Display NaNs values and apply alphadata for values different to NaNs

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Haythem Zouabi
Haythem Zouabi 2020-11-11
评论： Haythem Zouabi 2020-11-12
Hello,
I want to display the NaN values by setting an alphadata equal to 0 and at the same time apply an alphadata equal to 0.3 for values different to NaNs?
This is the code i use but it doesn't work:
im=imagesc(I)
set(im,'AlphaData',0.3);
set(im,'AlphaData',~isnan(I))
Thanks,

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采纳的回答

Ameer Hamza
Ameer Hamza 2020-11-11
Try this
im = imagesc(I);
im.AlphaData = 0.3*ones(size(I));
im.AlphaData(isnan(I)) = 0;
  1 个评论
Haythem Zouabi
Haythem Zouabi 2020-11-12
Hello,
I need to resize and define the position of the colorbar.
This is my code:
ax3 = subplot(2,3,2);
ibg2 = imagesc(scene);
axis off
hold on
iim2 = imagesc(im,'XData',[16 466],'YData',[104 484]);
caxis([0 3])
iim2.AlphaData = 0.75*ones(size(im));
iim2.AlphaData(isnan(im)) = 0;
colorbar
colormap parula
caxis([0 3])
cb = colorbar;
set(cb,'position',[.10 .1 .1 .1])
This is the graph i get :
I need to place the color bar in the blue box (see figure)?
Thanks,

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