rotate 3D data

I have a geometry that consists of contours of xyz data points, I want to allign it in such a way that the inlet(left side) is perpendicular to the z axis so that the lenght of the geometry is along the z-axis. Can anybody help?

Thanks!

[Dyuman Joshi]

How is your question related to MATLAB?

Do you attain the figure by MATLAB code? If so, then provide the code and relevant data used.

[Lotte Piek]

for i=101:171;

plot3(dab.SegmentInfo(i).branch1(:,1), dab.SegmentInfo(i).branch1(:,2),dab.SegmentInfo(i).branch1(:,3)); hold on; --> blue in image

plot3(dab.SegmentInfo(i).branch2(:,1), dab.SegmentInfo(i).branch2(:,2),dab.SegmentInfo(i).branch2(:,3)); hold on; --> green in image

end;

for i = 173:435

plot3(dab.SegmentInfo(i).main(:,1), dab.SegmentInfo(i).main(:,2),dab.SegmentInfo(i).main(:,3)); --> black in image

end

Colours in the figure are after the line, so the data consists of three parts and these consist of countours (xyz values for the points in the contours)

Answer 1

[Star Strider]

Use the rotate function. It will likely require a bit of experimenting to get it the way you want it.

Example —

imshow(imread('ask.png'))
title('Question Image')

x = 0:0.01:2*pi;
y = sin(8*x);
z = cos(8*x);

figure
hp = plot3(x, y, z);
grid on
xlabel('x')
ylabel('y')
zlabel('z')
axis('square')
title('Original')

figure
hp = plot3(x, y, z);
grid on
xlabel('x')
ylabel('y')
zlabel('z')
axis('square')
rotate(hp,[0 1 0],90)
title('Rotated')

.

[Lotte Piek]

thanks, will give it a try!

[Star Strider]

As always, my pleasure!