# Arrows on trajectory as it evolves

**URL:** <https://discourse.julialang.org/t/arrows-on-trajectory-as-it-evolves/60733>\
**Category:** General Usage\
**Tags:** plotting, graphics, plots\
**Created:** [May 7, 2021, 5:05pm UTC](https://discourse.julialang.org/t/arrows-on-trajectory-as-it-evolves/60733 "2021-05-07T17:05:46Z")\
**Posts on this page:** 1\
**Showing post:** 2

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**Author:** ![dpsanders](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/dpsanders/32/3573_2.png) [@dpsanders](https://discourse.julialang.org/u/dpsanders)\
**Post date:** [May 7, 2021, 5:22pm UTC](https://discourse.julialang.org/t/arrows-on-trajectory-as-it-evolves/60733/2 "2021-05-07T17:22:21Z")

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You can do this with Makie. See this thread:

> [@Is there a streamlines function/package?](https://discourse.julialang.org/t/is-there-a-streamlines-function-package/34800):
>
> Does anyone know of a package to compute 3D streamlines in Julia? Like Matlab’s: [Compute 3-D streamline data - MATLAB stream3 - MathWorks Deutschland](https://de.mathworks.com/help/matlab/ref/stream3.html) I specifically want to get the XYZ data describing the streamlines. If not a package in Python that I can retrieve these with PyCall would also work. Tim

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