Inserting slice into a scatter 3D plot

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Keith Holmlund
Keith Holmlund 2018-7-5
编辑： Star Strider 2018-7-6
I have been able to generate a scatter3 plot similar to one under visualize a function of 3 variables https://www.mathworks.com/help/matlab/examples/visualizing-four-dimensional-data.html. I would like to insert a slice at a certain z value. To the use the referenced plot as an example, if I wanted to have a transparent red plane at the 30% of Rural Population, how would I generate that

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回答（1 个）

Star Strider
Star Strider 2018-7-5
编辑：Star Strider 2018-7-6
With respect to that example, add the lines between hold on and hold off in this code to get the plane you want:
scatter3(long,lat,rural,40,fatalities,'filled') % draw the scatter plot
ax = gca;
ax.XDir = 'reverse';
view(-31,14)
xlabel('W. Longitude')
ylabel('N. Latitude')
zlabel('% Rural Population')
hold on
xl = xlim;
yl = ylim;
patch([[1 1]*xl(1) [1 1]*xl(2)], [yl fliplr(yl)], [1 1 1 1]*30, 'r', 'FaceAlpha',0.2);
hold off
EDIT — Added plot image. (6 Jul 2018 at 00:52 UTC)

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在 Help Center 和 File Exchange 中查找有关 Lighting, Transparency, and Shading 的更多信息

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