plot vectors head to tail
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hello I want to plot some vectors heads to tails in matlab.what should I do?I have found the compass command but it plots all of the vectors from the origin.
1 个评论
thiago rech
2020-11-16
Did you find another alternative? I am looking for something that could be used in simulink?
采纳的回答
I show you two methods. Both have their uses, so I'll let you decide which fits your needs:
% Make a vector from (2,3) to (7,8)
axes('pos',[0 0 1 1]);
axis([0 10 0 10])
H = annotation('arrow',[.2 .7],[.3 .8])
Notice, the annotation position is in terms of normalized figure units, not axes units. So if you don't want your axes to fill the figure, or if you want to not have "nice" limits (0-10), you have to do some math. It is not too hard, you just have to do some tweaking.
Another approach is to use the QUIVER function:
% Make a vector from (2,3) to (7,8)
cla
quiver(2,3,5,5)
axis([0 10 0 10])
4 个评论
Matt Fig
2012-10-22
If you read the help for QUIVER (never a bad idea when you encounter a function and have a question about it!!), you will see that you need to tell it to scale to 0 to get what you want...
cla
quiver(2,3,5,5,0)
axis tight
Please read this:
doc quiver
Gennaro Arguzzi
2017-11-12
Hello @Loginatorist, can you explain me your code please? I read the documentation, but it's difficult to pick up the right information.
I tried to plot the array [x1=3,y1=0]-->[x2=-1,y2=7]. Do to it I wrote the code:
%X=x2-x1=-1-3=-4
%Y=y2-y1=7-0=7
quiver(3,0,-4,7)
but I got the array [x1=3,y1=0]-->[x2=-0.6,y2=6.3]. How come?
Jan
2017-11-12
Disable the scaling:
quiver(3,0,-4,7, 0)
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