Projected curve lengths (XY,XZ,YZ) of 3D arcs
1 Ansicht (letzte 30 Tage)
Ältere Kommentare anzeigen
Hello All,
I have a set of 3D curves as shown in attached image which was was extracted from X-ray Micro-CT system. I know the 3D curve length of each arcs by voxels. Also, using regionprops3 command, I found the coordinates of end points of each curve.
I would like to know the projected curve length of each curve in all three different planes (x-y,x-z,y-z).
Appreciate your comments.
![](https://www.mathworks.com/matlabcentral/answers/uploaded_files/1024395/image.jpeg)
6 Kommentare
Akzeptierte Antwort
Torsten
am 30 Jun. 2022
Then just set the coordinate of the plane you project on to 0 and calculate the arc length of the resulting projected curve.
An approximation for an XY-projected curve is e.g.
sum_{i=1}^{i=n-1} sqrt((x(i+1)-x(i))^2 + (y(i+1)-y(i))^2)
if it is represented in 3d by the points
P1 = (x1,y1,z1), P2=(x2,y2,z2),..., Pn = (xn,yn,zn)
0 Kommentare
Weitere Antworten (0)
Siehe auch
Kategorien
Mehr zu National Instruments Frame Grabbers finden Sie in Help Center und File Exchange
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!