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python Programming Glossary: map_coordinates

Fast interpolation of grid data

http://stackoverflow.com/questions/16983843/fast-interpolation-of-grid-data

data this is the way to go. The second is scipy.ndimage.map_coordinates . If you'd like to interpolate a few or many arbitrary points.. 26 Arbitrary interpolation of regularly gridded data using map_coordinates The first thing to undersand about map_coordinates is that it.. using map_coordinates The first thing to undersand about map_coordinates is that it operates in pixel coordinates e.g. just like you'd..

Scipy interpolation on a numpy array

http://stackoverflow.com/questions/3057015/scipy-interpolation-on-a-numpy-array

a 2D array at an arbitrary point. scipy.ndimage.map_coordinates is what you want.... As I understand your question you have.. you want to return values from the edges of the array. map_coordinates has several options to handle points outside the boundaries.. anything outside the boundaries to lie on the edge and use map_coordinates as usual. So to use map_coordinates you need to turn your actual..

How to sort my paws?

http://stackoverflow.com/questions/4502656/how-to-sort-my-paws

paw impact. def paw_image paw from scipy.ndimage import map_coordinates ny nx paw.shape # Trim off any blank edges around the paw..... the 20x20 grid coords np.vstack yi.flatten xi.flatten zi map_coordinates paw coords zi zi.reshape numy numx # Rescale the pressure values..

Python/Scipy 2D Interpolation (Non-uniform Data)

http://stackoverflow.com/questions/5146025/python-scipy-2d-interpolation-non-uniform-data

up question to my previous post Python Scipy Interpolation map_coordinates Let's say I want to interpolate over a 2d rectangular area...

Multivariate spline interpolation in python/scipy?

http://stackoverflow.com/questions/6238250/multivariate-spline-interpolation-in-python-scipy

observation data is regularly gridded If so scipy.ndimage.map_coordinates does exactly what you want. It's a bit hard to understand at.. coords np.array 1.2 3.5 6.7 2.5 7.9 3.5 3.5 3.5 # However map_coordinates expects the transpose of this coords coords.T # The mode kwarg.. used. The default is # cubic splines order 3 zi ndimage.map_coordinates data coords order 3 mode 'nearest' row column coords nrows ncols..

How do i fill “holes” in an image?

http://stackoverflow.com/questions/9478347/how-do-i-fill-holes-in-an-image

package RectBivariateSpline interp2d splrep splev map_coordinates but all of them seem to work in finding new pixels between existing..