清空筛选条件
清空筛选条件

Arrow between several points

48 次查看（过去 30 天）
ABCDEFG HIJKLMN
ABCDEFG HIJKLMN 2022-2-14
回答： Matt J 2022-2-14
I want to plot the evolution of a solution on a graph.
I have constructed a vector of x and y coordinates as rows, changing every column (at every iteration).
I would like to plot all the points but add arrows in the midpoint between each solution. Something like this:
Is this possible? Thanks in advance!

请先登录，再回答此问题。

采纳的回答

Matt J
Matt J 2022-2-14
You can use the annotation() command.
  4 个评论
显示 2更早的评论
ABCDEFG HIJKLMN
ABCDEFG HIJKLMN 2022-2-14
I would like to know how to do this automatically, that's what I was asking.
Matt J
Matt J 2022-2-14
编辑：Matt J 2022-2-14
Ran in:
The annotation command will let you draw an arrow between any two specified points. You can use the attached file data2units to convert the data coordinates to the units required by the annotation command, e.g.,
h=plot(2:6,'o'); axis equal
[X,Y]=data2units(gca,h.XData,h.YData);
Xmid=X(1:end-1)/2 + X(2:end)/2;
Ymid=Y(1:end-1)/2 + Y(2:end)/2;
annotation('arrow', [X(1), Xmid(1)],[Y(1), Ymid(1)])
annotation('arrow', [Xmid(1), X(2)],[Ymid(1), Y(2)])
%etc...

请先登录，再进行评论。

更多回答（1 个）

Matt J
Matt J 2022-2-14
Ran in:
It might be easier just to use quiver().
h=plot(2:6,'o'); axis equal
[X,Y]=deal(h.XData, h.YData);
q=(1:0.5:numel(X))';
X=interp1(X(:),q); Y=interp1(Y(:),q);
hold on
quiver(X(1:end-1),Y(1:end-1), diff(X), diff(Y),'off')
hold off

类别

在 Help Center 和 File Exchange 中查找有关 2-D and 3-D Plots 的更多信息

标签

产品


版本

R2021a

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!

Translated by