Hi,

if you know the orientation of the lines and that they are intersecting at their ends, you can just trim both lines by the chamfer width and create the chamfer by connecting first line's end point with the second line's start point.

So step-by-step. We have some three points and a chamfer width (I just put some values because I don't know yours):

points = [AllplanGeo.Point3D(0, 0, 0),
          AllplanGeo.Point3D(0, 0, 400),
          AllplanGeo.Point3D(0,-500, 500)]

chamfer_width = 20.0

• first line starts in the first point and ends in the second point
  
• second line starts where the first line ends and goes to the third point
  

lines = [AllplanGeo.Line3D(points[0], points[1]),
         AllplanGeo.Line3D(points[1], points[2])]

Now trim the first line at the end, and the second line at the start by chamfer width:

lines[0].TrimEnd(chamfer_width)
lines[1].TrimStart(chamfer_width)

chamfer_line = AllplanGeo.Line3D(lines[0].EndPoint, lines[1].StartPoint)

self.model_ele_list.append(AllplanBasisElements.ModelElement3D(com_prop, lines[0]))
self.model_ele_list.append(AllplanBasisElements.ModelElement3D(com_prop, lines[1]))
self.model_ele_list.append(AllplanBasisElements.ModelElement3D(com_prop, chamfer_line))

Is it what you were looking for? I didn't use the ChamferCalculus, because it is designated for more generic case: where you don't know, whether the chamfered lines cross each other, have common end points or don't cross at all. This is also why using it is much more complicated. If you know, that the two lines you want to chamfer have a common end point and you know their orientation, you can simply trim them.

Best,
Bart

Hi,

Is the Line3D a variable? Because Line3D is also a name of a class in the NemAll_Python_Geometry module. Please stick to conventions:

• variable names: snake_case
  
• classes: CamelCase
  

Please provide more information.

Best,
Bart

Hi,

FilletCalculus3D.Calculate does not simply return the fillet. It returns a tuple with four elements in it: error code, adapted first line, adapted second line and the fillet. See documentation. You have to unpack the values:

err, first_line, second_line, fillet = AllplanGeo.FilletCalculus3D.Calculate(Linia1, Linia2, radius)

if err == AllplanGeometry.eFilletErrorCode.eNO_ERROR
    self.model_ele_list.append(AllplanBasisElements.ModelElement3D(com_prop, first_line))
    self.model_ele_list.append(AllplanBasisElements.ModelElement3D(com_prop, second_line))
    self.model_ele_list.append(AllplanBasisElements.ModelElement3D(com_prop, fillet))

Have a look at this example, lines 231-241

Best,
Bart