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How do I plot a scalar field along an arbitrary line in Nutils?
Can you explain how to create a mesh along the line?
Sure. To create a mesh along the line, you will need to define a curve that represents your line, and then use this curve to generate a mesh. In Nutils, you can do this by using the `nurbs` module to define a curve, and then calling the `line_mesh` function to generate a mesh. Would you like me to provide an example?