interactive drawpolygon for triangle, similar to drawrectangle and drawcircle

i want to code an interactive triangle,

i have saw a code for rectangles and circles, drawrectangle and drawcircle respectively

can i do the same for triangles?

if not, how do i make sure that the shape of the triangle is constant but allow enlargement and translation of the triangle?

Answer 1

[Ameer Hamza]

You can use drawpolygon(): https://www.mathworks.com/help/images/ref/drawpolygon.html

[Adrian Lee]

i have used it

however it does not allow for the triangle to have constant shape while allow for expansion

i used a listener function to maintain shape

i was wondering if there is a way to do it without the listener function

just as drawrectangle has a method to do it

roi = drawrectangle('FixedAspecRatio', 'True');

By default drawrectangle fixed aspect ratio is true

[Ameer Hamza]

Creating a listener seems to be the only solution for polygons.