Projection between two coordinate systems
2 Ansichten (letzte 30 Tage)
Ältere Kommentare anzeigen
I have two coordinate systems as the picture shown. I know the origin and unit vectors of the two coordinate systems. now, I want to project the coordinates in one coordinate system to another system. how could I do using Matlab? Thanks in advance!
0 Kommentare
Antworten (1)
Honglei Chen
am 24 Sep. 2018
Let's use coodinate system g as the reference and assume your coordinates are Pg = [xg;yg;zg]. For coordinate system l, the orgin is Ol = [xolg;yolg;zolg] and the three unit vectors are Xlg, Ylg, and Zlg. So you can define the transform matrix as [Xlg Ylg Zlg]. Then the new coordinate Pl can be represented as
Pl = M.'*(Pg-Ol)
If you have access to Phased Array System Toolbox, then you can try using
<https://www.mathworks.com/help/phased/ref/local2globalcoord.html>
or
<https://www.mathworks.com/help/phased/ref/global2localcoord.htm> l
depending on which one you want to use as a reference.
HTH
3 Kommentare
Honglei Chen
am 25 Sep. 2018
Could you be more specific? From my perspective, a line is a collection of points, so you can just line up multiple points in Pg and everything should work as is.
HTH
Siehe auch
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!