Using griddata on an unstructured grid
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Hello
This is probably a very silly question but I can't really wrap my head around griddata. I've used it previously but it was a lot more straight forward then!
So right now I have one set of coordinates (x,y) which represent and unstructured grid. I also have another set of coordinates with represent the centre of each of those triangles in the unstructured grid. I have a velocity value for each of the points within the triangle. What I need to do is to interpolate the data from the centre of the triangle to the different node points, which would be my first set of coordinates. I've been trying to use griddata but keep getting error messages.
I'm not sure if I've explained myself very well but I've attached my code to this question so hopefully that will be clearer.
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