Colormap map to Y axis instead of Z

I'm using surf() and plot3() to plot a set of magnetic field values centered on their physical position and a reference object on the same plot and a colorbar to show the field strength at that point. The problem I'm having is that the colormap is tied to the Z axis values and I want to make them refer to the Y axis values.

% Plate plane position shiftsurf()

pxShift = -XPMagAvg(1)+(0.08-(1*0.01));

% Main plotting

f = figure;

figure(1);

surf(xzpos,(XPMAG{1}+pxShift), zxpos, 'FaceColor', 'interp');

hold on

plot3(CSC1(:,1),CSC1(:,2),CSC1(:,3),'k', CSC2(:,1),CSC2(:,2),...

CSC2(:,3),'k', CSC3(:,1),CSC3(:,2),CSC3(:,3),'k', ...

CSC4(:,1),CSC4(:,2),CSC4(:,3),'k');

xlabel('X [m]');

ylabel('Y [m]');

zlabel('Z [m]');

title(strcat('XZ Magnetic Field at Height. Avg = ', ...

num2str(XPMagAvg(1))));

% Colorbar and colorbar settings

cbRange = linspace(minXPMM, maxXPMM, 5);

cbR = cell(1,5);

for u = 1:5

cbR{u} = num2str(cbRange(u));

end

cbTickRange = linspace(minXPMM+pxShift, maxXPMM+pxShift, 5);

cbh=colorbar('XTickLabel',{cbR{1},cbR{2},cbR{3},cbR{4}, ...

cbR{5}},'XTick', cbTickRange); % Set colorbar range and ticks

caxis([minXPMM+pxShift maxXPMM+pxShift]); % Change colorbar range

ylabel(cbh, 'B [Gauss]', 'FontSize', 16, 'Rotation', 90);

colormap('parula');

% Window settings

ax = gca;

ax.XLim = [-0.15 0.15];

ax.YLim = [-0.15 0.15];

ax.ZLim = [-0.1 0.1];

f.Units = 'inches';

f.Position = [3 3 10 8];

hold off

hold off

I can change all I need for the normal case where my field is perpendicular to this. So I want something like this in the second pic but perpendicular.

Answer 1

[Voss]

You can use the fourth input to surf to set the color to something other than Z. In this case set the color to be the same as Y:

load('ColorbarDifferentAxis.mat')
delete(f) % (delete the figure stored in the mat-file so it doesn't show up here)

% Plate plane position shiftsurf() 
    pxShift = -XPMagAvg(1)+(0.08-(1*0.01)); 
    % Main plotting
    f = figure;
    figure(1);
    
%     surf(xzpos,(XPMAG{1}+pxShift), zxpos, 'FaceColor', 'interp');
    surf(xzpos,(XPMAG{1}+pxShift), zxpos, (XPMAG{1}+pxShift), 'FaceColor', 'interp');
    
    hold on
    plot3(CSC1(:,1),CSC1(:,2),CSC1(:,3),'k', CSC2(:,1),CSC2(:,2),...
        CSC2(:,3),'k', CSC3(:,1),CSC3(:,2),CSC3(:,3),'k', ...
        CSC4(:,1),CSC4(:,2),CSC4(:,3),'k');
    xlabel('X [m]');
    ylabel('Y [m]');
    zlabel('Z [m]');
    title(strcat('XZ Magnetic Field at Height. Avg = ', ...
        num2str(XPMagAvg(1))));
   
    % Colorbar and colorbar settings
    cbRange = linspace(minXPMM, maxXPMM, 5);
    cbR = cell(1,5);
    for u = 1:5
        cbR{u} = num2str(cbRange(u));
    end
    cbTickRange = linspace(minXPMM+pxShift, maxXPMM+pxShift, 5);
    cbh=colorbar('XTickLabel',{cbR{1},cbR{2},cbR{3},cbR{4}, ... 
        cbR{5}},'XTick', cbTickRange); % Set colorbar range and ticks
    caxis([minXPMM+pxShift maxXPMM+pxShift]); % Change colorbar range
    ylabel(cbh, 'B [Gauss]', 'FontSize', 16, 'Rotation', 90);
    colormap('parula');
    
    % Window settings
    ax = gca;
    ax.XLim = [-0.15 0.15];
    ax.YLim = [-0.15 0.15];
    ax.ZLim = [-0.1 0.1];
    f.Units = 'inches';
    f.Position = [3 3 10 8];
    hold off
    hold off

[Michael Stromecki]

Thanks!

[Voss]

You're welcome!