//--------------------------------------------------------------------------------------------------
bool _FindBendAxis(MakeContext context)
{
// Find the longest edge to revolve around
var foundEdges = EdgeAlgo.FindLongestEdge(context.TargetFace);
if (!foundEdges.axis.HasValue || !foundEdges.opAxis.HasValue)
{
Messages.Error("No linear edge found to bend around.");
return(false);
}
context.BendEdge = _Reverse ? foundEdges.opEdge : foundEdges.edge;
context.OppositeEdge = _Reverse ? foundEdges.edge : foundEdges.opEdge;
context.BendAxis = _Reverse ? foundEdges.opAxis.Value : foundEdges.axis.Value;
// Direction of the inner: Get face plane, get cross vector of edge axis and plane normal
if (!FaceAlgo.GetCenteredPlaneFromFace(context.TargetFace, out var facePlane))
{
Messages.Error("Face must be of planar type.");
return(false);
}
context.TopDirection = context.BendAxis.Direction.Crossed(facePlane.Axis.Direction);
// Move axis by radius to the center of the revolve
var radius = Math.Max(0.001, _Radius);
context.BendAxis.Translate(context.TopDirection.ToVec().Multiplied(radius));
return(true);
}
public void FindLongestEdge()
{
var box = Box.Create(10.0, 10.0, 1.0);
var face = box.GetBRep().Faces()[1];
var edges = face.Edges();
var result = EdgeAlgo.FindLongestEdge(face);
Assert.NotNull(result.edge);
Assert.NotNull(result.axis);
Assert.NotNull(result.opEdge);
Assert.NotNull(result.opAxis);
Assert.AreEqual(edges[1], result.edge);
Assert.AreEqual(edges[3], result.opEdge);
Assert.IsTrue(result.axis.Value.IsParallel(result.opAxis.Value, Double.Epsilon));
}