I am currently carrying out a research project involving submarine canyons. The canyons are mapped as polygons and I need to find the longitudinal and cross sectional profiles of the canyons. Each canyon also has a centre line, mapped as a polyline. I know you can draw individual profile lines, but I have over 200 canyons and this would be extremely time consuming!

Does anyone know how it can be done by a more efficient method?

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