Hi Rick,
I'm looking at the fixed resolution extraction example, and I'm wondering: what ordering (row or column) will the final will have?
The "cube" object in that example can also return the x, y, z fields. If you add this code in to the example: for xi in [0, -1]: for yi in [0, -1]: for zi in [0, -1]: print xi, yi, zi, print cube['x'][xi,yi,zi], print cube['y'][xi,yi,zi], print cube['z'][xi,yi,zi] the results give back: 0 0 0 0.00390625 0.00390625 0.00390625 0 0 -1 0.00390625 0.00390625 0.99609375 0 -1 0 0.00390625 0.99609375 0.00390625 0 -1 -1 0.00390625 0.99609375 0.99609375 -1 0 0 0.99609375 0.00390625 0.00390625 -1 0 -1 0.99609375 0.00390625 0.99609375 -1 -1 0 0.99609375 0.99609375 0.00390625 -1 -1 -1 0.99609375 0.99609375 0.99609375 So the set of array indices [0,0,0] is the lowest value in all three coordinates and the set of array indices [-1, -1, -1] is the maximum in all three coordinates. These correspond to the coordinate system Enzo uses. Does that answer your question? -Matt