Projecting construction geometry to another sketch

[Lap Joint]

Hi,

I am just trying to get a grasp of CadQuery, so hopefully this is not a stupid question.

Trying to replicate a workflow that I do in parametric CAD (Onshape, FreeCAD etc.) all the time, I wanted to do the following:

1. Create a constraint-based sketch Sketch 1 as demonstrated in the documentation, including some construction geometry.
2. Create a second sketch Sketch 2 on a workplane that is offset from Sketch 1 by a certain distance.
3. Project some of the geometry from Sketch 1 into Sketch 2.
4. Create a loft between the two sketches.

Steps 1 and 2 are easy enough following the documentation, but how would I do Step 3? I have two ideas, but I couldn't figure out how to do either of those:

1. Just refer to the sketch elements by their tags and somehow include or project them into Sketch 2 directly.  – or, if that is not possible:
   
2. Refer to the sketch elements from Sketch 1 by their tags, extract the coordinates after solving the constraints, and construct matching elements in Sketch 2.
   

Is any one of these possible in CadQuery?

Thanks!

Lap Joint

[Roger Maitland]

I don't know of a way to extract part of a sketch and place it into another sketch. However, could a third sketch common to the other two solve this problem (as sketches can be combined)?  There is an example of lofting between two sketches at the bottom of this page: https://cadquery.readthedocs.io/en/latest/sketch.html