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Select zone of the plot

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Miguel Albuquerque
Miguel Albuquerque el 26 de Jul. de 2022
Comentada: Star Strider el 27 de Jul. de 2022
Hey guys, thanks in advance,
Is there a way of representing azimuth3, only the red zones, which means, selecting only the most red zones of the plot?

Respuesta aceptada

Star Strider
Star Strider el 26 de Jul. de 2022
Editada: Star Strider el 26 de Jul. de 2022
This can certainly be done, however it is definitely not trivial!
Try this —
LD = load('Miguel Albuquerque azimuth3.mat');
azimuth3 = LD.azimuth3;
figure
[M,C] = contourf(azimuth3,25, 'EdgeColor','none');
Levels = C.LevelList
Levels = 1×26
1.0e+06 * 0.0001 0.0657 0.1314 0.1970 0.2626 0.3282 0.3939 0.4595 0.5251 0.5908 0.6564 0.7220 0.7876 0.8533 0.9189 0.9845 1.0501 1.1158 1.1814 1.2470 1.3127 1.3783 1.4439 1.5095 1.5752 1.6408
for k = 1:numel(Levels)
idx = find(M(1,:) == Levels(k));
ValidV = rem(M(2,idx),1) == 0;
StartIdx{k,:} = idx(ValidV);
VLen{k,:} = M(2,StartIdx{k});
end
colormap(turbo)
title('Original Filled Contour Plot')
v = axis(gca); % Get Original Axis Limits
[HiLvls,idx] = maxk(Levels,9); % Choose 9 Highest Contours
idx = flip(idx);
cm = turbo(numel(Levels)); % Define 'colormap' For This Plot
figure
hold on
for k = 1:numel(idx)
k1 = idx(k);
for k2 = 1:numel(k1)
idxv = StartIdx{k1}(k2)+1 : StartIdx{k1}(k2)+VLen{k1}(k2); % Index For Contour 'k1'
xv = M(1,idxv);
yv = M(2,idxv);
patch(xv, yv, cm(k1,:), 'EdgeColor','none') % Fill & Colour The Chosen Contours
end
end
hold off
axis(v)
title('Highest Level Contours')
Make appropriate changes to work as you want it to with your data.
EDIT — (26 Jul 2022 at 21:04)
Increased the number of contours to be plotted in the second plot.
.
  2 comentarios
Miguel Albuquerque
Miguel Albuquerque el 27 de Jul. de 2022
Thanks a lot :D
Star Strider
Star Strider el 27 de Jul. de 2022
As always, my pleasure!

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