how to display the end-effector position?

7 次查看（过去 30 天）

显示更早的评论

Cheng Yoong 2011-5-21

0
链接

此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/7921-how-to-display-the-end-effector-position

I have a 3 links robot GUI software. The file can be downloaded through this link: http://www.sendspace.com/file/yrqzmp

I use the following command as callback for the textbox for x,y,z position:

set(handles.fromDHandTheta,'String',point4.x) but it doesn't work.

Anyone can help me with that?

Thanks in advance.

3 个评论
显示 1更早的评论隐藏 1更早的评论

Cheng Yoong 2011-5-24

Hi Jiro,

What you mean by putting a breakpoint?

Walter Roberson 2011-5-24

click on the dot that appears to the left of the line number of the line you want to stop at. Then run the program. It will stop executing when you reach that line, and you will be able to examine the state of the variables.

请先登录，再进行评论。

请先登录，再回答此问题。

回答（1 个）

Ben Mitch 2011-5-22

0
链接

此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/7921-how-to-display-the-end-effector-position#answer_10970

Hi Cheng

If you're going to post code, I think you'll have to trim it down to the essentials if you want anyone to look at it.

Perhaps you need this?

set(handles.fromDHandTheta, 'String', num2str(point4.x))

Cheers

5 个评论
显示 3更早的评论隐藏 3更早的评论

Cheng Yoong 2011-5-27

Thanks Ben, my problem solved, I just place the right code at the wrong place. =)

Anyway, do u familiar with robotic stuff?My final year project is about create this robot GUI software and simulate the motion of robot in virtual space. I would like to refine my robot drawing but I have limited knowledge on Matlab Graphic.

Ben Mitch 2011-5-27

Do you mean simulate or <http://cowsheep.net/link/110527 visualize>? In either case, the key feature is geometry. I recommend you start with "homogeneous coordinates", as the guys in 3D graphics do. Then you've got points (4x1 vectors) and transforms (4x4 matrices, like rotations or translations). Build a model of your robot out of points (think, solid parts) and transforms (think, joints with angles that vary over time). Build faces out of points, build solid parts out of faces. Try "doc patch" to get started with visualizing faces. Change the renderer to "OpenGL", YMMV. If you get stuck, post a specific question as a new thread. Good luck.

Of course, there may be tools for robot visualization so you don't have to build everything yourself. Simscape? Have a Google on matlab robot visualization.

请先登录，再进行评论。

请先登录，再回答此问题。