Bluewhitered function in tiledlayout environment

Question

Richard Wood 2024-6-4

0
链接

此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/2125436-bluewhitered-function-in-tiledlayout-environment

回答： DGM 2024-6-4

Dear all

I am using this nice customized function, https://es.mathworks.com/matlabcentral/fileexchange/4058-bluewhitered. When I use it in a tiledlayout environment, the individual colorbar for each of the plots is not centered in zero for the white colour:

u1=figure('visible','off','units','pixels','position',[0 0 1920 1080]);
tiledlayout("horizontal");
ax1=nexttile;
uimagesc(space_x,space_y,x);
axis xy;
colormap(gca,bluewhitered(256));
box on;
clr1=colorbar;
set(clr1,'TickLabelInterpreter','latex');
clim([-1 1]);
xlim([0 500]);
xticks([0:100:500]);
ylim([0 500]);
yticks([0:100:500]);
pbaspect([1 1 1]);                           
xtickangle(0);
set(gca,'TickLabelInterpreter','latex','FontSize',18);
ax2=nexttile;
uimagesc(space_x,space_y,y);
colormap(gca,bluewhitered(256));
axis xy;
box on;
clr2=colorbar;
set(clr2,'TickLabelInterpreter','latex');
clim([-1 1]);
xlim([0 500]);
xticks([0:100:500]);
ylim([0 500]);
yticks([0:100:500]);
pbaspect([1 1 1]);                           
xtickangle(0);
set(gca,'TickLabelInterpreter','latex','FontSize',18);
ax3=nexttile;
uimagesc(space_x,space_y,z);
box on;
axis xy;
colormap(gca,bluewhitered(256));
clr3=colorbar;
set(clr3,'TickLabelInterpreter','latex');
clim([-1 1]);
xlim([0 500]);
xticks([0:100:500]);
ylim([0 500]);
yticks([0:100:500]);
pbaspect([1 1 1]);                           
xtickangle(0);
set(gca,'TickLabelInterpreter','latex','FontSize',18);            
set(gcf,'color','white');
set(gca,'Units','normalized');
set(u1,'Units','Inches');
posu1=get(u1,'Position');
set(u1,'PaperPositionMode','Auto','PaperUnits','Inches','PaperSize',[posu1(3),posu1(4)]);

I have tried to add "gca" to the colormap() environment, as suggested in the discussions of the function, but it does not seem to do the job.

Any ideas?

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Answer 1

DGM 2024-6-4

1
链接

此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/2125436-bluewhitered-function-in-tiledlayout-environment#answer_1467671

Unlike other map generators, bluewhitered() depends on the caxis of the current axes. You need to generate the map after you set caxis. If your subplots have different caxis symmetry about 0, then you must regenerate the map each time.