Surface | The data the describes the coordinates of the surface is set in z . Data in z should be a {2D array}. Coordinates in x and y can either be 1D {arrays} or {2D arrays} (e.g. to graph parametric surfaces). If not provided in x and y , the x and y coordinates are assumed to be linear starting at 0 with a unit step. The color scale corresponds to the z values by default. For custom color scales, use surfacecolor which should be a {2D array}, where its bounds can be controlled using cmin and cmax .
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