# Quiver Plot Arrows too Wide

조회 수: 5 (최근 30일)
Andrew Chen . 2017년 4월 23일
댓글: Joaquin Guillamon . 2021년 8월 21일
Hello everyone, sorry I'm asking what seems like a rudimentary question but I've probably spent the better half of an hour online trying to solve my problem and I have not gotten anything to work. I'm making a quiver plot with specific vectors at specific locations using the plot function:
quiver(x,y,u,v)
unfortunately, my plot is what is shown below...
Those are arrows believe it or not. I can't seem to find a simple solution to making the arrow heads not so wide! My data in the x direction only varies from .6 to .7 but the x axis has been severely widened due to these wide arrows. Thank you for any help!
##### 댓글 수: 4이전 댓글 2개 표시이전 댓글 2개 숨기기
Pablo Israel Morales Guzmán 2021년 5월 4일
I think it has something to do with the values in both axes. They need to be have similar values in order for the arrows to display properly.
Joaquin Guillamon 2021년 8월 21일
Hi Pablo, I'm writing regading a similar issue with the width of the arrows in the quiver plot you've got some years ago. Could you realized what was the problem?? I've tried a lot of different things but cannot make it look nice those arrows... If you know how to solve it, I appreciate any suggestion or help you can give me! Thanks!

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### 답변 (2개)

Andrew Newell 2017년 4월 23일
Have you tried looking at the documentation for quiver? There is an option
quiver(...,scale)
In your example, you could try
scale=0.1;
quiver(x,y,u,v,scale)
and tweak scale to get what you want.
##### 댓글 수: 4이전 댓글 2개 표시이전 댓글 2개 숨기기
Andrew Chen 2017년 4월 24일
I've never come across this notation before. It doesn't seem to work. How would this code factor into actually plotting the quiver plot? I will do some searching to see if I can find an answer and will let you know if I find one if I do before you respond.
Andrew Newell 2017년 4월 24일
Working with Graphics Objects may help familiarize you with my use of h and the get/set interface. It certainly works in tests I have done.

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Timothy Russell 2017년 5월 26일
Another question I have about the quiver3 plot...I'm trying to graph a vector in 3D and want to save a picture of it at a certain angle but the arrow head doesn't show up well at that angle. Can I somehow rotate the vector so the arrowhead shows up? thanks, tim
##### 댓글 수: 1이전 댓글 -1개 표시이전 댓글 -1개 숨기기
KAE 2020년 2월 11일
Make this a separate question and you are more likely to get an answer.

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