How to change resolution to every other point?

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Nicholas Deosaran
评论： Nicholas Deosaran 2021-9-3
Hello good day,
I would like to know how to change the resoulation of my grid to every other grid point.
I have been looking into how to change it but haven't been anywere.
% load the file named XBeach_masonboro_grid.mat
load XBeach_masonboro_grid.mat
figure()
% plot the topobathymetric surface (z) as a function of space (xgrid, ygrid)
pcolor(xgrid,ygrid,z)
title ('Masonboro Island Grid')
grid on
shading flat
I am able to get the plot to show, but do not know how to change the resoulation to every other grid point.
Thank you!

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the cyclist
the cyclist 2021-9-3
编辑：the cyclist 2021-9-3
res = 2;
pcolor(xgrid(1:res:end,1:res:end),ygrid(1:res:end,1:res:end),z(1:res:end,1:res:end))
will only plot every other point, in both the x and y dimension (and you could make res an even large value if you want).
Is that what you mean?

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