Fri, 02/18/2022 - 11:54
Forums:
TopoDS_Shape shape = myAisShape->Shape();
myContext()->Remove(myAisShape, true);
gp_Trsf trsf = myAisShape->Transformation();
Standard_Real x = ui->xSpinBox->value();
Standard_Real y = ui->ySpinBox->value();
Standard_Real z = ui->zSpinBox->value();
trsf.SetTranslationPart(gp_Vec(x,y,z));
BRepBuilderAPI_Transform transform(shape, trsf, false);
transform.Build();
shape = transform.Shape();
AIS_Shape *aisShape = new AIS_Shape(shape);
aisShape->SetLocalTransformation(shape.Location().Transformation());
myContext()->Display(aisShape, true);I really cannot understand why this isn't work as excepted modified shapes relocated somewhere other than given coordinates and also losses rotation sometimes need help.
Fri, 02/18/2022 - 12:37
here you are applying transformation twice - as assigned to TopoDS_Shape and as additional local transformation of AIS_Shape. It makes sense applying transformation either to TopoDS_Shape (in this case AIS_Shape could have identity transformation) or to AIS_Shape (in this case TopoDS_Shape should have identity location).
This code is dangerous and might lead to memory leaks. It is better always using Handles (e.g. Handle(AIS_Shape)) instead of raw pointers for any objects inheriting Standard_Transient (which is majority of classes in OCCT).
Fri, 02/18/2022 - 12:57
Thank you for your fast reply,
Unfortunately result is still incorrect.