put error message here
15 if (!mySlvsConstraints.empty()) // some data is changed, update constraint
16 update(myBaseConstraint);
19 std::vector<Slvs_hEntity> anEntities;
20 getAttributes(aValue, anEntities);
21 if (!myErrorMsg.empty())
24 // Obtain entities to identify the type of distance
25 static const int aNbPoints = 2;
26 Slvs_hEntity aPoint[aNbPoints] = {SLVS_E_UNKNOWN, SLVS_E_UNKNOWN};
27 Slvs_hEntity aLine = SLVS_E_UNKNOWN;
28 myType = SLVS_C_PT_PT_DISTANCE;
30 std::vector<Slvs_hEntity>::iterator anEntIter = anEntities.begin();
31 for (; anEntIter != anEntities.end(); anEntIter++) {
32 if (*anEntIter == SLVS_E_UNKNOWN)
34 Slvs_Entity anEnt = myStorage->getEntity(*anEntIter);
35 if (anEnt.type == SLVS_E_POINT_IN_2D || anEnt.type == SLVS_E_POINT_IN_3D) {
36 if (aPtPos >= aNbPoints) {
37 myErrorMsg = SketchSolver_Error::INCORRECT_ATTRIBUTE();
40 aPoint[aPtPos++] = *anEntIter;
42 else if (anEnt.type == SLVS_E_LINE_SEGMENT) {
43 if (myType == SLVS_C_PT_LINE_DISTANCE) {
44 myErrorMsg = SketchSolver_Error::INCORRECT_ATTRIBUTE();
48 myType = SLVS_C_PT_LINE_DISTANCE;
52 Slvs_Constraint aConstraint = Slvs_MakeConstraint(SLVS_C_UNKNOWN, myGroup->getId(),
53 getType(), myGroup->getWorkplaneId(), aValue, aPoint[0], aPoint[1], aLine, SLVS_E_UNKNOWN);
54 aConstraint.h = myStorage->addConstraint(aConstraint);
55 mySlvsConstraints.push_back(aConstraint.h);
57 // Adjust point-line distance
58 if (getType() != SLVS_C_PT_LINE_DISTANCE)
61 // Get constraint parameters and check the sign of constraint value
62 std::vector<Slvs_hConstraint>::iterator aCIter = mySlvsConstraints.begin();
63 for (; aCIter != mySlvsConstraints.end(); aCIter++) {
64 Slvs_Constraint aConstraint = myStorage->getConstraint(*aCIter);
65 Slvs_Entity aLine = myStorage->getEntity(aConstraint.entityA);
66 // Obtain point and line coordinates
67 Slvs_hEntity aPointID[3] = {aConstraint.ptA, aLine.point[0], aLine.point[1]};
68 std::shared_ptr<GeomAPI_XY> aPoints[3];
69 for (int i = 0; i < 3; i++) {
70 Slvs_Entity aPoint = myStorage->getEntity(aPointID[i]);
71 Slvs_Param aParams[2] = {
72 myStorage->getParameter(aPoint.param[0]),
73 myStorage->getParameter(aPoint.param[1])};
74 aPoints[i] = std::shared_ptr<GeomAPI_XY>(new GeomAPI_XY(aParams[0].val, aParams[1].val));
76 std::shared_ptr<GeomAPI_XY> aLineVec = aPoints[2]->decreased(aPoints[1]);
77 std::shared_ptr<GeomAPI_XY> aPtLineVec = aPoints[0]->decreased(aPoints[1]);
78 if (aPtLineVec->cross(aLineVec) * aConstraint.valA < 0.0) {
79 aConstraint.valA *= -1.0;
80 myStorage->updateConstraint(aConstraint);