Visualization after reshaping

Hi everybody,

I looked at the recent posts and decided to try reshaping myself. The first objective was to update a vertex of a shape I use the following code (I hope the formatting is right):

TopoDS_Shape shape ... //the shape to update
TopoDS_Vertex vertex ...//the vertex to update

gp_Pnt point = BRep_Tool::Pnt(vertex); array ^coordinates = gcnew array(3);

coordinates[0] = point.X();
coordinates[1] = point.Y();
coordinates[2] = point.Z();
BRep_Builder builder;
TopoDS_Vertex first, last, aVertex;
TopTools_IndexedMapOfShape edgesMap, verticesMap;
TopExp::MapShapes(shape, TopAbs_VERTEX, verticesMap);
TopExp::MapShapes(shape, TopAbs_EDGE, edgesMap);
Handle(ShapeBuild_ReShape) reshaper = new ShapeBuild_ReShape;
int vertexUpdates = 0;
for(int j=1; j { TopExp::Vertices( TopoDS::Edge(edgesMap(j)), first, last); if(first.IsEqual(vertex) || last.IsEqual(vertex))
{ if(first.IsEqual(vertex)) aVertex = first; else aVertex = last;

//value contains the changed coordinates of the vertex if( (value[0] != coordinates[0]) || (value[1] != coordinates[1]) || (value[2] != coordinates[2]))
{
builder.UpdateVertex(aVertex, gp_Pnt(value[0], value[1], value[2]), Precision::Confusion());
int key = verticesMap.FindIndex(aVertex); reshaper->Replace(verticesMap(key), aVertex); //reshaper->Replace(edgesMap(j), edgesMap(j)); vertexUpdates++; break;
}
}
}
if(vertexUpdates > 0)
{
shape = reshaper->Apply(shape);

ShapeFix_Shape fixer(shape); fixer.Perform(); shape = fixer.Shape();

aisShape = new AIS_Shape(shape);
... //Displaying
}

The are some problems with this code:
- the shape visualized in wireframe mode is the one before reshaping although the shaded mode displays the altered one correctly. This problem doesn't occur if I update (replace) the corresponding edges of the shape instead of vertices. However, in that case I have to create new TopoDS_Edge(s), which I would like to avoid.

- is this possible to make an automatic update of an AIS_Shape as soon as the underlying TopoDS_Shape changes?

- can reshaping be used to implement redo/undo functionalities (if I didn't want to use OCAF)?

Best regards
Pawel