I've been trying to create a topographical wire mesh as shown below to convert to curves later:
Here I have a Bisect Tool Cut in Blender, but as you can see, the Tools panel really doesn't have an option to Create Multiple Cuts like I would want:
But heres an example from Cinema4D below, but I know it's possible in Blender too.
I would then like to select those edges and convert them into splines.
Apologies for the confusion.