Tracing the Trajectory of a Circle of radius R around the line plot of position

9 次查看（过去 30 天）
William
William 2023-7-14
评论： Dyuman Joshi 2023-8-2
I am working on some plots between interacting micro-swimmers in a 2D fluid which are modelled as circles. I have my code to output the positions of the swimmers as they swim and interact. However, because they have a radius R I want to trace the path of the whole circle as it moves to check that the spheres don't collide as my model doesn't account for this.
Below I have an example of a plot of two interacting swimmers that deflect each other due to their flow/turbulance as they progress through the fluid. I would like each line to be exactly of thickness 1 (i.e Radius = 0.5). Changing the line thickness directly on the plot doesn't work as it does not scale with the magnification/axes scale. What would be good is keeping the original line but with a slightly transparent or lighter colour trace of a circle of radius R moving along this line.
Hope this makes sense,
Cheers

请先登录，再回答此问题。

回答（1 个）

Shushant
Shushant 2023-8-2
Ran in:
Hi William,
I understand that while plotting a line you want it to be of certain thickness, which is not affected by the change in scale. To achieve this you can use "polyshape".
For example, Plotting a line from (-5,0) to (0,60) with thickness 1.
pgon = polyshape([-5 -5 0 0], [0.5 -0.5 59.5 60.5]);
plot(pgon)
Refer to the following documentation for more information -
2-D polygonal shapes - MATLAB - MathWorks India
I hope this helped in solving the issue you were facing.
Thank you,
Shushant

类别

在 Help Center 和 File Exchange 中查找有关 Fluid Dynamics 的更多信息

标签

产品


版本

R2023a

Community Treasure Hunt

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

Start Hunting!

Translated by