Normal on line

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developer
developer 2011-7-5
Hello,
I have some points with a line and i want to draw normal vectors on that points.Like if i plot these points , i want normal to be drawn on the specified points only.
chkx=[730 710 705 686 688 679 676];
chky=[547,540,543,535,544,544,551];
chkz=[1187,1176,1187,1172,1195,1200,1216];
plot3(chkx,chky,chkz,'--rs','LineWidth',2,...
'MarkerFaceColor','k',...
'MarkerEdgeColor','g',...
'MarkerSize',2)
Thanks
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Oleg Komarov
Oleg Komarov 2011-7-5
http://www.mathworks.com/matlabcentral/answers/7885-tutorial-how-to-format-your-question

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回答（1 个）

Jan
Jan 2011-7-6
Normal to what? Your data are points in 3D, therefore a normal needs the definition of a plane. How do you define the planes for each point?
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developer
developer 2011-8-10
i actually want to construct a set of vectors
that are orthogonal to the tangential plane of each surface
point they touch.
Jan
Jan 2011-8-10
How is the plane defined?

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