Convert 3DPointCloud into a plot XY (2D)

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Ramón Fernández de Caleya
Modificato: Adam Danz il 10 Gen 2023
I need to transform a PointCloud to a plot of it from the XY plane, that is, from above. Thank you for answering

Risposte (1)

Adam Danz
Adam Danz il 10 Gen 2023
Modificato: Adam Danz il 10 Gen 2023
If the goal is to view the pointcloud from the top to see the XY plane, there's no need to replot the data.
  1. To view a 3D axes from above, looking down on the XY plane, use view(2).
  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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