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hatching not working properly with matplotlib - Printable Version

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hatching not working properly with matplotlib - Staph - Jul-28-2019

I have 2 arrays arr1 contains correlation values of between -1 to 1
arr2 contains nans and 1's but same shape as arr1
arr1 = 180 * 360
arr2 = 180 * 360

I want to plot arr2 on arr1 as a hatch like this

plt.contourf(lon,lat,arr1)
plt.pcolor(lon,lat, arr2, hatch = '...', alpha=0)

the problem here is that some of the colors in the hatched are covered by the contour plot of arr1

How can I make the hatches apear on top without being blocked by the contours of arr1


RE: hatching not working properly with matplotlib - ThomasL - Jul-28-2019

maybe it has something to do with alpha=0 ?


RE: hatching not working properly with matplotlib - Staph - Jul-28-2019

I turned it off but same problem


RE: hatching not working properly with matplotlib - ThomasL - Jul-28-2019

did you have a look here and played with edgecolors= ?