Convert 3DPointCloud into a plot XY (2D)
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I need to transform a PointCloud to a plot of it from the XY plane, that is, from above. Thank you for answering
回答（1 个）
If the goal is to view the pointcloud from the top to see the XY plane, there's no need to replot the data.
- To view a 3D axes from above, looking down on the XY plane, use view(2).
- To remove the depth perspective, change the projection to orthogonal.
load("xyzPoints")
pc = pointCloud(xyzPoints);
tiledlayout(2,2)
nexttile([2,1])
pcshow(pc)
title('3D')
axis on
box on
nexttile
pcshow(pc)
view(2)
title('2D perspective')
axis on
box on
nexttile
pcshow(pc)
view(2)
title('2D orthographic')
axis on
set(gca, 'Projection','Orthographic')
box on
However, if you really want to replot the (X,Y) values,
figure()
scatter(xyzPoints(:,1), xyzPoints(:,2), 10, xyzPoints(:,3),'.')
axis equal
grid on
title('2D scatter')
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2023-1-10
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