How to formulate 2D frames if I have the origin of the frames (x, y) and the inclination angle of the frame with respect to the x-axis?

1 次查看（过去 30 天）

M 2022-5-13

0
链接

此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/1718925-how-to-formulate-2d-frames-if-i-have-the-origin-of-the-frames-x-y-and-the-inclination-angle-of-t

编辑： M 2022-5-16

How to formulate 2D frames if I have the origin of the frames (x, y) and the inclination angle of the frame with respect to the x-axis? Then I need to compute the transformation matrix of the frames w.r.t the reference frame (which is normal x and y directions)??

The attached files are the origins and the corrosponding angles.

0 个评论
显示 -2更早的评论隐藏 -2更早的评论

请先登录，再进行评论。

请先登录，再回答此问题。

采纳的回答

Matt J 2022-5-13

1
链接

此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/1718925-how-to-formulate-2d-frames-if-i-have-the-origin-of-the-frames-x-y-and-the-inclination-angle-of-t#answer_963680

编辑：Matt J 2022-5-13

在 MATLAB Online 中打开

T=makehgtform('translate',[x,y,0],...
              'zrotate',angleDegrees*pi/180, ...
              'translate',[-x0,-y0,0]);
T=T([1,2,4],[1,2,4]); %transformation matrix

10 个评论
显示 8更早的评论隐藏 8更早的评论

Matt J 2022-5-16

I've no way of "making" the origin whatI want. You're the one who defined the origins in your origins.mat file.

M 2022-5-16

编辑：M 2022-5-16

@Matt J Ok, but my question why did you choose the first origin in the .mat file to make it the reference, then you translate other origins to that origin ?

Also, Could you please tell me what does the fourth column in the transformation matrix represents?

请先登录，再进行评论。