# Coloring of a closed area

John Andreasen shared this idea 6 years ago
Completed

I am fully aware of the fact, that this might be a little off topic, regarding to the nature of GeoGebra ;)

But it would be nice, if it were possible to colourize a closed area - something like this:

to this...

If there is a solution, I will be very happy.

/ John

1

Just find the parametric equation of your figure and then change the color and choose opacity equal to 100.

1

or defining each zone

Files: foro.ggb
1

como insertas el geogebra en el post?

supongo que con algun codigo de iframe pero no lo encuentro

1

Hola

La verdad no tengo idea. Recuerdo haber puesto solo el link y ahora que veo aparece así. Es un misterio.

Por cierto en la versión del teléfono aparece solamente el link. No aparece el iframe. Qué raro.

Saludos

1

quizas me han escuchado y lo estan preparando

https://help.geogebra.org/t...

1

Another interesting curve is this one:

1. Curve[(1 / 2 round(sin(3.2θ))² - 1 / 2 round(cos(3.2θ))² + 2.4asin(cos(3.2θ)); θ), θ, 0, 10π]

Kind regards

1

Wow - very nice examples - thank you

Regards, John

1

Playing more with parametric functions :)

Regards

1

Thanks for the suggestions to the current drawing. It helped me in making the attached file.

But the idea is more general meant... It would be nice if it was possible to fill any closed area with a color ;)

1

What about coloring area between 2 Rays?

Thank You.

1

with sector (example)

or creating two polygons and intersectpath[]

Files: foro.ggb