On 03/01/2012 12:35 PM, Pierre Barthelemy wrote: > Hello, > > for a data analysis tool i am programming, i need to plot a cut through > a 2D graph. I then have a 2D array, and the indices > start=(start_x,start_y) and stop=(stop_x,stop_y) that are the position > of the starting point and stop point of the cut. The code i programmed > is placed on the bottom. > > This code returns only value existing in the original array: if the cut > should pass between the column index i and column index i+1, it returns > anyway the value at column index i. > Is it possible to use the numpy.interpolate library to make such that > when passing between i and i+1, the function returns an interpolation of > the graph between the points [row,column] and [row,column+1] ?
Pierre, if you have scipy next to numpy, have a look at scipy.ndimage.map_coordinates. In short, you define the coordinates you want your array to be interpolated at, and it will give you the interpolated values, using spline interpolation. Best, Vincent. _______________________________________________ NumPy-Discussion mailing list NumPy-Discussion@scipy.org http://mail.scipy.org/mailman/listinfo/numpy-discussion
