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Apply a specific RGB color on plot3

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Alberto Acri
Alberto Acri 2023-5-14
回答： Walter Roberson 2023-5-14
Hi. I have this code.
selection = importdata("selection.mat");
figure
plot3(selection(:,1),selection(:,2),selection(:,3),'b.','Markersize',5)
grid on
hold on
axis equal
xlabel('x')
ylabel('y')
zlabel('z')
I would like to apply a certain color (in this example, blue) to the nodes using an RGB value, for example like this:
plot3(selection(:,1),selection(:,2),selection(:,3),'Color',[0,0,1],'Markersize',5)

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回答（1 个）

Walter Roberson
Walter Roberson 2023-5-14
plot3(selection(:,1),selection(:,2),selection(:,3),'.','MarkerFaceColor',[0,0,1],'Markersize',5)
There is also MarkerEdgeColor. For the '.' marker, whether you use Face or Edge seems to affect the shade of blue used, and I am not sure why that is. For some styles of markers it is important which one you use; 'Face' color corresponds to asking for 'fill' on the markers, but some markers are only defined in terms of edge.

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